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t <br /> 1 <br /> SPECIFICATION <br /> GUIDE SPECIFICATIONS-DOUBLE WALL FIBERGLASS REINFORCED PLASTIC (FRP) UNDERGROUND <br /> STORAGE TANKS <br /> SHORTFORM: 2. Both primary and secondary tanks shall be individually vented to <br /> I atmospheric pressure. The tanks are not designed as pressure <br /> The contractor shall provide Double Wall Fiberglass Reinforced Plastic(FRP) vessels. <br /> U.L.labeled underground storage tanks as shown on the drawings.Sizes and 3. Tanks shall be capable of storing gasoline or gasohol(10°.ethanol <br /> fittings shall be as shown.The tanks shall be Century-Cast"Tanks as manu• and 90%gasoline mixure),jet fuel,diesel fuel,(AV gas,potable wa- <br /> factured by XERXES CORPORATION. ter at ambient underground temperature or fuel oil at temperatures <br /> Tanks shall be tested and installed with pea gravel or crushed stone as specified not to exceed 150'F <br /> in the current installation instructions provided with the tank. C. Each tank shall be equipped with two 22" I.D. manways. Each steel <br /> manway cover shall have three 4'NPT fitting welded in place. <br /> j LONG FORM: Section 15177-1 D. Materials: <br /> 1. Tanks(Primary and Secondary)shall be manufactured with 100°. <br /> Part I General isophthalic polyester resin and glass fiber reinforcement with no sand <br /> 1.01 Related Work Specified in Other Sections fillers. <br /> A. Liquid Level Gauges:Section 15174 E. Annular Space <br /> B. Plastic Pipe:Section 15064 1. Tank shall have a space between the primary and secondary shell <br /> C. Anchor Bolts:Section 05501 walls to allow for the free flow and containment of all leaked product <br /> D. Cast-in-Place Concrete:Section 03300 from the primary tank.Space also allows the insertion of a monitor- <br /> 1.02 Quality Assurance ing device through a monitoring fitting. <br /> A. Acceptable Manufacturer:XERXES CORPORATION F Tank Dimensions(Refer to Xerxes literature on gallonage.) <br /> B. Governing Standards;primary tank 1. Tanks shall have nominal capacity of gallons. <br /> t 1. ASTM standard document number D4021.81 2. Tank shall have nominal outside diameter feet. <br /> I 2. Underwriters Laboratories,Inc.(U.L.)File MH 9061 (N)for storage 3. Tank shall have approximate overall length of feet. <br /> of flammable liquids.A U.L.certification plate shall be attached to 2.02 Accessories <br /> j each tank. A. Anchor Straps-Provide FRP anchor straps as manufactured by tank <br /> 3. National Fire Protection Association (NFPA30) Flammable and manufacturer.Number and location of straps shall be specified in current <br /> Combustible Liquids Code and(NFPA31)Standard for Installation installation instructions of tank manufacturer. <br /> of Oil Burning Equipment. B. Manways <br /> 4, National Sanitation Foundation,Standard 14. 1. All manways to be flanged and 22"I.D. complete with U.L. listed <br /> j 5. Factory Mutual Systems approval J.I.1G4AOAF gaskets,bolts and covers.(30"I.D manway is also available.) <br /> t 6. Military Specifications No.MIL-T-52777(A). 2. Location as shown on drawings. <br /> C. Governing Standards:secondary tank: 3. Manway extension tubes shall be FRP and 24"long for manways <br /> 1. Underwriters Laboratories,Inc.(U.L.)File MH 9061 (N)for storage shown on drawings. <br /> 1 of flammable liquids.A U.L.certification plate shall be attached to 4. Each steel manway cover shall have three-4"NPT fittings welded <br /> each tank. in place. <br /> 2. National Fire Protection Association (NFPA30) Flammable and C. Fill Tubes <br /> Combustible Liquids Code and(NFPA31)Standard for Installation 1. Tubes shall be FRP and factory installed by manufacturer. <br /> of Oil Burning Equipment. 2. Location as shown on drawing. <br /> ' 1.03 Submittals 3. Tubes shall be 4"diameter with 6"steel fitting and a 6"x 4'double <br /> A. Shop Drawings:Contractors shall submit copies of shop draw- tapped reducer bushing, <br /> Ings for each tank.Drawings shall show locations of all fittings,acces- D. Gauge Plate-Shall be installed at location shown on drawing. <br /> sones,and critical dimensions. E. Heating Coils <br /> B. Catalog Data:Contractor shall submit copies of manufacturer's <br /> literature to include copies of manufacturer's current installation 1. Heating Coils shall be installed in a separate 22"manway and shall <br /> nstruction. be standard items supplied by tank manufacturer. <br /> { 2. Location as shown on drawings. <br /> Part II Products F. NPT Threaded Fittings <br /> 1. All threaded fittings shall be a material of construction consistent <br /> 2.01 Double Wall Fiberglass Reinforced Plastic(FRP)Underground Storage with the requirements of U.L.label. <br /> Tanks with a Primary(internal)tank and a Secondary(external)tank. 2. All standard thread fittings shall be half couplings and shall be 4"in <br /> A. Loading Conditions-Talk shall meet the following design criteria: diameter.Reducers are to used for smaller sizes where shown and <br /> g 1. Internal load:Primary and Secondary tanks shall withstand 5 psi air provided by contractor <br /> pressure test with 5 to 1 safety factor.Contractor shall individually 3. Sizes Standard Other Sizes <br /> test tanks prior to installation as this is to test for leakage.Maximum Fill 4" <br /> test pressure is 5 psi. Gauge 4" <br /> 2. Vacuum Test: Every tank shall be mercury vacuum tested by the _ Inlet 4" <br /> tank manufacturer to assure structural integrity. Primary tank shall Outlet 4" <br /> be tested to 11.5 inches and secondary tank tested to 9.5 inches Vent 4" <br /> i mercury vacuum. 4. Suction Line-Shall be installed by contractor on site. Pipes shall <br /> 3. Surface Loads:Tank shall withstand surface H-20 axles loads when terminate a minimum of 4"from bottom of tank. <br /> properly installed according to current manufacturer's installation <br /> 5. Return line shall be installed by contractor. <br /> instruction. <br /> 4. External hydrostatic pressure:Tank will withstand 4'of overburden G. Monitor Fttings <br /> with the hole fully flooded with a 3:1 safety factor against buckling. 1. Tank shall have two test monitor fittings consisting of a 2"NPT fitting <br /> i 5. Tanks shall support accessory equipment such as heating coils,drop on the primary tank and a 6'NPT fitting directly above on the sec- <br /> 1t tubes,submersible pumps,ladders when installed according to lank ondary tank. <br /> manufacturer's recommendations and limitations. 2. Tank shall have two monitor fittings,one near each end of the tank. <br /> B. Product Storage: <br /> 1. Tanks shall be capable of storing petroleum with specific gravity up <br /> tI to 1.1. <br /> E <br /> • <br /> CENTURY <br /> HEIL PROCESSX E ESO I ORNYTE•FIIBERGLASS EQUIPMENT <br /> C.F 123'DWT 785 CORPORATION <br /> I <br />