Historical
MSS SP-79-2018
Socket-Welding Reducer Inserts
This Standard Practice covers ratings, dimensions, tolerances, finish, marking and material requirements for socket-welding reducer inserts for use with ASME B16.11, Class 3000 and 6000 socket welding fittings. U.S. customary unit dimensions for these reducer inserts are shown in Table 3 and SI (metric) dimensions are shown in Table 3M.
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]
