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14 • 4.Tanks shall be designed to support accessory equipment such as heating coils, ladders,drop tubes, etc.when installed according to manufacturer's recommendations and limitations. B.Product Storage Requirements: 1:All tanks must be vented.Tanks are designed for operation at atmospheric pressure only, except for use with vapor recovery systems providing the pressure or vacuum does not exceed 1 psi. 2.Tanks shall be capable of storing liquids with specific gravity up to 1.1. 3. Maximum temperature.Tanks shall be listed by a nationally recognized laboratory and capable of storing gasoline, gasohol (90%gasoline and 10% ethanol mixture),90.5%gasoline and and 9.5% Oxinol-50' (4.75% methanol and 4.75% GTBA mixture), E. Heating Coils/Hotwells av gas,jet fuel, diesel fuel, motor oil or oil at temperatures not to 1. Heating Coils-shall be standard item as manufactured and/or exceed 150°F at the tank interior surface. supplied by the tank manufacturer including 22" manway. 4.Tanks shall be chemically inert to petroleum products. 2. Location-refer to drawings for location. C. Dimensional Requirements(refer to Owens-Corning literature F. Fittings-Threaded-NPT on gallonage.) 1.All threaded fittings on U.L.-labeled tanks for storage of petroleum 1. Nominal capacity of the tank shall be gallons. products shall be of a material of.construction consistent with the 2. Nominal outside diameter of the tanks shall be feet. requirements of the U.L.-label.All fittings to be supplied with 3.Approximate overall length of the tanks shall be feet. threaded plugs. 2.All standard threaded fittings are 4" in diameter and shall be half couplings. Reducers are to be used for smaller sizes where 2.02 Accessories specified and provided by contractor. 3 A.Anchor Straps-Provide glass fiber-reinforced plastic anchor .Thread Standards-All threaded fittings shall have machine tolerances in accordance with the ANSI standard for each straps for each tank shown. Number and location of straps shall be as specified by manufacturer. Each strap shall be fitting size. capable of withstanding the bouyancy load for tank diameter 4. Strength-NPT fittings will withstand a minimum of 150 foot- as shown. pounds of torque and 1,000 foot-pounds of bending, both with 4'0- 4,200 lbs. 8'0-25,000 lbs. 12'�-26,000 lbs. 2:1 factor of safety. 6'0-18,OOO lbs. 10'x-32,000 lbs 5. Sizes Standard Other Sizes Straps shall be standard as supplied by the tank manufacturer. Inlet 4" --. Outlet --__- 4" B.Certification Plate-Underwriters' Laboratory label Vent 4" shall be permanently affixed to each tank. Gauge 4" Fill' 4- C Flanged Manways 1.The standard manways to be 22" I.D. the 30" and 36" I.D. 6. Location-refer to drawings for location. manways to be installed in 6',8', 10' and 12'diameter tanks 7. Suction Line-Shall be installed on site by the contractor. only. Diameter of pipe and grade and schedule as called out in other i 2.All manways will be furnished complete with U.L.approved sections. gaskets, bolts and covers. 8. Return Line-Shall be installed on the site by the contractor. 3. Location-refer to drawings for location. Diameter of pipe and grade and schedule as called out in other sections. 4 4. Manway risers 48" in diameter,and 42" high will be supplied to provide access to the manway lid.A 9. All rigid piping shall terminated a minimum of 4" from the eight bottoms of four, six,eight and ten foot diameter tanks, and a 24" x 24" galvanized street box with a cover must be minimum of 6" from the bottoms of twelve foot diameter tanks. provided by contractor for at grade installation. G. Ladders-Shall be standard carbon steel supplied by the tank 5. Fiber glass manway extension tubes 24" long will be • manufacturer. Refer to drawings for location. provided for the manways as outlined in section 3 above. D. Fill Tubes H. Lifting Lugs-Provide lifting lug(s)on all tanks. Lugs shall be capable of withstanding weight of tank with a safety factor of 1.Tubes shall be fiber glass-reinforced plastic. 3 to 1. 2.Tubes shall be factory installed,4" diameter,and shall include a 6" steel fitting with a double tapped reducer bushing to 4" diameter. Part III Execution 3.Tubes shall be standard items as manufactured and installed 3.01,3.02 Installation and testing by the tank manufacturer. Tanks shall be tested and installed according to the current 4. FRP fill tubes supplied by Owens-Corning.Other fill tubes of installation instructions provided with the tank(refer to Owens-Corning =_ appropriate design can be supplied by contractor. Fiberglas publication 3-PE-6304 and include as part of your 5. Location-refer to drawings for location. specification). 'TM Arco Chemical Co.