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C. Dimensional Requirements(refer to Owens-Corning literature on Location— gallonage.) 5. Location—refer to drawings for location. 1.Nominal capacity of the tank shall be E. Heating Coils/Hotwells gallons. 1. Heating Coils—shall be standard item as manufactured and/or 2.Nominal outside diameter of the tanks shall be feet. supplied by the tank manufacturer including 22" manway. 3.Nominal overall length of the tanks shall be feet. 2. Location—refer to drawings for location. D. Annular Space F. Fittings-Threaded—NPT 1. Tank shall have a space between the primary and secondary 1. All threaded fittings on U.L.-labeled tanks for storage of petroleum shell walls to allow for the free flow and containment of all Products shall to located in the manway lid(s)and be con- leaked product from the primary tank. th 2. Tank shall be designed to provide monitoring capabilitstructy do besuppled with threadedc cast ironwith the reuirementsf lu s.L.L.-label. y as nt Fiffing noted: ittin p g a. Accessibility to the tank bottom between the primary and 2 coluplings.r Reducers arthreaded e fittings be used fordter smaller sizes whand eree half secondary walls at both ends of the tank. Tanks shall have specified and provided by contractor. one4"NPTfitting located ateach end ofthetank. 3. Thread Standards—All threaded fittings shall have machine b. The following continuous monitoring conditions are compatible tolerances in accordance with the ANSI standard for each fitting with the cavity between the inner and outer tank: size. • Vented to atmosphere 4. Strength—NPT fittings will withstand a minimum of 150 foot. • Sealed tank cavity pounds of torque and 1,000 foot-pounds of bending, both with • Vacuum-3" mercury maximum (1.5 psi max.) 2:1 factor of safety. • Positive air pressure(3 psi max.) 5. Sizes • Hydrostatic pressure-7 foot maximum head pressure over Inlet Standard Reducer Sizes tank top. 4 11 Outlet 4'" Vent 4" Gauge 4" 2.02 Accessories Fill 4" A. Anchor Straps—Provide glass fiber-reinforced plastic anchor straps 6. Location—refer to drawings for location. for each tank shown. Number and location of straps shall be as 7. Suction Line-Shall be installed on site by the contractor. Diameter specified by manufacturer, Each strap shall be capable of with- of pipe and grade and schedule as called out in other sections. standing the buoyancyload for tank diameter as shown. 8. Return Line—Shall be installed on the site by the contractor. 4'0— 4,200 lbs. 8'0-25,000 lbs. Diameter of pipe and grade and schedule as called out in other 6'¢-18,000 lbs. 10'0-32,000 lbs. sections. Straps shall be standard as supplied by the tank manufacturer. 9. All rigid internal piping shall be terminated 4"from the bottomsof B. Certification Plate—Underwriters' Laboratory label and Factory the tanks. Mutual label shall be permanently affixed to each tank. G. Ladders—Shall be standard carbon steel supplied by the tank C. Flanged Manways manufacturer. Refer to drawings for location. H. Lifting Lugs—Provide lifting lug(s)on all tanks. Lugs shall be 1. The standard manways to be 22" I.D. The 30" and 36" I.D. capable of withstanding weight of tank with a safety factor of 3 to 1. manways are optional. Two 22" standard manways are provided with each tank of 4,000 gal. or more capacity. One 22" standard manway is provided with each tank of 2,500 gal. or less capacity. 2. All manways will be furnished complete with U.L. listed gaskets, Part III Execution bolts and covers. 3.01, 3.02 Installation and testing 3. Location-see standard tank drawings. Tanks shall be tested and installed according to the current installation 4. Manway risers 48" in diameter and 42" high will be supplied to instructions provided with the tank(refer to Owens-Corning Fiberglas provide access to the manway lid. A 24"x 24" galvanized street publication 3-PE-6304 and 3-PE-12681 and include as part of your box with a cover must be provided by contractor for at grade specification). installation. 5. Fiber glass manway extension tubes 24" long will be provided for the manways as outlined in section 3 above. 6. For tanks of 4,000 gal. capacity or more, each standard steel manway cover shall have three 4" NPT fittings welded in place at 120-degrees spacing.For tanks of 2,500 gal.capacity or less, the steel manway cover shall have four 4" NPT fittings welded in place at 90-degrees spacing. The 22" manway cover fittings are on an 8" radius from the center of the cover to the centerline on the fitting. The 30" manway cover fittings are on a 12" radius, the 36" manway cover fittings are on a 15" radius. D. Fill Tubes 1. Tubes shall be fiber glass-reinforced plastic. 2. Tubes shall be factory installed, 4" diameter, and shall include a 6" steel fitting with a double tapped reducer bushing to 4" diameter. 3. Tubes shall be standard items as manufactured and installed by the tank manufacturer. 4. FRP fill tubes supplied by Owens-Corning. Other fill tubes of appropriate design can be supplied by contractor. OWENS-CORNING FIBERGLAS CORP. Non-Corrosive Products Divison Fiberglas Tower,Toledo,Ohio 43659 Pub.No.3-PE-12748-A Litho in U.S.A..June.1985 Copyright ic)1986 Owens-Corning Fibnrnlxe Corporation