MSS - Valve Standards

Manufacturers Standardization Society - MSS - of the Valve and Fittings Industry - valve standards

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MSS SP-6
Standard finishes for contact faces of pipe flanges of valves and fittings
MSS SP-9
Spot facing for bronze , iron and steel flanges
MSS SP-25
Standard marking system for valves, fittings, flanges and unions
MSS SP-42
Class 150 corrosion resistant gate, globe, angle and check valves with flanged and butt weld ends
MSS SP-54
Quality standard for steel castings - radiographic inspection method for valves , flange, fittings and other piping components
MSS SP-55
Quality standard for steel castings for valves, flanges and fittings and other piping components
MSS SP-60
Connecting flange joint between tapping sleeves and tapping valves
MSS SP-61
Hydrostatic testing of steel valves
MSS SP-67
Butterfly valves
MSS SP-70
Cast iron gate valves , flanged and threaded ends
MSS SP-71
Cast iron swing check valves, flanged and threaded ends
MSS SP-72
Ball valves with flanged or butt - welding ends for general service
MSS SP-78
Cast iron plug valves
MSS SP-80
Bronze Gate, globe angle and check valves
MSS SP-82
Valves pressure testing methods
MSS SP-84
Steel valves socket welding and threaded ends
MSS SP-86
Metric data in standards for valves, flanges and fittings

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