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Manufacturers Standardization Society |
Who is MSS?
Officially founded in 1924, the Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association organized for development and improvement of industry, national and international codes and standards for..
▸VALVES ▸VALVE ACTUATORS ▸PIPE FITTINGS ▸VALVE MODIFICATION FLANGES ▸PIPE HANGERS AND ASSOCIATED SEALS
Primary function of MSS
The primary function of MSS is to provide its members the means to develop engineering standard practices for the use and benefit of the industry and users of its products. The Society, the only organization dedicated solely to the technical needs of the industry, is currently comprised of 24 technical committees to write, revise and reaffirm industry standards.
General
Standards organizations in which MSS currently participates include, but are not limited to, the American Society of Mechanical Engineers (ASME), American National Standards Institute (ANSI), American Society for Testing and Materials ASTM), American Petroleum Institute (API), American Waterworks Association (AWWA) and the National Fire Protection Association (NFPA).
| BOARD OF DIRECTORS | |||
| Membership Committee | Finance Committee | ||
| Personnel Committee | Coordinating Committee | ||
| MSS TECHNICAL COMMITTEES | |||
| Cast Iron Valves | Non - Ferrous Industrial Valves | Iron Flanges and Flanged Fittings | Steel Flanges and Flanged Fittings |
| Under writer Valves | Ball Valves | Forged Steel Fittings | Non - Ferrous Fittings and Flanges |
| Water Works Valves and Fittings | Plastic Valves and Fittings | Ferrous Threaded Fittings | Wrought Welding Fittings |
| Steel Valves | Diaphragm Valves | Actuators and pipe hangers | Valve Operation |
| Butterfly Valves | Instrument Valves | Pipe Hangers | Marking & Terminolo gy |
| Fuel Gas Valves, Fittings and Pipe Components Valve Modification |
Valve Actuators | Quality Standards Packings and Gaskets |
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Most recent MSS Standards
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SP-6-2012 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings |
SP-9-2008 Spot Facing for Bronze, Iron and Steel Flanges |
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SP-25-2008 Standard Marking Systems for Valves, Fittings, Flanges and Unions |
SP-42-2009 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 and 600) |
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SP-43-2008 Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
SP-44-2010 Steel Pipeline Flanges |
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SP-45-2003 (R 2008) Bypass and Drain Connections |
SP-51-2012 Class 150LW Corrosion Resistant Cast Flanges and Flanged Fittings |
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SP-53-1999 (R 2007) Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping Components - Magnetic Particle Exam Method |
SP-54-1999 (R 2007) Quality Standard for Steel Castings for Valves, Flanges, and Fittings and Other Piping Components - Radiographic Examination Method |
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SP-55-2011 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Visual Method for Evaluation of Surface Irregularities (ANSI-approved American National Standard) |
SP-58-2009 Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation (ANSI-approved American National Standard) |
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SP-60-2012 Connecting Flange Joints Between Tapping Sleeves and Tapping Valves |
SP-61-2009 Pressure Testing of Valves |
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SP-65-2012 High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens Gaskets |
SP-67-2011 Butterfly Valves |
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SP-68-2011 High Pressure Butterfly Valves with Offset Design |
SP-69-2003 Pipe Hangers and Supports - Selection and Application |
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SP-70-2011 Gray Iron Gate Valves, Flanged and Threaded Ends |
SP-71-2011 Gray Iron Swing Check Valves, Flanged and Threaded Ends |
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SP-72-2010a Ball Valves with Flanged or Butt-Welding Ends for General Service |
SP-75-2008 Specification for High-Test, Wrought, Butt-Welding Fittings |
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SP-78-2011 Gray Iron Plug Valves, Flanged and Threaded Ends |
SP-79-2011 Socket Welding Reducer Inserts |
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SP-80-2008 Bronze Gate, Globe, Angle, and Check Valves |
SP-81-2006a Stainless Steel, Bonnetless, Flanged Knife Gate Valves |
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SP-83-2006 Class 3000 Steel Pipe Unions Socket Welding and Threaded |
SP-85-2002 Gray Iron Globe and Angle Valves Flanged and Threaded Ends |
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SP-85-2011 Gray Iron Globe and Angle Valves, Flanged and Threaded Ends |
SP-86-2009 Guidelines for Metric Data in Standards for Valves, Flanges, Fittings, and Actuators |
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SP-87-1991 (R 1996 - Reinstated 2011) Factory-Made Butt-Welding Fittings for Class I Nuclear Piping Applications |
SP-88-2010 Diaphragm Valves |
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SP-91-2009 Guidelines for Manual Operation of Valves |
SP-92-2012 MSS Valve User Guide |
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SP-93-2008 Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings, and Other Piping Components Liquid Penetrant Examination Method |
SP-94-2008 Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Ultrasonic Examination Method |
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SP-95-2006 Swage(d) Nipples and Bull Plugs |
SP-96-2011 Guidelines on Terminology for Valves and Fittings |
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SP-97-2012 Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded, and Buttwelding Ends |
SP-98-2012 Protective Coatings for the Interior of Valves, Hydrants, and Fittings |
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SP-99-2010 Instrument Valves |
SP-100-2009 Qualification Requirements for Elastomer Diaphragms for Nuclear Service Diaphragm Type Valves |
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SP-101-1989 (R 2001) Part-Turn Valve Actuator Attachment - Flange and Driving Component Dimensions and Performance Characteristics |
SP-102-1989 (R 2001) Multi-Turn Valve Actuator Attachment - Flange and Driving Component Dimensions and Performance Characteristics |
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SP-104-2012 Wrought Copper Solder-Joint Pressure Fittings |
SP-105-2010 Instrument Valves for Code Applications |
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SP-106-2012 Cast Copper Alloy Flanges and Flanged Fittings.. Class 125, 150, and 300 |
SP-108-2012 Resilient-Seated Cast Iron Eccentric Plug Valves |
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SP-109-2012 Welded Fabricated Copper Solder Joint Pressure Fittings |
SP-110-2010 Ball Valves Threaded, Socket Welding, Solder Joint, Grooved and Flared Ends |
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SP-111-2012 Gray-Iron and Ductile-Iron Tapping Sleeves |
SP-112-2010 Quality Standard for Evaluation of Cast Surface Finishes -Visual and Tactile Method. This SP must be used with a 10-surface, three dimensional Cast Surface Comparator, which is a necessary part of the Standard. |
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SP-112-Comparator Quality Standard for Evaluation of Cast Surface Finishes -Visual and Tactile Method. This SP must be used with a 10-surface, three dimensional Cast Surface Comparator, which is a necessary part of the Standard. |
SP-113-2012 Connecting Joints between Tapping Machines and Tapping Valves |
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SP-114-2007 Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000 (ANSI-approved American National Standard) |
SP-115-2010 Excess Flow Valves, 1.1/4 NPS and Smaller, for Natural Gas Service |
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SP-116-2003 Service-Line Valves and Fittings for Drinking Water Systems |
SP-116-2011 Service-Line Valves and Fittings for Drinking Water Systems |
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SP-117-2011 Bellows Seals for Globe and Gate Valves |
SP-118-2007 Compact Steel Globe and Check Valves - Flanged, Flangeless, Threaded and Welding Ends (Chemical and Petroleum Refinery Service) |
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SP-119-2010 Factory-Made Wrought Belled End Pipe Fittings for Socket Welding |
SP-120-2011 Flexible Graphite Packing System for Rising Stem Valves - Design Requirements |
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SP-121-2006 Qualification Testing Methods for Stem Packing for Rising Stem Steel Valves |
SP-122-2012 Plastic Industrial Ball Valves |
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SP-123-1998 (R 2006) Non-Ferrous Threaded and Solder-Joint Unions for Use With Copper Water Tube |
SP-124-2012 Fabricated Tapping Sleeves |
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SP-125-2010 Gray Iron and Ductile Iron In-Line, Spring-Loaded, Center-Guided Check Valves |
SP-126-2007 Steel In-Line Spring-Assisted Center Guided Check Valves |
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SP-127-2001 Bracing for Piping Systems Seismic-Wind-Dynamic Design, Selection, Application |
SP-128-2012 Ductile Iron Gate Valves |
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SP-129-2003 (R 2007) Copper-Nickel Socket Welding Fittings and Unions |
SP-130-2003 Bellows Seals for Instrument Valves |
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SP-131-2010 Metallic Manually Operated Gas Distribution Valves |
SP-132-2010 Compression Packing Systems for Instrument Valves |
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SP-133-2010 Excess Flow Valves for Low Pressure Fuel Gas Appliances |
SP-134-2012 Valves for Cryogenic Service Including Requirements for Body/Bonnet Extensions |
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SP-135-2010 High Pressure Knife Gate Valves |
SP-136-2007 Ductile Iron Swing Check Valves |
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SP-137-2007 Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components |
SP-138-2009 Quality Standard Practice for Oxygen Cleaning of Valves and Fittings |
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SP-139-2010 Copper Alloy Gate, Globe, Angle, and Check Valves for Low Pressure/Low Temperature Plumbing Applications |
SP-140-2012 Quality Standard Practice for Preparation of Valves and Fittings for Silicone-Free Service |
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SP-141-2012 Multi-Turn and Check Valve Modifications |
SP-142-2012 Excess Flow Valves for Fuel Gas Service, NPS 1.1/2 through 12 |
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SP-143-2012 Live-Loaded Valve Stem Packing Systems |
Reference.. Manufacturers Standardization Society (MSS)