Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
TABLE OF CONTENTS
LPG PIPELINE WOKS TECHNICAL SPECIFICATIONS
Table of Contents ……………………………………………………………………………….……...……. Page 1
Part 1 General
………………………………………………………….………………………………… Page 3
1.1 Notes on Drawings
1.2 Applicable Codes, Ordinances, Permits and Fees
1.3 Submittal (shop) Drawings and Data
1.4 Delivery and Storage
1.5 Standard Products/Service Availability
1.6 Safety Requirements
1.7 Record and As-Built Drawing
Part 2 Products
...………………………………………………………….………………………………… Page 7
2.1 Piping
2.2 Fittings
2.3 Valves
2.4 Sway Bracing
2.5 Pipe Hangers
2.6 Support on Risers
2.7 Pipe Sleeves
2.8 Pipe Painting, mark or label
2.9 Stub-out
2.10 Gas Meter
2.11 Regulator
LPG Pipeline Works
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
2.12 Pigtail Hose
2.13 Gas Detectors
Part 3 Execution
...………………………………………………………….………………………………… Page 11
3.1 Substitution and testing of materials
3.2 Site condition
3.3 Conduct of work
3.4 Installation
3.5 Defective work
3.6 Acceptance test
3.7 Defects Liability Period
3.8 Warranty
3.9 Governments permits, inspection
3.10 Acceptance of the work
LPG Pipeline Works
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
LPG PIPELINE WORKS
PART 1. GENERAL
Unless otherwise specified, the Contractor shall furnish all materials, tools,
equipment, apparatus, appliances, accessories, transportation, labor and supervision
required for the complete installation and testing of the LPG pipeline ready for use in
accordance with the best practice of the LPG pipeline Trade as listed herein but not limited to
the following:
a. The Contractor is required to refer to all architectural, structural, plumbing/Sanitray,
mechanical, electrical and interior designs and investigate all possible interference
and conditions affecting his work.
b. All work shall comply with the pertinent provisions of the Philippine Mechanical
Engineering Code, The Fire Code of the Philippines – Revised Implementing Rule and
Regulation Revised 2019 and all related codes and standards.
c. Supply and installation of all pipes, valves, fittings, hangers, supports and other
accessories.
d. Testing and commissioning of all equipment and items installed.
1.1. Notes on Drawings
1.1.1
The Drawings show the general arrangement all equipment, ducting and
piping. However, where local and/or actual conditions at the jobsite necessitate a
deviation or rearrangement, the Contractor shall prepare and submit the new
arrangement for the Architect's approval.
1.1.2
Small scale Drawings do not possibly indicate all offsets, fittings and other parts
of the system required. The Contractor shall arrange such work accordingly, furnishing
such fittings, traps, valves and accessories as may be required to meet such conditions.
1.2 Applicable Codes, Ordinances, Permits and Fees
The work covered in this contract is to be installed according to the specs, codes, ordinances
and requirements of the following:
a. The Philippine Mechanical Engineering Code
b. The Fire Code of the Philippines
LPG Pipeline Works
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
c. National Fire Protection Association (NFPA)
d. All other applicable local codes and ordinances as applicable.
All construction permits and fees required for the work shall be obtained by and at the
expense of the contractor. The contractor shall furnish the Owner final certificates of
inspection after the completion of the work.
1.3 Submittal (shop) Drawings and Data
Each submittal is to be complete and in sufficient detail to allow ready determination of
compliance with contract requirements. Submit shop drawings, manufacturer’s data and
certificates for equipment, materials and finish, and pertinent details for each system as
specified in each individual section, and obtain approval from the Engineer before
procurement, fabrication, or delivery to the job site. Approval of submittal shall not relieve
the Contractor of the responsibility of inspecting such material or equipment for defects or
non-conforming to the specifications. Partial submittals are not acceptable and will be
returned without review. Submittals shall include the manufacturer’s name, trade name,
catalog model or number, nameplate data, size, layout dimensions, capacity, project
specification and paragraph reference, applicable industry, and technical society publication
references, years of satisfactory service, and other information necessary to establish
contract compliance of each item the Contractor proposes to provide. Photographs of existing
installations and data submitted in lieu of catalog data are not acceptable and will be returned
without approval.
1.3.1 Shop Drawings: Drawings shall include floor plans, sectional views, wiring
diagrams, and installation details of piping, and spaces identifying and indicating
proposed location, layout and arrangement of items of equipment, control panels,
accessories, piping, and other items that must be shown to assure a coordinated
installation. Drawings shall indicate adequate clearance for operation, maintenance,
and replacements of operating equipment devices. If equipment is disapproved,
drawings shall be revised to show acceptable equipment and be resubmitted.
1.3.2 Manufacturer’s Data: Submittals for each manufactured item shall be
manufacturer’s descriptive literature of cataloged products, equipment drawings,
diagrams, performance and characteristic curves, and catalog cuts.
A. Seamless Black Iron Pipe Schedule 80
B. Fittings
C. Valves
D. LPG Tanks
E. Pressure Gauge
F. Hanger and Support
G. Gas Meter
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
H. Pigtail hose
I. LP/HP Regulator
J. Gas Detectors
1.3.3 Manufacturer’s Installation Instructions: Where installation procedures or any
part thereof are required to in accordance with the recommendations of the
manufacturer of the material being installed, printed copies of these
recommendations shall be furnished prior to installation. Installation of the item will
not be allowed to proceed until the recommendations are received. Failure to furnish
these recommendations can be cause for rejection of the material.
1.3.4 Field Test Procedure: The content will be the step by step procedure on how
the LPG pipeline to be test.
1.4 Delivery and Storage
Equipment and materials shall be handled, stored, and protected to prevent damage before
and during installation in accordance with the manufacturer’s recommendations. Damaged
or defective items shall be replaced.
1.5 Standard Products/Service Availability
1.5.1 Materials and equipment shall be standard products of a manufacturer
regularly engaged in the manufacture of such products, which are of similar material
design and workmanship. The standard products shall have been in satisfactory
commercial or industrial use for two years prior to bid opening.
1.5.2 Service Support: The equipment items shall be supported by service
organizations. The Contractor shall submit a certified list of qualified permanent
service organizations for support of the system, which includes their addresses and
qualifications. These service organizations shall be reasonably convenient to the
equipment installation and able to render satisfactory service to the equipment on a
regular and emergency basis during the warranty period of the contract.
1.6 Safety Requirements
Belts, pulley, chains, gears, couplings, projecting setscrews, keys, rotating parts, and other
power transmission apparatus, located so that any person can come in close proximity
thereto, shall be fully located or properly guarded. Points of operation, in going nip points,
and machinery producing flying chips and sparks shall be guarded.
LPG Pipeline Works
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
1.7 Record and As-Built Drawing
Provide Record Drawings, which clearly show all deviation of installation from contract
drawings. Record drawings shall be maintained at the job site. Show all deviations in red ink.
After completion, but before final acceptance of the work, transfer the information from the
Record Drawings to As-Built Drawings. Furnish a complete set of As-Built Drawings of each
system for record purposes. The As-Built Drawings shall be reproducible and shall be of the
same size as the contract drawings.
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
PART 2. PRODUCTS
2.1 Piping
2.1.1 Where American Standards are specified, other approved national or local
standards may be acceptable, provided copies of these standard Specifications are
forwarded to the Engineer for his written approval.
2.1.2 Seamless Black iron, schedule 80 pipes
2.1.3 All inside piping shall be installed by means of screwed or flanged fittings.
Flanged joint shall be used at all risers and provided with 1.6 mm thick long fiber
asbestos, cross laminated gasket. Torch cutting shall not be permitted as means of
modifying or repairing LPG pipeline.
2.1.4 All welding shall be "shop welding” only and shall be done by a certified TESDA
NCII using electric arc welding process.
2.2 Fittings
LPG pipeline fitting shall be extra heavy pattern. Whenever a change in pipe size is
made, one piece of bushing reducing /increaser fitting shall be used. Provide
mechanical grooved couplings flexible connector at each main feed line of every floor
just after the riser and along the ceiling line.
Steel pipe flangers mating with steel equipment flangers shall have the same facing as
mating flange.
Screwed union shall not be used on pipes larger than 50 mm (2"). Couplings and unions
of pipes other than screwed type shall be of types approved specifically for LPG
pipeline used.
2.3 Valves
2.3.1 Shall be of the same manufacture for each class of piping and as such as possible,
for the entire project. Valves shall permanently bear affixed stamp or tag indicating
manufacturer, catalog number, pressure and temperature ratings of gate valve,
angle valves, check valves, pressure relief, gas shut off valve with all cast iron body
with bronze trim.
2.3.2 Furnish all valves and accessories material necessary for piping not shown on
drawings as follows:
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
a. Connections to metering instruments and controls including pressure
gauges, thermometer, controllers, traps and appurtenances required for
proper functioning on instruments in controls.
b. Temporary valves and accessories required for placing equipment into initial
service.
2.3.3 Valves seats shall be renewable except for forged steel and high pressure cast
steel valves where manufacturer’s standard integral seats.
2.3.4 All valves shall be approved by Factory Matual and Underwriters Laboratories,
Inc. (UL Listed)
2.3.5 Where required and not noted, provided chain-wheel operators, extending chain
for chain operated valves to which 1.2 meters of nearest floor or operating platform
valves.
2.3.6 Provide floor stand with flanged faces for bolting to floor or platforms and other
special devices.
2.3.7 Provide extension stems, universal joints stem guide bearings and other
accessories required to locate floor stands in convenient location with interference
with other equipment, piping or building parts.
2.4 Sway Bracing
Shall be steel flat bars, structural grade 7mm minimum thickness with corrosion
protection; shape/type.
2.4.1 Sway Bracing Installation
a. Adequate sway bracing shall be provided to oppose longitudinal or
transverse pipe movements.
b. Lateral bracings shall withstand a force equal to 50% of the weight of the
gas contained in piping, valves and fittings.
c. Piping anchorage shall not be secured on two (2) dissimilar parts of the
building which will move differently.
2.5 Pipe Hangers
Shall be steel flat bars, structural grade 7mm minimum thickness with corrosion
protection shape as shown on plans and 13mm diameters bars with corrosion
protection.
2.15.1 Hangers Installation
LPG Pipeline Works
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
a. Approved inserts may be used for the support of hangers, anchorages in
concrete Expansion Shield should be used in a horizontal position on the sides
of concrete beams and shall be above the bottom reinforcements.
b. Increaser couplings shall be attached immediately adjacent to the expansion
shields.
c. Maximum distance between hangers shall be 3.65 meters (12’) for sizes
25mm (1”). Provide at least on hanger for each length of pipeline.
d. All portion of pipes that have contacts to “U” bolt support, the pipe must be
wrapped with rubber tape.
2.6 Support on Risers
Shall be adequately supported either by attachments directly to the riser or by hangers
located on the horizontal’s connections close to the risers. Supports shall be provided
at the ground level and at each third level and at the top most level of the riser.
All portion of pipes that have contacts to “U” bolt support, the pipe must be wrapped
with rubber tape.
2.7 Pipe Sleeves
Shall be cast iron for through footings, cast iron or standard weight iron pipe for below
grade and steel pipe for above grade.
2.7.1 Pipe Sleeves Installation
Minimum clearance between the pipe and sleeve shall not be less than 25 mm.
(1") for pipes, 25mm. (1") to 89 mm. (3-1/2") and 50 mm. (2") clearance for
pipes 100 mm. (4") and larger. The clearance between pipes and sleeves shall
be filled with non-combustible flexible materials such as asbestos rope and
furnished with semi-hardening mastic flush. Floor sleeves shall extend at least
76 mm. (3") above the top of the wearing surface.
2.8 Pipe Painting, mark or label
2.8.1 Painting of pipeline using Boysen QDE 2 coats primer and 2 coats Boysen QDE
Lemon Yellow or Caterpillar Yellow.
2.8.2 The gas pipeline shall be mark or label with “LPG” in black background and white
font (letter) or black font (letter). The marking should be either 6, 3 or 9 O’clock of the
pipe cross-section.
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
2.9 Stub-out
Fabrication and installation of ¾” diameter Sched 80 Stub-out to equipment. Stub-out
shall tap at the top or side of Pipe (not at the bottom of pipe). Provide bushing reducer
for equipment that need ½” stub-out.
2.10 Gas meter
Installation of Gas Meter including fabrication of housing and supports. Gas Meter
shall be located accessible and reachable (within the Gas Farm).
Gas Meter shall be provided with Isolation Valves (Upstream and Downstream) and YStrainer upstream. Upstream valve is not readily reachable to discourage frequent
open/close of valve.
Each kitchen room should have a different gas meter.
2.11 Regulator
Installation of HP Regulator with 1” inlet/outlet connection and Fisher LP Regulator
with 1” inlet/outlet.
2.12 Pigtail hose
Manifold Pigtail Hose Stub-out shall be ½” Diameter Nipple Sched 80.
Manifold Pressure Gauge Stub-out shall be ¼” Diameter Nipple Sched 80.
Contractor to supply Flange (Slip-on Raised Faced), Union Patente, and Gasket Spiral
Wound Gasket (common brand is Flexitallic), LPG Pigtail Hose (1/2” x POL), Ball Valves,
Pressure Gauge.
2.13 Gas Detectors
Installation and connection of a 3-channel GLD (Gas Leak Detector) system with 2 or 3
leak detectors.
Auto shut-off valve to be installed on the downstream valve of the gas meter. Confirm
with customer actual location of Leak Detectors and Controller.
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
PART 3. EXECUTION
3.1 Substitution and Testing of Materials
3.1.1
Intended materials substituted from those originally specified shall be
accepted only after a formal request for substitution, accompanied by:
A. Reasons for substitutions;
B. Certificate of test indicating quality, compared to those originally specified.
C. Cost comparisons with material originally specified. Requests shall be
submitted to the Architect for evaluation at least 15 working days before
installation of subject material is due, or at least 7 days before opening of bids.
3.1.2
Cost of testing of materials, whether on originally specified items or on
substitution, shall be to the account of the Contractor.
3.1.3
Results of tests shall be submitted to the Architect for evaluation at least 15
days before the material is due for installation on the job.
3.2 Site Condition
The contractor shall be deemed to have visited the site and have acquainted himself
with the existing site conditions, means of access and take into account any feature
that may affect his tender. Claim for his neglect to do or out of any misunderstanding
on his part on these conditions shall not be entertained.
3.3 Conduct of Work
The contractor shall employ on the job at all times a competent superintendent
Licensed Engineer who shall be responsible for the progress and execution of the
work.
3.4 Installation
3.4.1 The mechanicals for this work shall cooperate with the mechanics for all other
work in the building. The installation of piping and shall be coordinated with existing
conditions and all other construction, including but not limited to, the ductwork,
piping, conduits, lighting fixtures, acoustical ceilings, and building structures. Any
conflicts that occur with the work of other trades as a result of the lack of coordination
by the installers of the LPG system shall be adjusted at the expense of the LPG system
contractor and as required and approved by the Engineer/Architect.
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
3.4.2 Arrange with Contractors of other trades for installation of built-in items,
blocking and additional necessary supports.
3.4.3 Sleeves shall be furnished and installed wherever pipe passes through walls,
partitions or floors, and the space between the pipe and sleeve shall be packed.
Provide sleeves having an internal diameter 1” larger (unless specifically indicated
otherwise) than the outside diameter of the pipe.
3.4.4 In placing sleeves, inserts, anchor bolts and any other material to be embedded
in masonry and concrete or built into the structure, the Contractor shall cooperate
with all other trades and shall consult with the Architect in regard to their exact
location whenever there is any interference with structural members.
3.4.5 The Contractor will be held responsible for locating and maintaining in proper
position, sleeves, inserts and anchor bolts supplied and/ or set in place by him. In the
event that failure to do so requires cutting and patching of finished works, it shall be
done at the Contractor’s expense.
3.5 Defective Work
If the inspection and test show any defect, such defective work or material shall be
replaced and the test shall be repeated until such is satisfactory to the Owner.
All repairs shall be made with new material at the expense of the Contractor.
3.6 Acceptance Test
The contractor shall conduct tests in the presence of inspector or authority having
jurisdiction for LPG pipeline.
Pneumatic Test
•
•
•
•
Pressure testing of all line using Nitrogen N2 as the medium. Using of any other
medium must be consulted first with BSP-PDMD.
Vendor must pressure test sectional, especially for those areas that might be close
prior to conduct integrated test.
Required pressure for the Main Gas Distribution line is 150 psi with holding time of 2
hrs minimum. Gradually induce the pressure into the pipe and monitor pressure
gauge. Make sure that pressure gauges are in good working condition. Double or
redundant pressure gauge is advisable.
Required pressure for the Manifold is 150 psi with holding time of 2hrs. Gradually
induce the pressure into the pipe and monitor pressure gauge. Make sure that
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Project: Proposed Renovation and Conversion of Metropolitan Museum of Manila into a One-Stop Shop Building
Location: BSP Main Complex, Roxas Boulevard., Malate, Manila
pressure gauges are in good working condition. Double or redundant pressure gauge
is advisable
NOTE: Prior to pressure testing of the LPG line, vendor should come up with a checklist
to monitor that all stub-out valves and purging points must be closed and “plugged”.
Pressure testing shall be witnessed with BSP-PDMD and or Customer representative
prior to release the pressure. Line pressure must be maintained to 5-10 psi prior to
purging activity.
Note: Appurtenance like regulator, gas meter and other precision devise shall not be
included during pneumatic testing. Testing shall be witnessed by BSP-PDMD and or
customer representative
3.7 Defects Liability Period
During the DLP and Warranty, the contractor shall ensure proper maintenance of the
equipment including replacement of any part of the system such pipes, valves,
detectors and control panel or consumables such as nitrogen gas for flushing as
necessary for the proper operation.
LPG Pipes
Valves
Gas leak Detector
Gas leak Panel
Checking for leaks, every 6 months
from start of the DLP and on the 6th
and 11th month of the warranty
period.
3.8 Warranty
Warrant the system, labor, materials and equipment supplied by the Contractor for a
period of One year after completion and acceptance of the system. Should any
equipment or material fail within this period, including loss, replace or
repair that item at no cost to the Owner.
3.9 Governments Permits, Inspection
The Contractor is responsible for obtaining the necessary government permits and
shall pay the corresponding fees.
3.10
Acceptance of the Work
The BSP-PDMD will witness formal tests and approve all systems before they are
accepted.
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