WW-T-799a ‘Tubing, Copper, Seamless (for use with solder ov flared-fittings) with Amendment #1, WW-V~512 Vaives, nrass cor brorse, angle and HH-lM-61 4 Magnesia: Block, Cersnt end pipe coverings (Molded) Biobe, 1LSU-pound STP, 20-04, MATERIALS: Except ac otherwise called for on the drawings or hereinafter ntherwise specified, materials shall be as follows: a. Cast Iron Fittings, All cast iron fittings includ- ing elbows, tees, wyes. reducers, etc, for salt end fresh water system shall conform to the American Water Works Stan - dard Specification for Class 150-pound and shall be all-bell type. bd. Cast Iron Flanged fittings, inclucinz elbows, tees, reducers, etc., shall conform to American Stmdard (B-16,1194.8) for Class 125-pound including drilling. c. Flanges, All flanges shall be forged steel welded, slip-on type wth flat face and shall be in accordance with American Standard (B-16.1-1948) for Class 150-pound, drilled, Flanges shall be similar to Crane No. 55h. d. Joint Compound, All joints for fittings on salt or fresh water pressure lines shall be compound sulphur joints. Joint compound shall be "Hydro-Tite" or approved equal. e. Flenged Couplinzs for Pressure Lines: (1) Flanged couplings for fresh or salt water pressure lines shall consist of two steel flanges, a middle ring of specified thickness and length, two rubber gaskets, and necessary bolts and nuts. The coupling shall insure permanently tight joints under reasonable conditions of expansion, contraction and shifting of couplings and shall be similar to Dresser Style No. 38, ed equal. or Baker Company, or approv- (2) Single Flanged couplings for fresh or salt water pressure lines shall consist of two malleable iron halfhousings, two bolts and a leak-proof ring. The pipe or fitting ends shall be grooved to match coupling. The couplings shall be Victaulic, or approved equal. 20=2