INFORMATION AND RULES
FOR
INSTALLATION OF GAS PIPING
VECTREN OF OHIO
MAY 2008
PREFACE
An electronic version of this manual can be found on Vectren’s website at:
www.vectrenenergy.com → Corporate → Energy Delivery Services → Services for Business →
Information for Ohio Plumbers
Refer to the electronic version for the most up-to-date information.
This manual does not include requirements for venting and appliance installation. Refer to the
International Fuel Gas Code (reference the version currently used by the Ohio Bureau of
Building Code Compliance) for this information.
INSPECTING AUTHORITY
The inspecting authority for the consumer's service piping shall be the Company.
When the city, county, or other governmental agency has an inspection authority, which covers
consumer's house lines, they will be responsible for inspections. In all other cases within
Vectren’s service territory, Vectren will make the necessary inspections. The following is a list
of localities where Vectren is the inspection authority for consumer's house lines (this list is
subject to change):
County
Champaign
Clark
Clinton
Darke
Fayette
Greene
Highland
Logan
Miami
Montgomery
Pickaway
Preble
Ross
Shelby
Warren
May 2007
Communities Inspected
Christiansburg, St. Paris, and Urbana
Medway, New Carlisle, North Hampton, Park Layne, and South Charleston
(residential only)
Sabina, and Port William
Entire county
Bowersville, New Holland, Sedalia, South Solon, all trailer parks,
Washington CH (residential only)
None
Entire county (residential only)
Belle Center, Bellefontaine, De Graff, Huntsville, Lakeview, Lewistown,
Quincy, Russells Point, and West Liberty
Entire county
None
Entire county
Camden, Eldorado, Lewisburg, New Paris, West Alexander, West
Manchester
Entire county (residential only)
Entire county except Anna, Jackson Center and those areas outside of any
corporate limits
Springboro, Waynesville, Corwin
i
REVISIONS TO PREVIOUS EDITION
Revisions to the version include:
Numerous wording revisions and updates have been made to the manual. Please review the
entire manual.
The more significant topics revised in this edition include:
•
•
•
•
•
•
•
Updated “Communities Inspected” list where Vectren is the inspection authority
Intermediate pressure range now included in medium pressure range
Low (standard) pressure identification changed from less than ½ psig to less than 1 psig
New section developed to address Operator Qualification, Drug & Alcohol and Welding
requirement (Section 4.6)
Requirement to case plastic pipe when using trenchless technology
New table (Table 16) “Casing Pipe Specifications for Plastic Carrier Pipe”
New “Approved Materials” Section 13
* Due to the number of changes, vertical marginal lines have been omitted
May 2007
ii
TABLE OF CONTENTS
1.0
INTRODUCTION................................................................................................................ 1
2.0 CONSUMER’S ADVISORY SERVICE & COMPANY OFFICES ............................... 2
3.0 DEFINITIONS ..................................................................................................................... 3
4.0
GENERAL INFORMATION ............................................................................................. 6
4.1
ACCESS TO PREMISES ..............................................................................................................................6
4.2
RESALE OF GAS PROHIBITED .................................................................................................................6
4.3
DISCONTINUANCE OF SUPPLY BECAUSE OF FRAUD........................................................................6
4.4
DISCONTINUANCE OF SERVICE DUE TO HAZARD ............................................................................6
4.5
TAMPERING................................................................................................................................................7
4.5.1
SEALS ....................................................................................................................................................7
4.5.2
LAWS RELATIVE TO TAMPERING .....................................................................................................7
4.6
NOTICE TO GAS SERVICE LINE INSTALLERS ......................................................................................7
4.6.1
OPERATOR QUALIFICATION (OQ) REQUIREMENTS.....................................................................7
4.6.2
DRUG AND ALCOHOL TESTING .......................................................................................................7
4.6.3 WELDER QUALIFICATION.....................................................................................................................8
5.0 CONSUMER’S SERVICE PIPE........................................................................................ 9
5.1
GENERAL.....................................................................................................................................................9
5.1.1
REQUEST FOR SERVICE.....................................................................................................................9
5.1.2
MORE THAN ONE BUILDING ON PREMISES.................................................................................10
5.1.3
MULTI-FAMILY DWELLINGS ...........................................................................................................10
5.1.4
SERVICE TO TEMPORARY BUILDINGS, MANUFACTURED HOMES, AND MOBILE HOMES ..11
5.2
OWNERSHIP AND RESPONSIBILITY ....................................................................................................12
5.2.1
GENERAL............................................................................................................................................12
5.2.2
EXCESS FLOW VALVES.....................................................................................................................12
5.3
POINT OF DELIVERY...............................................................................................................................12
5.3.1
GENERAL............................................................................................................................................12
5.3.2
MAIN IN STREET................................................................................................................................12
5.3.3
MAIN IN ALLEY ..................................................................................................................................13
5.3.4
MAIN IN EASEMENT OR RIGHT-OF-WAY.......................................................................................13
5.3.5
BASEMENT EXTENDS TO CURB LINE ............................................................................................13
5.3.6
FOREIGN GAS MAINS .......................................................................................................................14
5.3.7
FARM TAPS.........................................................................................................................................14
5.4
SIZING ........................................................................................................................................................14
5.4.1
GENERAL............................................................................................................................................14
5.4.2
DISTRIBUTION PRESSURES.............................................................................................................14
5.5
LOCATION OF SERVICE..........................................................................................................................15
5.5.1
GENERAL............................................................................................................................................15
5.5.2
PIPE ALONG THE SIDE OF BUILDING...........................................................................................16
5.5.3
PIPE UNDER CONCRETE .................................................................................................................16
5.5.4
PIPE UNDER THE BUILDING ..........................................................................................................16
5.5.5
ENTRY TO BUILDING........................................................................................................................16
5.5.6
PROHIBITED LOCATIONS................................................................................................................17
5.6
RISERS........................................................................................................................................................17
5.6.1
GENERAL............................................................................................................................................17
5.6.2
OUTSIDE METER SETS .....................................................................................................................17
5.6.3
OUTSIDE RISER, INSIDE METER SET .............................................................................................17
5.6.4
INSIDE RISER, INSIDE METER SET .................................................................................................17
5.6.5
RISERS IN CONCRETE OR ASPHALT...............................................................................................18
5.6.6
PROTECTION OF RISERS OR METER SETTINGS...........................................................................18
May 2007
iii
6.0 SPECIFICATIONS FOR INSTALLATION OF CONSUMER SERVICE LINE
WITH PLASTIC PIPE...................................................................................................... 19
6.1
GENERAL...................................................................................................................................................19
6.2
MATERIAL.................................................................................................................................................19
6.3
GENERAL CONSUMER SERVICE REQUIREMENTS ...........................................................................19
6.4
FITTINGS FOR PLASTIC PIPE .................................................................................................................22
6.5
QUALIFICATION OF PERSONS MAKING JOINTS ...............................................................................22
6.6
GENERAL INFORMATION FOR PLASTIC INSERT IN STEEL SERVICE LINE .................................22
6.6.1
SPECIFICATIONS ..............................................................................................................................22
6.6.2
INSERTION INSTALLATION REQUIREMENTS................................................................................23
7.0 SPECIFICATION FOR INSTALLATION OF CONSUMER SERVICE LINE WITH
STEEL PIPE....................................................................................................................... 24
7.1
GENERAL...................................................................................................................................................24
7.2
MATERIAL.................................................................................................................................................24
7.2.1
PIPE.....................................................................................................................................................24
7.2.2
SCREW FITTINGS ..............................................................................................................................24
7.2.3
COMPRESSION FITTINGS ................................................................................................................24
7.2.4
METER STOPS AND VALVES ............................................................................................................25
7.2.5
LUBRICATED PLUG VALVES ...........................................................................................................26
7.2.6
BALL VALVES .....................................................................................................................................26
7.2.7
GATE VALVES ....................................................................................................................................26
7.2.8
APPROVAL OF MATERIAL................................................................................................................26
7.3
INSTALLATION ........................................................................................................................................26
7.3.1
GENERAL............................................................................................................................................26
7.3.2
TRENCH..............................................................................................................................................26
7.3.3
JOINING STEEL PIPE........................................................................................................................27
7.3.4
WELDING LIMITATIONS...................................................................................................................27
7.3.5
BACKFILLING ....................................................................................................................................27
8.0 SERVICE PRESSURE REGULATORS......................................................................... 28
8.1
GENERAL...................................................................................................................................................28
8.2
OWNERSHIP AND RESPONSIBILITY ....................................................................................................28
8.3
LOCATION.................................................................................................................................................28
8.3.1
GENERAL............................................................................................................................................28
8.3.2
PROHIBITED LOCATIONS................................................................................................................28
8.3.3
MEDIUM PRESSURE (1 psig to 20 psig) ...........................................................................................28
8.3.4
MEDIUM PRESSURE (greater than 20 to 60 psig) ............................................................................29
8.3.5
HIGH PRESSURE (greater than 60 psig) ...........................................................................................29
8.3.6
TAPS ON TRANSMISSION LINES......................................................................................................29
8.3.7
COMMERCIAL AND INDUSTRIAL SETTINGS.................................................................................29
8.4
VENTING ...................................................................................................................................................29
8.4.1
SERVICE PRESSURE REGULATORS................................................................................................29
May 2007
iv
9.0
METERS............................................................................................................................. 30
9.1
GENERAL...................................................................................................................................................30
9.2
OWNERSHIP AND RESPONSIBILITY ....................................................................................................30
9.3
LOCATION.................................................................................................................................................30
9.3.1
GENERAL............................................................................................................................................30
9.3.2
PROHIBITED LOCATIONS................................................................................................................30
9.3.3
LOW PRESSURE (less than 1 psig) AND MEDIUM PRESSURE (greater than 1 psig to 20 psig) ....30
9.3.4
MEDIUM PRESSURE (greater than 20 to 60 psig) ............................................................................31
9.3.5
HIGH PRESSURE (greater than 60 psig) ...........................................................................................31
9.3.6
TAPS ON TRANSMISSION LINES......................................................................................................31
9.3.7
COMMERCIAL AND INDUSTRIAL SETTINGS.................................................................................31
9.4
INSTALLATION ........................................................................................................................................31
9.4.1
GENERAL............................................................................................................................................31
9.4.2
SUPPORT ............................................................................................................................................32
9.4.3
INSULATION.......................................................................................................................................32
9.4.4
METER HEIGHT.................................................................................................................................32
9.4.5
MULTIPLE INSTALLATIONS.............................................................................................................32
9.4.6
METER VALVES .................................................................................................................................32
9.4.7
PROTECTIVE DEVICES.....................................................................................................................32
9.4.8
METER COVERS AND SHELTERS ....................................................................................................33
10.0 CONSUMER’S HOUSE LINES....................................................................................... 34
10.1 GENERAL...................................................................................................................................................34
10.2 OWNERSHIP AND RESPONSIBILITY ....................................................................................................34
10.3 SIZING ........................................................................................................................................................34
10.3.1 NEW PIPING.......................................................................................................................................34
10.3.2 EXTENSIONS ......................................................................................................................................34
10.3.3 MINIMUM ...........................................................................................................................................34
10.4
MATERIAL.............................................................................................................................................35
10.4.1 GENERAL............................................................................................................................................35
10.4.2 PIPE.....................................................................................................................................................35
10.4.3 FITTINGS ............................................................................................................................................35
10.4.4 VALVES ...............................................................................................................................................35
10.5 INSTALLATION ........................................................................................................................................36
10.5.1 GENERAL............................................................................................................................................36
10.5.2 PROHIBITED LOCATIONS................................................................................................................37
10.5.3 SUPPORTING PIPE............................................................................................................................37
10.5.4 OUTLETS ............................................................................................................................................37
10.5.5 CONCEALED PIPE AND FITTINGS .................................................................................................37
10.5.6 PIPING BETWEEN BUILDINGS........................................................................................................38
10.6 HOUSE LINE SHUT-OFF VALVES..........................................................................................................38
10.6.1 GENERAL............................................................................................................................................38
10.6.2 MULTIPLE HOUSE LINES.................................................................................................................39
10.6.3 GAS APPLIANCE ................................................................................................................................39
10.7 ELECTRICAL GROUND AND BONDING...............................................................................................39
10.7.1 ELECTRICAL GROUND.....................................................................................................................39
10.7.2 ELECTRICAL CONTINUITY AND BONDING...................................................................................39
10.8 CORRUGATED STAINLESS STEEL TUBING........................................................................................40
10.8.1 GENERAL............................................................................................................................................40
10.8.2 MATERIAL ..........................................................................................................................................40
10.8.3 SYSTEM DESIGN................................................................................................................................40
10.8.4 INSTALLATION...................................................................................................................................41
10.8.5 INSPECTION.......................................................................................................................................42
10.8.6 TESTING .............................................................................................................................................43
May 2007
v
11.0 INSPECTION AND TESTING ........................................................................................ 44
11. 1
GENERAL...............................................................................................................................................44
11.1.1 INSPECTING AUTHORITY ................................................................................................................44
11.1.2 RESPONSIBILITY ...............................................................................................................................44
11.1.3 CONDITIONS OF TEST......................................................................................................................44
11.2 REQUIRED INSPECTIONS AND TESTS .................................................................................................45
11.2.1 VISUAL INSPECTION ........................................................................................................................45
11.2.2 PRESSURE TEST ................................................................................................................................45
11.2.3 REPAIRED, REMODELED OR EXTENDED HOUSE LINE PIPING ...............................................45
11.2.4 TEMPORARILY DISCONNECTED OR ABANDONED CONSUMER SERVICE PIPING.................46
11.3 PURGING AFTER TEST............................................................................................................................46
12.0 PROTECTIVE COATINGS AND CATHODIC PROTECTION ................................ 47
12.1 GENERAL...................................................................................................................................................47
12.2 PROTECTIVE COATING ..........................................................................................................................47
12.2.1 GENERAL............................................................................................................................................47
12.2.2 APPROVED MILL APPLIED PIPE COATING ..................................................................................47
12.2.3 PROTECTIVE COATINGS FOR UNDERGROUND JOINTS, FITTINGS & CONNECTIONS..........47
12.2.4 FIELD APPLICATION ........................................................................................................................47
12.2.5 STORAGE, HANDLING AND INSTALLING ......................................................................................48
12.2.6 PROTECTIVE COATINGS FOR EXPOSED PIPE AND FITTINGS ..................................................48
12.3 CATHODIC PROTECTION .......................................................................................................................48
12.3.2 ANODE INSTALLATIONS ..................................................................................................................49
12.3.3 ANODE LEAD ATTACHMENT...........................................................................................................49
13.0 APPROVED MATERIALS .............................................................................................. 51
13.1 PLASTIC PIPE AND TUBING...................................................................................................................51
13.2 TRACER WIRE SPECIFICATIONS ..........................................................................................................51
13.2.1 COPPER CLAD STEEL TRACER WIRE.............................................................................................52
13.3 SERVICE RISERS ......................................................................................................................................52
13.3.1 SERVICE HEAD ADAPTERS..............................................................................................................53
13.4 MECHANICAL FITTINGS: PLASTIC TO PLASTIC CONNECTIONS ..................................................54
13.5 MECHANICAL FITTINGS: STEEL PIPE TO PLASTIC PIPE..................................................................57
13.6 MECHANICAL FITTINGS: STEEL PIPE TO STEEL PIPE......................................................................57
13.7 METER BARS ............................................................................................................................................59
13.8 METER SET VALVES ...............................................................................................................................60
13.9 WELD / FLANGE VALVES.......................................................................................................................61
13.10 MOBILE HOME GAS CONNECTORS .....................................................................................................61
13.11 CORRUGATED STAINLESS STEEL TUBING AND COMPONETS .....................................................61
13.12 SLEEVES FOR MASONRY WALL ENTRANCES ..................................................................................61
May 2007
vi
TABLES
Page
Table 1
Maximum Capacity of Pipe – Low Pressure
53
Table 2
Maximum Capacity of Pipe – Medium Pressure - 5 psig Systems
54
Table 3
Maximum Capacity of Pipe – Medium Pressure - 20 psig Systems
54
Table 4
Maximum Capacity of Pipe – Medium Pressure - 30 psig to 60 psig Systems
54
Table 5
Minimum Bend Radii for Various Pipe Sizes
55
Table 6
Minimum Standard Dimensional Ratio (SDR) and Wall Thickness
55
Table 7
Maximum Insert Size for Various Service Sizes
55
Table 8
Typical House Line Size for Normal Residential Use
56
Table 9
Maximum Capacity of Pipe in Cubic Feet of Gas per Hour
57
Table 10
Maximum Support Spacing for Various Pipe Sizes
58
Table 11
Service and House Line Tests
59
Table 12
Minimum Alloy Specifications for Magnesium Anodes
60
Table 13
Anode Requirements
60
Table 14
Gas Flow Rates in Cubic Feet per Hour to Check Appliances
61
Table 15
Approx. Flow of Gas through Fixed Orifices in Cubic Feet per Hour
64
Table 16
Casing Pipe Specifications for Plastic Carrier Pipe
68
Figure 1
Typical Service Installations for Single Buildings
68
Figure 2
Typical Service & Meter Installation in New Developments
FIGURES
(After September 1995)
68
Figure 3
Typical Service Riser for Outside Meter Setting
69
Figure 4
Consumer Service Using Plastic Pipe Under Paved Area
69
Figure 5
Outside Meter Setting - Low Pressure
70
Figure 6
Outside Meter Setting - Medium Pressure
70
Figure 7
Regulator and Meter Setting - 61 psi to 250 psi
71
Figure 8
Regulator and Meter Setting Above 250 psi
71
Figure 9
Regulator Meter Setting with Underground Plastic House Line
72
Figure 10
Plastic Insert for Outside Riser
72
Figure 11
Plastic to Steel Transition Fittings
73
Figure 12
Gas Line Installation Through Walls
73
Figure 13
Cased Gas Line Laid Under Building
74
Figure 14
Plastic Insert for Inside Riser
74
Figure 15
Venting of Underground Casing Through a Confined Area
75
Figure 16
Existing Service Inserted and Vented Under Un-Attached Garage
75
Figure 17
Channels
76
Figure 18
Meter Set Barricade
76
May 2007
vii
EXHIBITS
Exhibit 1
Customer Owned Pipe Notification
78
Exhibit 2
Plastic Joining And Welding Qualification Cards
80
May 2007
viii
SECTION 1
INTRODUCTION
This manual is presented to give essential data concerning residential and commercial gas
service installations. Large commercial and industrial gas service installations will be handled
on an individual basis by the Company.
The rules contained in this manual are compiled from generally accepted standards in the
industry and the Company’s many years of experience in providing a safe and efficient product
for our consumer’s use.
Representatives from our Service and Sales Departments are available for information or
assistance as needed. Contacts with these departments should be made for supplying proper
service at minimum cost.
Applicable Codes (reference the latest version of the codes listed unless otherwise noted)
American National Standard Code Gas Transmission and Distribution Piping Systems, ANSI
B31.8.
American National Standard Code - Fuel Gas Piping Using Corrugated Stainless Steel Tubing
(CSST) LC-1.
ASME Boiler and Pressure Vessel Code Section IX: Welding and Brazing Qualifications.
Control of External Corrosion on Underground or Submerged Metallic Piping Systems, NACE
RP-0169.
Department of Transportation Minimum Federal Safety Standards for Gas Lines, Part 192,
Title 49, Code of Federal Regulations (CFR).
Department of Transportation Minimum Federal Safety Standards for Drug and Alcohol Testing,
Part 199, Title 49, CFR.
Department of Transportation Procedures for Transportation Workplace Drug and Alcohol
Testing Programs, Part 40, Title 49, CFR.
National Fire Protection Association (NFPA) No. 501A, Standard for Fire Safety Criteria for
Manufactured Home Installation, Sites, and Communities.
National Electrical Code, NFPA 70.
International Fuel Gas Code (reference the version currently used by the Ohio Bureau of
Building Code Compliance).
The Ohio Basic Building Code, Mechanical Edition.
December 2007
1
SECTION 2
CONSUMER’S ADVISORY SERVICE
Energy representatives are available to help consumers in matters of gas service design, service
applications, rates and usage analysis and energy and load management opportunities, including
conservation techniques and production methods.
COMPANY OFFICES
To contact VECTREN call:
1-800-227-1376
- New Business Service Center, to request gas service
or report gas leaks
1-800-229-2644 - For gas service status inquiries.
Website: http://www.VECTREN.com
December 2007
2
SECTION 3
DEFINITIONS
The meanings of other terms used, but not defined in this manual, shall be the same as those
given by the International Fuel Gas Code (refer to the version currently used by the Ohio Bureau
of Construction Compliance – Plumbing).
AGA
American Gas Association
APPLIANCES
A gas appliance is a device, which utilizes gas fuel to produce light, heat, power, refrigeration, or
air conditioning.
APPROVED
Approved, in reference to material items described in this manual, indicates that these materials
have been reviewed through testing or experience by the Company, and have been found
acceptable for use in gas piping systems covered by this manual.
Materials submitted for review and found to be satisfactory for the use intended, will be added to
the list of approved materials. In addition, if after investigation an approved item does not
continue to meet the desired Company standards, it will be removed from the approved materials
listing.
The Company should be contacted with any questions regarding approved materials.
COMPANY
Vectren Energy Delivery of Ohio is herein referred to as the Company.
COMPANY METER CONNECTION
The Company’s meter connection is the gas meter and those fittings required to connect the
consumer’s service pipe and the consumer’s house lines.
COMPANY SERVICE PIPE
The Company service pipe is that pipe extending from the Company’s gas main to the point of
delivery.
December 2007
3
CONSUMER
The consumer is the person, firm, municipality or corporation using gas delivered to the
premises, building or establishment where used, or for whose account and use such gas is
delivered, and may be the owner, occupant, tenant or lessee of the premises, building or
establishment.
CONSUMER’S HOUSE LINE
The consumer’s house lines consist of pipe and fittings from the outlet of the meter to the shut
off valve ahead of each gas-burning appliance. Includes the buried gas line (yard line) if the
meter is near the property line.
CONSUMER’S SERVICE PIPE
The consumer’s service pipe is the pipeline used to convey gas from the point of delivery to the
outlet of the meter.
CSST
Corrugated Stainless Steel Tubing – pipe which may be used for consumer’s house line when
installed in accordance with the provisions of Section 10.8.
CTS
Copper Tube Size, used for plastic pipe.
EXCESS FLOW VALVE
A buried valve designed to interrupt the flow of natural gas in a service line if the service line is
severed.
FARM TAP
A residential service generally on a high pressure main (above 60 psig) or transmission pipeline
with 2 or 3 stage regulation.
HDPE
Refers to High Density (PE 3408/4710) plastic pipe. (See Sec 6.1)
IPS
Iron Pipe Size, used for steel pipe.
December 2007
4
MANUFACTURED HOME
A structure, transportable in one or more sections, that, in the traveling mode, is 8 body feet
(2.4 m) or more in width and 40 body feet (12 m) or more in length or, when erected on site, is
320 or more square feet (28.8 sq m), that is built on a permanent chassis and designed to be used
as a dwelling with or without a permanent foundation when connected to the required utilities,
and that includes the plumbing, heating, air conditioning, and electrical systems contained
thereof.
MOBILE HOME
A vehicular, portable structure built on a chassis and designed to be used without a permanent
foundation as a dwelling, which may be connected to utilities.
OPERATOR QUALIFICATION
The minimum requirements for operator qualification of individuals performing covered tasks on
a pipeline facility as required by the federal pipeline safety regulations.
POINT OF DELIVERY
The point of delivery of gas supplied by the Company shall be at the Company’s curb valve or
where the gas passes from the pipe of the Company into the service line or pipe of the consumer
(see Section 5.3).
QUALIFIED INSTALLING AGENCY
An individual, firm, corporation or company which either in person or through a representative is
engaged in and is responsible for the installation or replacement of gas piping and who is
experienced in such work, familiar with the precautions required, and has complied with the
requirements of the authority having jurisdiction.
LOW PRESSURE DELIVERY (STANDARD)
Gas provided by the Company at 7” w.c. (less than 1 psig). This is also referred to as Standard
Pressure . For other system pressure ranges see Section 8.3.
December 2007
5
SECTION 4
GENERAL INFORMATION
4.1
ACCESS TO PREMISES
The duly authorized agents of the Company shall have the right to enter the consumer’s
premises at all reasonable hours for the purpose of reading meters, testing, inspecting the
consumer’s gas piping systems and for the purpose of installing, testing, inspecting,
keeping in repair and for removal of any or all of the Company’s equipment used in
connection with the supply, distribution and burning of gas.
4.2
RESALE OF GAS PROHIBITED
Gas supplied by the Company is for the exclusive use of the consumer on the premises to
which such gas is delivered by the Company. In no case may service be shared with
other premises, or sold to another consumer.
4.3
DISCONTINUANCE OF SUPPLY BECAUSE OF FRAUD
In the event the consumer resorts to fraudulent practice in the use of the gas supplied, or
is the beneficiary of fraudulent practice, or the Company’s meter, metering equipment or
property has been damaged due to fault or negligence on the part of the consumer, his
employees, or agents, the Company will discontinue its gas service without notice.
Service will not be restored or resumed until the consumer has given satisfactory
assurance that such fraudulent use, tampering, damage or negligence has been
discontinued, and shall have paid to the Company an amount estimated by the Company
to be reasonable compensation for gas fraudulently used and not paid for, the costs
incurred for disconnection, and for any resulting damage to property of the Company,
plus a reconnection charge.
4.4
DISCONTINUANCE OF SERVICE DUE TO HAZARD
The authorized agents of the Company, at all reasonable times, shall have free access to
the premises in which gas is used to determine if the gas is being carried, distributed and
burned in a safe manner and in accordance with the Company’s rules and regulations.
The Company reserves to itself the right to discontinue, without advance notice, the
supply of gas to any consumer when a hazardous condition is discovered to exist on the
consumer’s premises or when, because of conditions beyond the consumer’s premises,
such discontinuance of gas supply is reasonably necessary. Service will not be restored
until such hazardous condition or conditions have been corrected.
December 2007
6
4.5
TAMPERING
4.5.1 SEALS
Meter and metering equipment installations will be sealed by the Company and/or
manufacturer. Breaking of the Company’s and/or manufacturer’s seals by
unauthorized persons will be deemed tampering with the service.
4.5.2
LAWS RELATIVE TO TAMPERING
The Revised Code of the State of Ohio provides for the prosecution of anyone
who tampers with a gas meter or utility equipment, steals utility service, uses
utility service under a falsified service application or benefits from these acts.
The Company will prosecute, as it deems necessary, any person or persons found
in violation of these laws.
The law also provides that the cost of service stolen or equipment damaged shall
be repaid to the utility.
4.6
NOTICE TO GAS SERVICE LINE INSTALLERS
As of July 1, 2007, ALL gas service line installers, including those doing new
construction work, must meet the following requirements.
4.6.1 OPERATOR QUALIFICATION (OQ) REQUIREMENTS
Installers must participate in a program that meets the requirements of 49 CFR
Part 192 Subpart N. Installers must qualify initially, and every three years
thereafter on appropriate covered tasks identified by Vectren. All installers must
be initially qualified and annually thereafter in accordance with 49 CFR Part
192.285. To become qualified, Vectren requires you to contact:
Utility Technologies International Corporation (UTI)
(614) 879-7316
Contact: Barbara Lewis
OR
Members of UA Local 162
(937) 223-8534
Contact: Jim Baker
4.6.2 DRUG AND ALCOHOL TESTING
Installers must participate in a program that meets the requirements of 49 CFR
Part 40, Procedures for Transportation Workplace Drug and Alcohol Testing
Programs and 49 CFR Part 199 (Subparts A & B), Drug and Alcohol Testing.
Vectren requires you to contact:
Motor Carrier Consultants, Inc.
December 2007
7
(812) 437-3661
Contact: Pat Myers
4.6.3 WELDER QUALIFICATION
Installers who utilize welders during the installation of gas service lines and meter
sets must have welders that are qualified in accordance with 49 CFR 192.227,
192.229, American Petroleum Institute (API) 1104 19th Edition or Section IX of
the ASME Boiler and Pressure Vessel Code. This will require the welder to have
an initial qualification based on destructive testing and every six months hereafter
have an x-ray test to continue welding. Vectren requires you to contact:
Hobart Welding Institute (initial test)
(800) 332-9448 x5107
Contact: Jim Collins
OR
Fischer Engineering (x-ray test)
(937) 754-1750
Contact: Glenn Fischer
OR
Members of UA Local 162
(937) 223-8534
Contact: Jim Baker
Meeting the approval of UTI or Local 162, Hobart Welding Institute and Motor Carrier
Consultants, are required to be added to the approved service provider list.
Vectren is fully committed to complying with all Federal and State regulations and takes
seriously its role in providing a safe and reliable natural gas delivery system. Service line
installers must adhere to Vectren policies and procedures, or the right to install service lines may
be revoked.
Each individual that has met the plastic joining or steel welding requirement(s) will receive a
wallet card which should be carried by the individual during these installations (see Exhibit
2). It is not acceptable for an employee of a company to use the card of their supervisor or
another employee. During inspections of these job sites the individual may be asked to show
these qualification cards to verify they are current and the appropriate covered tasks are listed.
For question, please contact one of the following:
Operator Qualification
Welder Qualification
Drug and Alcohol
Testing
Contact: Debbie Tucker
Contact: Mike Myers
Contact: Pat Myers
Office – 812-491-4583
Office - 812-736-2936
Office - 812 437-3661
dtucker@vectren.com
rmyers@vectren.com
pmyers@vectren.com
December 2007
8
SECTION 5
CONSUMER’S SERVICE PIPE
5.1
GENERAL
5.1.1 REQUEST FOR SERVICE
Request for service should be made by the consumer, owner or their agent as
soon as the structure is being planned, by telephone call to 1-800-227-1376.
The following information should be given when the request is made:
1.
2.
3.
4.
5.
Name.
Exact address or descriptive location at which service is requested.
The date service will be required.
Total connected load.
Type of load, such as space heating, air conditioning, water heating, cooking,
or industrial process, etc.
6. Special delivery pressure considerations.
The Company will determine if a main extension is required, advise the consumer
or consumer’s representative of the terms and conditions for the extension and
explain deposit requirements, if necessary.
The consumer, owner or their agent will then be responsible for arranging the
installation, inspection and testing of the consumer’s service pipe and house lines
in accordance with the rules and information set forth in this manual. The
following sequence is suggested:
1. Immediately after the foundation of the structure is installed, call the New
Business Service Center (see Section 2) for a premise code. At this time a
phone number will be provided to schedule a service survey. The Company
will determine the acceptable meter location, and the location and size of the
consumer’s service pipe to the meter. If a survey is not scheduled and
conducted, the customer is responsible for any costs associated with
correcting a faulty installation.
2. If plastic joining or welding is to be performed on any piping systems
(including meter settings), the individual must be qualified in accordance with
Section 4.6 “Operator Qualification Requirements”.
3. Install the consumer’s service pipe and house piping system per this manual.
Obtain the appropriate regulator (if required) from the Company.
4. Call the Company for ditch inspection and witnessing the pressure test of the
consumer service pipe. Call the Company or authorized agency for a
consumer house line inspection (see Section 11). The consumer’s service
ditch shall be backfilled within 24 hours after approved inspection and testing.
The Company then automatically schedules tie-in, unless a curb stop has
December 2007
9
previously been installed, in which case an operator qualified individual may
complete the tie-in.
5. Call the Company requesting a meter set after the following conditions have
been met:
A. Approved testing and inspection of the consumer’s service pipe and house
lines.
B. Where required - a city or county plumbing release for new construction
or service renewal, and a county certificate of occupancy.
C. Service pipe ditch back-filled.
D. Arrangements for access for service personnel shall be provided to
buildings, vacant or occupied.
E. An approved valve shall be installed at the end of all branched house lines
and connected to a vented appliance or be plugged.
F. Grade shall be within 6 inches from final grade established.
G. Access to the curb box and valve must be maintained at all times.
H.
Before service is established the consumer shall meet the Company’s
Customer Service requirements.
5.1.2 MORE THAN ONE BUILDING ON PREMISES
Where more than one dwelling or building under single ownership is located on a
premise, normally, only one Company service will be provided. Where separate
meters are desired for supplying other buildings on the same property, they shall
be manifold with the meter supplying the primary/main building of the consumer
(see Figure 1, Example A). Where necessary for gas lines to cross property lines
owned by another, there must be documented legal agreement.
5.1.3 MULTI-FAMILY DWELLINGS
For multi-family dwellings only one consumer’s gas service pipe is required and
the meters shall be manifold outside at one location when practical (see Figure 1,
Example B). A tamperproof lockstop shall be installed ahead of each regulator
and/or meter. This does not preclude the use of separate consumer’s gas service
pipe when in the judgment of the Company more than one service pipe is
required.
On renewals, with Company-approved inside meter settings, in multi-family
dwellings having independent basements, only one consumer’s gas service pipe is
required. The meters should be located in a common basement, such as a laundry
room, accessible to service personnel or the meters may be located in their
independent basements with a tamperproof lockstop installed ahead of each
regulator and/or meter accessible to the occupant. This does not preclude the use
December 2007
10
of separate consumers’ gas service pipes for doubles, duplexes, apartments,
condos.
On multiple meter installations, each meter spread shall be plainly and properly
identified by the installing agent with a permanent, weatherproof tag, designating
the apartment or the part of the building it supplies.
5.1.4 SERVICE TO TEMPORARY BUILDINGS, MANUFACTURED HOMES,
AND MOBILE HOMES
A gas service for a temporary building, manufactured home, or mobile home
where there is no permanent foundation must be approved by a Company
representative.
Gas will be made available to manufactured and mobile home parks either
through a single meter at the point of delivery to the park or through individual
meters.
Gas piping and equipment (other than Company meters and regulators)
downstream of the Company’s point of delivery shall be installed and maintained
at the expense of the complex, operator, or the individual consumer(s) and shall
be installed in accordance with the Company’s General Service Rules and
Regulations and/or local code.
If individual Company meters are used, the Company shall determine the type of
distribution and location of meters and regulators. The park owner is to provide
the final grade prior to installation of the distribution system.
Above ground gas piping and equipment shall be protected from any possible
damage by impact from vehicles or other power operated equipment.
The gas supply connection shall be readily accessible and installed to permit
direct attachment to a manufactured or mobile home occupying a site. The
connection shall be outside of the home and above ground by means of an AGA
approved flexible manufactured or mobile home connector not to exceed six feet
in length. An approved type shut-off valve and an insulated union shall be
installed in an accessible location ahead of the connector. An insulated union is
not required if the underground supply pipe is plastic and an anodeless riser is
used at the site connection. If the buried supply pipe is steel, it must be properly
coated an anode must be attached to the riser pipe (see Section 12).
The flexible connector shall not pass through permanent walls, ceilings or floors,
nor be concealed from view. All piping below the manufactured or mobile home
or passing through the floor shall be steel pipe complying with Section 10.4.2.
An access door shall be provided in a skirt wall, enclosing the undercarriage of a
manufactured or mobile home to permit entry for inspection of gas supply piping
and connections. The door shall be located in the immediate vicinity of the gas
supply connection.
December 2007
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5.2
OWNERSHIP AND RESPONSIBILITY
5.2.1
GENERAL
The consumer’s service pipe consists of the pipe and fittings from the point of
delivery to the meter outlet. The consumer shall be responsible for the installation
and maintenance of the consumer service pipe at their own expense and in
accordance with the rules and regulations contained herein including Operator
Qualifications and Drug and Alcohol Testing as detailed in Section 4.6 “Notice to
Gas Service Line Installers”, and subject to inspection and test as provided in
Section 11. Exhibit 1 shows a sample Customer Owned Piping Notification. The
consumer assumes all risk resulting from defects or faulty installation and
maintenance.
The materials, installation, and location of the consumer’s service pipe shall be
subject to the rules and regulations contained herein and subject to inspection and
test as provided in Section 11.
5.2.2 EXCESS FLOW VALVES
An excess flow valve (EFV) is a device designed to automatically interrupt the
flow of natural gas if the gas service line is punctured or severed. The Company
installs EFVs on single residential customers with new or replaced residential gas
service lines, which operate continuously at or above 10 psig. The Company also
installs EFVs on services tapped directly off of Company transmission lines.
5.3
POINT OF DELIVERY
5.3.1
GENERAL
See Section 3 for definition of point of delivery. A Company representative will
determine the location of the service pipe and the point of delivery. This Section
provides guidelines for determining the point of delivery in the absence of a curb
valve.
5.3.2 MAIN IN STREET
When the gas main is located in a street under pavement, the point of delivery will
be located one foot (1') inside the existing or proposed curb. If obstructions
(sidewalks, etc.) or main location prevent this, then the location shall be at least
one foot (1') from the main and/or obstruction, but in any case in back of the
existing or proposed curb.
When the sidewalk extends from the curb to the building, the point of delivery
shall be located one foot (1') in back of the curb.
When there are no curbs within the street, the point of delivery will be located
within the road right-of-way and approximately nine feet (9') outside the property
line. If obstructions (drainage ditch, sidewalk, etc.) or main location prevent this,
then the location shall be at, or no more than, one foot (1') from the main and/or
obstruction.
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When the main is located between the existing or proposed curb location and the
property line, the point of delivery shall be at, or no more than, one foot (1') from
the main.
5.3.3 MAIN IN ALLEY
When the gas main is located in an alley, the point of delivery shall be in the alley
approximately one foot (1') outside the consumer’s property line, where possible.
5.3.4 MAIN IN EASEMENT OR RIGHT-OF-WAY
When the gas main is located in an easement or private right-of-way on the
consumer’s property, the point of delivery shall be one foot (1') from the main.
When the gas main is located on adjoining property, or on the opposite side of the
street, the point of delivery shall be four feet (4') inside the consumer’s property
line.
When the gas main is located on adjoining property and no easement or right-ofway exists on the consumer’s property, the point of delivery shall be
approximately one foot (1’) inside the consumer’s property line.
When the gas main is located in an easement or right-of-way adjoining a
dedicated street right-of-way:
If the customer is on the same side of the street as the main, the point of
delivery shall be one foot from the main.
If the customer is on the opposite side of the street as the main, and an
easement exists on the customer’s property, the point of delivery shall be
approximately four feet (4’) inside the consumer’s property line.
If no easement exists on the consumer’s property, the point of delivery
shall be within the street right-of-way, see Section 5.3.2, “Main in Street”.
When the gas main is located on an adjacent property and no easement or rightof-way exists on or adjacent to the consumer’s property line, the point of delivery
will be located approximately one foot (1’) from the main. The consumer shall
obtain a properly executed right-of-way agreement from the owners of the
property crossed.
5.3.5 BASEMENT EXTENDS TO CURB LINE
When the basement of the premises to be served extends to the curb line, a
Company representative will determine the location of the point of delivery.
December 2007
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5.3.6 FOREIGN GAS MAINS
When the service tap is to be located on other than Company mains or
transmission lines, the point of delivery shall be one foot (1') from the main.
5.3.7
FARM TAPS
When the service is located on a Company transmission line, the point of delivery
shall be at the outlet of the riser valve (where the Company piping ends and the
consumer piping begins).
When a residential service is on a high pressure distribution main requiring 2- or
3-stage regulation, the point of delivery shall be approximately one foot (1’) from
the gas main.
5.4
SIZING
5.4.1
GENERAL
In sizing the consumer’s service pipe, the entire service pipe (Company service
plus consumer service) shall be considered as a unit. Service will normally be
provided from distribution mains (low pressure, medium, and high pressure) and
from transmission mains on rare occasions. All new service installations shall be
no less than 1” CTS for low and medium pressure systems.
All services installed or replaced on systems operating below 60 psig and 2” and
less in size, shall be plastic. Steel service pipe shall be used on steel systems
operating at 60 psig and above. Services installed off of a high density plastic
main operating at pressures less than 100 psig will be high density plastic, sized
and installed by the Company. The Company should be contacted for design
information.
5.4.2 DISTRIBUTION PRESSURES
Low Pressure (less than 1 psig)
The service pipe shall be sized to deliver the required gas supply with not more
than ½" of water column pressure drop. Refer to Table 1 for sizing.
Medium Pressure (1 psig to 20 psig)
New service lines shall be sized based upon a pressure drop of ½ psig. The
minimum size for renewing an existing ¾" and 1" IP service is ½" CTS. Refer to
Tables 2 and 3 for sizing.
Medium Pressure (greater than 20 psig to 60 psig)
New service lines shall be sized such that the pressure drop does not exceed 1
psig. The minimum size for renewing an existing ¾” or 1” services is ½” CTS.
Refer to Table 4 for sizing.
December 2007
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High Pressure (greater than 60 psig)
High pressure service lines shall normally be 1” schedule 80 or 1¼” schedule 40
steel pipe. Consult the Company regarding sizing, material, and installation
requirements for high pressure piping. High pressure services off of high density
(PE 3408/4710) plastic main, operating at less than 100 psig may be ¾” high
density (PE 3408/4710) plastic with prior approval from gas engineering.
5.5
LOCATION OF SERVICE
5.5.1
GENERAL
On developments installed before September 1995, and new individual
services off of existing systems, the consumer’s service pipe shall be installed in
a continuous straight line with the Company service pipe to the outside riser. The
service location is determined by the meter location and location of the main from
which the service is to be run. New services will be connected to Company pipe
only by operator qualified individuals. Typical service installations are shown in
Figure 1.
On single family residential developments after September 1995, the property
owner will continue to install and own the service line from the curb valve to the
meter (at the house wall). The consumer service line installer must be operator
qualified and is responsible for the connection of the consumer line to the
Company line. This piping will be allowed to follow the most convenient path
between the two locations as long as the following conditions are met:
1. For front distribution, the meter shall be located at the front house wall no
more than 25 feet from the side house wall nearest the curb valve, or along the
side wall nearest the curb valve, but not behind any offsets (see Figure 2).
2. If rear distribution has been approved, the meter shall be located at the nearest
corner to the service tap on the back wall or the side wall no farther than 5 feet
from the corner (see Figure 2).
3. For gas meter location, see Section 9.3.2.
4. The service line shall be installed no nearer to a parallel wall than 5 feet (see
Figure 1 and 2).
5. Plastic piping shall be installed with the minimum bend radii shown in
Table 5.
6. There shall be a minimum separation between any electrical meter, air
conditioning unit, etc. and gas meter of 3 feet.
7. There should be a minimum separation of 5 feet from sources of extreme heat.
December 2007
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5.5.2 PIPE ALONG THE SIDE OF BUILDING
Where the point of entry or meter is located along the side of the building, the
consumer’s service pipe will be installed to a point opposite the outside riser at
least five feet out from the building line (see Figure 1, Example D and Figure 2,
Example C).
When the consumer’s service pipe extends more than five feet along the side of a
building wall, service shall be plastic or continuous welded steel pipe from the
point of delivery.
5.5.3 PIPE UNDER CONCRETE
The consumer’s service pipe shall not be laid under concrete or other hard surface
walks or driveways except where it may be necessary to cross under such walks
or driveways. If a walk or patio exceeds three feet in width or a driveway
extending from the foundation wall out exceeds three feet or the full width or
depth of the property, a venting sleeve shall be installed, at the consumer’s
expense, around the riser line adjacent to the foundation wall (see Section 5.6.5
and Figure 4). Pipe sections under concrete or hard pavement are to be one
continuous section of plastic pipe.
5.5.4 PIPE UNDER THE BUILDING
Where inside meter sets force the laying of a consumer’s service pipe
underground under a building or in an inaccessible or non-vented crawl space, the
service pipe shall be encased with gas tight standard steel pipe from a point at
least two feet outside the foundation entry and if a riser is involved, to a point on
the riser at least six inches above the floor. The casing shall be sealed at the ends
by welding or use of compression end seals and vented to the outside to a safe
location not less than two feet above the ground line. The vent shall be equipped
with a weatherproof vent cap or an inverted screen elbow (see Figures 13 and
15).
5.5.5 ENTRY TO BUILDING
Where practical, the consumer’s service piping shall enter the building above
grade. Steel piping entering through the outer masonry wall of the building either
above or below grade shall be encased in an approved steel or plastic sleeve.
The piping and sleeve shall be sealed at the foundation wall to prevent entry of
gas or water (see Figure 12). When the consumer’s steel service line must enter
the foundation below grade, a full joint of straight pipe (if the service is that long)
shall extend through the wall to a point approximately six inches inside the
foundation. This requires approval by Company personnel.
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5.5.6 PROHIBITED LOCATIONS
The consumer’s service pipe shall not be installed under any open grating or
outside stairway entrance, nor shall it be laid through a septic tank or leaching
bed.
5.6
RISERS
5.6.1
GENERAL
All risers shall be parallel to and approximately six inches from the building wall
(see Figures 3, 5 and 6). Meter risers shall be set so that the meter bar is level
and parallel to the building wall with the insulating union to the outlet side of the
setting, and installed so that the meter dial will face away from the building wall.
5.6.2 OUTSIDE METER SETS
On outside meter sets, the risers shall be of sufficient height to allow the meter to
be set with approximately six inches clearance between the bottom of the meter
and finished grade. See Figures 3, 4 and 5 for detail and specifications of the
anodeless service riser required for outside meter settings.
5.6.3 OUTSIDE RISER, INSIDE METER SET
Where the meter is to be located in the basement, the outside anodeless riser shall
be located approximately six inches from the outside face of the building wall.
Where the meter set is to be located on the ground floor level of a garage, utility
room or room approved for meter location, the anodeless riser shall be located
approximately six inches from the outside face of the building wall.
The meter bar should be located six feet from the floor where possible.
5.6.4 INSIDE RISER, INSIDE METER SET
Where a meter is installed inside the foundation, building or garage, the riser shall
allow sufficient height for the meter bar to be located six feet from the floor
where possible. The riser shall be approximately six inches from the wall.
All piping from the point where the service line enters the building to the meter
shall be kept to a minimum length and shall be exposed and accessible.
December 2007
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5.6.5 RISERS IN CONCRETE OR ASPHALT
Where a riser passes through a walk, patio or driveway, it shall pass through a
sleeve or other means of providing a venting space between the riser and the
walk, patio or drive. The space between the sleeve and riser shall be filled with
pea gravel (see Figure 4).
5.6.6
PROTECTION OF RISERS OR METER SETTINGS
At the discretion of the Company, protective barricades may be required where
necessary to protect the meter, regulator or piping from damage (see Figure 18).
December 2007
18
SECTION 6
SPECIFICATIONS FOR INSTALLATION OF CONSUMER SERVICE LINE WITH
PLASTIC PIPE
6.1
GENERAL
For services connected to distribution systems with low and medium pressures (60 psig
or less), sizes of 1" CTS, 1¼" IPS or 2" IPS medium density (PE 2406) plastic pipe shall
be used. ½" CTS medium density (PE 2406) plastic pipe may be used with prior
approval from the Company. For high pressure (less than 100 psig) services, ¾” IPS high
density (PE 3408/4710) plastic pipe may be used with prior approval from the Company.
Plastic pipe may not be used for services served from mains operating above 100 psig.
For pipe capacities see Tables 2, 3 and 4.
6.2
MATERIAL
Plastic service pipe shall be polyethylene, medium density PE 2406 or high density PE
3408/4710) as described in ASTM D 2513 Thermoplastic Gas Pressure Pipe, Tubing and
Fittings. The Company shall be consulted for approved brands of plastic pipe (see
Section 13.1 for list of approved manufactures). The minimum Standard Dimensional
Ratio (SDR) and wall thickness for plastic pipe are in Table 6.
6.3
GENERAL CONSUMER SERVICE REQUIREMENTS
1. An approved flexible steel casing or rigid non-corrosive steel encased plastic service
line riser (anodeless type) shall be used with plastic service lines 2" in size or smaller.
A wall mounting bracket securely fastened to the riser or meter bar and building wall
shall be used to support the riser. Plastic pipe shall not be installed aboveground,
except in pre-approved service risers.
The riser shall be installed in such a position that the transition fitting on the top of
the riser is a minimum of 6 inches above the finished grade (see Figure 3). The
completed meter set assembly will allow a minimum of 6 inch clearance between the
bottom of the meter and the finished grade (see Figures 5 and 6).
When adequate support is not available from a riser to a building, a metal support
stake of five feet minimum shall be driven into the ground and securely fastened to
the riser or meter bar. The Company may approve other methods which adequately
supports the riser, keeping the meter setting level and unobstructed.
2. On direct buried plastic service, a number12 or larger plastic coated solid copper wire
shall be buried along the length of the plastic service for locating purposes. The wire
shall not be wrapped around the plastic pipe and contact with the pipe must be
minimized. The tracer wire shall be one continuous wire from the curb box to the
meter riser and be connected above grade to the riser with a mechanical clamp.
3. Plastic piping must be laid and continuously supported on undisturbed or wellcompacted soil. To provide for possible thermal contraction, the trench should be
wide enough to permit a minimum of one (1) foot of slack for each fifty (50) feet of
December 2007
19
pipe. When circumstances prohibit the above, the service shall be back-filled or
cooled a minimum of one (1) hour before the last connection is made.
Material used to surround and protect the pipe should be stable soil with a particle
size of ½" or less. If ledge rock, hardpan or boulders are encountered, the trench
bottom should be undercut by at least 4 inches and refilled with a good bearing small
particle size soil, as well as covering the pipe with four to six inches of debris free
material.
The consumer’s service pipe may be installed in a separate trench or in a common
trench with other utilities, such as electric and telephone. Gas services shall not be
installed with sewers, downspout drains or draining tile. If multiple utilities are
installed at the same level, the gas piping should be located at least 12 inches to the
right of other utilities installed in the same ditch. The right side is determined by
standing on the service valve near the main and facing the establishment. The trench
shall be graded uniformly, sloped toward the main when practical, and provide a solid
and continuous foundation for the consumer’s service pipe. The trench should also be
of sufficient depth to provide a minimum of 18 inches of cover. Where crossings are
necessary, there should be a clearance of at least twelve inches, and the gas service
must be on top of the other utilities.
If flooding of the trench occurs for any reason, care must be exercised to see that the
piping does not float from its position on the trench bottom.
Compacting of back-fill using heavy equipment is not recommended. Use of heavy
equipment could affect proper operation of the service pipe.
Plastic pipe shall not be pushed or pulled over sharp projections, dropped or have
other objects dropped on it. In certain cases it may be desirable to use trenchless
construction to install plastic pipe.
If trenchless technology is used, including boring, planting or plowing, the plastic
pipe must be cased in steel pipe. This action is required to avoid transecting and
damaging underground sewer facilities.
The plastic carrier pipe must be protected from damage where it enters and exits the
steel casing.
Due to the possibility that gas flow in an encased plastic service can become
restricted or completely squeezed off if water enters and freezes in the annular space
between the carrier and the casing, Table 16 should be used when sizing the steel
casing.
4. Plastic pipe shall not pass through a building wall below or above ground unless
properly sleeved, nor shall it be exposed inside or outside of a building (see Figures
14 and 15). In addition, plastic piping shall not pass through or under any building
except inside a properly buried, vented casing where approved (see Figures 13 and
16). If a casing vent can not be properly installed, the meter must be moved to an
approved location.
December 2007
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5. The consumer’s service may be tested against a compression type end coupling or
stop with armored type gaskets. When the test is completed, the coupling may be
removed. The end of the plastic pipe shall be sealed watertight. Temporary seals
such as plastic caps, rubber plugs, etc., may be used to close the end of the piping. If
the service ditch is to be back-filled before the Company ties-in the service, the end of
the service shall be identified often with a stake marked “Gas” or a piece of the gas
pipe used as a marker. If the Company curb valve is installed, the service must be
connected to it.
6. Pressure tests shall be conducted so that the temperature of the thermoplastic pipe
does not exceed 100° F or go below 10° F at any time. Inspection and testing of
plastic piping shall be done in accordance with Section 11.2.
7. Care shall be exercised to avoid rough handling of the plastic pipe. Any kinks or
buckles which might occur in the plastic pipe during installation, are not allowed in
the consumer’s service piping. Gouges, grooves, kinks or buckles shall be removed
by cutting out the damaged portion as a cylinder and replacing it. The plastic material
shall be protected from fire and excessive heat. Plastic pipe shall be adequately
supported and protected from long term exposure to sunlight.
8. Plastic pipe may be cut by using a hacksaw, knife, carpenter’s saw or tubing cutter.
9. Under no circumstances will plastic pipe be threaded. New plastic pipe shall be
installed as one continuous length from curb valve to riser connection unless working
space restrictions do not allow for proper bend radius. In situations where it may
become necessary to connect new plastic pipe to existing plastic or steel, such as for
repairs or partial replacements, approved couplings can be used. A metallic stiffener,
as specified by the manufacturer of the coupling, shall be used at each compression
connection. The stiffener shall be sized to a close tolerance of the inside diameter of
the plastic pipe. Steel couplings shall be primed and wrapped with an approved cold
applied tape. The use of couplings shall be kept to a minimum. The installation of
couplings for repair or partial replacement is to be done with the approval of an
authorized Company inspector.
10.
One continuous length of plastic pipe is necessary for pipe under concrete and paved
surfaces and parallel to building walls. Also, service pipe should not parallel a
building wall closer than 5 feet.
11.
Changes in direction of plastic piping may be made with bends or approved fittings
under the following limitations:
1" CTS, 1¼" and 2" plastic pipe shall not be deflected to a radius less than the
specification in Table 5. The bends shall be free of buckles, cracks or other
evidence of damage. Changes in direction that cannot be made in accordance
with above shall be made with approved fittings.
The consumer’s service pipe trench shall not be back-filled until after the pipe has
been inspected by the Company. The trench shall be back-filled within 24 hours
after approval of inspection. An exception to this 24-hour rule will be allowed
when the back-fill material is frozen. The ditch and back-fill material shall be
December 2007
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free of rocks, stones, cinders, slag, concrete blocks, pieces of wood or other
materials which can cause damage to the pipe or pipe coating.
6.4
FITTINGS FOR PLASTIC PIPE
Approved compression, stab-on, electrofusion or fusion type fittings are to be the only
type of fittings used on consumer service plastic piping. Fittings shall be installed per the
specific manufacturer’s installation instructions.
6.5
QUALIFICATION OF PERSONS MAKING JOINTS
Persons making joints on plastic must be qualified according to Section 4.6 “Notice to
Gas Service Line Installers”.
6.6
GENERAL INFORMATION FOR PLASTIC INSERT IN STEEL SERVICE LINE
The following steps are required for renewing a consumer’s steel gas service by inserting
with plastic piping. It is very important that the proper material be used and that the
installation be done properly (see Figures 10, 11 and 14).
The following items must be considered before using plastic insertion:
1) Connected gas load (present and future).
2) Length of consumer’s service line.
3) Distribution system operating pressure (see Tables 2, 3 and 4 for capacities).
4) Size and location of existing steel services.
5) Straightness of existing service (swing joints, offsets, etc.). The Company shall be
consulted for the required fittings on inserted services over 100 feet in length.
6) Length of company service.
6.6.1 SPECIFICATIONS
For
approved
plastic
piping
see
13.1
“Plastic
Pipe
and
Tubing”.
Table 7 provides plastic insert sizes for various size steel services.
Plastic-to-steel adapter fittings that have metallic rings or gasket armoring which
cuts into the plastic shall not be used. Gaskets which consist of a closely wound
wire coil or small beading molded into the tip of the gasket shall be used.
Compression type fittings will be installed using the manufacturer’s approved
procedures.
December 2007
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6.6.2 INSERTION INSTALLATION REQUIREMENTS
The old steel service shall be reamed and internally cleaned as needed, to prevent
damage to piping during or after insertion. The leading end of the plastic shall be
closed before insertion.
Only approved adapter fittings, compression, stab-on and fusion fittings, and
risers will be used. Care shall be taken to prevent the plastic piping from bearing
on the end of the casing. Plastic piping shall be adequately protected against
shearing from external loading or settling of back-fill by using well compacted
support or bridging.
In cases where the meter set assembly or riser is located outside of the building
being served, the riser shall be of the approved anodeless type, including the
proper mounting or support bracket.
If the meter is in the basement, the inserted plastic line should terminate a
maximum of six inches inside the basement wall with an approved service head
adapter (see Figure 14). Exposure of plastic within the building or outside above
grade is prohibited. In all cases, tubular metallic stiffeners should be of the type
as specified by the manufacturer of the fitting being used. Any plastic piping that
is deeply scored or kinked shall not be used.
Any excavations made during the renewal installation should not be back-filled
until after visually inspected by a Company representative. Service lines shall be
inspected and tested in accordance with Section 11 of this book.
A method of locating inserted plastic pipe must be provided. This can be
accomplished by inserting a wire through the casing or bridging all gaps on the
casing. The locating wire shall:
1. Be brought up and wrapped around the outside of the curb box and connected
to the riser. At the top of the box, wrap the wire around and above the
locating magnet so that it is caught when the lid is tightened down. This
allows flexibility if the box must ever be raised or lowered and does not
interfere with the curb stop operation. This wire shall also be attached to any
other Company locating wire present using a split bolt connector.
2. Bridge any gaps in the old casing pipe to ensure electrical continuity. This
can be accomplished by bonding a number12 tracer wire to the pipe ends.
3. Be connected above ground to anodeless risers with mechanical ground
clamps. The connection above ground should be positioned so that it will not
be easily damaged or disconnected.
4. A locating (tracer) wire is not required when the meter is located inside and
the old service will not be excavated and severed beyond the initial curb valve
excavation. If the old service is excavated and severed downstream of the
curb valve, a locating wire shall be installed and fastened to the old service
pipe to provide electrical continuity from the curb box to the meter riser.
December 2007
23
SECTION 7
SPECIFICATION FOR INSTALLATION OF CONSUMER SERVICE LINE WITH
STEEL PIPE
7.1
GENERAL
Steel pipe shall be used on steel systems operating above 60 psig and above. This section
covers the installation of customer service piping, when applicable.
All services installed or replaced on systems operating at or below 60 psig and 2” and
less in size, shall be plastic. Services installed off of a high density plastic main
operating at less that 100 psig will be high density plastic, sized and installed by the
Company.
7.2
MATERIAL
7.2.1 PIPE
Coated steel pipe complying with the American National Standard for Welded
and Seamless Wrought-Steel Pipe, ANSI 36.10 shall be used for service lines.
Steel service pipe shall not be bent. Galvanized pipe or galvanized fittings are not
permitted. See Section 12 for pipe coatings.
7.2.2 SCREW FITTINGS
Screwed couplings are permitted but only above ground level. Screw fittings are
to be malleable iron, standard weight with the exception of meter bars. Bushings,
couplings, all-thread nipples, saddles, cast iron fittings, or solder type fittings or
connections shall not be permitted. Unions will not be permitted except where
specified in meter or regulator settings.
7.2.3 COMPRESSION FITTINGS
The following mechanical and electric properties listed are minimum
requirements.
1.
Mechanical Properties
MATERIALS - the materials used in the body of the fitting and end nuts
shall be metallurgically and chemically similar to pipe steel or shall be
treated by a process such as Parkerizing (insulating coating) or equivalent,
to eliminate galvanic corrosion effects.
BODY - the body of the fitting shall have a wall thickness equal to or
greater than the pipe with extra thickness under the threaded areas. The
minimum body length shall be four inches.
December 2007
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NUT - the nut shall be of heavy construction and threaded deeply enough
to prevent danger of stripping. Threads shall be designed for easy starting.
The nut shall be of sufficient depth to overlap the body, leaving no
exposed threads when assembled.
GASKET - the gasket shall meet the physical requirements of ASTM
D735 Grade SA-710B. Provision should be made to prevent the
possibility of the gasket catching in the threads of the end nut and causing
a false sense of tightening.
DEFLECTION - the coupling, when assembled on standard weight pipe,
shall not allow a pipe deflection of more than seven degrees.
IDENTIFICATION - the coupling shall be permanently marked as to the
manufacturer’s name, model number and type of gasket. Such markings
shall be easily identified when the coupling is in the normally installed
position.
2.
Electrical Properties
All couplings should have gaskets, which allow electrical contact between
the coupling body and the pipe unless others are specifically authorized.
The gasket shall consist of a closely wound wire coil molded in the gasket
tip or an equivalent device that will make a permanent low resistance
electrical contact between the coupling body and the pipe. Any such
device shall be so located within the body of the coupling that it will not
be affected by soil moisture.
COUPLING RESISTANCE - the resistance of the properly assembled
coupling and pipe shall be equal to or less than the resistance of ten feet of
the pipe being coupled.
The Company should be consulted for specifications on couplings on
services larger than two inches.
7.2.4 METER STOPS AND VALVES
For gas piping designed to operate at 60 psig or less, meter valves shall be
Company approved of the locking type, black iron body, brass tamperproof core
with screw ends with a minimum working pressure rating of 60 psig. The
tamperproof feature shall be designed and constructed to minimize the possibility
of the removal of the core of the stop accidentally or willfully with ordinary
household tools. Cast Iron valves shall only be installed aboveground.
Valves installed below ground shall be steel. Services designed to operate at a
pressure in excess of 60 psig or two inches in diameter and larger, shall be
equipped with a meter valve of the ball or lubricated plug type. Each stop or
valve shall be identified with manufacturer’s name. Ref.: ANSI B16.5 and ANSI
B31.1.
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7.2.5 LUBRICATED PLUG VALVES
Lubricated plug valves shall be of the tapered core type with a manufacturer’s
pressure rating of not less than 125 psig working pressure or a higher rated valve
that has been approved by the Company.
7.2.6 BALL VALVES
Ball valves shall have body with a manufacturer’s pressure rating of not less than
175 psig working pressure or a high rated valve that has been approved by the
Company.
7.2.7 GATE VALVES
Gate valves shall be of the single wedge, non-rising stem type with a
manufacturer’s pressure rating of not less than 125 psig.
7.2.8 APPROVAL OF MATERIAL
When uncertain, the Company should be consulted for a list of approved and
proper materials to use on consumer’s service pipe. Requests for new material
review and consideration for use should be submitted to the Company.
7.3
INSTALLATION
7.3.1
GENERAL
All consumers’ steel service pipe shall be coated and cathodically protected
according to Company specifications for protective coating and cathodic
protection listed in Section 12. Where the consumer’s service pipe is laid under
corrosive soil, the Company shall be contacted for special protective
recommendations. Where the gas main has been tapped and a Company service
made available before the consumer’s service pipe is installed, an operator
qualified individual shall make the connection to the Company service stop after
inspection and testing. Each length of steel pipe shall be examined before
installation and any dirt or obstruction shall be removed. Any burrs left by the
cutting tool shall be reamed off. Pipe and fittings shall be examined for condition
of threads. Pipe dope or thread lubricant shall be used sparingly and on male
threads only. Defective pipe or fittings shall be replaced. Repairs are prohibited.
Pipe, fittings and valves removed from any existing installation shall not be again
used until they have been thoroughly cleaned, inspected and determined to be
equal to new material.
7.3.2 TRENCH
The consumer’s service pipe may be installed in a separate trench or in a common
trench with other utilities such as electric and telephone. Gas services shall not be
installed with sewers, water lines, downspout drains or other draining tile. If all
utilities are installed at the same level, the gas piping should be located with at
least 12 inches minimum separation. The trench shall be graded uniformly,
December 2007
26
sloped toward the main, when practical, and provide a solid, continuous
foundation for the consumer’s service pipe. The trench shall also be of sufficient
depth to provide a minimum of 18 inches of cover. Where crossings are
necessary there should be a clearance of at least twelve inches and the gas service
must be on top of the other utilities.
7.3.3
JOINING STEEL PIPE
Where it is necessary to use more than one length of pipe in the consumer’s
service pipe, the lengths must be joined by an approved conducting, compression
type coupling or welded joint. The first pipe joint shall be a full pipe length
(approximately 21 feet, if the service is that long) from the outside riser.
The consumer’s service pipe shall be made to match the Company service pipe
size or existing curb valve with a welded or compression fitting approximately
two feet from the point of delivery. Standard sizes for tie-in to Company services
are 1¼ inches and 2 inches; check with the Company for other sizes.
High pressure steel piping (above 60 psig) shall be joined by welding. See
Section 4.6.3 “Welder Qualification”.
Screw fittings are not permitted underground in the consumer’s service pipe.
Unions of the grounded joint type may be used above ground in the meter or
regulator settings.
Where offsets are required, welding ells are recommended.
7.3.4 WELDING LIMITATIONS
Welders performing work on steel piping systems shall be properly qualified in
accordance with Section 4.6.3 “Welder Qualification”. Pipe sizes of 2 inch
diameter and larger can be utilized for production weld tests. Butt welds will be
the only joint design used for these weld test.
A welder may only weld on facilities using the specific procedures that they have
been qualified to perform. Each qualified welder will have access to the Vectren
Energy Delivery – Welding Procedure Manual.
Welders should be qualified well in advance of any welding activity.
7.3.5
BACKFILLING
The consumer’s service pipe trench shall not be back-filled until after the pipe has
been inspected by the Company. The trench shall be back-filled within 24 hours
after approval of inspection. An exception to this 24-hour rule will be allowed
when the back-fill material is frozen. The ditch and back-fill material shall be
free of rocks, stones, cinders, slag, concrete blocks, pieces of wood or other
materials which can cause damage to the pipe or pipe coating.
December 2007
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SECTION 8
SERVICE PRESSURE REGULATORS
8.1
GENERAL
Where the consumer’s service pipe is subject to pressure in excess of one-half psig (14”
water column), service pressure regulation is required immediately ahead of the meter as
a part of the meter setting. It is important that the appropriate regulator be used for the
given operating pressure and flow characteristics. This regulator will reduce the
distribution line pressure to that recommended for household appliances. Additional field
regulators may be required for services off of high pressure mains and transmission
pipelines.
8.2
OWNERSHIP AND RESPONSIBILITY
The service pressure regulators will be supplied, owned and maintained by the Company.
Such regulators shall be installed by the consumer, at their expense, in a manner and at a
location on the consumer’s premises satisfactory to the Company. The service regulator
supplied by the Company for a given address shall be installed at that address.
8.3
LOCATION
8.3.1
GENERAL
Outside settings are preferred for service pressure regulators. If the Company
approves an inside setting, the regulator must be located as near as practicable to
the point of service line entrance and the relief valve vented outside.
8.3.2 PROHIBITED LOCATIONS
Locations that are prohibited for installations of meters are also prohibited for
service pressure regulators (see Section 9.3.2). In addition, service pressure
regulators shall not be installed inside public buildings such as schools, churches,
auditoriums, etc. Provisions shall be made by the consumer for service pressure
regulators to be located outside, properly protected and at a location designated by
a Company representative.
8.3.3
MEDIUM PRESSURE (1 psig to 20 psig)
The service pressure regulator should be installed as a part of the meter setting as
described in Section 9.3.3.
If the regulator has been approved for installation inside of a building, refer to
Section 8.4 for venting requirements.
December 2007
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8.3.4
MEDIUM PRESSURE (greater than 20 to 60 psig)
The service pressure regulator shall be installed as a part of the meter setting as
described in Section 9.3.4.
8.3.5
HIGH PRESSURE (greater than 60 psig)
The service pressure regulator shall be installed as a part of the meter setting as
described in Section 9.3.5.
8.3.6 TAPS ON TRANSMISSION LINES
The service pressure regulator shall be installed as a part of the meter setting as
described in Section 9.3.6.
8.3.7 COMMERCIAL AND INDUSTRIAL SETTINGS
The service pressure regulator shall be installed as a part of the meter setting as
described in Section 9.3.7.
8.4
VENTING
8.4.1 SERVICE PRESSURE REGULATORS
All service pressure regulators installed inside a building shall be installed with a
suitable, rigid steel or approved flexible vent terminating to the outside with an
insect guard and water proof fitting. The Company shall approve installations
that use flexible vent that is over 10 feet in length and has more than two
connections.
Vent lines shall be located so that vented gas will not come back into the house
through windows, doors, air intakes or other openings and be at least three feet
from sources of ignition (i.e., electric meter settings, air conditioning units, etc.).
They should not be located where they will be subject to damage or flooding.
The vent line shall be of adequate size to meet the fail open regulator capacity
requirements and shall not be less than the same size as the vent opening on the
regulator. As a rule of thumb, increase the entire vent line size one pipe diameter
(nominal) for every 20 equivalent feet of length. A union is required on the vent
line and should be located within six inches of the regulator.
December 2007
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SECTION 9
METERS
9.1
GENERAL
The Company will approve all meter site locations. The consumer shall make provisions
for the location of metering equipment on the consumer’s premises as specified by the
Company.
Only operator qualified individuals shall be allowed to connect or disconnect any meter
or metering equipment or turn on or shut off gas to any premises.
9.2
OWNERSHIP AND RESPONSIBILITY
The metering equipment shall be installed and maintained by the Company and shall
remain the property of the Company.
9.3
LOCATION
9.3.1
GENERAL
Outside settings in a readily accessible location are preferred for meters. When
more than one meter is set on a premise, they should be installed at one location
whenever practical. An inside setting may be used only if approved by the
Company.
9.3.2 PROHIBITED LOCATIONS
Gas meters should not be placed where they will be subjected to damage, such as
adjacent to a driveway, under a fire escape, in public passages, halls or where they
will be subject to excessive corrosion, vibration or extreme heat. In addition, gas
meters shall not be installed in small, unventilated or confined spaces or in
sleeping quarters, bathrooms or closets. Gas meters shall be located at least three
feet from sources of ignition, air intakes, windows or doors capable of being
opened. Meters shall not be in contact with the soil.
9.3.3
LOW PRESSURE (less than 1 psig) AND MEDIUM PRESSURE (greater
than 1 psig to 20 psig)
When the tap is on a low or medium (greater than 1 psig to 20 psig) pressure
distribution main, the meter should be located outside the building in an
accessible location where it will be protected from damage, with the following
exceptions:
1. When the consumer’s service is over 150 feet in length the meter should
be set at the property line nearest the gas main. Exceptions are subject to
approval of the Company with consideration regarding alignment and year
around visibility (line of sight) of the meter setting in relation to the point
of delivery.
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2. When building design or obstruction prohibits, the meter may be located
away from the building at a point nearer the gas main. At the Company’s
discretion, the meter may be located adjacent to the gas main or to the
property line nearest the gas main.
3. With Company approval, when no acceptable outside location is available,
the meter may be set inside the building at the building wall near the point
of service entry.
The meter shall be readily accessible for examination, reading, and replacement
and shall be located where it will be protected from damage (see Figures 5 and 6).
9.3.4
MEDIUM PRESSURE (greater than 20 to 60 psig)
When the tap is on a medium pressure line the meter shall be located outside the
building in an accessible location where it will be protected from damage (see
Figure 6, also see Paragraphs 1 and 2 of 9.3.3 above).
9.3.5
HIGH PRESSURE (greater than 60 psig)
When the tap is on a high pressure line the meter shall be located adjacent to the
gas main or to the property line nearest the gas main immediately following the
service regulators in a readily accessible location and where it will be protected
from damage (see Figure 7).
9.3.6 TAPS ON TRANSMISSION LINES
When service is provided from a transmission line the meter shall be located one
foot from the transmission line. Where required, the consumer shall provide
suitable housing for the meter, as protection for this equipment from the weather
and acts of third parties (see Figures 7 and 8).
9.3.7 COMMERCIAL AND INDUSTRIAL SETTINGS
Commercial and industrial settings will be designed/installed per Company
specifications. Consult the Company for special rules and regulations. All
multiple meter manifold settings require a survey by the Company.
9.4
INSTALLATION
9.4.1
GENERAL
The Company shall supply, install and maintain the gas meter. The consumer is
required to furnish an insulating type meter bar on all new and rebuilt gas meter
installations where a domestic size meter is used. Typical meter setting
installations are illustrated in Figures 5, 6, 7, 8 and 9. Non supported meter
settings shall use rigid risers.
December 2007
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9.4.2 SUPPORT
The meter setting shall be constructed so that the meter will be plumb and level
and securely supported with no strain exerted on it. Wall brackets are specified
for the service riser in Figures 3, 4, 5 and 6. Metal straps and hangers used to
support on inlet piping shall be insulated from the piping.
When the meter is located at the property line, adequate support shall be installed
to keep the meter setting level and take strain off the riser. Rock shields or
protective sleeves are recommended on service insertions (see Figures 10 and
14).
9.4.3 INSULATION
All gas meters shall be electrically insulated either at the outlet side of the meter
or at the flanged valve in the service riser.
9.4.4 METER HEIGHT
Meters located outside shall have the bottom of the meter a minimum of six
inches above finished grade, and must be maintained at that minimum. The
tamper proof valve must be easily accessible and in a position that allows full
operation.
The height for a meter bar located inside shall be approximately six feet from the
floor, where possible.
9.4.5 MULTIPLE INSTALLATIONS
On multiple meter installations, each meter spread shall be plainly and properly
identified by the installing agent with a permanent, weatherproof tag designating
the apartment or the part of the building it supplies.
9.4.6 METER VALVES
A Company approved meter valve which is tamperproof, and capable of being
locked, will be installed upstream of the meter if there is no regulator on the meter
setting, or upstream of the regulator if there is one (see Section 7.2.4). An
approved, tamperproof locking type master valve is required on the riser of the
manifold setting, in addition to the meter valves controlling the supply of gas to
each meter.
9.4.7 PROTECTIVE DEVICES
Where deemed necessary by the Company, the consumer will be required to
provide suitable protection for the meter setting. The type of protection to be
used shall be as specified by the Company.
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9.4.8 METER COVERS AND SHELTERS
Meter covers or shelters, while not required, should be constructed as follows:
1. A clear, adequate sized opening at meter dial level should be provided for
reading the meter without removing the cover.
2. Covers should be of lightweight, sturdy, weatherproof, non-metallic
construction and should be properly ventilated.
3. Covers should be adequate in size to cover the meter, manifold, and regulator.
4. Covers should be so constructed as to be readily removable by one person.
5. Covers that are too large to be readily removable by one person should be
constructed with full opening doors and should be of such size as specified by
the Company.
6. The cover should not break the electrical insulation across the meter setting,
(see Section 9.4.3).
December 2007
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SECTION 10
CONSUMER’S HOUSE LINES
10.1
GENERAL
These requirements and specifications for the installation of consumer house lines have
been adopted by the Company in the interest of safe and adequate service. For further
information refer to the International Fuel Gas Code. In applying these requirements and
specifications, in the event of conflict between laws, regulations, ordinance or codes and
the provision of this book, the former shall prevail. This also holds true for state or
federal rules and regulations.
10.2
OWNERSHIP AND RESPONSIBILITY
The consumer, at their own expense, shall have house lines installed by qualified
personnel. The consumer is responsible for the sizing, installation and maintenance of
the house lines and the consumer assumes all risk resulting from defects therein.
10.3
SIZING
10.3.1 NEW PIPING
Gas piping shall be designed in accordance with accepted engineering practice to
be of such size and so installed as to provide a supply of gas to meet the
maximum expected demand with pressure loss not to exceed 0.3 inch water
column. Table 8 shows typical sizes of consumer house lines. Pipe sizes for
larger installations such as large, single dwellings, double houses, apartment
houses, commercial buildings, churches and schools should be sized using
Table 9.
10.3.2 EXTENSIONS
In remodeling or extending house lines, connections shall be made so that sizes
can be maintained in accordance with the pressure drop and capacity provisions of
this section. Where sizes cannot be maintained and meet these provisions from
existing house lines, extensions shall be supplied by a separate pipeline from the
meter.
10.3.3 MINIMUM
No pipe smaller than standard ½” iron pipe size shall be used in consumer's house
lines for pipe lengths greater than 15 feet, unless it is part of a corrugated stainless
steel tubing (CSST) system.
Gas piping to an appliance shall not be less in size than the manifold size or
connection at the appliance. The drop line to the equipment may be the same as
the connection at the appliance.
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10.4
MATERIAL
10.4.1 GENERAL
When defective pipe or fittings are found in a gas piping system, the defective
pipe or fittings shall be replaced.
Pipe, fittings, valves, etc, removed from an existing installation shall not be again
used until they have been thoroughly cleaned, inspected and determined to be
equivalent to new material.
Each length of pipe shall be examined before connecting, dirt or obstructions
removed. Burrs left by the cutting tool shall be removed. Pipe and fittings shall
be examined for condition of threads. Pipe dope or thread lubricant shall be used
sparingly and on male threads only.
10.4.2 PIPE
Cast iron pipe shall not be used.
Gas piping in buildings or above ground shall be standard weight steel pipe
complying with the American Standard for Wrought-Steel and Wrought-Iron Pipe
ANSI No. 36.10. No bending of standard house piping is allowed.
Corrugated stainless steel tubing (CSST) may be used inside buildings if the
installation is in accordance with Section 10.8.
Plastic gas pipe may be used for underground house lines in accordance with
Section 10.5.1.
10.4.3 FITTINGS
All screw fittings (except stops and valves) shall be standard weight malleable
iron. Bushings, right and left couplings, all-thread nipples, saddles, cast iron or
solder type fittings or connections shall not be permitted. When unions are
specifically allowed in this section, they shall be of the grounded joint type and
center punched to prevent loosening. Screw type fittings are not permitted below
grade.
10.4.4 VALVES
House line valves should be hard seat or ball type, and either the lever or flathead
type. Lever type valves shall only be used inside. Flathead type valves should be
used outside and shall have an iron body and brass core.
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10.5
INSTALLATION
10.5.1 GENERAL
Gas piping should be sloped to prevent traps. Where traps are unavoidable due to
building components a sediment trap is required with a dirt leg installed on the
bottom. A "dirt leg" is a tee with the bottom outlet equipped with a capped
nipple. An additional dirt leg shall be installed at the base of an appliance drop to
catch dirt or other foreign materials. The dirt leg should be of the same size as the
pipe to which it is attached.
No device shall be placed inside the gas pipe or fittings that will reduce the
capacity of the pipeline or otherwise obstruct the free flow of gas.
Consumer house lines entering the building through a masonry wall or below
ground level shall be encased in a steel or plastic sleeve (See Figures 12 and 13).
Where consumer house lines are buried, the requirements and specifications
covering consumer service pipes shall apply, unless a specific exception is stated
in this section of the manual. Welding procedures and welders performing work
on consumers’ house piping systems shall be properly qualified in accordance
with Section 4.6.3 “Welder Qualification.” Buried steel house lines shall be
insulated either inside the basement wall, if entry to the structure is below grade,
or outside the building wall and above grade when the meter setting is located
remote from the structure. See Section 12 for cathodic protection for steel piping.
Except where specifically excluded by local ordinance, rules or regulations,
plastic pipe may be used for underground house lines provided that the following
requirements are met:
1. Recommended minimum size for plastic house line from the meter to the
house wall is 1¼" pipe for low pressure application.
2. Plastic pipe will not be allowed to pass through a building wall below or
above ground unless properly sleeved, nor shall it be exposed inside or outside
of a building.
3. Plastic piping shall not pass through or under a building, except inside a
properly buried vented casing (see Figures 13, 15 and 16).
4. Approved anodeless risers are recommended for buried house lines.
5. Where coated steel risers are used, a one pound magnesium anode with a #12
plastic covered wire will be attached by the thermit weld method to the steel
riser on the downstream side of the meter.
6. A one pound magnesium anode shall be attached by the thermit weld method
to the steel riser at the building wall. A dielectric union shall be used to
separate the riser from the interior piping unless an anodeless riser is used.
December 2007
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7. Testing and handling of the house line will be in accordance with Sections 6.3
and 11.2.
8. A #12 or larger plastic coated solid copper tracer wire shall be buried along
the length of the plastic from the meter to the building wall. Contact with the
pipe must be minimized.
9. Plastic insert tubing may be used to reline the consumer's present underground
house line if load calculations warrant its use.
10.5.2 PROHIBITED LOCATIONS
Except as otherwise provided in this section, gas piping shall not be run inside or
through a circulating air duct, clothes chute, chimney or gas vent, ventilating duct,
dumb waiter or elevator shaft.
Gas piping may be installed in accessible above-ceiling spaces, whether or not
such spaces are used as a plenum. Valves shall not be located in such spaces.
10.5.3 SUPPORTING PIPE
Gas piping shall be supported to maintain proper grade with pipe hooks, metal
pipe straps, bands or hangers suitable for the size of piping and of adequate
strength and quality and located at proper intervals so the piping cannot be moved
accidentally from the installed position. The building structure shall not be
weakened by the installation of gas piping. Gas piping shall not be supported by
other piping. Spacing of supports in gas piping installations shall not be greater
than the spacing shown in Table 10.
10.5.4 OUTLETS
All piping outlets shall be installed and projected far enough from ceilings, walls,
and floors to permit the use of a pipe wrench of suitable size without straining or
bending the pipe. The unthreaded portion of the gas piping shall extend at least
one inch through finished ceilings and walls and two inches through finished
floors. The outlet fitting or piping shall not be placed behind doors.
Each outlet, including a valve outlet, shall be securely closed gas-tight with an
approved threaded plug or cap immediately after installation and shall be left
closed until an appliance is connected. Likewise, when an appliance is removed
from an outlet and the outlet is not to be used again immediately, it shall be
securely closed, gas-tight with a plug or cap.
10.5.5 CONCEALED PIPE AND FITTINGS
When installing house piping which will be concealed (in hollow partitions); the
number of fittings should be kept to a minimum. Unions, bushing, compression
couplings, and swing joints made of combinations of fittings should not be used.
When necessary to use fittings in gas pipe which has been installed in a hollow
partition, the pipe may be connected by use of a ground joint union with the nut
December 2007
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"center-punched" to prevent loosening by vibration. Allowance should be made
for expansion and contraction of concealed piping.
When gas piping within the perimeter of a building is to be concealed
underground, or within concrete or other solid construction, the piping shall be
properly cased or channeled. The entire installation shall be such that the gas
piping can be readily replaced with minimum damage to the building.
1. Casing - See Figure 16.
2. Channel - Channel shall be suitably covered to permit access to the piping,
and to provide protection to the pipe from moisture and corrosive substances
(See Figure 17).
10.5.6 PIPING BETWEEN BUILDINGS
1. Gas piping may be extended from one building to another building located on
the same property when two or more buildings are under the same ownership,
use or occupancy.
2. When consumer house lines are buried, the requirements and specifications
covering consumer's service pipes shall apply, unless a specific exception is
stated in this section of the manual. Welding procedures and welders
performing work on consumers’ steel house piping systems shall be properly
qualified in accordance with Section 4.6.3 “Welder Qualification”. When the
buried house line is plastic, a #12 or larger plastic coated solid copper wire
shall be installed along the plastic pipe for locating purposes. For industrial or
large commercial establishments, or wherever it is not practicable to go
underground, alternate methods may be used as permitted by code
requirements.
3. The size of such underground piping shall be determined in accordance with
accepted engineering practice and shall be adequate to meet the maximum
anticipated future load. Connection shall be made to the piping in the original
building at a point of adequate supply. The connection shall be made by the
use of appropriate fittings.
4. Such underground metallic piping shall be protected against corrosion by an
approved protective coating applied in accordance with the manufacturer's
specifications and shall be cathodically protected (see Section 12). This
piping shall also be insulated from the inside piping with insulating unions
placed either inside or outside near the point where the pipe enters each
building.
10.6
HOUSE LINE SHUT-OFF VALVES
10.6.1 GENERAL
Each meter setting shall have a stop incorporated to provide a master shut-off of
all house lines served. If the meter is located over 150 feet from the point of entry
December 2007
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to the building, an approved flathead type valve shall be installed at the building
wall.
10.6.2 MULTIPLE HOUSE LINES
In multiple tenant buildings supplied through a single meter or where meters are
not readily accessible from the appliance location, an individual shut-off valve for
each apartment or for each house line shall be provided at a convenient point of
general accessibility. It is recommended that each valve be plainly marked with a
permanent tag by the installing agency so that the gas piping systems supplied
through them can be readily identified.
10.6.3 GAS APPLIANCE
A shut-off valve shall be installed ahead of every gas appliance, located such that
the appliance can be readily shut off and serviced. Each shut-off valve shall be a
part of the rigid piping system and shall be installed ahead of all controls and the
union, or approved flexible connector, between the gas branch and the appliance.
If the shut off valve at the gas appliance is inaccessible for maintenance or
replacement, such as in the case of a fireplace valve, an upstream shut off valve
shall be installed in an accessible location, in the piping supplying gas to only that
appliance. A permanent tag shall be installed at the valve indicating the appliance
it supplies.
In accordance with the International Fuel Gas Code, the shutoff valves shall be
installed within 6 feet of the equipment it serves.
10.7
ELECTRICAL GROUND AND BONDING
10.7.1 ELECTRICAL GROUND
Gas piping shall not be used for an electrical ground nor shall electrical circuits
utilize gas piping, the casing of controls, panels or other metal parts in lieu of
wiring. This provision shall not apply to low voltage control and ignition circuits,
or to electronic flame detective device circuits incorporated as part of the
appliance.
10.7.2 ELECTRICAL CONTINUITY AND BONDING
The gas piping system within a building shall be electrically continuous and shall
be bonded to the established grounding grid for that building's electrical system.
The bonding conductor shall be of copper or other corrosion resistant material.
The conductor may be solid or stranded, insulated or bare #8 copper wire or larger
and shall be installed in an accessible area where practicable. In no case shall the
bonding conductor be attached to the hot water piping system. The connections to
the gas piping system and the grounding grid shall be in accordance with the
provisions of the National Electrical Code for "Connection to Electrodes",
Section 250-115. Bonding clamps for use on copper tubing shall be of copper and
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those for use on galvanized or steel pipe shall be of galvanized iron and so
designed as to avoid physical damage to the pipes.
10.8
CORRUGATED STAINLESS STEEL TUBING
10.8.1 GENERAL
Corrugated stainless steel tubing (CSST) may be used, at either low pressure or at
an elevated pressure, for house piping when installed per the following
provisions:
1. The system must consist of approved materials and be installed in accordance
with the manufacturer's specifications.
2. Buildings with four or more units may use either low or elevated pressures.
3. Residential buildings with three or less units are restricted to low pressure
delivery.
These systems may be used in all areas where the Company is the inspecting
agency, but approval must be acquired from the appropriate agencies in areas
where the Company does not approve house line installations.
10.8.2 MATERIAL
3. For approved materials, see Section 13.11 “Corrugated Stainless Steel Tubing
and Components”.
10.8.3 SYSTEM DESIGN
1. The entire CSST piping system in an individual building must use tubing and
fittings of the same manufacturer; i.e. the entire system shall be from
one manufacturer.
Components from various manufacturers are not
interchangeable.
2. The piping shall not have any splices (joints) except those necessary at
approved manifolds or appliance terminations. All connections shall be made
in accessible locations.
3. CSST shall not be used as, or to replace, the flexible connector commonly
used on gas ranges and dryers.
4. Operating Pressure:
A. Residential units smaller than a four family dwelling can use CSST only at
the standard low pressure delivery (1/4 psig or 7" water column).
B. Residential buildings that have four or more units served from a single gas
service and commercial buildings can use CSST with either standard 7"
water column pressure delivery or 2 psig delivery as supplied from the
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Company service regulator. The use and design of this elevated
pressure system shall be approved by the Company before
installation. The service regulator and meters provided by the Company
for the 2 psig delivery system are unique and specifically designed for the
2 psig application.
5. A line regulator shall be installed on the elevated pressure system,
immediately ahead of the appliance branch manifold. This regulator will
reduce the 2 psig delivery pressure to the appropriate inlet pressure for the
appliances. In addition, this regulator shall:
A. Be equipped with a vent limiting device supplied by the manufacturer.
B. Be installed in the horizontal position and in an accessible location.
C. Be installed according to manufacturer’s specifications.
D. Have an accessible AGA approved shut-off valve immediately ahead of
the line regulator.
10.8.4 INSTALLATION
1. The installer shall follow the manufacturer’s specifications (see Figure 19).
2. The installer shall be certified to install CSST by the manufacturer or its
authorized representative, and shall carry a card to verify the certification and
if requested, show it to an inspector.
3. The piping from the meter outlet to the building wall shall be black iron pipe.
The transition from black iron pipe to CSST made at the building wall shall
have an AGA approved, flanged transition fitting and be firmly attached to the
building wall.
All CSST fittings shall be accessible.
The meter shall be adequately supported in accordance with Section 9.4.2
4. Piping from the building wall to the appliance manifold, in an LP (7” w.c.)
system can be either:
A. black iron pipe, or
B. one continuous piece of CSST
C. a combination of both
5. The piping on an elevated pressure (2 psig) system from the building wall to
the line regulator at the distribution manifold shall be one continuous length of
CSST.
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6. For either LP or elevated pressure systems, the piping from the distribution
manifold to each appliance shall be one continuous length. It shall terminate
at an approved appliance connection in an accessible location.
7. Each tubing run leaving the manifold should be labeled to identify the
appliance it serves.
8. An accessible shut-off valve shall be installed within 6 feet of each appliance
termination fitting.
9. Tubing passing through concrete shall be sleeved in conduit.
10. Tubing pass through wood wall studs and sole plates shall be protected from
damage with the manufacturer’s striker plates or metallic conduit. Substitute
plates are not permitted.
11. The installer shall provide a gauge tap between the service regulator and the
line regulator. A meter bar tap is acceptable.
12. The CSST system within a building shall be electrically continuous and shall
be bonded to the established grounding grid for that building’s electrical
system (see Section 10.7.2). The bonding conductor shall be attached to the
CSST system by the use of bonding clamps connected to steel pipe or steel
manifolds. To avoid damage to the tubing, the bonding clamps should not be
placed directly onto the tubing.
13. CSST shall not be installed outside exposed to the atmosphere and/or buried
without being encased with approved material and shall have the casing ends
sealed.
10.8.5 INSPECTION
A visual inspection shall be performed by the inspecting authority (see
“Inspecting Authority”, page i) before the interior walls are finished (before
drywall is installed). The piping installation shall be inspected to ensure the
following:
1. Striker plates and other protective devices are installed at required locations.
2. The physical condition of the entire piping system is acceptable.
3. CSST couplings should not be installed in a concealed space. When it is
necessary to conceal a fitting, such as fireplace installations, the fitting must
be approved for installation in a concealed space. Ref: AGA/ANSI LC-1a,
l993, and AGA/ANSI LC-1 CGA6.2, 1996.
4. Proper CSST installation from the line regulator to the appliance manifold.
5. Required shut-off valves are installed at the line regulator and at each appliance.
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6. Appliance tubing is labeled.
7. A permanent tag is installed on the service regulator to identify an elevated
pressure.
10.8.6 TESTING
1. The final installation shall be inspected and pressure tested for leaks at 3-psig
for ten minutes using procedures specified in the International Fuel Gas Code
"Inspection, Testing and Purging".
2. Outlet fittings for appliance connections and downstream valves shall be
plugged during the pressure test.
3. The elevated pressure system requires two separate tests:
A. from the meter connection to the inlet valve of the line regulator, and
B. from the outlet of the line regulator through the manifold to the appliance
fittings.
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SECTION 11
INSPECTION AND TESTING
11. 1 GENERAL
11.1.1 INSPECTING AUTHORITY
The inspecting authority for the consumer's service piping shall be the Company.
When the city, county, or other governmental agency has an inspection authority,
which covers consumer's house lines, they will be responsible for inspections. In
all other cases, the Company will make the necessary inspections (see the Preface
in this book for a list of localities where Vectren is the inspection authority for
consumer's house lines).
The Company may, in any case, inspect the consumer's piping in order to satisfy
itself that safe methods of construction have been followed and that gas lines have
been installed and tested in accordance with approved standards and procedures.
If piping is found to be unsafe, the Company reserves the right to not provide
service until repairs are made.
The Company shall not be responsible for defective or faulty material or
workmanship, or for any loss or damage arising from such defective or faulty
material or workmanship installed by the consumer or their agent.
11.1.2 RESPONSIBILITY
The owner, plumber, or owner's representative shall give the inspecting authority
notice that work is completed and ready for inspection and testing. On new
construction, this notice should be made no less than one working day in advance
of the time the inspection is desired. The test should be in place when the
inspecting authority arrives.
11.1.3 CONDITIONS OF TEST
The approved materials and equipment necessary for inspection and testing shall
be supplied by the installing agency and be verified by the inspector. When
repairing existing piping, those repairing the service must be operator qualified.
Air or an inert gas such as nitrogen shall be used to pressurize the piping. In no
case shall oxygen, acetylene or other flammable gas be used.
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11.2
REQUIRED INSPECTIONS AND TESTS
11.2.1 VISUAL INSPECTION
Consumer's service pipe and underground house lines will be visually inspected
before backfilling. The pipe should be fully exposed. The ditch should be
backfilled within 24 hours following the inspection. If the Company discovers
the service has not been backfilled, they reserve the right to request another test
before providing service. An exception to this 24-hour rule is allowed when the
back-fill material is frozen. The ditch and back-fill material shall be free of rocks,
stones, cinders, slag, concrete blocks, pieces of wood or other materials which
may cause damage to the pipe or pipe coating.
When the house line is to be concealed in hollow partitions or channels, there shall
be a visual inspection when rough-in has been completed.
11.2.2 PRESSURE TEST
Consumer's service pipe and house lines shall be tested after construction and
before being placed in service to demonstrate that it does not leak. The testing
shall be done with due regard for the safety of employees and the public. New
piping will be subjected to the appropriate test in Table 11. The piping shall be
tested at the specified pressure and time duration without showing a drop in
pressure. A soapsuds test shall be made at operating pressure on exposed fittings
in the service or house lines, which were not included in the pressure drop test.
Pipe pressures shall be measured by instrumentation approved by the inspecting
agency.
11.2.3 REPAIRED, REMODELED OR EXTENDED HOUSE LINE PIPING
Where the existing consumer's house line is repaired, remodeled or extended, the
piping shall be subjected to one of the following tests, as determined by the
inspecting authority.
1. Applicable test listed in Section 11.2.2 above.
2. Piping above ground may be tested under operating pressure and inspection
for leaks may be made using soap bubble tests on the altered joints and
fittings.
3. The meter dial method may be used where the meter dial is observed for at
least five minutes for a one-half foot dial, eight minutes for a one foot dial and
ten minutes for a two foot dial with no movement of the test hand. This test is
made on the upstroke and with all appliances and pilot lights turned off.
4. Where it is necessary to make piping alterations:
•
December 2007
Operator Qualified personnel (see Section 4.6) may remove the meter
(only a diaphragm meter without instrumentation) after first closing
the meter valve and then disconnecting both the inlet and outlet of the
45
meter. The meter shall be placed in an upright position and both inlet
and outlet openings shall be covered. The meter valve shall be left
shut off and the service line outlet shall be plugged immediately. The
meter may be reconnected and the meter valve opened after the
alterations have been inspected and tested.
•
Non Operator Qualified personnel will follow the above instructions
but may not remove or reconnect the meter or turn the meter valve
back on. The Company must be notified to do so when it is necessary.
11.2.4 TEMPORARILY DISCONNECTED OR ABANDONED CONSUMER
SERVICE PIPING
Service lines temporarily disconnected for repair or replacement shall be tested
from the point of disconnection to the meter valve in the same manner as new
service lines before reconnecting (see Table 11). After completion of the test, the
piping of the tested section shall be reconnected to the upstream section. A soap
test shall be made at operating pressure on the exposed fittings in the service line,
which were not included in the pressure drop test.
Service lines previously abandoned may be tested against the curb valve in
accordance with Table 11 when reinstated. However, abandoned bare steel
service lines may not be reinstated.
The Company will not guarantee a curb stop as a testing device. The Company
will not replace a curb stop for the sole reason that it will not hold a test.
When a screw curb stop is found, the plumber should notify the Company.
The Company reserves the right to request a test on service lines or house lines
that have not been used or because maintenance is required on the Company
service or main. Tests shall be made by one of the applicable tests as listed in
Section 11.2.2.
In the event the lines do not pass such inspection and test, or if other
unsatisfactory conditions result in disapproval by the Company, the necessary
correction(s) shall be made at the owner's expense and the lines involved shall be
re-tested.
11.3
PURGING AFTER TEST
After the piping has been tested, the gas piping shall be fully purged. Piping shall not be
purged into the combustion chamber of an appliance.
The open end of piping being purged shall not discharge into confined spaces or areas
with sources of ignition, unless precautions are taken to perform this operation in a safe
manner by ventilation and control of conditions. Never leave the appliance while purging
is in process. Each connection shall be tested for leaks in an approved manner after
purging.
The installing agency shall assure itself that all piping and appliances are fully purged
before leaving the premises.
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SECTION 12
PROTECTIVE COATINGS AND CATHODIC PROTECTION
12.1
GENERAL
Protective coatings and cathodic protection shall conform to Control of External
Corrosion on Underground or Submerged Metallic Piping Systems NACE RPO-169.
12.2
PROTECTIVE COATING
12.2.1 GENERAL
Underground steel or wrought iron service and house lines and fittings shall be
provided with a protective coating system. The protective coating system on the
pipe shall extend to a point at least two inches above finished grade. Piping
coated at the mill shall be in accordance with Section 12.2.2. Field applied
coatings shall consist of a coating and compatible primer that retards corrosion
and shall be in accordance with Sections 12.2.2, 12.2.3 and 12.3.6.
12.2.2 APPROVED MILL APPLIED PIPE COATING
EPOXY TYPE COATING - A fusion bonded epoxy coating applied at the
coating mill. The coating shall be 12 – 14 mils.
12.2.3 FIELD APPLIED PROTECTIVE COATINGS FOR UNDERGROUND
JOINTS, FITTINGS & CONNECTIONS
Hot or cold applied tapes may be used to coat welds. Moldable sealant or wax
tape may also be used for irregular shaped fittings. The manufacturer's directions
for application shall be followed in applying these products. Tapes are to be
applied with primers of the same brand name.
Holidays less than the size of a nickel should be repaired with an approved two
part epoxy. The same type epoxy should also be used to coat thermit welds.
Holidays larger than a nickel or other significant coating damage should be
repaired with hot or cold applied tape.
12.2.4 FIELD APPLICATION
1. SURFACE PREPARATION - The metal surface must be dry and cleaned of
oil, grease, rust, mud, paint and other foreign material by files and brushes or
a combination of these.
2. APPLICATION OF PRIMERS - The primer used should be of the grade and
type for the coating to be applied. The primer must be thoroughly mixed
before application. The primer shall be applied in a thin, even coating, free of
runs, drips or thick spots. Heavy concentrations of primer shall be brushed
out.
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3. APPLICATION OF COATINGS - Tape coating shall be applied to the
primed metal surface free of dirt, dust and moisture. It should be applied in a
spiral wrap using a minimum of one-half inch overlap, or in compliance with
the recommendations and specifications of the tape manufacturer.
Irregular shapes such as fitting should be covered with moldable sealant
before application of tape. It is recommended that fittings be wrapped from
the middle of the fitting to the pipe area for best coverage. The coating shall
be pliable and flexible for application, and installed in a quality workmanship
manner.
In lieu of moldable sealant and tape, fittings may be protected with an
approved wax tape.
Brushed applied mastic may only be used with prior Company approval.
12.2.5 STORAGE, HANDLING AND INSTALLING
Stored pipe should be protected internally and externally from atmospheric
corrosion and coating deterioration.
Coated pipe shall be handled in a manner to protect the coating from damage. It
shall not be dropped, rolled, or impacted against solid objects with a force capable
of causing damage to the coating. The pipe ditch shall be free of rocks, stones,
skids, scrap metal or other solid objects which might injure the coating during the
backfilling operation.
12.2.6 PROTECTIVE COATINGS FOR EXPOSED PIPE AND FITTINGS
Metallic gas piping exposed to the outside weather environment shall be protected
from corrosion by the application of a non-metallic base painting system
specifically designed and manufactured for protection of steel structures.
The coating system shall be applied by brush or spray in accordance with the
recommendations and specifications of the coating manufacturer. The pipe
surface to be coated must be free of rust, scale, dirt, dust, grease, water or other
surface contamination.
When the pipe extends out of the ground, such as on a riser, the coating on the
below ground piping shall extend a minimum of two inches above finished grade.
The union of the below ground coating and above ground coating shall be well
bonded by application of the coating materials.
12.3
CATHODIC PROTECTION
Underground steel piping shall be protected from corrosion by the installation of
magnesium anodes and shall be isolated from other structures. This protection shall be in
addition to, and supplement the protection from corrosion given by the application of
protective coatings.
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12.3.1 MAGNESIUM ANODES
Magnesium anodes installed shall be of a type commonly used for pipeline
protection and shall comply with the minimum specifications shown in Table 12.
The anodes shall be cast around a galvanized steel core that is centered in the
magnesium alloy. The core shall be three to five inches shorter than the anode
and shall not exceed 1½ ounces per foot in weight and be of a shape to assure
permanent low resistance contact with the anode metal. The #12 awg insulated
solid copper wire shall be attached to the steel core with silver solder.
12.3.2 ANODE INSTALLATIONS
The installation of anodes to service lines or house lines shall conform to the
specifications listed in Table 13. Anodes shall be buried a minimum of three feet
from the pipe at or below pipe depth.
1. Steel House Line Extending From Meter Setting At Lot Line
A buried steel house line extending from the downstream side of the meter is
to be protected by anodes in the same manner as a comparable steel service
pipe supplied from a plastic main.
2. Plastic House Line Extending From Meter Setting At Lot Line
Plastic pipe cannot terminate above ground at the meter setting. Anodeless
type risers shall be used for the meter setting. Riser support brackets (stakes)
should be used to prevent the meter setting from moving (See Figures 7, 8
and 9).
When the service line and house line are both plastic, a meter support bracket
or support system for both risers must be installed (See Figure 9).
3. Plastic Insert In Steel Service Line
A one pound bare magnesium anode with a #12 awg insulated solid copper
wire is to be attached to the steel riser at the building wall. An isolated
underground steel piping system installed adjacent to or between buildings
shall be protected by anodes in accordance with the minimum specifications
shown in Table 12.
12.3.3 ANODE LEAD ATTACHMENT
The anode lead wire shall be attached to the steel piping by the thermit weld
process. The maximum charge used shall be 15 grains. The steel pipe shall be
cleaned to dry parent metal for the attachment of the lead wire.
If the attachment is made underground, the steel pipe at the lead wire attachment
area shall be cleaned of slag, dirt, or contamination and shall be primed and
coated with an approved coating material compatible with the coating applied to
December 2007
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the steel piping. The wire should be wrapped around the pipe to prevent
excessive stress on the connection from the weight of the backfill.
The ditch shall be backfilled with care and in a manner that will not damage the
wire or pipe coating. Underground piping installed in excessively corrosive soil
or environment shall have additional protection installed as may be required or
specified by the Company.
December 2007
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SECTION 13
APPROVED MATERIALS
13.1
PLASTIC PIPE AND TUBING
Approved Sizes and Manufacturers for Service Lines, and Buried House Lines, Insert Renewal of
Existing Service Lines.
SIZES
The following sizes of PE 2406 or PE 3408/4710 polyethylene pipe or tubing as described in
ASTM D-2513 “Thermoplastic Gas Pressure Pipe, Tubing and Fittings” are qualified for use
underground:
1/2" CTS (5/8" OD) x 0.090" Wall
1" CTS (1-1/8" OD) x 0.099" Wall
1-1/4" IPS x SDR-10
2" IPS x SDR-11
3" IPS x SDR-11.5
4" IPS x SDR-11.5
6" IPS x SDR-11.5
8" IPS x SDR-13.5
MANUFACTURERS
The manufacturers listed below are approved extruders for sizes shown. Plastic pipe purchased
from these manufacturers must meet ASTM D 2513 standards.
Manufacturer
Classification
Appalachian Piping Products
Performance DriscoPlex 6500
Performance DriscoPlex 8000 *
PolyPipe
Silver Line Plastics Corporation
US Poly Company
PE 2406
PE 2406
PE 3408/4710
PE 2406
PE 2406
PE 2406
Color
Sizes Approved
Yellow
Yellow
Black
Yellow
Yellow
Yellow
1/2" CTS – 2" IPS
1/2" CTS – 8" IPS
1/2" CTS – 8" IPS
1/2" CTS – 8" IPS
1/2" CTS – 4" IPS
1/2" CTS – 8" IPS
* The primary application for black plastic pipe is heat-fused replacement of the same kind pipe
by qualified fusers. PE 2406 yellow pipe should be used for other replacements and for new
installations.
13.2
TRACER WIRE SPECIFICATIONS
When tracer wire is installed for service line locating, it shall be approved by the company
according to the following specifications:
Tracer wire shall be either #12 solid copper PE coated or company-approved (see listing below)
copper-clad to a solid steel core wire. The minimum wire gauge is #14 for copper-clad. The wire
must have a protective polyethylene (PE) coating (jacket). The jacket color should be yellow.
December 2007
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13.2.1 COPPER CLAD STEEL TRACER WIRE
This type of tracer wire has a steel wire core, with a layer of copper "cladded" to its outside. A
protective coating (jacket) is then applied to protect the copper from the underground
environment, just as with solid copper tracer wire.
MANUFACTURER
Copperhead
Industries
PART NO.
WIRE
GAUGE
DESCRIPTION
1230Y-HS-500
12
#12 AWG Reinforced Tracer Wire,
500' spools: Direct burial #12 AWG
solid (0.0808" conductor diameter), 21%
conductivity annealed copper-clad high
carbon steel high strength tracer wire,
380# average tensile break load, 30 mil.
High molecular weight-high density
yellow polyethylene jacket complying
with ASTM D-1248, 30 volt rating.
1430Y-HS-500
14
#14 AWG Reinforced Tracer Wire,
500' spools: Direct burial #14 AWG
solid (0.0641" conductor diameter), 21%
conductivity annealed copper-clad high
carbon steel high strength tracer wire,
230# average tensile break load, 30 mil.
High molecular weight-high density
yellow polyethylene jacket complying
with ASTM D-1248, 30 volt rating.
NOTE: #12 AWG is preferred
45 mil coating available for (directional) boring installations
Other spool lengths available
13.3
SERVICE RISERS
Listed below are approved Flex and Prebent (Rigid) Riser Sizes and Manufacturers.
Pipe Size (Inlet)
Manufacturer
R.W. Lyall & Company – Prebent Rigid
½” CTS, 1” CTS, 2” IPS
R.W. Lyall & Company – Flex
½” CTS, 1” CTS
Energy Control Systems, Inc. (ECSI) Preformed Rigid
2” IPS, 3” IPS, 4” IPS
Perfection Corporation – Prebent Rigid
½” CTS, 1” CTS, 1¼” IPS, 2” IPS
Perfection Corporation – Prebent Rigid HD
¾” IPS, 1” CTS, 2” IPS
Perfection Corporation – Flex
½” CTS, 1” CTS, 1¼” IPS
Chicago Fittings Corporation - Flex
½” CTS, 1” CTS
R.W. Lyall, ECSI, and Chicago Fitting have factory assembled service head adapters. Perfection
Corporation service head adapters are approved for installation on Perfection field assembled
risers.
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Prebent Riser w/o Carrier Pipe
Flex Riser w/o Carrier Pipe
Prebent w/Carrier Pipe
13.3.1 SERVICE HEAD ADAPTERS
Manufacturer
Part No.
Description
Perfection*
71140
71151
71154
71190
1” MPT x 1/2” CTS 0.090” x 3/4” FPT
1" MPT x 1" CTS 0.099/.102 x 1-1/4" FPT
1-1/4" MPT x 1" CTS 0.099/.102 x 1-1/4" FPT
1-1/4” MPT x 1-1/4” IPS SDR-10 x 2” FPT
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13.4
MECHANICAL FITTINGS: PLASTIC TO PLASTIC CONNECTIONS
The following fittings are molded with PE3408/4710 or PE100 resin (black) and can be used on
high- or medium-density pipe for new or replacement plastic service applications and to make
repairs on existing plastic services.
Manufacturer
Perfection*
Part No.
50100
50103
50035010
50314
50149
50641
50623
50192
50312
50333010
50294
51333
50325010
50315
50223
50199
50292
50327010
50316
50328100
50348100
51323100
50015
50048
50024100
50317
50306
Pipe Size, Wall or SDR
1/2" CTS 0.090"
1" CTS 0.099"
1-1/4" IPS SDR 9.3/10
2" IPS SDR11
1/2" CTS x 1" CTS 0.090" x 0.099"
1" IPS x ½" CTS SDR11 x 0.090"
1" IPS x 1" CTS SDR11 x 0.099"
1-1/4" IPS x 1" CTS SDR10 x 0.099"
2" IPS x 1" CTS 11 x 0.099"
2" IPS x 1-1/4" IPS SDR11 x 10
1/2" CTS 0.090"
1" CTS 0.090/0.099/0.102"
1-1/4" IPS SDR10
2" IPS SDR11
1/2" CTS x 1" CTS 0.090" x 0.099"
1/2" CTS 0.090"
1" CTS 0.090/0.099/0.102"
1-1/4" IPS SDR10
2" IPS SDR11
1-1/4" IPS x 1" CTS 10 x 0.099"
2" IPS x 1" CTS 11 x 0.099"
2" IPS x 1-1/4" IPS SDR11 x 10
1/2" CTS 0.090"
1" CTS 0.099"
1-1/4" IPS SDR10
2" IPS SDR11
2" IPS SDR11
* Special tools are required for assembly of these products.
December 2007
54
Description
Coupling
Coupling
Coupling
Coupling
Reducing coupling
Reducing coupling
Reducing coupling
Reducing coupling
Reducing coupling
Reducing coupling
Ell
Ell
Ell
Ell
Reducing ell
Tee
Tee
Tee
Tee
Reducing tee
Reducing tee
Reducing tee
Blind end cap
Blind end cap
Blind end cap
Blind end
Blind end cap
Manufacturer
R. W. Lyall Co.*
Part No.
LC010B-DER
LC030D-DER
LC040B-DESR
LC200Y-DESR
LC080X-DER
LC200Y-DER
LC010B-ELR
LC030D-ELR
LC080X-ELR
LC200Y-ELR
LC030D-3TR
LC080X-3TR
LC200Y-3TR
LC030D010B-RR
LC070Y030D-RR
LC080X030D-RR
LC200Y080X-RR
LC200Y030B-RR
LC080X080X030D
LC200Y200Y080X
LC200Y200Y030D
LC010B-ECR
LC030D-ECR
LC070Y-ECR
LC080X-ECR
LC200Y-ECR
Pipe Size, Wall or SDR
½” CTS 0.090
1" CTS 0.099
1 ¼” IPS SDR10
2" IPS SDR11
1 ¼” IPS SDR10
2" IPS SDR11
½” CTS 0.090
1" CTS 0.099
1 ¼’ IPS SDR10/11
2" IPS SDR11
1" CTS 0.099
1 ¼” SDR10/11
2" IPS SDR11
1" CTS 0.099 x ½” CTS
0.099
1" IPS SDR11 x 1" CTS
0.099
1 ¼” IPS SDR10 x 1" CTS
0.099
2" IPS SDR11 x 1 ¼” IPS
SDR10
2" IPS SDR11 x 1" CTS
0.099
1 ¼” IPS SDR10 x 1" CTS
0.099
2" IPS SDR11 x 1 ¼” IPS
SDR11
2" IPS SDR11 x 1" CTS
0.099
½” CTS 0.090
1" CTS 0.099
1" IPS SDR-11
1 ¼” IPS SDR10
2" IPS SDR11
Description
Coupling
Coupling
Coupling
Coupling
Repair Coupling
Repair Coupling
Elbow
Elbow
Elbow
Elbow
Tee
Tee
Tee
Reducing Coupling
Reducing Coupling
Reducing Coupling
Reducing Coupling
Reducing Coupling
Reducing Tee
Reducing Tee
Reducing Tee
End Cap
End Cap
End Cap
End Cap
End Cap
* Special tools are required for assembly of these products.
The following fittings are molded with PE2406/2708 resin (yellow) and can only be used on
medium-density pipe for new or replacement plastic service applications and to make repairs on
existing medium-density plastic services.
Manufacturer
Continental
Industries
(Con-Stab ID only)
December 2007
Part No.
3259-52-1004-00
3259-52-1008-00
3259-52-1014-00
3259-52-1015-00
3259-52-1015-AA
3259-52-1017-00
3259-54-0804-00
Pipe Size, Wall or SDR
½” CTS 0.090”
1” CTS 0.099/0.101”
1” IPS SDR11
1 ¼” IPS SDR10
1 ¼” IPS SDR11
2” IPS SDR11
½” CTS x 1” CTS .0.090” x
0.099"/0.101”
55
Description
Coupling
Coupling
Coupling
Coupling
Coupling
Coupling
Reducing Coupling
3259-54-1404-00
3259-54-1408-00
3259-54-1508-00
3259-54-1508-A0
3259-54-1514-00
3259-54-1708-00
3259-54-1715-00
3259-51-1004-00
3259-51-1008-00
3259-51-1014-00
3259-51-1015-00
3259-51-1017-00
3259-50-1004-00
3259-50-1008-00
3259-50-1015-00
3259-50-1017-00
3259-49-0408-00
3259-49-0804-00
3259-49-1508-00
3259-49-1508-A0
3259-49-1708-00
3259-49-1715-00
3259-57-1004-00
3259-57-1008-00
3259-57-1015-00
3259-57-1015-AA
3259-57-1017-00
3259-53-1004-00
3259-53-1008-00
3259-53-1015-00
3259-53-1015-AA
3259-53-1017-00
0459-56-1200-00
0859-56-1200-00
3238-14-4415-00
3238-14-4415-AA
3238-14-4417-00
December 2007
1” IPS x ½” CTS SDR11 x
0.090”
1” IPS x 1” CTS SDR11 x
0.099"/0.101”
1 ¼” IPS x 1” CTS SDR10 x
0.099"/0.101”
1 ¼” IPS x 1” CTS SDR11 x
0.099"/0.101”
1 ¼” IPS x 1” IPS SDR10 x
SDR11
2" IPS x 1" CTS SDR11 x
0.099"/0.101"
2” IPS x 1 ¼” IPS SDR11 x
10
½” CTS 0.090”
1” CTS 0.099/0.101”
1” IPS SDR11
1 ¼” IPS SDR10
2” IPS SDR11
½” CTS 0.090”
1” CTS 0.099/0.101”
1 ¼” IPS SDR10
2” IPS SDR11
½” CTS x 1” CTS 0.090” x
0.099/0.101”
1” CTS x ½” CTS
0.099/0.101” x 0.090”
1 ¼” IPS x 1” CTS 10 x
0.099/0.101”
1 ¼” IPS x 1” CTS 11 x
0.099/0.101”
2” IPS x 1” CTS 11 x
0.099/0.101”
2” IPS x 1-1/4” IPS SDR11 x
10
½” CTS 0.090”
1” CTS 0.099/0.101”
1 ¼” IPS SDR10
1 ¼” IPS SDR11
2” IPS SDR11
½” CTS 0.090”
1” CTS 0.099/0.101”
1 ¼” IPS SDR10
1 ¼” IPS SDR11
2” IPS SDR11
½” CTS 0.090” x 12” long
1” CTS 0.099/0.101” x 12”
long
1 ¼”” IPS 10 x 14” long
1 ¼” IPS 11 x 14” long
2” IPS 11 x 14” long
56
Reducing Coupling
Reducing Coupling
Reducing Coupling
Reducing Coupling
Reducing Coupling
Reducing Coupling
Reducing Coupling
Ell
Ell
Ell
Ell
Ell
Tee
Tee
Tee
Tee
Reducing Tee
Reducing Tee
Reducing Tee
Reducing Tee
Reducing Tee
Reducing Tee
Cap-n-Go
Cap-n-Go
Cap-n-Go
Cap-n-Go
Cap-n-Go
End Cap
End Cap
End Cap
End Cap
End Cap
Repair Coupling
Repair Coupling
Repair Coupling
Repair Coupling
Repair Coupling
13.5
MECHANICAL FITTINGS: STEEL PIPE TO PLASTIC PIPE
The below listed material is approved only for the connection of steel pipe to plastic pipe when
replacing partial service lines.
Manufacturer
Part No.
Dresser
0090-1734-536
Description
1-1/4" x 1-1/4" Coupling, Compression, Lock Nut Steel
End, Plasti-Lok, *Coated, with SDR-10 Insert Stiffener
Other End
0090-1731-536
2" x 2" Coupling, Compression, Lock Nut Steel End,
Plasti-Lok, *Coated, with SDR-11 Insert Stiffener
Other End
Note: All fittings must be E-Coat Primer Coated, which requires additional external coating prior
to backfilling
13.6
MECHANICAL FITTINGS: STEEL PIPE TO STEEL PIPE
The below listed material is approved only for the connection of steel pipe to steel pipe when
installing new or replacing partial service lines.
Manufacturer
Part No.
SIZE
Description
Dresser
0090-0001-086
3/4"
Note: All fittings must be
E-Coat Primer Coated,
which requires additional
external coating prior to
backfilling
0090-0002-086
1"
0090-0003-086
1-1/4"
0090-0580-086
1" x 3/4"
0090-0581-086
0090-0241-086
1-1/4" x
3/4"
1-1/4" x
1"
3/4"
0090-0242-086
1"
0090-0243-086
1-1/4"
0090-0270-086
3/4"
0090-0271-086
1"
0090-0272-086
1-1/4"
0090-0710-086
3/4"
0090-0711-086
1"
0090-0712-086
1-1/4"
Coupling, Style 90, Compression, Lock
Type
Coupling, Style 90, Compression, Lock
Type
Coupling, Style 90, Compression, Lock
Type
Coupling, Reducing, Style 90,
Compression, Lock Type
Coupling, Reducing, Style 90,
Compression, Lock Type
Coupling, Reducing, Style 90,
Compression, Lock Type
Ell, 90°, Style 90, Compression, Lock
Type
Ell, 90°, Style 90, Compression, Lock
Type
Ell, 90°, Style 90, Compression, Lock
Type
Ell, Street, 90°, Style 90, Compression,
Lock Type
Ell, Street, 90°, Style 90, Compression,
Lock Type
Ell, Street, 90°, Style 90, Compression,
Lock Type
Tee, Style 90, Compression, Lock
Type
Tee, Style 90, Compression, Lock
Type
Tee, Style 90, Compression, Lock
Type
0090-0582-086
December 2007
57
MECHANICAL FITTINGS: STEEL PIPE TO STEEL PIPE contd.
Manufacturer
Part No.
SIZE
Description
Smith Blair-CSI
U-18A7-UMG
1-1/4"
EZ-18A7-UMG
1-1/4"
U-218A7-UMG
2" x 11/4"
EZ-218A7UMG
2" x 11/4"
U-28A7-UMG
2"
EZ-28A7-UMG
2"
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Dresser
0711-0001-201
1-1/4"
Note: All fittings must be
E-Coat Primer Coated,
which requires additional
external coating prior to
backfilling
0711-0001-201
1-1/4"
0711-0002-201
2"
0711-0026-201
1-1/4" x
2"
December 2007
58
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
Coupling, Universal, Bolted, Lock
Style, 7" Middle Ring, Conductive
Gaskets, Epoxy Coated, with Anode
Connector
13.7
METER BARS
The following meter bars are approved for installation:
Manufacturer
Meter
Connection
Size (Inches)
Manufacturer's
Designation
Meter Swivel
C to C Dimension
Mueller
20 LT
A-11 M Series
Wedgeseal®
Insulated
6”
Richards Mfg
20 LT
MBSS6-3/4-1-3/4
-FI
6”
A. Y. McDonald
20 LT
1” inlet x 1”
outlet, Outlet ¼”
Allen Head
Gauge Tap,
Black Body
1” inlet x 1”
outlet, Outlet ¼”
Allen Head
Gauge Tap,
Black Body
1” inlet x 1”
outlet, Outlet ¼”
Allen Head
Gauge Tap,
Black Body
6610-CCCE
6”
Mueller
30 LT
GA-11-MO-CMC
Series
Wedgeseal
Insulated
8 ¼”
Richards Mfg
30 LT
A. Y. McDonald
30 LT
Advance
Engineering Corp.
45 LT
Single Meter Bars
1” inlet x 1 ¼”
outlet, Outlet ¼”
Allen Head
Gauge Tap,
Black Body
1” inlet x 1 ¼”
outlet, Outlet ¼”
Allen Head
Gauge Tap,
Black Body
1” inlet x 1 ¼”
outlet, Outlet ¼”
Allen Head
Gauge Tap,
Black Body
8 ¼”
8 ¼”
1 ¼” Inlet x 1 ¼”
Outlet w/ ¼” Allen
Head Gauge Tap
11”
Multiple Meter Set Bars (BACK INLET)
A. Y. McDonald
20 LT
Mueller
20 LT
December 2007
1’’ Inlet x 1”
Outlet Insul. w/
¼” gauge tap and
plug
1’’ Inlet x 1”
Outlet Insul. w/
¼” gauge tap and
plug
59
6712-CCE
6”
730500
6”
Advance
Engineering Corp.
1A
1’’ Inlet x 1”
Outlet Insul. w/
¼” gauge tap and
plug
FG8035
6”
Advance
Engineering Corp.
30 LT
1’’ Inlet x 1 ¼”
Outlet Insul. w/
¼” gauge tap and
plug
FG8036
8 ¼”
13.8
METER SET VALVES
The below listed valves are approved for meter set applications.
Threaded Valves: Black Iron Body
Manufacturer Size
Manufacturer's
(Inches) Designation
Rate
Working
Pressure
(psig)
Manufacturers
Connection
Mueller
Dresser Mfg.
Div.
A. Y. McDonald
Mfg. Co.
Nordstrom
Valves, Inc.
December 2007
¾
H11118
100
FIPS
1
H11118
100
FIPS
1¼
H11118
100
FIPS
1½
H11118
100
FIPS
2
H11118
100
FIPS
¾
H11185
500
FIPS
1
H11185
500
FIPS
1¼
H11185
500
FIPS
1½
H11185
500
FIPS
2
H11185
500
FIPS
¾
0275-0026-002
175
FIPS
1
0275-0028-002
175
FIPS
1¼
0275-0029-002
175
FIPS
1-1/2
0175-0004-001
175
FIPS
2
0175-0005-009
175
FIPS
3/4
560B
175
FIPS
1
1-1/4
1-1/2
2
560B
560B
560B
560B
175
175
175
175
FIPS
FIPS
FIPS
FIPS
2
Fig. No. 142
200
FIPS
60
Additional
Comments
No test port,
no lock wing
head
No lock wing
head
No test port,
no lock wing
head
13.9
WELD / FLANGE VALVES
Kerotest
13.10
2
2
2
3
3
3
4
4
Weldball – Full Port
Weldball – Full Port
Weldball – Full Port
Weldball – Full Port
Weldball – Full Port
Weldball – Full Port
Weldball – Full Port
Weldball – Full Port
275
275
275
275
275
275
275
275
Weld x Weld
Weld x Flange
Flange x Flange
Weld x Weld
Weld x Flange
Flange x Flange
Weld x Flange
Flange x Flange
MOBILE HOME GAS CONNECTORS
Mobile (Manufactured) Home Gas connectors shall be UL listed and in conformance with the
current edition of either the National Fuel Gas Code (ANSI Z223.1 / NFPA 54) or the International
Fuel Gas Code (ICC) as specified by Title 24 HUD.
13.11
CORRUGATED STAINLESS STEEL TUBING AND COMPONETS
The following CSST piping systems are currently acceptable for use by Company consumers:
Wardflex by Ward
Gastite by Titeflex
TracPipe by Omega Flex
PGP System by Parker Hannifin
Pro-Flex by Tru-Flex
CSST systems shall meet the requirements of the American National Standard Code “Fuel Gas
Piping Using Corrugated Stainless Steel Tubing” (CSST) - ANS1/AGA LC - 1.
Tubing shall meet the requirements of AGA 1-87 standard.
The line regulator shall comply with the latest edition of ANSI Z21.18. This regulator shall
"lockup" at no flow conditions. The Maxitrol 325-3 and 325-5 regulators are the only regulators
currently AGA-certified for use with the CSST system.
Appliance regulators shall meet the requirements of ANSI Z21.18.
13.12
SLEEVES FOR MASONRY WALL ENTRANCES
Compression Nut Wall Sleeve Seals contains nuts and gaskets only. Threaded *pipe (sleeve)
not included.
Manufacturer
Part No.
Size
(Steel Carrier Pipe x *Casing Sleeve)
Dresser
December 2007
0201-0001-002
3/4" x 1-1/4"
61
(Style 201)
0201-0002-002
0201-0003-002
1" x 1-1/2"
1-1/4" x 2"
Telsco
(Series 400)
400-152
400-202
400-251
1" x 1-1/2"
1-1/4" x 2"
2" x 2-1/2"
Normac
101
1/2" x 1"
102
3/4" x 1-1/4"
103
1" x 1-1/2"
104B
1-1/4" x 2"
Note: Plastic pipe is the preferred material for the casing sleeve. Steel pipe may be use.
December 2007
62
TABLES
December 2007
63
TABLE 1
MAXIMUM CAPACITY OF PLASTIC PIPE IN CUBIC FEET OF GAS PER HOUR
LOW PRESSURE
(Based upon a pressure drop of 0.5 inch water column and 0.6 specific gravity gas.)
Length
(Feet)
10
20
30
40
50
60
70
80
90
100
125
150
175
200
1" CTS
410
290
240
205
185
170
155
145
140
130
120
105
100
90
1 ¼”
1,120
790
645
560
500
455
420
395
375
355
315
290
270
250
Pipe Size
2”
3,160
2,230
1,825
1,580
1,410
1,290
1,195
1,115
1,050
1,000
895
815
755
705
3”
11,850
8,370
6,835
5,920
5,295
4,835
4,475
4,185
3,950
3,745
3,350
3,060
2,830
2,650
4”
18,430
15,882
13,335
10,788
8,240
7,758
7,276
6,794
6,312
5,830
5,295
4,760
4,440
4,120
6”
51,820
44,660
37,500
30,340
23,180
21,822
20,464
19,106
17,748
16,390
13,990
11,590
10,975
10,360
Reference: Section 5.4.2
TABLE 2
MAXIMUM CAPACITY OF PLASTIC PIPE IN CUBIC FEET OF GAS PER HOUR
MEDIUM PRESSURE – 5 PSIG SYSTEMS
(Based upon a pressure drop of 0.5# at 2# main pressure)
Note: CTS denotes copper tubing size, and IPS denotes iron pipe size.
Length
(Feet)
½”CTS
1”CTS
1¼”IPS
50
226
1,570
4,050
75
190
1,320
3,300
100
154
1,070
2,850
125
138
960
2,600
150
123
850
2,400
200
105
725
2,050
Reference: Section 5.4.2
December 2007
64
2”IPS
11,530
9,685
7,840
7,050
6,260
5,340
TABLE 3
MAXIMUM CAPACITY OF PLASTIC PIPE IN CUBIC FEET OF GAS PER HOUR
MEDIUM PRESSURE - 20 PSIG SYSTEMS
(Based upon a pressure drop of 0.5# at 10# main pressure.)
Length
(Feet)
½”CTS
50
290
75
230
100
200
125
170
150
160
Reference: Section 5.4.2
1"CTS
1,950
1,580
1,350
1,200
1,090
1 ¼”IPS
4,700
3,620
3,320
3,015
2,710
2”IPS
12,900
10,100
9,160
8,317
7,475
TABLE 4
MAXIMUM CAPACITY OF PLASTIC PIPE IN CUBIC FEET OF GAS PER HOUR
MEDIUM PRESSURE SYSTEMS (30 PSIG – 60 PSIG)
(Based upon a pressure drop of 1# at 21# main pressure.)
Length
(Feet)
½”CTS
50
440
75
350
100
300
125
260
150
240
Reference: Section 5.4.2
1”CTS
3,200
2,550
2,170
1,900
1,730
1¼”IPS
7,400
5,900
5,060
4,400
4,040
2”IPS
21,170
17,000
14,480
12,800
11,580
TABLE 5
MINIMUM BEND RADII FOR VARIOUS PIPE SIZES
Minimum
Radius
20"
25"
40"
Size
1"
1 ¼"
2"
Reference: Section 5.5.1
December 2007
65
TABLE 6
MINIMUM STANDARD DIMENSIONAL RATIO (SDR) AND WALL THICKNESS
Nominal Pipe
Size (inches)
½" CTS
¾” IPS - HD
1" CTS
1¼" IPS
2" IPS
Average
O.D.
0.63
1.045
1.125
1.660
2.375
Minimum
Minimum Wall
SDR Ratio Thickness (inches)
7.0
0.090
11.0
0.095
11.5
0.099
10
0.166
11
0.216
Reference: Section 6.2
TABLE 7
MAXIMUM INSERT SIZE FOR VARIOUS SERVICE SIZES
Steel Service
1 ¼” Std
1 ¼” IP
¾” IP or MP
1” IP or MP
Plastic Service
1” CTS
1” CTS
½” CTS
½” CTS
Reference: Section 6.6.1
December 2007
66
TABLE_8
TYPICAL HOUSE LINE SIZES FOR NORMAL RESIDENTIAL USE
A typical example of the use of the table follows:
Single Houses
Nominal Pipe Size
1. Meter to First Outlet
2. Outlet of Meter to Drop
Line of Central
Heating Equipment
(80,000 BTU input
or greater
3. To Kitchen Range
4. To Storage Type Water Heater
5. To Each Heating Stove
(20,000 BTU or less)
6. To Clothes Dryer
7. Main Supply to 2nd Floor
8. Gas Light
9. Gas Grill
10. Gas Air Conditioner
1” (or as required)
Tubing O.D. Size
1”
¾”
½”
½”
½”
¾”
½”
½”
¾”
3/8”
5/8”
A typical example of the use of the table follows:
Distance from meter to farthest appliance A to D is 60 feet.
Total gas load is 150 cu. ft. plus 50 cu. ft. plus 60 cu. ft. for a total of 260 cu. ft
Gas flowing through main section A to B is 260 cu. ft.
Use table for 60 foot length and 260 cu. ft. requires 1 ¼” pipe.
Gas flowing through main section B to C is 50 cu. ft. plus 60 cu. ft. for a total of 110 cu. ft.
Use table for 60 foot length and 110 cu. ft. requires one-inch pipe
Gas flowing through main section C to D is 60 cu. ft.
Use table for 60 foot length and 60 cu. ft. requires ¾” pipe
Gas flowing through branch section B to E is 150 cu. ft.
Use table for 60 foot length and 150 cu. ft. requires one-inch pipe.
Gas flowing through branch section C to F is 50 cu. ft.
Use table for 60 foot length and 50 cu. ft. requires ½” pipe.
Reference: Section 10.3.1
December 2007
67
TABLE 9
MAXIMUM CAPACITY OF PIPE IN CUBIC FEET OF GAS PER HOUR
(Based upon a pressure drop of 0.3 inch Water Column and 0.6 Specific Gravity Gas)
Length
(Feet)
½
¾
10
20
30
40
50
60
70
80
90
100
125
150
175
200
132
92
73
63
56
50
46
43
40
38
34
31
28
26
278
190
152
130
115
105
96
90
84
79
72
64
59
55
Nominal Iron Pipe Size - Inches
1
1¼
1½
2
2½
520
350
285
245
215
195
180
170
160
150
130
120
110
100
1,050
730
590
500
440
400
370
350
320
305
275
250
225
210
1,600
1,100
890
760
670
610
560
530
490
460
410
380
350
320
3,050
2,100
1,650
1,450
1,270
1,150
1,050
990
930
870
780
710
650
610
4,800
3,300
2,700
2,300
2,000
1,850
1,700
1,600
1,500
1,400
1,250
1,130
1,050
980
3
4
8,500 17,500
5,900 12,000
4,700
9,700
4,100
8,300
3,600
7,400
3,250
6,800
3,000
6,200
2,800
5,800
2,600
5,400
2,500
5,100
2,200
4,500
2,000
4,100
1,850
3,800
1,700
3,500
To use Table 9, proceed as follows:
A. For the length of pipe in the left hand column of the table, use the distance from the meter to
the farthest appliance. Where the length of pipe falls between the values in the table, use the
next greater length. Where the cubic feet per hour falls between the values, use the next
larger size pipe.
B. Add up all the gas in cubic feet per hour which will flow through each particular section of
main line or branch line due to appliance requirements or outlet allowance.
C. In the left hand column of the table, find the length of pipe as determined in Step A, in the
line across find the quantity of gas in cubic feet per hour as determined in Step B, and at the
top of the table find the size of pipe required. Note that once the length of pipe has been
determined in Step A, that length is to be used to determine the size of pipe required for each
section of main or branch line.
Reference: Section 10.3.1
December 2007
68
TABLE 10
MAXIMUM SUPPORT SPACING FOR VARIOUS PIPE SIZES
Pipe Size in Inches
Support Spacing in Feet
½
¾ or 1
1 ¼ or Larger (Horizontal)
1 ¼ or Larger (Vertical)
6
8
10
Every Floor Level
Reference: Section 10.5.3
December 2007
69
TABLE _11
SERVICE AND HOUSE LINE TESTS
New Customer Service Lines
Min. Test
Duration
Operating Pressure
Test Pressure Size & length
Type of
Gauge *
less than 1 psig
10
minutes
90 psig
≤ 3” & ≤ 100’
Kuhlman
1 psig to 60 psig
10
minutes
90 psig
≤ 3” & ≤ 100’
Kuhlman
Above 60 psig
1 hour
1½ times the
max operating
pressure
≤ 3” & ≤ 100’
Kuhlman
New Customer House Lines (Above ground)
Min. Test
Duration
Operating Pressure
less than 1 psig
10
minutes
1 psig to 60 psig
10
minutes
2 psig CSST (Corrugated Stainless
Steel Tubing)
10
minutes
Test Pressure Size & length
3 psig
1½ times the max
working pressure,
but not less than
3 psig
Type of
Gauge *
≤ 3” & ≤ 100’
Kuhlman
≤ 3” & ≤ 100’
Kuhlman
All
Kuhlman
3 psig
New Customer House Lines (Underground)
Operating Pressure
Min. Test
Duration
Test Pressure Size & length
Type of
Gauge *
less than 1 psig (plastic or steel)
10
minutes
50 psig
(minimum)
All
Kuhlman
1 psig to 60 psig
10
minutes
90 psig
≤ 3” & ≤ 100’
Kuhlman
*
NOTES:
• Services or house lines greater than 3” or longer than 100 feet (for house lines, this
includes the cumulative length) will require a recording gauge for a minimum of 1 hour
and should not exceed 24 hours.
• The Company reserves the right to require a recording gauge on services or house lines
where conditions warrant.
Reference: Section 11.2.2
December 2007
70
TABLE 12
MINIMUM ALLOY SPECIFICATIONS FOR MAGNESIUM ANODES
Composition
Aluminum
Zinc
Manganese (Min)
Iron (Max)
Nickel (Max)
Copper (Max)
Silicon (Max)
Other (Max)
Magnesium
Percent by Weight
5.0 – 7.0
2.0 – 4.0
0.150 Min.
0.003 Max.
0.003 Max
0.100 Max
0.300 Max.
0.300 Max.
Remainder
Minimum Anode Efficiency Shall be 45%
Reference: Section 12.3.1
TABLE 13
ANODE REQUIREMENTS
Underground
Steel
Piping
Steel Service
from
Plastic Main
Size
0-10’
10’-100’
100’-150’
150’-400’
1”
5 lb.
5 lb.
`5 lb.
9 lb.
1 ¼”, 1 ½”,
2
5 lb.
5 lb.
5 lb.
9 lb.
3” & Larger
5 lb.
5 lb.
9 lb.
17 lb.
1”
5 lb.
5 lb.
5 lb.
9 lb.
1 ¼”, 1 ½”,
2
5 lb.
5 lb.
5 lb.
9 lb.
3” & Larger
5 lb.
5 lb.
9 lb.
17 lb.
1”
Steel Service
from
Steel Main
No Anodes
9 lb.
1 ¼”, 1 ½”,
2
5 lb.
5 lb.
9 lb.
9 lb.
3” & Larger
5 lb.
5 lb.
9 lb.
17 lb.
NOTES: If specified size is not available, use next larger size.
Plastic Service or Insert-Attach 1 Lb. Anode to Steel Riser.**
Reference: Section 12.3.2
* For piping over 400 feet in length, install one anode per 400 ft., evenly spaced.
** For non-anodeless riser, refer to Company for approval.
December 2007
71
Over
400’ *
9 lb.
Anode
9 lb.
Anode
17 lb.
Anode
9 lb.
Anode
9 lb.
Anode
17 lb.
Anode
9 lb.
Anode
9 lb.
Anode
17 lb.
Anode
TABLE 14
GAS FLOW RATES IN CUBIC FEET PER HOUR TO CHECK APPLIANCES
Seconds
For One
Revolution
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
½ Cu. Ft
180
164
150
138
129
120
112
106
100
95
90
86
82
78
75
72
69
67
64
62
60
58
56
55
52
51
50
49
47
46
45
Size of Test Meter Dial
1 Cu. Ft.
2 Cu. Ft.
Cubic Feet Per Hour
360
720
327
655
300
600
277
555
257
514
240
480
225
450
212
424
200
400
189
379
180
360
171
343
164
327
157
313
150
300
144
288
138
277
133
267
129
257
124
248
120
240
116
232
113
225
109
218
106
212
103
206
100
200
97
195
95
189
92
185
90
180
5 Cu. Ft.
1,800
1,636
1,500
1,385
1,286
1,200
1,125
1,059
1,000
947
900
857
818
783
750
720
692
668
643
621
600
581
563
545
529
514
500
486
474
462
450
NOTE: To convert to BTU per hour, multiply by the BTU heating value of the gas used.
(Approx. 1000 BTU per CFH).
December 2007
72
TABLE 14 - Continued
GAS FLOW RATES IN CUBIC FEET PER HOUR TO CHECK APPLIANCES
Seconds
For One
Revolution
41
42
43
44
45
46
47
48
49
50
52
53
54
55
56
57
58
59
60
62
64
66
68
70
72
74
76
78
80
Size of Test Meter Dial
½ Cu. Ft.
44
43
42
41
40
39
38
37
37
35
35
34
33
33
32
32
31
30
30
29
29
29
28
26
25
24
24
23
22
1 Cu. Ft.
2.Cu. Ft.
Cubic Feet Per Hour
88
176
86
172
84
167
82
164
80
160
78
157
77
153
75
150
73
147
71
141
69
138
68
136
67
133
65
131
64
129
63
126
62
124
61
122
60
120
58
116
56
112
54
109
53
106
51
103
50
100
48
97
47
95
46
92
45
90
5 Cu. Ft.
440
430
420
410
400
391
383
375
367
353
346
340
333
327
321
316
310
305
300
290
281
273
265
257
250
243
237
231
225
NOTE: To convert to BTU per hour, multiply by the BTU heating value of the gas used.
(Approx. 1000 BTU per CFH).
December 2007
73
TABLE 14 - Continued
GAS FLOW RATES IN CUBIC FEET PER HOUR TO CHECK APPLIANCES
Seconds
For One
Revolution
82
84
86
88
90
94
98
100
104
108
112
116
120
130
140
150
160
170
180
½ Cu. Ft.
22
21
21
20
20
19
18
18
17
17
16
15
15
14
13
12
11
11
10
Size of Test Meter Dial
1 Cu. Ft.
2 Cu. Ft.
Cubic Feet Per Hour
44
88
43
86
42
84
41
82
40
80
38
76
37
74
36
72
35
69
33
67
32
64
31
62
30
60
28
55
26
51
24
48
22
45
21
42
20
40
5 Cu. Ft.
220
214
209
205
200
192
184
180
173
167
161
155
150
138
129
120
112
106
100
NOTE: To convert to BTU per hour, multiply by the BTU heating value of the gas used.
(Approx. 1000 BTU per CFH)
December 2007
74
TABLE 15
APPROXIMATE FLOW OF GAS
THROUGH FIXED ORIFICES IN CUBIC FEET PER HOUR
Specific Gravity = 0.60
Orifice
or Drill
Size
3
80
.48
79
.55
78
.70
77
.88
76
1.05
75
1.16
74
1.33
73
1.51
72
1.64
71
1.82
70
2.06
69
2.25
68
2.52
67
2.69
66
2.86
65
3.14
64
3.41
63
3.63
62
3.78
61
4.02
60
4.21
59
4.41
58
4.66
57
4.84
56
5.68
55
7.11
54
7.95
53
9.30
52
10.61
51
11.82
50
12.89
49
14.07
December 2007
Orifice Coefficient = 0.90
Pressure at Orifice – Inches Water Column
3.5
.52
.59
.76
.95
1.13
1.25
1.44
1.63
1.77
1.97
2.22
2.43
2.72
2.91
3.09
3.39
3.68
3.92
4.08
4.34
4.55
4.76
5.03
5.23
6.13
7.68
8.59
10.04
11.46
12.77
13.92
15.20
4
.55
.64
.78
.99
1.21
1.34
1.55
1.76
1.90
2.06
2.39
2.61
2.93
3.12
3.32
3.72
4.14
4.19
4.39
4.66
4.89
5.11
5.39
5.63
6.58
8.22
9.23
10.80
12.31
13.69
14.94
16.28
5
.63
.72
.88
1.11
1.37
1.52
1.74
1.99
2.15
2.33
2.70
2.96
3.26
3.52
3.75
4.28
4.48
4.75
4.96
5.27
5.52
5.78
6.10
6.36
7.35
9.30
10.45
12.20
13.86
15.47
16.86
18.37
6
.69
.80
.97
1.23
1.52
1.64
1.91
2.17
2.40
2.54
2.97
3.23
3.58
3.87
4.11
4.62
4.91
5.19
5.42
5.77
5.95
6.35
6.68
6.96
8.03
10.18
11.39
13.32
15.26
16.97
18.48
20.20
75
7
.73
.84
1.04
1.31
1.61
1.79
2.05
2.32
2.52
2.73
3.16
3.47
3.88
4.13
4.39
4.84
5.23
5.55
5.81
6.15
6.47
6.78
7.13
7.44
8.73
10.85
12.25
14.29
16.34
18.16
19.77
21.60
8
.79
.90
1.10
1.38
1.72
1.91
2.18
2.48
2.69
2.91
3.38
3.68
4.14
4.41
4.68
5.16
5.59
5.92
6.20
6.57
6.91
7.25
7.62
7.94
9.32
11.59
13.08
15.27
17.44
19.40
21.12
23.06
9
.83
.97
1.17
1.47
1.83
2.04
2.32
2.64
2.86
3.11
3.59
3.94
4.41
4.69
4.98
5.50
5.95
6.30
6.59
7.00
7.35
7.71
8.11
8.46
9.92
12.34
13.93
16.25
18.57
20.64
22.48
24.56
10
.88
1.01
1.24
1.55
1.92
2.14
2.44
2.78
3.00
3.26
3.78
4.14
4.64
4.94
5.24
5.78
6.26
6.63
6.94
7.37
7.74
8.11
8.53
8.90
10.44
12.98
14.65
17.09
19.53
21.71
23.65
25.83
TABLE 15 - Continued
APPROXIMATE FLOW OF GAS
THROUGH FIXED ORIFICES IN CUBIC FEET PER HOUR
Specific Gravity = 0.60
Orifice
or Drill
Size
3
48 15.15
47 16.22
46 17.19
45 17.73
44 19.45
43 20.73
42 23.10
41 24.06
40 25.03
39 26.11
38 27.08
37 28.36
36 29.76
35 32.36
34 32.45
33 33.41
32 35.46
31 37.82
30 43.40
29 48.45
28 51.78
27 54.47
26 56.73
25 58.87
24 60.81
23 62.10
22 64.89
21 66-51
20 68.22
19 72.20
December 2007
Orifice Coefficient = 0.90
Pressure at Orifice – Inches Water Column
3.5
16.36
17.52
18.57
19.15
21.01
22.39
24.95
25.98
27.03
28.20
29.25
30.63
32.14
34.95
35.05
36.08
38.30
40.85
46.87
52.33
55.92
58.83
61.27
63.58
65.67
67.07
70.08
71.83
73.68
77.98
4
17.62
18.80
19.98
20.52
22.57
24.18
26.50
28.15
29.23
30.20
31.38
32.99
34.59
36.86
37.50
38.79
40.94
43.83
50.39
56.19
59.50
63.17
65.86
68.22
70.58
72.20
75.21
77.14
79.08
83.69
5
19.88
21.27
22.57
23.10
25.57
27.29
29.50
31.69
33.09
34.05
35.46
37.07
39.11
41.68
42.44
43.83
46.52
49.64
57.05
63.61
67.00
71.55
74.57
77.14
79.83
81.65
85.10
87.35
89.49
94.76
6
21.81
23.21
24.72
25.36
27.93
29.87
32.50
34.81
36.20
37.38
38.89
40.83
42.76
45.66
46.52
48.03
50.82
54.36
32.09
69.62
73.50
78.32
81.65
84.67
87.56
89.39
93.25
95.63
97.99
103.89
76
7
23.31
24.93
26.43
27.18
29.87
32.02
35.24
37.17
38.79
39.97
41.58
43.62
45.77
48.78
49.75
51.46
54.26
58.01
66.72
74.45
79.50
83.59
87.24
90.36
93.47
94.55
99.60
102.29
104.75
110.67
8
24.90
26.62
28.23
29.03
31.89
34.19
37.63
39.70
41.42
42.68
44.40
46.59
48.88
52.10
53.12
54.96
57.95
61.96
71.22
79.52
84.92
89.27
93.17
96.50
99.83
100.98
106.39
109.24
111.87
118.55
9
26.51
28.34
30.05
30.90
33.96
36.41
40.07
42.27
44.10
45.44
47.27
49.60
52.04
55.46
56.55
58.62
61.70
65.94
75.86
84.66
90.39
95.04
99.19
102.74
106.28
107.49
113.24
116.29
119.10
125.82
10
27.89
29.81
31.61
32.51
35.72
38.30
42.14
44.46
46.38
47.80
49.76
52.17
54.74
58.34
59.49
31.55
64.89
69.39
79.80
89.04
95.09
99.97
104.57
108.07
111.79
113.07
119.12
122.33
125.28
132.36
TABLE 15 - Continued
APPROXIMATE FLOW OF GAS
THROUGH FIXED ORIFICES IN CUBIC FEET PER HOUR
Specific Gravity = 0.60
Orifice
or Drill
Size
3
18
75.53
17
78.54
16
82.19
15
85.20
14
87.10
13
89.92
12
93.90
11
95.94
10
98.30
9 100.99
8 103.89
7 105.93
6 109.15
5 111.08
4 114.75
3 119.25
2 128.48
1 136.35
Orifice Coefficient = 0.90
Pressure at Orifice - Inches Water Column
3.5
81.57
84.80
88.77
92.02
94.40
97.11
101.41
103.62
106.16
109.07
112.20
114.40
117.88
119.97
123.93
128.79
138.76
147.26
4
87.56
91.10
95.40
98.84
100.78
104.32
108.52
111.31
114.21
117.11
120.65
123.01
126.78
128.93
133.22
137.52
148.61
158.25
5
97.50
103.14
107.98
111.74
114.21
118.18
123.56
126.02
129.25
132.58
136.44
139.23
142.88
145.79
150.41
156.26
168.64
179.33
6
108.52
112.81
118.18
122.48
124.44
128.93
135.37
137.52
141.82
145.05
149.33
152.56
156.83
160.08
164.36
170.78
184.79
194.63
7
116.04
120.33
126.78
131.07
133.22
138.60
143.97
147.20
151.50
154.71
160.08
163.31
167.51
170.82
176.18
182.64
197.66
209.48
8
123.92
128.52
135.39
139.98
142.28
148.02
153.75
157.20
161.81
165.23
170.96
174.38
178.88
182.48
188.16
195.08
211.05
223.65
9
131.93
136.82
144.15
149.03
151.47
157.58
163.69
167.36
172.26
175.91
182.00
185.68
190.46
194.22
200.25
207.66
224.74
238.16
10
138.78
143.91
151.63
156.77
159.33
165.76
172.13
176.03
181.13
185.03
191.44
195.30
200.36
204.30
210.71
218.44
235.58
250.54
TABLE 16
CASING PIPE SPECIFICATIONS FOR PLASTIC CARRIER PIPE
Plastic Carrier
Pipe Size
Casing
Pipe Size
½”
1”
1”
1 ½”
1 ¼”
2”
2”
3 ½”
4”
6”
Tubing, 6.00 O.D. Welded Carbon Steel, 14 Gauge, A-513, .083 Wall
6”
8”
Tubing, 8.00 O.D. Welded Carbon Steel, 14 Gauge, A-513, .075 Wall
December 2007
Casing Pipe Specification
Note: All pipe listed below is bare pipe
Pipe, Structural Steel, 1”, 1.315 O.D, .133 wall, Electric weld
Pipe, Structural Steel, 1 ½”, 1.90 O.D. x .134 Wall, Electric weld
Pipe, Structural Steel, 2”, 2.38 O.D. x .154 Wall, Electric weld
Pipe, Structural Steel, 3 ½”, 4.00 O.D. x .226 Wall, Electric weld
77
FIGURES
FIGURE 1
December 2007
78
PL
5' Min.
Example C
Example D
Gas Main
Curb
O
r
Max. 5'
Or
Property Line
CL Street
Curb
Property Line
And/or
Meter
Curb stop & box
Consumer service
Multi - family dwelling,
common or divided
basement
Bldg 1
Company main/service
Example B
Typical Service Installations
For Single Buildings Main in Street
Bldg 2
same property
Example A
FIGURE 2
PL
Example C
Example D
PL
5' Max.
PL
5' Min.
25'
Max.
5' Max.
PL
25'
Max.
PL
25' Max.
Example A
Duct
25' Max.
Meter to be located
within shaded area
PL
PL
PL
PL
Gas Main
Curb
CL Street
Meter
Curb stop & box
Consumer service
Company main or service
Electric transformer
or pedestal
Example B
Typical Service & Meter Installations
In New Development
Main in Private Right-of-Way
After September 1995
December 2007
79
FIGURE 3
Building wall
6" Min.
Tamperproof lockstop
Ground clamp for tracerwire
Approved bracket anchored to wall
Approved preformed anodeless
riser
6" Min. to
transition
fitting
Finished grade
18" Min.
Tracerwire #12 plastic coated, solid
copper
Typical Service Riser
For Outside Meter Setting
FIGURE 4
#12 Tracer wire attached
by ground clamp to riser
Anodeless riser
Concrete or asphalt
paving
6" Venting sleeve or
6" opening filled with
pea gravel
18" Min.
Plastic curb
box
Service stop
Plastic pipe
Clamped to
Company
wire
Curb box
base/support
Customer Service using
Plastic pipe
Under Paved Area
December 2007
80
FIGURE 5
6" min
1" Ell
1" Ell's
Swing joint
1" x 2" (min.) Nipple
Insulated
meter bar
1" x 2" Nipple
1" Ell
Caulking or
sealing compound
Insulated end
Meter swivel and nut
Meter
1" x 12" Nipple
Note:
Meter bar furnished by
the customer and installed
by the customer. Meter and
swivels furnished and
installed by the Company
Approx.
27"
Clamp
1" Tamperproof lockstop
(install on side of riser
away from meter)
6" min.
6" Min. to
transition
fitting
Customer to size and
install pipe from outlet
meter to load
# 12 solid copper,
plastic coated
locating wire
Anodeless
riser
Refer to Table 9 for
different pipe sizes
based on capacity
Finished
grade
Outside Meter Setting
Low Pressure
FIGURE 6
9" min
1" Ell's
Swing joint
1" x 2" Nipple
(for 425 & 630 meters
install a 1" x 3" nipple)
1" x 2" (min.) Nipple
Insulated
meter bar
1" Ell
1" x 3" Nipple
Caulking or
sealing compound
Insulated End
1" Regulator
I.R.V.
Meter swivel and nut
Meter
Note:
1" x 10" Nipple
Approx.
27"
Clamp
1" Tamperproof lockstop
(install on side of riser
away from meter)
6" min.
6" Min. to
transition
fitting
Anodeless
riser
# 12 solid copper,
plastic coated
locating wire
Regulator furnished by
the Company and installed
by the customer. Meter and
swivels furnished and
installed by the Company.
Meter bar furnished and installed
by the customer.
Customer to size and install
pipe from outlet of meter to
load.
Refer to Table 9 for
different pipe sizes
based on capacity.
Outside Meter Setting
Medium Pressure
1 PSI to 60 PSI
December 2007
81
FIGURE 7
1" x 2" Nipple
1" 90 Ell & 1" St. Ell
(Swing Joint)
1" x 2" Nipple
Insulated meter bar
Insulated end
1" x 2" Nipple
1" Ell
1" Ell
1" x 2" Nipple
Note:
The Company to furnish:
one - 1" H.P. field regulator
one - 1" service regulator
two - 1" x 5" extra heavy
nipples with 1/4" gage taps
meter and swivels
1" Regulator I.R.V.
Meter swivel and nut
1" x 5" Nipple
extra heavy
Field regulator
250
Meter
1" x 5" Nipple
extra heavy
Approx.
32"
1" Tamperproff 500#
Lube plug stop
Meter bar furnished and
installed by customer.
1/4" Gauge tap
and plug
Customer to size and
install pipe from outlet
of meter to load.
Tracer wire
(if using plastic
pipe)
Anodeless rigid
riser (if using
plastic pipe)
Refer to Table 9 for
different pipe sizes
based on capacity.
Support stake
Finished grade
Regulator and Meter Setting
61 PSI to 250 PSI
High Pressure
FIGURE 8
1" x 2" Nipple
Insulated meter bar
Insulated end
1" x 2" Nipple
1" 90 Ell &
1" St.Ell
1" Ell
1" x 2" Nipple
1" Regulator I.R.V.
Meter swivel and nut
1" x 5" Nipple
extra heavy
1" Field regulator
250
Meter
Note:
The Company to furnish:
two - 1" H.P. field regulator
one - 1" service regulator
three - 1" x 5" extra heavy
nipples with 1/4" gage taps
meter and swivels
1" x 5" Nipple
extra heavy
1" Field regulator
1" x 5" Nipple
extra heavy
1/4" Gauge tap
and plug
Approx.
40"
Meter bar furnished and
installed by customer.
1" Tamperproof 500#
Lube plug stop
Gas company
owned and
installed
Tracer wire
(if using plastic
pipe)
Anodeless rigid
riser (if using
plastic pipe)
Support stake
Finished grade
Customer to size and
install pipe from outlet
of meter to load.
Refer to Table 9 for
different pipe sizes
based on capacity.
Regulator and Meter Setting
Above 250 PSI
December 2007
82
FIGURE 9
1" x 2" (min.) Nipple
Insulated
meter bar
1" x 2" Nipple
1" Ell
1" Ell
1" x 2" Nipple
Insulated end
1" Regulator
I.R.V.
Meter swivel and nut
Meter
1" x 10" Nipple
250
Approx.
27"
Ground clamp
Note:
Regulator furnished by
the Company and installed
by the customer. Meter and
swivels furnished and
installed by the Company.
1" Tamperproof lockstop
6" min.
Anodeless riser
Anodeless riser (optional)
Meter bar furnished and
installed by the customer.
Finished
grade
Customer to size and
install pipe from outlet
of meter to load.
Refer to Table 9 for
different pipe sizes
based on capacity.
Ground clamp
Support stake
# 12 solid copper,
plastic coated
locating wire
Support stake
(or use wall bracket)
Consider using a rigid riser for a free standing
setting
Regulator Meter Setting
With Underground Plastic Houseline
FIGURE 10
Building wall
Ground clamp for tracer wire
Tamperproof lockstop
Approved bracket anchored to wall
Approved anodeless riser
(Required)
6" Min. to
transition
fitting
Protective sleeve
(Recommended)
(Typ.)
Curb box
Curb box and base
Tracer wire
beneath lid
Old service pipe
Plastic pipe
(Typ.)
#12 Tracer wire
Curb stop
End protector bushing
(Typ.)
Ground clamp
Plastic Insert for Outside Riser
December 2007
83
FIGURE 11
Compression gasket
Retainer cup
Steel insert
Adapter nut
Plastic tubing
Gas stop or comp.
ell at service
riser
Gasket
Retainer
End protector bushing
Old service line
Compression nut
Compression gasket
Retainer cup
Compression nut
End compression
bushing
Insulating adapter
Male adapter
Steel insert
Plastic insulator
Compression
gasket
Plastic tubing
Steel washer
Plastic to Steel
Transition Fittings
FIGURE 12
Caulk or sleeve
at building wall
and at pipe
6"
min.
1/2"
min.
1/2"
min.
6"
min.
Steel or plastic pipe
used as sleeve
INSIDE
OUTSIDE
PREFERRED
METHOD - ABOVE GROUND
CAULK
6"
min.
1/2" min.
1/2" min.
Steel or plastic pipe
used as sleeve
INSIDE
OUTSIDE
METHOD - BELOW GROUND
December 2007
84
Gas Line Installation
Through Walls
FIGURE 13
6"
3/4" Vent fitting
Casing sealed
to gas line
Pipe
Approx.
3'
Approx. 6"
Floor
Gound line
Seal to be made by
welding or use of
compression end
seals
Unexcavated
3/4" Pipe
Casing sealed
to gas line
Pipe
Weld
To suit
Casing
Note: Company approval needed
for this method
Approx.
2'
Grout
Weld
3/4"
Thread-o-let
Cased Gas Line Laid
Under Building
FIGURE 14
Curb stop
Protective sleeve recommended
Old service pipe
Plastic tubing or pipe
6" Max.
Grout
Reducing ell
End protector bushing
Service head adapter
Male adapter
primed and taped
December 2007
85
Plastic Insert for
Inside Riser
FIGURE 15
Elbow with vent screen
Unvented space
Vent to outside
Ground line
Inlet riser
6"
Max
Ell
Service head adapter
Nipple
Plastic inserted steel gas
service
Replace existing ell
with reducing tee
Venting of Underground
Casing Through a Confined
Area When Approved
FIGURE 16
Gas main
Curb stop
Vent
1' Max.
Weather-proof
screened vent
Bldg. wall
2' Min.
only
one vent
required
House
Meter inside
or out
Garage
Min. 1" approved fitting
P
L
(SEE DETAIL)
Existing service
used as casing
Insert
DETAIL
Install a one-bolt saddle on
carrier pipe, tap, and install
1" vent pipe
Existing Service Inserted and
Vented Under Unattached
Garage or Outbuilding
December 2007
86
FIGURE 17
Channels for use in residential building where access is not
possible from basement or attic
Removable cover
Concrete floor slab
2" Min.
2" Min.
Recess shall be constructed so that access to the house line is
possible if needed. Channel shall have removal cover or may be
filled with hard mastic or lean grout.
Channels
FIGURE 18
Install all sides of the barricade
at a suitable distance from the
meter set piping and components
to facilitate maintenance and
operation of the set.
Vertical post capped in concrete
Weld
250
36"
Weld
Horizontial piping one
pipe size smaller than
vertical piping
24"
45" Maximum
36"
Post set in concrete
VERTICAL POST SIZE
2"
3"
4"
6"
8"
December 2007
HORIZONTAL PIPE SIZE
1-1/2"
2"
3"
4"
6"
87
Meter Set Barricading
EXHIBITS
December 2007
97
EXHIBIT 1
Responsibility for Gas Piping
The customer owns and has maintenance responsibility for the natural gas piping from the
outside curb valve to all gas appliances, with the exception of the gas meter and regulator (should
one be required). However, Vectren has inspection responsibilities for the portion of pipe from
the curb valve to the outlet of your meter. If a problem is found on this piping during Vectren’s
inspection, Vectren will inform the customer of the need to repair or replace the piping.
Customer piping, from the outlet of the meter to the gas appliances, is subject to potential
hazards of corrosion and leakage. For your safety, all customer gas piping should be periodically
inspected for leaks. If the piping is metallic, it should also be periodically inspected for corrosion.
If an unsafe condition is found, the gas piping will need to be promptly repaired.
To obtain help - A qualified plumber or excavation contractor that meets Department of
Transportation and Public Utility Commission of Ohio regulations can assist you in inspecting and
repairing such pipelines.
When digging near buried gas piping, the piping must be located in advance and digging should
be done by hand.
Call Before You Dig
1-800-362-2764 or 811 24 hours a day, 7 days a week
HOW TO CONTACT US:
www.vectren.com
1-800-227-1376
M-F, 7 a.m. to 7 p.m.
December 2007
98
EXHIBIT 2
WELDER QUALIFICATION CARD
Steel Welder Qualification Permit #:
Oxy-Acetylene:
Expiration Date:
Shielded Metal Arc:
Organization Name:
First Name:
Last Name:
Continuation
Due Date:
Qualification Date:
This person has qualified for the welding
process(es) described on the back of this card.
Gas Metal-Arc:
Continuation
Due Date:
Qualification Date:
A successful requalification/production weld must be made in six (6)
month intervals to maintain qualification. This card is valid only for
welding on Vectren customer owned facilities.
PLASTIC JOINING CARD
000000
ID Number
P.O. Box 200
Evansville, IN. 47702
This card certifies that
John Smith
Employee Name
John Smith Const
Company Name
has successfully completed the Vectren Plastic MECHANICAL
Joining and Installation Training Program
1/3/2007
John Q Smith Jr.
Trainer
Date
Expires One Year From Date
December 2007
99
NOTES
NOTES
OHIO UTILITIES
PROTECTION SERVICE
CALL
48 HOURS
BEFORE YOU DIG
1-800-362-2764
OR
811