ASME B16.15 pdf download Cast Copper Alloy Threaded Fittings Classes 125 and 250 1 SCOPE This Standard covers cast Classes 125 and 250 coppelalloy threaded pipe fittings with provisions for substituting wrought copper alloys for plugs,bushings,capsand couplings in small sizes. This Standard includes(a) pressure-temperature ratings (b) size and method of designating openings of reduc-ing pipe fittings (c) marking requirements (d)...