MSS(Manufacturers Standardization Society of the Valve and Fittings Industry)
StandardNo. Year Title
1 SP-127 2001 Bracing for Piping Systems Seismic - Wind - Dynamic Design, Selection, Application
2 SP-25 1998 Standard Marking System for Valves, Fittings, Flanges, and Unions
3 SP-42 2004 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 & 600)
4 SP-44 2010 Steel Pipeline Flanges
5 SP-45 2003 Bypass and Drain Connections
6 SP-53 2007 Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components - Magnetic Particle Examination Method
7 SP-54 2007 Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components - Radiographic Examination Method
8 SP-55 2006 Quality Standard for Steel Castings for Valves, Flanges, Fittings and Other Piping Components - Visual Method for Evaluation of Surface Irregularities
9 SP-58 2009 Pipe Hangers and Supports � Materials, Design, Manufacture, Selection, Application, and Installation
10 SP-58 2002 Pipe Hangers and Supports - Materials, Design and Manufacture
11 SP-61 2003 Pressure Testing of Valves
12 SP-67 2002 Butterfly Valves
13 SP-68 1997 High Pressure Butterfly Valves with Offset Design
14 SP-69 2003 Pipe Hangers and Supports - Selection and Application
15 SP-72 2008 Ball Valves with Flanged or Butt-Welding Ends for General Service
16 SP-75 2008 Specification for High-Test, Wrought, Butt-Welding Fittings
17 SP-80 2008 Bronze Gate, Globe, Angle, and Check Valves
18 SP-81 1995 Stainless Steel, Bonnetless, Flanged Knife Gate Valves
19 SP-81 2006 Stainless Steel, Bonnetless, Flanged Knife Gate Valves
20 SP-85 2002 Gray Iron Globe & Angle Valves, Flanged and Threaded Ends
21 SP-88 2010 Diaphragm Valves
22 SP-89 2003 Pipe Hangers and Supports - Fabrication and Installation Practices
23 SP-9 2001 Spot Facing for Bronze, Iron and Steel Flanges
24 SP-93 2004 Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings, and Other Piping Components Liquid Penetrant Examination Method
25 SP-94 2004 Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, Fittings, and Other Piping Components Ultrasonic Examination Method
26 SP-95 2006 Swage(d) Nipples and Bull Plugs
27 SP-97 2006 Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded and Buttwelding Ends
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