FUEL SYSTEM SPECIFICATIONS
A. Double-Wall FRP Tanks for Fuel Storage
GENERAL
Quality Assurance
A. Acceptable Manufacturers: Xerxes Corporation, Containment Solutions
B. Governing Standards, as applicable:
1. Underwriters Laboratories (UL) Standard for Safety 1316, File MH 9061 for storage of flammable
liquids. A UL label shall be attached to each tank.
2. National Fire Protection Association (NFPA) Standards:
NFPA 30: Flammable and Combustible Liquids Code
NFPA 30A: Automotive and Marine Service Station Code
NFPA 31: Installation of Oil-Burning Equipment.
3. City of New York Department of Buildings M.E.A., Division #161-89-M.
4. Los Angeles Fire Department.
PRODUCTS
2.01 Double-Wall Fiberglass Reinforced Plastic (FRP) Underground Storage Tanks
A. Loading Conditions – Tank shall meet the following design criteria:
1. Internal Load – Tank shall withstand a 5-psig air-pressure test with 5:1 safety factor. Contractor
shall individually test tanks for leakage prior to installation. Maximum test pressure is 5 psig.
2. Vacuum Test – To verify structural integrity, every standard 10'-diameter tank and smaller shall be
vacuum tested by the manufacturer at the factory to 11.5" of mercury.
3. Surface Loads – Tank shall withstand surface H-20 axle loads when properly installed according
to manufacturer's current Installation Manual and Operating Guidelines.
4. External Hydrostatic Pressure – Tank shall be capable of being buried in ground with 7' of
overburden over the top of the tank, the hole fully flooded and a safety factor of 5:1 against
general buckling.
5. Tank shall support accessory equipment – such as heating coils, drop tubes, submersible pumps
and ladders – when installed according to tank manufacturer’s current Installation Manual and
Operating Guidelines.
B. Product Storage
1. Tank shall be capable of storing petroleum products with specific gravity up to 1.1.
2. Tank shall be vented to atmospheric pressure.
3. Tank shall be capable of storing products identified in the manufacturer’s current standard limited
warranty.
C. Materials
1. Tank shall be manufactured with 100% resin and glass-fiber reinforcement. No sand fillers.
D. Tank Dimensions (Refer to literature on gallonage.)
1. Tank shall have nominal capacity of _____ gallons.
2. Tank shall have nominal outside diameter of _____ feet.
E. Interstitial Space
1. Tank shall have a space between the primary and secondary walls to allow for the free flow and
containment of leaked product from the primary tank. The space also allows the insertion of a
monitoring device through a monitoring fitting.
ACCESSORIES
A. Optional Anchor Straps
1. Straps shall be FRP anchor straps as supplied by tank manufacturer.
2. Number and location of straps shall be specified in current literature by tank manufacturer.
B. Manways
1. All manways shall be flanged and 22" I.D., complete with UL-listed gaskets, bolts and covers.
(30" and 36" I.D. manways are also available on certain larger tanks.)
2. Location is shown on tank drawings.
3. Optional manway extensions shall be FRP and 24" long.
C. Optional Fill Tubes
1. Fill tubes shall be FRP, 4"-diameter, with a 6" x 4" double-tapped reducer bushing, and include a
6" NPT fitting. Tubes shall terminate a minimum of 4" from the bottom of tank (a minimum of 6"
for a 12'-diameter tank).
D. Gauge Plates
1. Gauge plates shall be installed under each service fitting and manway opening.
E. Optional Heating Coils
1. Optional heating coils shall be installed in a separate 22" manway and shall be as supplied by tank
manufacturer.
F. Optional Ladders
1. Ladders shall be the standard ladder as supplied by tank manufacturer (aluminum, carbon steel or
fiberglass).
G. NPT Threaded Fittings
1. All standard threaded fittings shall be half-couplings and shall be 4"- or 6"- diameter. Reducers are
to be used for smaller sizes where shown and provided by contractor.
2. Strength – NPT fittings shall withstand a minimum of 150 foot-pounds of torque and 1,000 footpounds of bending, both with a 2:1 safety factor.
H. Monitor Fittings
1. Each monitor fitting shall consist of a 4" NPT fitting on the tank. Tanks with a hydrostatic
monitoring system do not have a monitor fitting.
TESTING & INSTALLATION
3.01 Testing
A. Tank shall be tested according to the Installation Manual and Operating Guidelines for Single-Wall and
Double-Wall Fiberglass Underground Storage Tanks in effect at time of installation.
3.02 Installation
A. Tank shall be installed according to the Installation Manual and Operating Guidelines for Single-Wall
and Double-Wall Fiberglass Underground Storage Tanks in effect at time of installation.
B. Contractor shall be trained by the tank manufacturer, the state or other approved agency.
WARRANTY
4.01 Warranty
A. Warranty shall be manufacturer's limited warranty for double-wall underground petroleum tanks in
effect at time of purchase.
FUEL OIL SPECIALTIES AND FILL TERMINAL
a. Fill Box / Grade Level: Fill line to be terminated at grade level with a water tight fill box
with spill container. Fill / spill container shall be similar to a model #705 as manufactured
by Franklin Fueling Systems.
b. Fill Box / Grade Level NYC: Fill line to be terminated at grade level with a water tight fill
box approved by the City of New York. Fill / spill container shall be similar to a model
#705 as manufactured by Franklin Fueling Systems.
c. Fill Box / Wall mounted: When fill terminal is to be wall mounted, a stainless steel in wall
spill container shall be provided with a spill containment capacity of no less than 3½ gallons
and a ¾” drain which is to be piped to the fill line or directly to the main storage tank being
filled. An overfill alarm shall be mounted inside the cabinet for notification when the tank
has reached 90% full capacity. The alarm horn can be silenced by the operator but the alarm
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light will stay active until the level in the tank goes below the 90% level. The horn can also
be programmed to silence automatically after 90 seconds. All devices within the cabinet
shall be 24vdc or less and shall be wired “intrinsically safe” back to the main control panel
or gauging system which provides the power to operate the alarm. Intrinsically safe barriers
will be provided at the main control panel or gauging system. If a non-intrinsically safe
gauge or high level float is used, the fill box alarm panel will be supplied with an
intermediate panel to isolate the panel from the high level switch. This panel will accept
120VAC power, provide the necessary barriers, and feed 24VDC to the device and the alarm
panel. The in-wall fill / spill container and alarm panels shall be as manufactured by ISP
Fuel Systems.
d. Fill Station: Provide a free standing fuel fill station (when shown on drawings) for tank
filling as part of an integrated system of controls, level monitoring, and leak detection. Fill
Box shall be provided with a NEMA-4 Fill / Gauging Control Panel for operation and
monitoring of fill line motorized ball valves. Fill / Gauging Control Panel shall also monitor
levels and leaks at the main tanks.
1) Fill / Gauging panel shall be mounted to the fill box and provide an overfill alarm
notification when either tank has reached 90% full capacity. The alarm horn can be
silenced by the operator but the associated alarm light (Tank #1, Tank #2) will stay
active until the level in the tank goes below the 90% level. The horn can also be
programmed to silence automatically after 90 seconds.
2) Tank Fill / Gauging panel will continuously display levels in each tank.
3) Fill / Gauging Panel & Fill Box shall be as manufactured by ISP Fuel Systems.
e. Foot Valve: Provide a single poppet foot valve on the pump suction line from the main fuel
oil storage tank to maintain the prime in this line. Foot valves should be mounted 6” from
the bottom of the tank. A foot valve extractor fitting shall be supplied for ease of foot valve
removal. Foot valves are not required when using submersible pumps.
f.
Anti-siphon Valve: An anti-siphon valve shall be installed at the highest point above the
main storage tank. The valve shall have an adjustable spring range to coincide with the
height above the lowest point in the piping on the supply line from the tank. An anti-siphon
valve will not be required if the elevation of the piping to the pumps does not go below the
top of the tank. Anti-siphon valves on above ground storage tanks with submersible pumps
will be normally closed solenoid valves powered open on a pump start. A full line size
manual bypass shall be piped around each solenoid valve.
g. Fusible Link Valve: A fusible link valve shall be installed on the supply line to the pumps
and on the supply to the emergency generator and where shown on the drawings. Valves
shall be supplied with a fuse link rated to melt at 165 degrees F. Valves are to be equal to
ISP Fuel Systems Model #110.
h. Vent Hood: Vent hood shall be cast iron, galvanized with 30 mesh screen. Vent shall be the
full size of the vent line or in accordance with NFPA 30 or local codes. Vent shall be equal
to ISP Fuel Systems #4000 series.
FUEL OIL PUMPSET
Provide a factory assembled packaged fuel oil pump set with components mounted on a steel
base support. Pumpset shall be as manufactured by ISP Fuel Systems. (866-383-3481). The set
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shall consist of the following components:
a. Pumps: Fuel oil pumps shall be rotary gear type of the capacity shown on the Drawings.
Each pump shall be capable of supplying the full, required flow as noted. Pumps shall be
mounted on a steel channel base directly connected to the motors.
b. Strainer: One duplex fuel oil strainer, sized to handle the required flow through the pumps.
Strainer shall have one piece cast iron body and shall be suitable for pressure to 200 psi.
Strainer baskets shall be fabricated of stainless steel and shall come complete with lever
wrench handle. Strainer shall be equal to Kraissl Model #72.
c. Differential Pressure Switch: One differential pressure switch shall be provided to indicate
when the strainer baskets need to be cleaned. Switch shall be piped to both sides of the
strainer. Switch shall activate when differential pressure across strainer exceeds 3psi and
shall be adjustable from 0 to 15psi. Switch shall be wired to ISP Fuel Oil Control Panel for
indication and alarm.
d. Relief valves: Two fuel oil pump relief valves shall be cast iron with components compatible
with fuel oil. Valves shall have adjustable spring set to relieve at 20% above the head
pressure on the pumps. Relief valve are to be piped back to the return line or directly to the
fuel oil storage tank. Relief valves shall be equal to Fulflo Model #VJ.
e. Ball Valves: Ball valves shall be provided on suction and discharge side of the pumps.
Valves shall be 600psi rated threaded bronze with plated steel ball. Valves shall be equal to
Apollo #70 Series.
f.
Pressure gauges: Two 4" liquid filled pressure gauges having a dial range of approximately
twice the pump head pressure. Case shall be stainless steel. Movement shall be brass with
phosphor bronze bourdon tube. Gauges shall be placed on discharge side of each pump.
g. Compound Gauges: One 4" liquid filled compound gauge having dial range from 30" of
vacuum to 30psi. Case shall be stainless steel. Movement shall be brass with phosphor
bronze bourdon tube. Gauge shall be on discharge side of strainer.
h. Check Valves: Soft seated switch check valves with cast bronze body shall be located on the
discharge side of each pump. Valves shall be Nibco Model T413Y or equal.
i.
Flow switches: One flow switch shall be mounted at the discharge of each pump and factory
wired to the ISP Fuel Oil Control Panel. Switches will sense flow from each pump and
initiate pump alternation with each call for oil as well as “lead-lag” operation upon failure of
either pump. Flow switches shall be ISP Fuel Systems Model #V6LF for “low flow”
detection.
j.
Leak switch: A leak switch shall be mounted within the walls of the pump pan and protected
against physical damage during shipment and normal operation. Switch shall be ISP Fuel
Systems #L170 and wired directly into the ISP Fuel Oil Control Panel for monitoring and
alarm indication.
Acceptable Manufacturer of pumpset:
ISP Fuel Systems. or engineer approved equal.
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SUBMERSIBLE TURBINE PUMPS
The entire pumping assembly shall have UL listing and shall meet all requirements of UL
Standard UL 79.
The pump discharge head and manifold assembly shall be manufactured from ASTM A48
Class 25 gray iron.
The pump shall be available in 1/3, 3/4, 1 1/2, and 2 horsepower sizes and shall be
manufactured to the proper length as determined by the tank diameter, type of tank, and bury
depth.
An optional variable length telescopic feature shall be provided such that the length of the
pump is field adjusted at the job site to fit the specific pump length required. This variable
length option shall be available in three variable length ranges, referred to as VL1, VL2 &
VL3, where the VL2 model will fit 94% of all known installations.
The pump motor shall have a thermal over-current overload protector with automatic reset.
The pump motor assembly shall be clearly marked with pertinent information including
Model, Horsepower, Voltage, Phase, and Manufacturer.
Fixed speed Single-phase pump motors shall be a permanent split phase capacitor, and shall
incorporate a 15 F capacitor for 1/3, 3/4, and 1 1/2 horsepower motors and a 40 F
capacitor for 2 horsepower motors.
The pump shall be UL listed for blend concentrations of:
Standard models:
0% - 15% ethanol or methanol and gasoline
20% MTBE with 80% gasoline
20% ETBE with 80% gasoline
17% TAME with 83% gasoline
AG (alcohol/gasoline) models:
0% - 15% ethanol or methanol and gasoline
20% MTBE with 80% gasoline
20% ETBE with 80% gasoline
17% TAME with 83% gasoline
Also recommended for use with Biodiesel fuels greater than B5
The pumping unit shall not incorporate any flexible diaphragms and all sealing shall be
accomplished with O-rings or UL recognized gaskets.
The pump shall be rated to operate between –40ºF (-40ºC) and 104ºF (40ºC) with nongelled product.
Acceptable Manufacturers:
FE Petro Inc
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FUEL SYSTEM CONTROLS
MASTER CONTROL PANEL
Provide a Master Control Panel to operate the pumpset or submersible pumps described
elsewhere in this specification and to monitor alarm conditions and status as outlined below.
The Master Control Panel will communicate with all Day Tank Panels, Tank Gauging-Leak
Detection Panels, Filtration System Control panels, remote annunciator panels, and Fill Station
Control Panels (as applicable for the project). All alarms and status for the entire fuel transfer
system will be available at the Master Panel. Control cabinet shall be inspected and certified to
UL-508A as manufactured by ISP Fuel Systems. (866-383-3481) and shall include the
following:
I. Control cabinet to include:
1) Programmable Logic Controller (PLC) to accomplish the necessary functions and
alarms.
2) H-O-A Switches - illuminated to indicate pump run
3) Power on light
4) Alarm horn
5) Alarm silence / reset pushbutton
6) Control Power transformer (as required)
7) Motor Starters
8) Power disconnect
9) Circuit breakers (fuses not allowed)
10) Color Touch Screen – for system operation, status and alarm conditions. (Similar
to ISP Fuel Systems Model #E-1063).
11) Intrinsic Safety Barriers – on all inputs where devices are submerged in fuel oil or
exposed to vapors (ie wall fill box).
NOTES:
 All control cabinet components shall be DIN rail mounted.
 Wiring shall be run in channel and all field terminations shall be made in one clearly labeled
terminal strip.
 All controls shall be 24vdc or less.
II. System Alarms (not limited to):
a. Main Tank High Level (for each main tank)
b. Main Tank Low Level (for each main tank)
c. Main Tank Leak (for each main tank)
d. Day Tank High Level (for each day tank)
e. Day Tank Low Level (for each day tank)
f. Day Tank Leak (for each day tank)
g. Piping Containment Leak
h. PumpFailure (for each pump)
i. Pumpset Leak (for each pumpset)
j. Strainer Clogged (for each strainer)
Note: All fuel system alarms and status shall be available for monitoring by the BMS via
Modbus RS-485 communication.
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PUMP CONTROLS
Each submersible pump will have a pump starter panel in a NEMA-4 weatherproof enclosure and
will contain the following components:
1)
2)
3)
4)
5)
Single 208-220VAC power feed
Power disconnect
Power ON light
Overload & contactor
Hand-Off-Auto switch
DAY TANK CONTROL PANEL
Provide a Day Tank Control Panel for each day tank to monitor alarm conditions and status as
outlined below. The Day Tank Control Panel(s) will communicate with the Master Control
Panel via RS-485. In addition, a hardwired run signal will be provided to the Master Control
Panel whenever the associated day tank is calling for fuel. All alarms and status the day tank
will be available at the Master Panel. Control cabinet shall be inspected and certified to UL508A as manufactured by ISP Fuel Systems, (866-383-3481) and shall include the following:
I. Control cabinet to include:
1) Programmable Logic Controller (PLC) to accomplish the necessary functions and
alarms.
2) Motor Starters & H-O-A Switches for return pump (if required). H-O-A’s shall be
illuminated to indicate a pump running condition.
3) Power on light
4) Alarm horn
5) Alarm silence / reset pushbutton
6) Control Power transformer (as required)
7) Power disconnect
8) Circuit breakers (fuses not allowed)
9) Color Touch Screen – for system operation, status and alarm conditions. (Similar to ISP
Fuel Systems Model #E-1043).
10) Intrinsic Safety Barriers – on all inputs where devices are submerged in fuel oil or
exposed to vapors (ie floats).
NOTES:
 All control cabinet components shall be DIN rail mounted.
 Wiring shall be run in channel and all field terminations shall be made in one clearly labeled
terminal strip.
 All controls shall be 24vdc or less.
II. System Alarms (not limited to):
a. Day Tank High Level (for each day tank)
b. Day Tank Low Level (for each day tank)
c. Day Tank Leak (for each day tank)
REMOTE ANNUNCIATOR PANEL
A Remote Panel to annunciate system status & alarms will be mounted in the building
Engineering office, Maintenance, or other location as indicated on the drawings. Annunciator
panel will include a model #E-1043 display, alarm light, alarm horn, and alarm silence
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pushbutton. The remote panel will be connected to the main fuel oil control panel via an RS-485
communications cable and will display the same status & alarm indicators as the main panel.
Annunciator panel is to be as manufactured by ISP Fuel Systems.
Acceptable Manufacturers / Fuel System Controls:
ISP Fuel Systems. or engineer approved equal.
TANK GAUGING, LEAK DETECTION, OVERFILL ALARM
Tank Level Transmitter: The system shall include a probe capable of detecting the fuel level in
the tank to the nearest 0.125”.
Leak monitoring shall include tanks, piping, header, pump and equipment basins, and
Equipment Room floor where applicable.
Monitoring Panel: The monitoring panel shall display the tank volume in gallons. The panel
shall indicate alarm conditions for fuel high level, fuel low level, tank leak and pipe leak. The
panel shall have a minimum of (2) programmable relay outputs and network capabilities for
integration with Network Interface Module.
Interstitial Monitoring: A sensor shall be provided for installation in the space between the
primary tank and the secondary containment barrier to detect a leak in the primary tank. The
sensor shall set off an audible and visual alarm on the control panel.
Piping and Header Leak Sensor: A sensor shall be provided for installation in the containment
piping and header to detect a leak in the fuel piping system. The sensor shall set off an audible
and visual alarm on the control panel and shut down the pump.
Overfill Alarm and Acknowledgment Switch: Provide an audible and visible overfill alarm and
manual acknowledgment/reset switch for mounting in the tank filling area as shown on the
plans. The panel shall have a 0-3 minute adjustable timer for automatic shutoff. The alarm shall
be connected to an output relay on the monitoring system control panel.
Acceptable Manufacturers:
Pneumercator Inc (as supplied by ISP Fuel Systems) or engineer approved equal.
FUEL OIL FILTRATION & CONDITIONING SYSTEM
The Fuel Oil Filtration & Conditioning System shall skid mounted with a UL-508A Certified
control panel as manufactured by ISP Fuel Systems. The system shall utilize a touch screen
“Operator Interface” display for alarms and conditions as well as programming for start cycle
and run time duration. All piping components shall be contained within a 3½” high leak pan (or
optional weather resistant enclosure) and shall consist of the following components:
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Fuel Filtration:
Combination coalescing / filtration element for water & particulate removal to 2 microns
Transfer pump with a minimum capacity adequate to circulate the entire contents of the main fuel
oil storage tank within a 24-hour period. System will include a pressure relief valve to be piped
back to the tank or to the return line. Note that if a submersible pump is mounted at the main
fuel storage tank(s), the filtration system skid will not include a pump.
Duplex strainer
Differential pressure switches for dirty strainer and dirty filter alarms at control panel
Flow switches for verification of flow
Suction & discharge gauges to be minimum 2” diameter, liquid filled with needle valve for gauge
isolation.
Solenoid valve (N.C.) on each filter vessel sump for discharge of water to water storage tank
Motorized Valves for tank filtration selection (Multiple Tanks Only).
Fuel Conditioning:
Water containment tank shall be double wall w/ high level switch & outer containment leak
sensor
55 Gallon chemical additive storage drum with fuel oil stabilizers similar to Racor ADT1201
CONDITIONER PLUS.
Metering pump with adjustment feature for injection of stabilizers into fuel oil tanks during
filtration operating cycle
Fuel Oil Filtration & Conditioning Control Panel Features:
1) UL Certified Control Panel with “Operator Interface”
2) Cycle Start Pushbutton
3) Cycle Stop Pushbutton
4) Lamp Test Pushbutton
5) Alarm Acknowledge / Reset
6) Alarm Horn
7) Pump Run Indicator
8) Additive Pump Run Indicator
9) Tank Selection Motorized Valve Control & Status Indication
The following alarms are to be monitored by the fuel filtration system. All alarms will be available
through “dry contacts” in the filtration system control panel for remote monitoring by the building
management system:
 Pump / System Failure – Occurs when a “no flow” condition is detected by the flow switch on the
discharge of the pump
 Strainer Dirty – Does not shut down system
 Filter Dirty – Does not shut down system
 Excess Water in Filter – Shuts down system
 Pump Leak – Shuts down system
 Water Storage Tank Full – Shuts down system
 Water Storage Tank Leak – Shuts down system
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Additive Tank Empty – Does not shut down system
Tank selection valve misaligned – Shuts down system (Multiple Tanks Only)
Fuel Oil Filtration System Sequence of Operation:
System Timer Operation – The start time and duration of the cycle is programmable through the “operator
interface”. The system can be set to operate on specified days of the week for the desired amount of time.
Other operation schedules can be added at the factory to meet the needs of the maintenance personnel.
Tank Selection (Multiple Tanks Only) - Upon selection of a tank, the motorized valves will cycle so that
the fuel is taken from and returned to the selected tank. Each supply and return to each tank will require a
motorized tank selection valve. These valves will be monitored for proper alignment. Should it be
determined that the valves are not in proper alignment, and alarm will sound and the system will shut
down.
Acceptable Manufacturers:
ISP Fuel Systems or engineer approved equal.
PREFABRICATED CONTAINMENT STEEL PIPING SYSTEM FOR ABOVEGROUND PIPING
Provide Prefabricated containment piping systems engineered and totally prefabricated DoublePipe type containment system similar to Tricon Double-Con furnished by ISP Fuel Systems or
as approved by the engineer.
The system supplier shall have at least five (5) years of experience in the manufacture of
secondary contained pipe systems having an integrated leak detection system.
All straight sections, fittings and other accessories shall be factory prefabricated to job
dimensions.
Secondary containment joints completed at the factory shall be 100 percent air-tested.
The system shall be manufactured to allow the placement of the leak detection probe in the
secondary containment.
The containment shall be drainable, dryable and air pressure testable.
Trained factory representatives of the piping supplier shall provide technical field support during
critical periods of installation, including final check out of the leak detection system.
The secondary containment manufacturer shall supply a complete design submittal, including
layout drawings, leak detection probe locations, catalog sheets, material data and pipe stress and
end load calculations in accordance with ANSI B31.1 latest edition. The calculations shall be
stamped by a Registered Professional Engineer.
I.
Containment Piping (Above Grade - Indoors):
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1. The secondary containment shall be a fabricated from Schedule 10 carbon steel, in
accordance with ASTM A-135 Grade B, with a 3-4 mils DFT (dry film thickness) red oxide
primer.
2. All construction, including fittings, accessories and field joints shall be fully welded and
liquid tight.
3. The containment casing shall be sized to accommodate any expansion or contraction of the
pipe due to temperature and/or differential expansion rates of dissimilar materials.
4. All containment casing shall be pitched downward to provide a drain point with no pockets.
Minimum pitch shall be one inch downward in 40 feet.
5. The installer shall seal the field joint area with a steel sleeve, welded in place with two
circumferential welds, painted with red oxide primer.
II. Containment Piping (Above Grade - Outdoors):
1. The secondary containment shall be a fabricated from Schedule 10 carbon steel, in
accordance with ASTM A-135 Grade B.
2. All construction, including fittings, accessories and field joints shall be fully welded and
liquid tight.
3. The containment casing shall be sized to accommodate any expansion or contraction of the
pipe due to temperature and/or differential expansion rates of dissimilar materials.
4. All containment casing shall be pitched downward to provide a drain point with no pockets.
Minimum pitch shall be one inch downward in 40 feet.
5. Containment pipe insulation shall be factory injected, nominal .16 k-factor and a 2 pound per
cubic foot density, polyurethane foam which completely fills the annular space between the
containment pipe and exterior casing. The specified insulation shall be applied to a nominal
thickness of 1½” and in no case less than 1”.
6. The exterior casing shall be 20 Ga. (0.0315” wall) spiral lock seam aluminum.
1. The installer shall seal the field joint area with a steel sleeve, welded in place with one
horizontal and two circumferential welds. Prior to insulating the field joint, the installer
shall perform the required pressure testing per this specification and ensure that any leaks
have been repaired. The installer shall place polyurethane foam half shells over the joint
and seal the area with a wrap around aluminum draw band, secured in place by bolts and
sealed with silicone.
7. Where heat tracing is indicated, the exterior of the containment conduit shall be fitted with a
¾” heat trace channel, embedded in the polyurethane foam insulation, to allow for field
installation of the heat trace cable
III. Carrier Piping
1. The carrier piping shall be Schedule 40, seamless, ASTM A106 Grade B carbon steel with
butt weld joints for pipe sizes 2½” and larger and socket weld joints for pipe sizes 2” and
smaller.
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2. Pipe sizes 2 ½” & larger shall have A234 WPB butt weld fittings per ASME/ANSI B16.9
and pipe sizes 2” and smaller shall have Class 3000 forged steel socket weld fittings and
couplings per ASME/ANSI B16.11.
IV. Pipe Supports (Internal)
1. The carrier piping shall be suitably spaced to accommodate field welding within the
containment casing.
2. The pipe supports shall be designed to maintain orientation of the pipes throughout the
system and shall permit axial or lateral movement due to expansion.
3. The supports shall be designed of materials compatible with the carrier and containment pies
and shall be arranged to permit spilled fluid to drain to the nearest leak detection points.
4. The pipe supports shall be fixed to prevent movement during transportation, installation and
operation.
5. Supports shall be carbon steel. The support shall be .250" thick steel plate type and shall be
designed and factory installed by the secondary containment manufacturer.
6. Support spacing shall be determined by the manufacturer based on pipe diameter, pipe
material and operating temperature of the product pipes. Pipes within the secondary
containment shall be supported at not more than 10 foot intervals.
7. All pipe supports shall be constructed to provide positive electrical ground to discharge any
static charges from carrier pipes to the containment casing.
V. Expansion
1. Any expansion of the carrier pipes shall be accommodated by the natural flexibility of the
pipe by using elbows or expansion loops within the containment system. Mechanical
expansion joints will not be allowed.
VI. Terminal Ends
1. All terminal ends of the containment casing shall be equipped with fully welded end seals.
2. Terminal ends shall be fitted with leak detection/drain, and vent and drain flush ports.
3. Above Grade – Indoors: All subassemblies shall be designed to allow for complete draining
of the secondary containment.
3A. Above Grade – Outdoors: End seals and other subassemblies shall be designed and factory
prefabricated to prevent the ingress of moisture into the system. All subassemblies shall be
designed to allow for complete draining of the secondary containment.
VII.
Grounding
1. The containment casing shall be provided with positive grounding connections to discharge
any static charges from the containment casing to an earth ground.
2. Grounding connections shall be provided on the containment casing at the locations
indicated on the drawings.
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3. Ground wiring shall be done as part of the work specified in Division 16, “electrical”.
VIII.
Testing
1. The carrier supply piping shall be tested for leaks hydrostatically to 150 psig. The test shall
be held for not less than one hour, in which time there shall be no loss in pressure.
2. The carrier piping shall be tested, incrementally if required, before containment casing
conceals the pipe joints.
3. Containment Casing: The entire containment casing system shall remain airtight at 15 psig
air pressure for a period of no less than 24 hours prior to field painting or concealment.
During testing, all field welds shall be checked with soap suds and be re-welded if leaks
become evident.
IX. Installation
1. The installing contractor shall install the system in accordance with the directions furnished
by the manufacturer and as approved by the engineer.
2. The contractor shall strictly adhere to the installation guidelines supplied by the system
manufacturer and shall keep the secondary containment system clean and dry at all times
during the installation process.
X. Leak Detection
Leak sensors shall be installed in each tank sump, piping transition sump, and wherever
shown on the drawings. In addition, leak sensors shall be installed in double wall steel
outer containment pipe (indoors) at low points when piping does not drain towards any
sump, Leaks shall be monitored at the tank gauging and Master Panels.
1. Tricon Piping Systems, Inc. as provided by ISP Fuel Systems, North Brunswick, NJ or as
approved by the engineer.
UNDERGROUND PIPING SYSTEM
The primary delivery piping system shall be for suction or pressure applications and have semirigid coaxial type double wall construction, with the primary pipe loosely fitting into the
secondary pipe. This loose fit allows for rapid migration of any leaks from the primary pipe into
the secondary pipe and then to a designated accumulation point. All pipe and fittings are
designed for direct burial and pipe runs can be joined without the use of transition sumps. Direct
buried fittings shall be true double wall construction with no bridging from the primary to the
secondary pipe. Secondary fittings shall be pressure rated for a minimum of 50 psig. The piping
system shall be compatible with chemicals naturally found in the ground and resistant to bacterial
attack. Piping shall be supplied in flexible coils for longer pipe runs with no joints where
feasible, or in sticks for conventional piping installations. All pipe, fittings and penetration
fittings are to be listed by Underwriters Laboratories UL971 and ULC/ORD-C971-2005 for
Nonmetallic Underground Piping for Flammable Liquids and approved for use for Normal Vent,
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Vapor Recovery and Product Piping. All piping shall meet the UL971 standard for all four test
fuels: MV, CT, HB, AM. Where desired coaxial or single wall pipe may be installed within a 4”
dual layer thermoplastic corrugated pipe chase to permit replacement of the pipe without the need
of excavation. Pipe shall be available in 1.5” thru 4” diameter and provide bend radius, burst
pressures, pressure ratings, vacuum ratings and operational temperatures as listed in Figure A
below.
Piping used for vapor recovery shall be CARB approved.
All fittings, penetration fittings and pipe couplers shall be an electrofusion type and made of
HDPE material. Fittings, include couplers, elbows, tees, termination fittings with integral bronze
threads, unions or flanges and penetration fittings. Only fittings supplied by the manufacturer
may be used and shall carry the UL971 listing. All fittings and pipe which are electrofused may
only be fused using the fusion welder supplied by the manufacturer. The electrofusion welder
shall be a constant current welder and shall automatically recognize the type and size of fitting
along with the ambient temperature when connected to apply the correct amount of energy to
provide a successful weld. This automated welder alleviates any operator adjustments to provide
a successful weld. Field bonded, swedged, glued or mechanical joined pipe and fittings shall not
be allowed.
Penetration fittings when used in conjunction with HDPE tank, dispenser or transition sumps
shall be the EIF series as manufactured by UPP, made of HDPE and fusion welded only. Use of
rubber style penetration fittings is not allowed . When tank, dispenser or transition sumps are
made of fiberglass construction, penetration fittings shall be the FEB series as manufactured by
UPP to provide a rubber-less entry fitting.
Secondary containment terminating reducers used for terminating the secondary piping to the
primary piping inside of tank, transition or dispenser sumps shall be made of HDPE and fusion
welded only. Terminating reducer shall include an integral test port for use in future testing of
the secondary containment piping system. Test ports may have internal valves removed to
provide draining of primary pipe leaks into low point accumulation sumps.
Figure A.
Size
Description
1 ½” 1 ½” Double Wall
Pipe- 33ft Stick
1 ½” 1 ½” Double Wall
Pipe- 33ft Stick
1 ½” 1 ½” Double Wall
Pipe165ft Coil
1 ½” 1 ½” Double Wall
Pipe165ft Coil
Primary
Weight
In
Lbs/ft
1.18
Pressure Rating
@ 75°F
=ve
-ve
(Psig)
(“Hg)
90
26.6
Ave
Burst
(psi) @
75°F
580
Bend
Rad @
75°F
3’3”
Secondary
1.18
58
15
300
3’3”
Primary
1.18
90
26.6
580
3’3”
Secondary
1.18
58
15
300
3’3”
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Operation
Temp
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
2”
2”
2”
2”
2”
2”
3”
3”
4”
4”
2”
3”
2” Double Wall Pipe33ft Stick
2” Double Wall Pipe33ft Stick
2” Double Wall Pipe38ft Stick
2” Double Wall Pipe38ft Stick
2” Double Wall Pipe100ft – 165 ft Coil
2” Double Wall Pipe100ft – 165 ft Coil
3” Double Wall Pipe19ft-38ft Stick
3” Double Wall Pipe19ft-38ft Stick
4” Double Wall Pipe19ft Stick
4” Double Wall Pipe19ft Stick
2” Single Wall
Vent/Vapor19ft Stick
3” Single Wall
Vent/Vapor19ft Stick
Primary
1.45
90
26.6
580
3’3”
Secondary
1.45
58
15
300
3’3”
Primary
1.45
90
26.6
580
3’3”
Secondary
1.45
58
15
300
3’3”
Primary
1.45
90
26.6
580
3’3”
Secondary
1.45
58
15
300
3’3”
Primary
2.90
90
26.6
580
13’2”
Secondary
2.90
58
15
300
13’2”
Primary
3.71
90
26.6
580
13’2”
Secondary
3.71
58
15
300
13’2”
Primary
.70
90
26.6
580
3’3”
Primary
1.44
90
26.6
580
9’10”
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
-22° to
122°F
A. References:
NFPA 30, “ Flammable and Combustible Liquids Code”
NFPA 30A, “ Code for Motor Fuel Dispensing Facilities and Repair Garages”
NFPA 37, “Stationary Combustion and Gas Turbines”
Underwriters Laboratories – UL-971
PEI/RPI-100 “Recommended Practices for Installation of Underground Liquid Storage Systems”
PEI/RPI-200 “Recommended Practices for Installation of Aboveground Storage Systems for Motor
Vehicle Fueling”
PEI/RPI-800 “Recommended Practices for Installation of Bulk Storage Systems”
USEPA – 40 CFR Parts 280 & 281 Federal UST Standards
PPI – Plastic Pipe Institute
NYCFD – New York City Fire Department C of A Approval # 5143
Compatibility:
The piping system and fittings shall be resistant to all of the following:
1. Motor Vehicle Fuels (MV) - petroleum based hydrocarbon fuel typically found in consumer
dispensing, boiler operations, and emergency generation systems using gasoline or diesel fuels
including blended fuels with a maximum 15% MTBE or Methanol or 30% Ethanol.
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2.
Concentrated Fuels (CT) - Alternate un-blended fuels for up to 100% concentrations of Toluene,
Methanol and Ethanol.
3. High Blend Fuels (HB) - Fuels with higher than normal gasoline blends with maximum 50%
Methanol or Ethanol.
4. Aviation and Marine Fuels (AM) - Specialty aviation and Marine use fuels for up to 100%
kerosene or leaded gasoline
Underground Piping- Materials and construction
Primary & Secondary Pipe and Fittings
Material-All primary piping shall be a single-wall "UPP" brand, as manufactured by
PetroTechnik, Inc. All primary piping shall have a pressure rating of 90 psig and a vacuum rating
of 26.6 Hg. All secondary containment piping shall be "UPP" brand, as manufactured by
PetroTechnik, Inc. All secondary containment piping shall have a pressure rating of 58 psig and
a vacuum rating of 15 Hg.
The primary pipe shall consist of three integrated layers:
Black outer structural layer of the pipe is a High Density Polyethylene (HDPE) grade, PE80 or
PE100 which allows the use of electrofusion couplers and fittings to construct the pipeline
system.
The intermediate layer is a tie-layer (adhesive) which permanently bonds the polyethylene layer
to the polyamide layer.
The yellow inner barrier layer of UPP Extra pipe is specially formulated "fuel proof” Polyamide
which is resistant to absorption and permeation of all motor fuels.
Fittings
All primary couplings, sump entry fittings, and miscellaneous piping appurtenances shall be
"UPP" brand for double-wall, as manufactured by PetroTechnik, Inc. The fittings shall be
permanently attached to the primary pipe by electrofusion (or as otherwise specified by the
manufacturer).
All secondary containment fittings, sump entry fittings and test boots shall be "UPP" brand as
manufactured by PetroTechnik, Inc., and shall allow for 100% inspection of the primary joint
pressure test before being be fully air-testable itself.
Delivery, Storage and Handling:
Pipe and fittings shall be protected from damage due to impact and point loading. Pipe shall be
properly supported to avoid damage due to flexural strain. The contractor shall not allow dirt,
debris or other extraneous materials to get into the pipe and fittings. All factory machined areas
shall be protected from sunlight until installed.
Installation and Training:
The piping system shall be installed as specified on contract drawings or at the discretion of the
installing contractor to provide a complete pipe conveyance system as required for the project.
Pipe sizes shall be as shown on the contract drawings.
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All pipe and fittings installed or constructed in the field shall be assembled and fusion welded by
employees of the contractor who have been trained and certified by the manufacturer. When
required the pipe manufacturers authorized trainer shall train the contractor’s employees in the
proper assembly and fusion welding procedures necessary for the project.
The piping system shall be installed in strict accordance with the manufacturers current
installation published installation instructions. The installing contractor shall be responsible for
all necessary specialty tools and consumables required for a complete testable piping installation.
Testing Underground Product Piping
General
Contractor shall notify, where required, any authorities having jurisdiction in advance of any
piping tests. Prior to pressure testing, the piping must be isolated from any tanks, pumps, boilers
or dispensers. An air pressure test must be performed on the primary and secondary piping to
detect any leaks that may exist. Test pressure to be in accordance with UPP Product Installation
Manual for a minimum of one hour with no pressure decay. All testing shall be in compliance
with the pipe manufacturer's installation instructions.
Prior to Backfill
All new piping shall be tested before being covered, enclosed, or placed into service. Test
pressure to be in accordance with UPP Product Installation Manual for a minimum of one hour
with no pressure decay. On double-wall secondary piping systems, after the inner pipe test has
been concluded, the contractor must pressure test the secondary containment piping at the air
pressure required by the local inspector.
After Backfilling
After backfilling, all underground primary lines shall be tested with a precision testing system by
a third party independent testing company.
Tightness Certificate
Upon completion of the test, the Contractor shall provide a “Certificate of Tightness” to the
Owner prepared by the independent testing company.
Tank, Transition and Dispenser Sumps
All Tank Sumps, Transition Sumps and or Dispenser Sumps shall be made of HDPE and
manufactured or otherwise as recommended by PetroTechnik.
Acceptable Manufacturer and Products:
All pipe, fittings and specialty components for a complete fuel delivery system shall be as
manufactured by PetroTechnik, Cresskill NJ 07626 and branded as the UPP pipe system or an
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approved equal.
Warranty
The piping system manufacturer shall provide a 10 year warranty against defects in the pipe and
fittings. Ref: Franklin Fueling Systems UPP Warranty for details.
H. STARTUP, COMMISSIONING, & OWNER TRAINING
Fuel system equipment supplier shall include startup of pumps, filtration systems, gauging
systems, controls and all fuel system devices being provided for this project. Unless otherwise
specified, startup shall include verification of field wiring landed at each piece of equipment
supplied by the fuel system supplier and all shop and field testing of this equipment.
Commissioning of equipment shall be per the project requirements as described elsewhere in the
project documents. Fuel system supplier shall include 8 hours of Owner training for the
operation and maintenance of the system provided.
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