\* \* \* \* \* \* \* \* \* \*

READ AND** REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

\* \* \* \* \* \* \* \* \* \*

[DIVISION 15: MECHANICAL]{.underline}

SECTION 15484 ‑ FUEL OIL SYSTEMS

USE: Furnishing and installing fuel storage tanks, controls, and piping
for a fuel oil system.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[\_\_\_\_\_\] provide for information
to be inserted, as appropriate, to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface**,
and *italics*, within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately.)

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED.** Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name of the Project (upper and lower
case)**. Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specification that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST
110, or call (303) 987-6868.

**DRAWING DATA REQUIRED:**

**REQUIRED SPEC MODIFICATIONS:**

[GENERAL NOTES]{.underline}

A. Whenever entire articles, paragraphs or subparagraphs are not
applicable, the articles, paragraphs or subparagraphs should be deleted;
when necessary, reletter or renumber articles, paragraphs or
subparagraphs.

B. THIS GUIDE IS NOT INTENDED AS A SUBSTITUTE FOR READING THE ENTIRE
SECTION.

[TECHNICAL NOTES]{.underline}

A. 1.1B: Select or add applicable specification sections. Do not list
specification sections from Division 15.

B. 1.2: Select or add applicable references.

C. 1.3B: Insert number of copies of the manufacturer\'s descriptive data
required. Normally 5 copies are required. Distribution after review is
normally 1 copy to the COR, 3 copies to the Contractor, and 1 copy to
the project file.

D. 1.3C: Insert number of copies of the manufacturer\'s installation
instructions required. Normally 5 copies are required. Distribution
after review is normally 1 copy to the COR, 3 copies to the Contractor,
and 1 copy to the project file.

E. 1.3D: Insert number of copies of the manufacturer\'s operating and
maintenance instructions required. Normally 5 copies are required.
Distribution after review is normally 1 copy to the COR, 3 copies to the
Contractor, and 1 copy to the project file.

F. 1.3E: Insert number of copies of shop drawings required. Normally 5
copies are required. Distribution after review is normally 1 copy to the
COR, 3 copies to the Contractor, and 1 copy to the project file.

G. 1.3F: Insert number of copies of calibration charts required.
Normally 5 copies are required. Distribution after review is normally 1
copy to the COR, 3 copies to the Contractor, and 1 copy to the project
file.

H. 2.1A1: Select applicable information.

I. 2.1A4: Select applicable weight.

J. 2.1B1: Select type of copper piping.

K. 2.1B2: Select applicable weight.

L. 2.1D4: Select and insert applicable information.

M. 2.1E6: Insert type of mesh.

N. 2.1F: Insert required information.

O. 2.1H5: Insert type of fittings.

P. 2.2A: Insert required information.

Q. 2.2B: Insert required information.

R. 2.2C: Insert required information.

S. 2.2D: Insert required information.

T. 2.3A: Select and insert required information.

U. 3.3B: Select and insert required information.

V. 3.3D: Select applicable words.

W. 3.03F:

\* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \*
\* \* \* \* \* \*\* \* \* \* \* \* [NOTE TO DESIGNER!!]{.underline} \*

Design shall provide for a cover of not less than 2 ft in non-vehicular
traffic areas and a cover of not less than 3 ft in vehicular traffic
areas when pipe connections are at the top of the tank

\* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \*
\* \* \* \* \* \*\* \* \* \* \* \*

V. 4.1 and 4.2: When a \"lump sum\" Contract is used, delete the title
PART 4: MEASUREMENT AND PAYMENT, and both articles from this section.
Measurement and payment will be addressed in Part 4 of Section 01010
-Summary of Work.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes: 12/01

Metric:

Technical Update: 02/91

SECTION 15484

FUEL OIL SYSTEMS

[PART 1: GENERAL]{.underline}

1.1 SUMMARY:

A. Section Includes: Furnishing and installing a fuel storage tank,
controls, and required piping and accessories.

1.2 REFERENCES:

A. American National Standards Institute:

ANSI B16.3‑85 Malleable Iron Threaded Fittings, Class 150 and 300

ANSI B16.5‑88 Pipe Flanges and Flanged Fittings

ANSI B16.9‑86 Factory‑Made Wrought Steel Buttwelding Fittings

ANSI B16.11‑80 Forged Steel Fittings, Socket‑Welding and Threaded

ANSI B16.22‑89 Wrought Copper and Bronze Solder‑Joint Pressure Fittings

ANSI B16.24‑79 Bronze Pipe Flanges and Flanged Fittings, Class 150 and
300

ANSI B16.39‑86 Malleable Iron Threaded Pipe Unions Classes 50, 250, 300

ANSI B31.1‑89 Power Piping

ANSI B31.3‑90 Chemical Plant and Petroleum Refinery Piping

ANSI B31.4‑89 Liquid Transportation Systems for Hydrocarbons, Liquid
Petroleum Gas, Anhydrous Ammonia and Alcohols

B. American Petroleum Institute:

API 650‑88 Welded Steel Tanks for Oil Storage

C. American Society of Mechanical Engineers:

ASME BPVC-89 Boiler and Pressure Codes, Section VIII, Rules for
Construction of Pressure Vessels

ASME BPVC-89 Boiler and Pressure Codes, Section IX, Qualification
Standard for Welding and Brazing Procedures, Welders, Brazers, and
Welding and Brazing Operators

D. American Society for Testing and Materials:

ASTM A 53‑90 Pipe, Steel, Black and Hot‑Dipped, Zinc‑Coated Welded and
Seamless

ASTM B 88‑89 Seamless Copper Water Tube

E. American Welding Society:

AWS A5.8‑89 Filler Metals for Brazing

F. Federal Specifications:

Fed. Spec. GG‑T‑321D(2) Thermometers, Self‑Indicating, Liquid in
Glass,for Machinery and Piping Systems

Fed. Spec. L-C-530C Coating, Pipe, Thermoplastic Resin

Fed. Spec. L-T-1512A Tape, Pressure Sensitive Adhesive, Pipe
WrappingFed. Spec. UU‑B‑790A Building Paper, Vegetable Fiber, (Kraft,&
Int Am 1 Waterproofed, Water Repellant and Fire Resistant)

Fed. Spec. WW‑P‑521G Pipe Fittings, Flange Fittings, and Flanges, Steel
and Malleable Iron, (Threaded and Butt Welded), 150 Pound

G. Manufacturer\'s Standard Society of the Valves and Fittings Industry:

MSS SP‑58‑83 Pipe Hangers and Supports ‑ Materials and Design

MSS SP‑69‑83 Pipe Hangers and Supports ‑ Selection and Application

MSS SP-80-87 Bronze Gate, Globe, Angle and Check Valves

H. Military Specifications:

Mil. Spec. T‑462D Tank, Liquid Storage, Metal, Fuel‑oil, Horizontal

Mil. Spec. A‑907D Antiseize Compound, High Temperature (Navy)

Mil. Spec. C-4556 Coating Kit, Epoxy, for Interior of Steel Fuel Tanks

Mil. Spec. T‑5544B Thread Compound, Antiseize, Graphite‑Petrolatum & Am
1

Mil. Spec. P‑15147C Primer and Enamel, Coal Tar

Mil. Spec. S‑16293G Strainer, Sediment, Pipeline, Water, Air, Gas, Oil,
or Steam

Mil. Spec. P‑17608B Pump, Rotary, Power Driven, Viscous Liquid

Mil. Spec. G‑17713B(YD) Gage, Liquid Level Measuring, Tank

Mil. Spec. M‑18294B(YD) Meter, Fluid Quantity Volumetric

Mil. Spec. V‑18434B Valves, Gate, Globe, and Angle, Steel

Mil. Spec. V‑18436D Valves, Check: Bronze, Cast‑Iron and Steel Body& Int
AM 1

Mil. Spec. V‑19902B Cap, Vent, Fuel Storage Tank

Mil. Spec. T‑22361 Thread Compound, Antiseize, Zinc Dust‑Petrolatum & Am
1

Mil. Spec. P‑23236 Paint Coating Systems, Steel Ship Tank Fuel and & Am
5 Salt Water Ballast

Mil. Spec. C‑24176A Cement, Epoxy, Metal Repair and Hull Smoothing

Mil. Spec. T‑52777A Tanks, Storage, Underground, Glass Fiber Reinforced
Plastic

I. National Fire Protection Association:

NFPA 30‑90 Flammable and Combustible Liquids Code

NFPA 31‑87 Installation of Oil Burning Equipment

J. Steel Structures Painting Council:

SSPC‑Paint 9‑82 No. 9 White (or Colored) Vinyl Paint

SSPC‑PS 10.01‑82 Painting System Specification No. 10.01 Hot-Applied
Coal Tar Enamel Painting System

K. Steel Tank Institute:

STI‑P3 Underground Steel Storage Tank Protection

L. Underwriters\' Laboratories, Inc.:

UL‑58‑86 Steel Underground Tanks for Flammable and Combustible Liquids

UL‑142‑87 Steel Aboveground Tanks for Flammable and Combustible Liquids

UL‑842‑80 Valves for Flammable Fluids

1.3 SUBMITTALS:

A. General: Submittals shall be according to Section 01300 - Submittals.

B. Manufacturer\'s Literature: Submit \[\_\_\_\_\] copies of the
manufacturer\'s descriptive data for the fuel oil systems to be used on
this project.

C. Installation Instructions: Submit \[\_\_\_\_\] copies of the
manufacturer\'s installation instructions for the fuel oil systems to be
used on this project.

D. Operating and Maintenance Instructions: Submit \[\_\_\_\_\] copies of
the manufacturer\'s operating and maintenance instructions for the fuel
oil systems to be used on this project.

E. Shop Drawings: Submit \[[ ]{.underline}\] copies of shop drawings for
each tank to be used on this project. \[Shop drawings shall include
dimensions and show locations of fittings and accessories, i.e.,
manways, ladders, hold‑down straps, heating coils. \[A bill of materials
shall be furnished with the shop drawings.\] Drawing shall be \[same\]
\[larger\] scale as the full size Contract Drawings.

F. Performance Data: Submit \[\_\_\_\_\] copies of calibration charts
showing the performance characteristics for the meters, gauges and pumps
to be used on this project.

G. Certification: Submit \[\_\_\_\_\] copies of written certification
that the surface preparation, application procedure and materials for
the coating conform to the requirements of this specification.

H. Welding Procedure Specifications: Submit \[\_\_\_\_\] copies of the
welding procedure specification for metals included in work, together
with proof of the Contractors qualifications as outlined in ANSI B 31.1
prior to performing any welding.

I. Performance Qualification Record: Submit \[\_\_\_\_\] copies of the
Welder\'s Performance Qualification Record according to ANSI B 31.1
showing that the welder was tested under the approved procedure
specification submitted by the Contractor. In addition, the Contractor
shall also submit each welder\'s assigned number, letter, or symbol
which shall be used to identify the work of the welder and which shall
be affixed immediately upon completion of the weld. Welders making
defective welds after passing a qualification test shall be given a
requalification test and upon failing to pass the test shall not be
permitted to work this Contract.

1.4 QUALITY ASSURANCE:

A. Labeling Requirements: Underwriters\' Laboratories, Inc. (UL) labels
shall be affixed to each tank.

B. Previous Qualifications: Welding procedures, welders, and welding
operators previously qualified by test may be accepted for this Contract
without requalification subject to the approval of the Contracting
Officer and provided that the conditions specified in ANSI B 31.1 are
met before a procedure can be used.

C. Welding of Piping: Welding of joints in piping, butt welds, fillet
welds, bends, loops, offsets, and cleaning of pipe shall be according to
ANSI B 31.1.

D. Quality of Welds: Quality of welds, correction of defects, stress
relieving, and preheating shall be according to ANSI B 31.1.

E. Arc Welding and Gas Welding: Shall be according to the ASME Boiler
and Pressure Vessel Codes, Section IX.

1.5 DELIVERY, STORAGE AND HANDLING:

A. Delivery: Tanks shall be transported in such a manner as to prevent
damage to the tank or the protective coating.

[PART 2: PRODUCTS]{.underline}

2.1 MATERIALS:

A. Steel Piping:

1\. Pipe: Shall be black steel, \[electric‑resistance welded\] \[or\]
\[seamless\] according to ASTM A 53 Schedule \[40\] \[80\].

2\. Threaded and Socket‑Welding Fittings: Shall be forged steel
according to ANSI B 16.11.

3\. Threaded Fittings: Shall be black malleable iron according to ANSI B
16.3.

4\. Butt‑Welding Fittings: Shall be according to ANSI B 16.9, \[150 lb\]
\[300 lb\]. Backing rings shall conform to ANSI B 31.4 and be compatible
with materials being welded.

5\. Flanges and Flange Fittings: Shall be according to ANSI B 16.5 steel
flanges or convoluted steel flanges which meet the criteria of ASME Code
Section VIII. Flange faces shall have integral grooves of rectangular
cross section which afford containment for self‑energizing gasket
material.

B. Copper Piping:

1\. Pipe and Tubing: Shall be \[hard‑drawn\] \[annealed\] according to
ASTM B 88, Type \[K\] \[or\] \[L\].

2\. Flanges and Flanged Fittings: Shall be \[150 lb\] \[300 lb\]
according to ANSI B 16.24.

3\. Solder Joint Fittings: Shall be wrought copper according to ANSI B
16.22.

C. Vent Piping: Shall be zinc‑coated steel conforming to ASTM A 153
standard weight, with zinc‑coated malleable iron fittings conforming to
Fed. Spec. WW‑P‑521.

D. Valves:

1\. Bronze Gate Valves: Shall be according to MMS-SP-80, 1 1/2 inches
and smaller, wedge disc, non‑rising stem.

2\. Steel Gate Valves: Shall be according to Mil. Spec. V‑18434, Type I,
oil service, Class 150.

3\. Relief Valves: Shall be according to UL 842, steel or bronze bodies,
corrosion‑resistant valve seats, and positive closing so that leakage
will not occur.

4\. Check Valves: Shall be according to Mil. Spec. V‑18436, Group \[A\]

\[[ ]{.underline}\], Type \[I\] \[II\] \[III\], \[[ ]{.underline}\],
Trim \[3\] \[[ ]{.underline}\], Class 150 \[[ ]{.underline}\].

E. Piping Accessories:

1\. Flexible Metal Hose: Shall be corrugated type with braided wire
sheath covering, close‑pitch annular corrugations, rated for a working
pressure of at least 125 psig, 8‑inch minimum live length, flanged end
connections, UL listed for flammable liquid service. Metal for hose and
braided wire sheath shall be stainless steel, any type of 300 series.

2\. Unions: Shall be according to ANSI B 16.39, 150 lb and 250 lb.

3\. Welding Filler Metal: Shall be according to ANSI B 31.4 and
compatible with the materials to be welded.

4\. Brazing Filler Metal: Shall be according to AWS A 5.8, silver base
alloy, with melting point not less than 1,100 degrees F.

5\. Hangers and Supports: Shall be according to MSS‑SP‑58, types as
required by MSS SP‑69.

6\. Strainers: Shall be according to Mil. Spec. S‑16293 single or duplex
basket type, as specified with inlet and outlet on the same center line.
Cast steel or fabricated steel body, \[[ ]{.underline}\] mesh 300 series
stainless‑steel baskets. Open area of one basket shall be 2‑1/2 times
inlet or outlet piping area. Furnish one spare basket.

7\. Fill Box: Shall be lock‑type design with cast‑iron body and bronze
inside lock cap, designed for flush mounting in concrete encasement,
water‑tight with drain holes in bottom. Furnish wrench for opening box.

8\. Gaskets: Shall be composition asbestos gaskets for flanged and
bolted connections.

F. Meters: Shall be according to Mil. Spec. M‑18294, Type A \[piston\]
\[or\] \[disk\], size as indicated, for \[[ ]{.underline}\] gpm maximum
flow of Grade No. \[[ ]{.underline}\] fuel oil at \[[ ]{.underline}\] to
\[[ ]{.underline}\] degrees F and \[[ ]{.underline}\] psig maximum
pressure. Meter shall be arranged for mounting \[in pipe line\] \[on
pedestal\] \[and shall have overrange protection\]. Casing shall be
\[aluminum\] \[bronze\] \[cast‑iron\]. Pressure drop through meter shall
not exceed \[[ ]{.underline}\] psi.

G. Instruments: Tank gauges shall be according to Mil. Spec. G‑17713,
buoyant force type with direct reading dial. Thermometers shall be
according to Fed. Spec. GG‑T‑321 mercury type with wells and temperature
range suitable for the use encountered.

H. Protective Coating Systems for Buried Steel Tanks and Steel Piping:

1\. Steel Tank Coating: Coat the exterior surfaces of steel tanks for
installation underground with a protective coating conforming to SSPC‑PS
10.01 except that only coal tar conforming to Mil. Spec. P‑15147 shall
be used. The coal tar coating shall be covered with reinforced
protective paper conforming to Fed. Spec. UU‑B‑790, Type 1, Grade 1,
Style 4, with reinforcing averaging not less than 20 strands of fiber
per foot and having a minimum tensile strength of 35 pounds per inch in
both directions. Cover surfaces of the tank. Secure paper in place by
cementing it to itself with an approved adhesive and by tying it with
marline at intervals of 2 ft. Wire shall not be used. Coating may be
shop or field applied at the option of the Contractor.

2\. Epoxy Coal‑Tar Coated Steel Tanks: Protective coating and corrosion
control system shall meet the requirements of STI‑P3.

3\. Fiberglass Reinforced Plastic (FRP) Coated Steel Tanks: Shall have a
1/8‑inch nominal fiberglass reinforced plastic coating.

4\. Piping: Protective coatings shall conform to the requirements of
Fed. Spec. L-C-530, Type 1.

5\. Fittings: Protective Coatings shall conform to the requirements of
Fed. Spec. L-T-1512 \[Type 1.\] \[Type II.\]

I. Protection for Aboveground Steel Pipe and Steel Tanks: Protect
aboveground steel pipe and tanks against atmospheric corrosion by a
prime coat, inorganic, zinc‑rich primer according to Mil. Spec. P‑23236,
Type I, Class 3, bond or tie coat according to the specifications of
manufacturer of the prime coat and two finish coats of vinyl paint
according to SSPC ‑ Paint 9. Internally coat aboveground steel storage
tanks with capacities in excess of 20,000 gallons according to Mil Spec.
C-4556. Prior to internal coating as described above, unsealed lap seams
shall be sealed with epoxy cement in accordance with Mil. Spec. C‑24176,
Type II. Inaccessible voids shall be filled with epoxy cement prior to
application of the coating.

2.2 FUEL OIL HEATING AND PUMPING:

A. Storage Tank Heater: Vertical type installed through a \[[
]{.underline}\] diameter manhole in top of tank. Weld pipe connections
to manhole cover and entire assembly shall be removable as a unit.
Heater shall have the capacity to heat \[[ ]{.underline}\] gpm of No.
\[[ ]{.underline}\] fuel oil from \[[ ]{.underline}\] degrees F to \[[
]{.underline}\] degrees F when supplied with \[[ ]{.underline}\] psig
steam\] \[[ ]{.underline}\] gpm of \[[ ]{.underline}\] degrees F hot
water\]. Coil shall have steel tubes and be designed for working
pressure of \[[ ]{.underline}\] psig. Coil shall extend to within 6
inches of tank bottom and shall surround oil suction line.

B. Shell and Tube Heater: The shell, containing oil, shall be steel with
\[steel\] \[cast iron\] heads and 3/4‑inch O.D. x 16 BWG steel tubes
with removable bundles. Construct unit according to Section VIII of the
ASME Boiler Pressure Vessel Code and design for \[[ ]{.underline}\]
psig. Heater shall have necessary heating medium connections such as
inlet and outlet, drain, vent, thermometer, and pressure gauge. Heater
shall have the capacity of heating \[[ ]{.underline}\] gpm of No. \[[
]{.underline}\] fuel oil from \[[ ]{.underline}\] degrees F to \[[
]{.underline}\] degrees F when supplied with \[[ ]{.underline}\] psig
steam.\] \[[ ]{.underline}\] gpm of \[[ ]{.underline}\] degrees F hot
water.\]

C. Electric Heater: Shall be constructed of steel shell and steel
flanges and designed for \[[ ]{.underline}\] psig. Heater shall have
sufficient capacity to heat \[[ ]{.underline}\] gpm of No. \[[
]{.underline}\] fuel oil from \[[ ]{.underline}\] degrees F to \[[
]{.underline}\] degrees F while operating on \[[ ]{.underline}\] volts,
\[[ ]{.underline}\] phase, \[[ ]{.underline}\] cycle electric service.
Control electric heater by a magnetic starter with a manually operated
\"on‑off\" switch in series with a thermostatic control with an
adjustable range.

D. ab Oil Pumps: Shall be according to Mil. Spec. P‑17608 suitable for
No. \[[ ]{.underline}\] fuel oil at a viscosity of \[[ ]{.underline}\]
SSU. Pumps shall deliver \[[ ]{.underline}\] gpm at a developed head of
\[[ ]{.underline}\] ft and a suction lift not less than \[[
]{.underline}\] ft. Mount pump and direct connected electric motor or
steam turbine on extended base plate. Provide a drip pan with each pump.
Use metal flexible coupling. Provide pressure relief valve on discharge
lines, piped to return line. Provide duplex strainer on suction side.
Motor starters on oil pumps shall be lockable.

2.3 FUEL OIL STORAGE TANK AND ACCESSORIES:

A. Fuel Oil Storage Tanks: Construct fuel oil tanks of \[steel,\]
\[fiberglass reinforced plastic (FRP),\] \[fiberglass reinforced plastic
coated steel\] to comply with NFPA 30 and NFPA 31. \[Each fuel oil tank
shall have a \[[ ]{.underline}\]‑inch diameter manhole on top, with the
same diameter extension neck, and bolted cover with gastight gasket\].
Provide openings for fill, vent, pump suction, oil return, oil level
gauge \[, and oil heater\]. Size vent pipes according to NFPA 30 and
NFPA 31 but not less than 1‑1/4 inches in nominal inside diameter. Vent
pipe shall connect to tapping at high end of tank and shall not extend
more than one inch into tank. \[Extension of vent pipe outside of
building shall be not less than 5 ft horizontally or vertically\].

B. Design, Construction and Testing of Fuel Oil Tanks:

1\. Steel Fuel Oil Tanks (Aboveground): Shall be UL 142, welded
construction according to UL 142.

2\. Steel Fuel Oil Tanks (Underground): Shall be welded construction
according to UL 58 or STI-P3.

3\. FRP Tanks (Underground): Shall meet the requirements of Mil. Spec.
MIL-T-52777, and be Type-I (150 degrees F), Class A (vented).

C. Connections to Fuel Oil Tanks: Provide the following connections:

1\. Goose‑neck Type Vent Caps: Shall conform to Mil. Spec. C‑19902.

2\. Fill Lines: Shall have removable single strainer and lock type fill
boxes.

3\. Sounding Connection: Shall permit entry of the gaging rod, with a
lock type cap. Provide graduated gaging rod and calibration chart.

4\. Pump Suction Lines: Shall have internal vertical pipes extending to
within 4 inches of tank bottom.

5\. Swing Joint Elbows: Fuel oil supply, return fill and vent, piping
shall utilize swing joint elbows to allow for ample tank movement and
pipe expansion.

6\. Flexible Hose Connections: Shall be used for vibration isolation of
oil burning equipment.

7\. FRP Tanks: Provide a 12‑inch by 12‑inch by 1/4‑inch aluminum plate
laminated on inside bottom surface of tank directly below fill pipe and
oil level gaging rod opening.

8\. Steel Tanks: Weld a 12‑inch by 12‑inch by 1/4‑inch steel striker
plate on inside bottom surface of tank directly below fill pipe and oil
level gaging rod opening.

9\. Nylon Dielectric Fittings: Shall be on pipe connections to steel
tanks.

10\. Holddown Straps: Shall be inert insulating dielectric material
between strap and steel tank. Ferrous holddown accessories shall have a
coating to prevent corrosion.

[PART 3: EXECUTION]{.underline}

3.1 INSTALLATION:

A. General Requirements for Oil Piping: Install piping in out‑of‑the‑way
locations, in a manner that will minimize cutting of beams, girders,
columns, or load‑bearing members. Piping shall be free from traps and
shall drain toward tank and equipment. Installation of oil piping and
equipment in buildings shall conform to NFPA 31, except as indicated or
specified herein. Feed line to equipment shall have a gate valve located
near the tank.

B. Pipe Sleeves: Shall be used where pipes and tubing pass through
masonry or concrete walls, floors, roofs, and partitions. Sleeves in
outside walls below and above grade, in floor, or in roof slabs, shall
be steel pipe. Sleeves in partitions shall be zinc‑coated sheet steel
having a nominal weight of not less than 0.906 lb/ft^2^. Space between
pipe, tubing, or insulation and the sleeve shall be not less than 1/4
inch. Hold sleeves securely in proper position and location before and
during construction. Provide sleeves of sufficient length to pass
through entire thickness of walls, partitions, or slabs. Extend sleeves
in floor slabs 1/2‑inch above finished floor. Firmly pack space between
the pipe or tubing and sleeve with oakum, and caulk on both ends of
sleeve with elastic cement.

C. Floor, Wall, and Ceiling Plates: Secure plates to pipes at sleeves in
buildings. Plates shall be painted cast‑iron, malleable iron, or steel.

D. Steel Piping 2 Inches and Smaller: Shall be threaded or
socket‑welded.

E. Steel piping 2‑1/2 Inches and Larger: Shall be flanged or
butt‑welded.

F. Piping Joints: Shall conform to ANSI B 31.3.

G. Screwed Joints in Piping: Use a lubricant or polytetrafluoro-ethylene
tape conforming to Mil. Spec.T‑27730 applied to male threads of screwed
joints. Red or white lead and zinc compound conforming to Mil. Spec.
T‑22361 may be used. Lubricate threaded pipe joints, as well as bolts
and studs used on high temperature pipe joints up to 1050 degrees F,
with anti‑seize compound in accordance with Mil. Spec. A‑907. Piping
shall be free from fins and burrs. Ream or file out pipe ends to size of
bore and remove chips. Attach screwed flanges by screwing the pipe
through the flange, and reface pipe and flange accurately.

H. Copper Tubing: Cut with square ends and remove burrs and fins.
Carefully handle and protect tubing. Clean outside surface of tubing
ends and inside recess of fitting to bright metal with wire brush or
abrasive and apply flux to outside surface of tubing ends and on the
recess inside of fittings. Insert tubing to the full depth of fitting,
then braze. Remove stems and washers of solder‑joint type valves before
brazing. Brazing procedure qualification shall be according to ANSI B
31.3.

3.2 ACCESSORIES:

A. Unions and Flanges: Place unions and flanges where necessary to
permit easy disconnection of piping and apparatus. Each connection
having a screw end valve shall have a union. In long lines inside
buildings, place unions and flanges not further apart than 100 ft,
except in pipelines of welded construction. Unions and flanges shall be
as specified.

B. Valves: Install valves in positions accessible for operation and
repair. Install check valve and a gate valve on suction line of each
fuel oil storage tank.

C. Thermometers: Thermometers and thermal sensing elements of control
valves shall have separable sockets. Install separable sockets in
pipelines in such a manner to sense the temperature of flowing fluid and
minimize obstruction to flow.

3.3 FUEL OIL STORAGE TANKS:

A. General: Install storage tanks and vents and other connections
according to NFPA 30, NFPA 31, recommendations and published
instructions of the manufacturer, and as indicated.

B. Concrete: \[Shall have a compressive strength of \[[ ]{.underline}\]
psi, \[[ ]{.underline}\] maximum aggregate size and \[[ ]{.underline}\]
inches slump.\] \[Shall be according to\] \[Section 03300 ‑ Structural
Concrete.\] \[Section 03306 ‑ Minor Concrete.\]

C. Excavation: Shall be according to Section 02224 ‑ Excavation,
Backfilling, and Compacting for Structures. Excavation shall be free
from all materials that may cause damage to the tank or tank coating.

D. Aboveground Fuel Oil Tanks: Shall be set on a foundation of
\[masonry.\] \[concrete.\] \[steel.\] \[heavy angle knees welded to the
tank.\]

E. Underground Fuel Oil Tanks: Shall rest on a full length concrete pad
with holddown straps. Before placing tank into excavation, foreign
materials shall be cleaned from tank. Tanks shall be carefully lifted
and slowly lowered into the ground. Under no circumstances shall lifting
devices damage the tank or tank coating.

F. Bedding and Backfilling: Shall be according to Section 02224 -
Excavation, Backfilling, and Compacting for Structures.

3.4 FIELD QUALITY CONTROL:

A. Testing: The Contractor shall conduct the performance and acceptance
test of the fuel oil systems. The Contractor shall furnish necessary
equipment, labor, and materials to conduct the testing. Testing shall be
conducted in the presence of the Contracting Officer who shall be given
48 hours notice before any test is to be conducted. Prior to application
of test pressure, the Contractor shall remove or valve off piping
components which may be damaged by test and install a currently
calibrated test gauge in the system. The Contractor shall maintain test
pressure for at least one hour. In the event of leakage, the Contractor
shall locate and repair the leak and repeat the test.

B. Piping Test: Before backfilling of pipe trenches, the Contractor
shall perform a hydrostatic test of fuel oil piping with No. 2 fuel‑oil
at 1‑1/2 times system pressure or 100 psig, whichever is greater.

C. Steel Fuel Oil Storage Tanks: Shall be field‑tested according to
Method A of Manufacturing and Production Tests of UL 142, except that
the underground tanks shall be tested for leaks both before and after
being placed in the trench. Mechanical caulking is not permitted for
correcting leaks in tanks.

D. Fiberglass Reinforced Plastic Tank (FRP): Shall be tested according
to Mil. Spec. T‑52777.

E. Protective Coating Systems: Shall be inspected with a 10,000 volt
holiday tester just prior to placement in ground and any holidays
revealed shall be promptly repaired to a condition as good as the rest
of the system.

3.4 DEMONSTRATION:

A. Requirements: Upon completion of installation and after circuitry has
been energized, the Contractor shall demonstrate capability and
compliance of system with requirements. Malfunctioning units shall be
corrected and retested by the Contractor to demonstrate compliance with
the specifications.

3.5 TRAINING OF GOVERNMENT EMPLOYEES:

A. Requirements: See Section 01700 - Contract Closeout.

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT:

A. Units: The work described in this section will not be measured for
payment.

4.2 BASIS OF PAYMENT:

A. Payment: No direct payment for the work described under this section
will be made. The Contractor shall include consideration for this item
in the bid price for other items of the Contract.

END OF SECTION