MSS Code

Description

SP-6

Standard finishes for contact faces of pipe flanges of valves and fittings

SP-9

Spot facing for bronze , iron and steel flanges

SP-25

Standard marking system for valves, fittings, flanges and unions

SP-42

Class 150 corrosion resistant gate, globe, angle and check valves with flanged and butt weld ends

SP-54

Quality standard for steel castings - radiographic inspection method for valves , flange, fittings and other piping components

SP-55

Quality standard for steel castings for valves, flanges and fittings and other piping components

SP-60

Connecting flange joint between tapping sleeves and tapping valves

SP-61

Hydrostatic testing of steel valves

SP-67

Butterfly valves

SP-70

Cast iron gate valves , flanged and threaded ends

SP-71

Cast iron swing check valves, flanged and threaded ends

SP-72

Ball valves with flanged or butt - welding ends for general service

SP-78

Cast iron plug valves

SP-80

Bronze Gate, globe angle and check valves

SP-81

Stainless Steel, Bonnetless, Flanged Knife Gate Valves

SP-82

Valves pressure testing methods

SP-84

Steel valves socket welding and threaded ends

SP-86

Metric data in standards for valves , flanges and fittings

SP-88

Diaphragm Type Valves