WPCP 2%B Tg WPrestige Elite 10pt 12 pitch (D/J/M)|Lddd,#d\( @HP LaserJet Series IIHPLASEII.PRSd\( @,,,,06O2 DFN*#|d +* * * * * * * * REMOVE THIS OUTLINE GUIDE BEFORE PLACING THE SPECIFICATION SECTION IN THE CONTRACT ,* * * * * * * * 'O U T L I N E G U I D E 'DIVISION 15: MECHANICALă SECTION 15483 - FUEL OIL HANDLING SYSTEM USE:XCompletion of the basic mechanical requirements. Unique job requirements may require specific coverage in the following specification sections:(# X X` hp x (#%'X` hp x (#%'A.Section 01009: General Information and Requirements(# X (Must be used when Section 01010 is not used.)(# X B.Section 01010: Summary of Work(# X (Do not use when Section 01009 is used.)(# X C.Section 01019: Government- Furnished Property(# X (When Governmentfurnished material or equipment is used, this section must be included.)(# X D.Section 01300: Submittals(# X (When Contractorfurnished materials are used, [either] this section [or Section 01365] must be included when SEction 01009 is not used.)(# X E.Section 01365: Certificates of Conformance(# X (When Contractorfurnished materials are used, [either] this section [or Section 01300] must be included when SEction 01009 is not used.)(# X F.Section 01505: Mobilization(# X (Use when mobilization will be paid for separately.)(# X G.Section 01506: Temporary Construction Facilities(# X (Do not use when Section 01009 is used.)(# X (# FORMS REQUIRED: Add Work Data Sheet, location, and detail drawings as needed: REQUIRED SPEC MODIFICATIONS: -GENERAL NOTESă X A.Whenever entire articles, paragraphs or subparagraphs are not applicable, the articles, paragraphs or subparagraphs should be deleted; if necessary, reletter or renumber articles, paragraphs or subparagraphs.(# X B.THIS GUIDE IS NOT INTENDED AS A SUBSTITUTE FOR READING THE ENTIRE SECTION.(# h)Ԍ ,TECHNICAL NOTESă X A.1.01B: Select or add applicable specification sections. Do not list specification sections from Division 15.(# X B.4.01 and 4.02: 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 01009] [or] [Section 01010].(# X C.4.01A: When not a "lump sum" Contract, select applicable phrases; use the "no measurement" phrase when none of the Pay Items in this section are included in the Bid Schedule.(# X D.4.02A: When not a "lump sum" Contract, select applicable phrases; use the "no direct payment" phrase when none of the Pay Items in this section are included in the Bid Schedule.(# X E.When Governmentfurnished property is specified for Pay Items, the letter suffix GF will be added after the parenthesis of the item number.(# X` hp x (#%'@ X !=* * * * * * * * * * * * * * * @ =* POINT OF CONTACT * DATE OF LAST REVISION: 5/8/86*=* Del Garduno (SC673) * WRITTEN BY: Del Garduno$=* FTS 776-0128 * REVISED BY: Del Garduno$=* COMM. (303) 236-0128 * APPROVED BY: C.R. Tulloss&=* * * * * * * * * * * * * * * 115483 h)Ԍ(, .15483 (@ X@H XDIVISION 15 SECTION 15483 MECHANICAL FUEL OIL HANDLING SYSTEM Rev. 5-86 PART 1: GENERAL 1.01 SUMMARY: A.@Section Includes: The work of this section consists of furnishing and installing an oil storage tank, controls, and required piping and accessories. This task completion must result in a complete operable and safe system of fuel supply to fuel oil burning equipment.(#@ B.@Related Sections:(#@  @@H X@H Excavation, Backfilling, and Compacting for StructuresF HSection 02221(#@ @Cast-in-Place Concrete& HSection 03300 @Anchor BoltsH "" HSection 05501 1.02 REFERENCES: A. American National Standards Institute  @ANSI B16.3-77H "Malleable Iron Threaded Fittings, Class 150 and 300(#H  @ANSI B16.5-77H "Steel Pipe Flanges and Flanged Fittings Including Ratings for Class 150, 300, 400, 600, 900, 1500 and 2500(#H  @ANSI B16.9-78H "Factory-Made Wrought Steel Buttwelding Fittings(#H  @ANSI B16.11-80H "Forged Steel Fittings, Socket-Welding and Threaded(#H  @ANSI B16.22-80H "Wrought Copper and Bronze Solder-Joint Pressure Fittings(#H  @ANSI B16.24-79H "Bronze Pipe Flanges and Flanged Fittings, Class 150 and 300(#H  @ANSI B16.39-77H "Malleable Iron Threaded Pipe Unions Class 150, 250, 300(#H  @ANSI B31.1-80H "Power Piping(#H  @ANSI B31.3-80H "Chemical Plant and Petroleum Refinery Piping(#H  @ANSI B31.4-79H "Liquid Petroleum Transportation Piping Systems(#H B. American Petroleum Institute  @API 650-80H "Welded Steel Tanks for Oil Storage(#H C. American Society of Mechanical Engineers  @ASME Boiler and Pressure Code: Section VIII - Pressure Vessels - 1977(#@ @ H " Section IX - Welding Qualifications - 1978 D. American Society for Testing and Materials  @ASTM A 53-80H "Pipe, Steel, Black and Hot-Dipped, Zinc-Coated Welded and Seamless(#H  @ASTM A 120-80H "Pipe, Steel, Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless, for Ordinary Use(#H  @ASTM B 88-80H "Seamless Copper Water Tube(#H  'ԌXnvDIVISION 15 SECTION 15483 MECHANICAL FUEL OIL HANDLING SYSTEM Rev. 586E. American Welding Society  @AWS A5.8-76H "Brazing Filler Metal(#H F. Federal Specifications  @FS GG-T-321DH "Thermometers, Self-Indicating, Liquid in Glass, for(#H @& Am 2H "Machinery and Piping Systems(#H  @FS UU-B-790AH "Building Paper, Vegetable Fiber, (Kraft, Waterproofed, (#@  @& Int Am 1H "Water Repellant and Fire Resistant)(#H  @FS WW-V-54DH "Valve, Gate, Bronze (125, 150, and 200 Pound, Screwed(#@  @& Int Am 3H "Flanged, Solder end, for Land Use)(#H  @FS WW-P-521GH "Pipe Fittings, Flange Fittings, and Flanges, Steel and Malleable Iron, (Threaded and Butt Welded), 150 Pound(#H G.@Manufacturer's Standard Society of the Valves and Fittings Industry (MSS) Publications:(#@  @MSS SP-58-75H "Pipe Hangers and Supports - Materials and Design(#H  @MSS SP-69-76H "Pipe Hangers and Supports - Selection and Application(#H H. Military Specifications  @MIL-T-462DH "Tank, Liquid Storage, Metal, Fuel-oil, Horizontal(#H  @MIL-A-907DH "Antiseize Compound, High Temperature (Navy)(#H  @MIL-T-5544BH "Thread Compound, Antiseize, Graphite-Petrolatum(#@ @& Am 1(#@  @MIL-P-15147CH "Primer and Enamel, Coal Tar(#H  @MIL-S-16293GH "Strainer, Sediment, Pipeline, Water, Air, Gas, Oil, or Steam(#H  @MIL-P-17608BH "Pump, Rotary, Power Driven, Viscous Liquid(#H  @MIL-G-17713B(YD) H "Gage, Liquid Level Measuring, Tank(#H  @MIL-M-18294B(YD) H "Meter, Fluid Quantity Volumetric(#H  @MIL-V-18434BH "Valves, Gate, Globe, and Angle, Steel(#H  @MIL-V-18436DH "Valves, Check: Bronze, Cast-Iron and Steel Body(#H  @& Int AM 1(#@  @MIL-V-19902BH "Cap, Vent, Fuel Storage Tank(#H  @MIL-T-22361H "Thread Compound, Antiseize, Zinc Dust-Petrolatum(#@ & Am 1  @MIL-P-23236H "Paint Coating Systems, Steel Ship Tank Fuel and(#H & Am 5H "Salt Water Ballast  @MIL-C-24176AH "Cement, Epoxy, Metal Repair and Hull Smoothing(#H  @MIL-T-52777AH "Tanks, Storage, Underground, Glass Fiber Reinforced Plastic(#H I. National Fire Protection Association  @NFPA 30-81H "Flammable and Combustible Liquids Code(#@  @NFPA 31-78H "Installation of Oil Burning Equipment(#H  $ԌJ. Steel Structures Painting Council  @SSPC-Paint 9-64H "No. 9 White (or Colored) Vinyl Paing(#H  @SSPC-PS10.01-64T H "Coal Tar Coating Systems No. 10.01 Hot-Applied coal Tar Enamel(#H K. Steel Tank Institute  @STI-P3H "111 E. Wacker Drive Chicago, IL 60601(#H L. Underwriters' Laboratories, Inc.  @UL-58-76H "Steel Underground Tanks for Flammable and Combustible Liquids(#H  @UL-142-78H "Standards for Steel Aboveground Tanks for Flammable and Combustible Liquids(#H  @UL-842-80H "Valves for Flammable Fluids(#H 1.03 SUBMITTALS: A.@Shop Drawings: Contractor shall submit   copies of shop drawings for each tank. Drawings shall include critical dimensions and show locations of fittings and accessories, i.e., manways, ladders, hold-down straps, heating coils, etc. Materials of construction shall be in accordance with Part 2 of this specification.(#@ B.@Catalog Data: Contractor shall submit   copies of manufacturer's literature.(#@ C.@Certification Plate: UL labels shall be affixed to each tank.(#@ D.@Installation Instructions: Contractor shall submit   copies of manufacturer's latest installation instructions.(#@ E.@Calibration Charts: Contractor shall submit   copies of manufacturer's calibration charts.(#@ PART 2: PRODUCTS 2.01 MATERIALS: A. Steel Piping:  @@H @H 1.Pipe: [ASTM A 120] [or] [ASTM A 53] Schedule [40] [80], black steel, [electric-resistance welded] [or] [seamless].(#  @2. Threaded and Socket-Welding Fittings: ANSI B16.11 forged steel.(#@  $Ԍ @3. Threaded Fittings: ANSI B16.3, black malleable iron.(#@  @4.Butt-Welding Fittings: ANSI B16.9, [150 lb] [300 lb]. Backing rings shall conform to ANSI B31.4 and be compatible with materials being welded.(#  @5.Flanges and Flange Fittings: ANSI B16.5 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: ASTM B 88, Type [K] [or] [L], [hard-drawn] [annealed].(#@  @2. Flanges and Flanged Fittings: ANSI B16.24, [150 lb] [300 lb].(#@  @3. Solder Joint Fittings: ANSI B16.22 wrought copper.(#@ C.@Vent Piping: Zinc-coated steel conforming to ASTM A 120 standard weight, with zinc-coated malleable iron fittings conforming to Fed. Sped. WW-P-521.(#@ D. Valves:  @1.Bronze Gate Valves: Fed. Spec. WW-V-54, Class A, 1 1/2 inches and smaller, wedge disc, non-rising stem.(#  @2.Steel Gate Valves: Mil. Spec. MIL-V-18434, Type I, oil service, Class 150.(#  @3.Relief Valves: UL 842, steel or bronze bodies, corrosion-resistant valve seats, and positive closing so that no leakage will occur.(#  @4.Check Valves: Mil. Spec. MIL-V-18436, Group [A] [ ], Type [I] [II] [III], [ ], Trim [3] [ ], Class 150 [ ].(# E. Piping Accessories:  @1.Flexible Hose: Flexible metal hose, 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 ASTM 300 series.(#  @2.Unions: ASNI B 16.39, 150 lb and 250 lb.(#  $Ԍ @3.Welding Filler Metal: ANSI B 31.4 and compatible with the materials to be welded.(#  @4.Brazing Filler Metal: AWS A 5.8, silver base alloy, with melting point not less than 1,100$F.(#  @5.Hangers and Supports: MSS-SP-58, types as required by MSS SP-69.(#  @6.Strainers: Mil. Spec. MIL-S-16293 single or duplex basket type, as specified with inlet and outlet on the same center line. Cast steel or fabricated steel body, [ ] 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: 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: Provide composition asbestos gaskets for flanged and bolted connections.(# F.@Meters: Mil. Spec. MIL-M-18294, Type A [piston] [or] [disk], size as indicated, for [ ] gpm maximum flow of Grade No. [ ] fuel oil at [ ] to [ ] $F and [ ] 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 [ ].(#@ G.@Instruments: Tank gauges Mil. Spec. MIL-G-17713, buoyant force type with direct reading dial. Thermometers 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. MIL-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 !, 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. Contractor shall submit written certification that the surface preparation, application procedure and materials for the coating conform to the specified requirements. Coating may be shop or field applied at the option of the Contractor.(# $Ԍ @2.Epoxy Coal-Tar Coated Steel Tanks: Protective coating and corrosion control system shall meet the requirements of STI-P3.(#  @3.Fiberglass Reinforced Plastic Coated Steel Tanks: Steel tanks may be provided with a 1/8-inch nominal fiberglass reinforced plastic coating.(#  @4.Piping and Fittings: Protective coatings shall conform to the requirements of Section ????? - Protection of Buried Steel Piping and Steel Bulkhead Tie Rods.(#  @5.Protective Coating Systems: Protective coating systems, including FRP coated steel tanks, 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.(# 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 in accordance with Mil. Spec. MIL-P-23236, Type I, Class 3, bond or tie coat in accordance with specifications of manufacturer of prime coat and two finish coats of vinyl paint in accordance with SSPC - Paint 9. Internally coat aboveground steel storage tanks with capacities in excess of 20,000 gallons in accordance with Section ????? - Coating Systems, Interior Welded-Steel Tanks (for Petroleum Fuel Storage). Prior to internal coating as described above, unsealed lap seams shall be sealed with epoxy cement in accordance with Mil. Spec. MIL-C-24176, Type II. Inaccessible voids shall be filled with epoxy cement prior to application of the coating.(#@ 2.02 FUEL OIL HEATING AND PUMPING: A.@Storage Tank Heater: Vertical type installed through a [ ] 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 [ ] gpm of No. [ ] fuel oil from [ ] $F to [ ] $F when supplied with [  psig steam] [  gpm of   $F hot water]. Coil shall have steel tubes and be designed for working pressure of [ ] 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 or cast iron heads and 3/4-inch O.D. x 16 BWG steel tubes with removable bundles. Construct unit in accordance with Section VIII of the ASME Boiler Pressure Vessel Code and design for [ ] 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 [ ] gpm of No. [ ] fuel oil from [ ] $F to [ ] $F when supplied with [  psig steam.] [  gpm of   $F hot water.](#@  $ԌC.@Electric Heater: Heater shall be constructed of steel shell and steel flanges and designed for [ ] psig. Heater shall have sufficient capacity to heat [ ] gpm of No. [ ] fuel oil from [ ] $F to [ ] $F while operation on [ ] volts, [ ] phase, [ ] 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.@Oil Pumps: Mil. Spec. MIL-P-17608 suitable for No. [ ] oil at a viscosity of [ ] SSU. Pumps shall deliver [ ] GPM at a developed head of [ ] ft and a suction lift not less than [ ] ft. Mount pump and direct connected electric motor or steam turbine on extended base plate. Provide a drip plan 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.(#@ 2.03 FUEL OIL STORAGE TANK AND ACCESSORIES: A.@Fuel Oil Storage Tanks: Construct fuel oil tanks of steel, fiberglass reinforced plastic (FRP), or fiberglass reinforced plastic coated steel to comply with NFPA 30 and NFPA 31. [Each fuel oil tank shall have a [ ]-inch diameter manhole on top, wit 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.Horizontal steel tanks, regardless of coating type, Mil. Spec. MIL-T-462 or UL 58 or STI P3.(#  @2. FRP tanks Mil. Spec. MIL-T-52777.(#@  @3.Vertical steel tanks API 650 and shall have center sumps with a 5% slope cone bottom.(#  @4.Epoxy grout inside roof plate lap joints on API 650 tanks to prevent moisture entrapment.(# C. Connections to Fuel Oil Tanks:  @1. Goose-neck type vent caps or type conforming to Mil. Spec. MIL-C-19902.(#@  @2.Provide fill lines with removable single strainer and lock type fill boxes.(#  $ Ԍ @3.A sounding connection, to permit entry of the gaging rod, with a lock type cap.(#  @4.Pump suction lines with internal vertical pipes extending to within 6 inches of tank bottom.(#  @5.Design fuel oil supply and fuel oil return piping to allow for ample tank movement and pipe expansion.(#  @6.Provide flexible hose connections for vibration isolation of oil burning equipment.(#  @7.On 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. On steel tanks weld a 12-inch by 12-inch by 1/4-inch steel striker plate.(#  @8.Provide pipe connections to steel tanks with dielectric fittings.(#  @9.Provide holddown straps for steel tanks with inert insulating dielectric material between strap and tank.(# PART 3: EXECUTION 3.01 INSTALLATION: A.@General Installation 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 tank.(#@ B.@Pipe Sleeves: Provide pipe sleeves 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/sq ft. 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.(#@ $ ԌD.@Steel Piping: Steel piping 2 inches and smaller shall be threaded or socket-welded. Steel piping 2-1/2 inches and larger shall be flanged or butt-welded. Piping joints shall conform to ANSI B 31.4.(#@ E.@Screwed Joints in Piping: Use cylinder and oil and graphite or graphite pipe-joint compound conforming to Mil. Spec. MIL-T-5544 applied to male threads only for making up screwed joints. Red or white lead and zinc compound conforming to Mil. Spec. MIL-T-22361 may be used. Lubricate threaded pipe joints, as well as bolts and studs used on high temperature pipe joints up to 1050$F, with anti-seize compound in accordance with Mil. Spec. MIL-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.(#@ F.@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 in accordance wit ANSI B 31.3.(#@ 3.02 WELDING: A.@Welding Procedure Specifications: Before any welding is performed, the Contractor shall submit to the Contracting Officer three copies of his welding procedure specification for metals included in work, together with proof of its qualifications as outlined in ASNI B 31.1.(#@ B.@Performance Qualification Record: Before any welder or operator shall perform any welding the Contractor shall also submit to the Contracting Officer three copies of the Welder's Performance Qualification Record in accordance with 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.(#@ C.@Previous Qualifications: Welding procedures, welders, and welding operators previously qualified by test may be accepted for this contract without requalfication 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.(#@  $ ԌD.@Welding of Piping: Welding of joints in piping, butt welds, fillet welds, bends, loops, offsets, and cleaning of pipe shall be in accordance with ANSI B31.1.(#@ E.@Quality of Welds: Quality of welds, correction of defects, stress relieving, and preheating shall be in accordance with ANSI B 31.1.(#@ F.@Arc Welding and Gas Welding: In accordance with ASME Boiler and Pressure Vessel Codes, Section IX.(#@ 3.03 ACCESSORIES: A.@Unions and Flanges: Place unions and flanges where necessary to permit easy disconnection of piping 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 pipe lines 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: Provide thermometers and thermal sensing elements of control valves with separable sockets. Install separable sockets in pipe lines in such a manner to sense the temperature of flowing fluid and minimize obstruction to flow.(#@ 3.04 FUEL OIL STORAGE TANKS: A.@General: Install storage tanks and vents and other connections in accordance with NFPA 30, NFPA 31, recommendations and published instructions of the manufacturer, and as indicated. Concrete shall have a compressive strength of [ ] psi, [3/4 inch] [ ] maximum aggregate size and [3 to 4] [ ] inches slump. Materials for sand, gravel, and concrete shall meet requirements specified in Section [03300 - Structural Concrete.] [Section 03316 - Structural Concrete, Minor Quantities.] Excavation and backfill for storage tank installation shall comply with Section ????? - Earthwork.(#@ B.@Aboveground Fuel Oil Tanks: Set aboveground fuel oil tanks on firm foundation of masonry, concrete, or steel conforming to shape of tank, or on heavy angle knees welded to tank.(#@  $ ԌC.@Underground Fuel Oil Tanks: Tanks shall rest on a full length concrete pad with hold down straps. Provide a minimum of 6 inches of clean sand between steel tank and pad and a minimum of 12 inches of pea gravel between fiberglass reinforced plastic tank and pad. Tanks shall have a cover of earth of not less than 2 ft in non-vehicular traffic areas and a cover of not less than 3 ft in vehicular traffic areas, with pipe connections at top of tank.(#@ D.@Backfill: Backfill for steel tanks may be either sand or pea gravel. Backfill for fiberglass reinforced plastic tanks shall be pea gravel. Backfill shall be well compacted, particularly under the tanks, in order to provide adequate support. Before placing tank into excavation, foreign materials shall be cleaned from tank. Excavation shall be free from all materials that may cause damage to the tank or tank coating. Tanks shall be carefully lifted and slowly lowered into the ground. Under no circumstances shall lifting devices damage the tank or tank coating. Handle tanks during transportation in such a manner as to prevent damage to tank and protective coating.(#@ 3.05 FIELD TESTS: A.@General: Prior to application of test pressure, remove or valve off piping components which may be damaged by test and install a currently calibrated test gauge in the system. Maintain test pressure for at least one hour. In the event of leakage, locate and repair leak and repeat test.(#@ B.@Piping Test: Before backfilling of pipe trenches, perform 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: Field-test tanks in accordance with 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): Tests in accordance with Mil. spec. MIL-T-52777.(#@ PART 4: MEASUREMENT AND PAYMENT 4.01 METHOD OF MEASUREMENT: A.@Units: The work described in this section will not be measured for payment.(#@  $ Ԍ4.02 BASIS OF PAYMENT: A.@Payment: No direct payment for the work described under this section will be made. Contractor shall include consideration for this item in the bid price for other items of the Contract.(#@ ,END OF SECTION