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Sc—p-04-96 10:02A THORNTON & SON _ 408 946 1015 P.06 <br /> •^��••sd1 PAGE 02/85 <br /> DOUBLE WALL TANKS <br /> ?Voveryiber J vjj <br /> Pion eerrng'Pirar� iidy Confainment Systems <br /> f <br /> The tank ehaltik'' cated under every <br /> opening. The plater shall be quarter inch(T{41'thick steel and be <br /> larger in diameter than the tank manhole mWorslall be twelve <br /> inches (1.2")square under NPT tank openings, 7- be primary tank <br /> shall be constructed In accordance with UL-56 aud VLC m.1 <br /> requirements- The tank shall be equipped wft the appropriate <br /> removable lift lugs which facilitate site handling and Installation. <br /> Lift lugs shall be capsble of withstanding weight of tank with a <br /> Safety factor of 3 to 1. <br /> The tanks shall be constructed with fittings as indicated on accom- <br /> panying drawings. The outer tank shell shall be constructed with <br /> High Density,Polyethylene (HDPE) no less than 100 rail thick and <br /> wel It It] to HDPE roto molded heads no less than 250 mils tbick- <br /> Fiffings <br /> The tank shall be supplied with __four inch(4")and two <br /> inch f?"I threaded openings. Each threaded-,opening will include <br /> `.f'': LnternaI threads and reversed externd2 threads and will pro- <br /> s r-m I- upward through the tank shell. External threads shall be <br /> ut i I i ie.l to seal outer tank with compression rings. The fittings <br /> sha`? h(• located as indicated on the drawings. <br /> Double Ding Manhoie and Sump Mounting 16 <br /> T.}r 6- shall be supplied with i _ double ring Q*)reverse flange <br /> ma!shales with two sets of studded bolts. EaclaiQ ole shall be <br /> sur-,�I oed with lid in place, neo-cork gasket underneath and the <br /> apr r>>priate numbe '-of washers and nuts vedarWtighteued about <br /> the inner ring of studded bolts. lank sth 4Aiio be,supphed with a <br /> manhole sump mounting kit(shipped I each double ring <br /> (DR) manhole. This kit shall cn - ' t+e number of <br /> washers and nuts,one(1)>1< e' )piece steel <br /> compression ring which will b41 °#0: mounting of a <br /> high density poM�ieue'maAA.,Y - ;`� ` onto the outer sing <br /> IF <br /> ..'�TOI:•�1� <br /> CONTAIN MENT <br />