Laserfiche WebLink
Oe/01/94 14:31 V805683val R P RICHARDS <br />c -® LEO EGER $0 5a' 13: <br />A spacial air cast orocodure is required tar dou- <br />ble-wal tardt3 that oo not include factory <br />installed antifreeze. A soec;a( air test rstare is <br />shipped with the tank. Fiberglas tanks must <br />be pressurized and inspected for leaks using a <br />soapy water solution Leak testing prior to <br />irsta.tation helps insure that norglas tanks <br />were not damaged in shipment. <br />If the double-wall tanks are shipped with facto- <br />ty instailed monitoang fkaic, a simplified jobsite <br />hydrostats test procedure can be used <br />Installation for double-wall tanks ,s similar to <br />the procadurs for single -veil tanks. Owens - <br />Coming requires pea gravel or cr ushad stone <br />backfill material; pea gravel is a naturally <br />rounded aggregate ranging from IZ to ala' <br />diameter. Washed crushed stone (tie' to 112' <br />diameter) meeting ASTM C-33 may be used. <br />Other backfill materats must not be .(sed <br />without consulting Owens-Corning for written. <br />approval. A minimum of 12° backfill bedding is <br />required between the tank and the excavation <br />bottom or concrete anchoring pad. Tanks <br />must not be installed on timbers. beams or <br />cradles. <br />If the Hydrostatic Tank Monitoring system is <br />ctivateo by filling a: the jocsite, the tar,x cavi- <br />ty must to filled by pouring the liquid into the <br />cavity. Depeneing CA local ;iimate, use tap <br />water or an acceptable antifreeze mixture as <br />the mcmitcnng fluid. <br />A!1 tanks must be vented. Fiberglas tanks are <br />designed for operation at atrraspheric pros <br />sure only, except when using vapor recovery <br />systems, provided the presswe or vacuum <br />does not exceed 1 psi maximum on the prima- <br />ry tank. Overpressurizing of the primary tank <br />will result in tank failure. The monitoring cavity <br />between the inner and outer tank mist be <br />vented;ndependent(y from the primary tack. <br />For additional details, request Underground <br />Tank Installations (Owens-Corning pub;icatien <br />number 3 -PE -83041. Properly insta!ied. <br />Fiberglas underground petroleum storage <br />tanks can provide extended service in storing <br />petrel6t.rn products without corrosion -caused <br />leaks and without maintenance. <br />Owens-Cornirg ma:ntakts a listing of over <br />2,000 independent contractors who have <br />received educational materials from Owens- <br />'orring covering the proper installation of <br />„nderground Fiberglas tanks. On request. we <br />can Prov°de names of educated contractors. <br />Double -Won Fiberglas Tanks For Fuel <br />Storage Modal DWT -Typo 11 <br />Specification: Short Form <br />The contractor shall provide U.L. labeled <br />Model 07W -Type if dcuble-wall ftengtas <br />underground storage tanks in sizes and with <br />firings as shown on :he drawings. The tanks <br />shall be manufactured by Owens -Coming. <br />Tanks shelf be tasted and installed w;th W <br />gravel or approved alternate t:ackfdl material <br />according to the current installation instt.c- <br />tions (Owens -Coming publication 3-PM04) <br />;:*video with the tank. <br />Long Forth: Section 19200 <br />Guide Specification <br />Owens -Coming Double -Wall Fiber Glass <br />Reinforced Polyester Underground <br />Stoags Tanks <br />Part I dsttaral <br />1.01 Related Work SpeeXed in Other <br />Sections <br />A. Cas: -in -Place Concrete: Section 03300 <br />8. Anchor Bots: Section 0501 <br />C. Mastic Pipe: Section 15064 <br />0. Liquid Level Gauges: Sea�ort 15174 <br />E. Other Related Work -- such as Excavation. <br />and Boiler Equipment <br />1.02 Cuo!!ry Assurance <br />A. Acceptable Manufacturers: Cwens. <br />Corning Fiberglas Corporation, Toteco. Ohio. <br />B. Governing Standards: <br />1. ASTM Specification 04021-eS. Glass Fiber <br />Re;n'orced Pc:yester Ureergrcund Petroleum <br />Storage Tanks. <br />2. U.L.1316. Underwriters Laboratories, (no., <br />Glass Fiber Reinforced Plastic Urde,-ground <br />Storage Tanks for petroleum Products. <br />3. National Fire Protection Assoc. (NFPA 30) <br />Flammable and Combustible Liquids Cade and <br />(NFPA 31) Standards for installation of Oil <br />Burning Equipment. <br />4. General Services Administration, Public <br />Building Service Gulde Specification, PBS: <br />1568. <br />1.03 submittals. <br />A. Shop Drawings: Contractors Shap submit <br />—copies of shop drawings for eact• tank. <br />Drawings shall include all critical dimensions <br />and show locations of ail fittings and acces- <br />sories, i.e.. ntanways, ladders. hold-down <br />straps, heating coils. ctc. Materiais of con- <br />struction shall be in accoroance with Section. <br />1.02 of this specificaton. <br />B. Catalog Data. Contractor shall submit <br />copies of marufacturer's literature. <br />C. Cartifreation Plate: U.L. labels shail tie <br />affixed to each tank. <br />O. Installation Instructions: Contractors <br />shall submit copies of manufacturer's <br />latest insta3ation instructions. <br />E Calibration Charts: Contractors shall sub- <br />mit copies of manufacturer's latest <br />ca'ibraacn charts. <br />(a006/009 <br />t-. Q <br />Part h Products <br />2.07 DovW@-Wali F7ber91ss Underground <br />Storage rinks <br />A. loading Conditions --Tank shall most <br />the following design criteria: <br />1. External hydrostatic pressure: Burred 'vt <br />ground with 7' of over burden over the top of <br />the tank, the hole fully flooded and safere fac- <br />tor of 5:1 against general buckling. <br />2. Surface loads: When installed according to <br />mantdacture•'s installation instructions. tanks <br />will withstand surface H-20 axle loads 132.000 <br />Ibslaxle). <br />3. Internal load. Primary ane secondary tanks <br />shall withstand 5 psi air pressure test with 5:1 <br />safey factor. <br />4. Tanks stall be designed to support acces- <br />sory equipment such as heating coils. ladders. <br />drop tubes, etc, when installed according to <br />manufacturer's recommendations and <br />limitations. <br />S. Tank laminate shah include fillets. <br />B. Product Storage Requirements: <br />I. All primary tanks must U vented. Tanks <br />are designed for operation at atmospheric <br />pressure only, except for vse with vapor <br />recovery systems at a pressure or vacuum <br />of approximately 1 psi. <br />2. Yanks shall be cacable of storing liquids <br />with specific gravity up to 1.1. <br />3. Maximum tenperawre: Tank shalt be <br />capable of storing gasoline. alcohol blendcc <br />gasoline (with up to 100% methanol ct <br />ethanol), oxygenated fuels (up to 20% MTHE;, <br />ay.gas. jet fuel, motor oil, (new or used). <br />kerosene, d:esal feel or potable water at am.^i <br />ent underground temperatures not to exceed <br />150"F at the tank interior surface. <br />s. Tanks shall be chem:cally;nen to petrole- <br />um products. <br />C. Dimensional Requirements <br />(refer to Owens-Corning literature on ga:lcraye). <br />1. Ncmxrai capacity of the tank shad be joto <br />gallons. <br />2. Nominal outside diameter of the tanks sr•.all <br />be agfni feet. <br />3 Nq, nal overall length of the tanks sl-.a!l be <br />sleet. <br />D. Monitoring Capabilities: <br />1. Tar^<s shall have a spats terween the pri- <br />mary and secondary shell walls to allow for :he <br />free flow and containment of a'I teaked <br />product from the primary tang. <br />2. The following continuous mo^,itorng cc' <br />shall be cornpatVa with the cavity <br />between the inner and outer tanks: <br />eVerted to atmosphere <br />*Vacuum -- 5 psi maximum <br />*Positive air pressure (3 psi raximin) <br />44•Hydrestatic pressure —7 (cot maximur.. <br />g•oundwater head pressure over tank tea. <br />