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Manufacturers Standardization Society of the Valve and Fittings Industry |
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What 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 ▸IRON FLANGES & FLG FITTINGS ▸PIPE HANGERS ▸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 Oper. |
| Butterfly Valves | Instrument Valves | Pipe Hangers | Marking & Terms. |
| Fuel Gas Valves, Fittings and Pipe Components Valve Modification |
Valve Actuators | Quality Standards Packings and Gaskets |
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MSS Standards
SP-6 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings |
SP-9 Spot Facing for Bronze, Iron and Steel Flanges |
SP-25 Standard Marking Systems for Valves, Fittings, Flanges and Unions |
SP-42 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 and 600) |
SP-43 Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
SP-44 Steel Pipeline Flanges |
SP-45 Bypass and Drain Connections |
SP-51 Class 150LW Corrosion Resistant Cast Flanges and Flanged Fittings |
SP-53 Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping Components - Magnetic Particle Exam Method |
SP-54 Quality Standard for Steel Castings for Valves, Flanges, and Fittings and Other Piping Components - Radiographic Examination Method |
SP-55 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 Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation (ANSI-approved American National Standard) |
SP-60 Connecting Flange Joints Between Tapping Sleeves and Tapping Valves |
SP-61 Pressure Testing of Valves |
SP-65 High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens Gaskets |
SP-67 Butterfly Valves |
SP-68 High Pressure Butterfly Valves with Offset Design |
SP-69 Pipe Hangers and Supports - Selection and Application |
SP-70 Gray Iron Gate Valves, Flanged and Threaded Ends |
SP-71 Gray Iron Swing Check Valves, Flanged and Threaded Ends |
SP-72a Ball Valves with Flanged or Butt-Welding Ends for General Service |
SP-75 Specification for High-Test, Wrought, Butt-Welding Fittings |
SP-78 Gray Iron Plug Valves, Flanged and Threaded Ends |
SP-79 Socket Welding Reducer Inserts |
SP-80 Bronze Gate, Globe, Angle, and Check Valves |
SP-81a Stainless Steel, Bonnetless, Flanged Knife Gate Valves |
SP-83 Class 3000 Steel Pipe Unions Socket Welding and Threaded |
SP-85 Gray Iron Globe and Angle Valves Flanged and Threaded Ends |
SP-85 Gray Iron Globe and Angle Valves, Flanged and Threaded Ends |
SP-86 Guidelines for Metric Data in Standards for Valves, Flanges, Fittings, and Actuators |
SP-87 Factory-Made Butt-Welding Fittings for Class I Nuclear Piping Applications |
SP-88 Diaphragm Valves |
SP-91 Guidelines for Manual Operation of Valves |
SP-92 MSS Valve User Guide |
SP-93 Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings, and Other Piping Components Liquid Penetrant Examination Method |
SP-94 Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Ultrasonic Examination Method |
SP-95 Swage(d) Nipples and Bull Plugs |
SP-96 Guidelines on Terminology for Valves and Fittings |
SP-97 Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded, and Buttwelding Ends |
SP-98 Protective Coatings for the Interior of Valves, Hydrants, and Fittings |
SP-99 Instrument Valves |
SP-100 Qualification Requirements for Elastomer Diaphragms for Nuclear Service Diaphragm Type Valves |
SP-101 Part-Turn Valve Actuator Attachment - Flange and Driving Component Dimensions and Performance Characteristics |
SP-102 Multi-Turn Valve Actuator Attachment - Flange and Driving Component Dimensions and Performance Characteristics |
SP-104 Wrought Copper Solder-Joint Pressure Fittings |
SP-105 Instrument Valves for Code Applications |
SP-106 Cast Copper Alloy Flanges and Flanged Fittings.. Class 125, 150, and 300 |
SP-108 Resilient-Seated Cast Iron Eccentric Plug Valves |
SP-109 Welded Fabricated Copper Solder Joint Pressure Fittings |
SP-110 Ball Valves Threaded, Socket Welding, Solder Joint, Grooved and Flared Ends |
SP-111 Gray-Iron and Ductile-Iron Tapping Sleeves |
SP-112 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-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 Connecting Joints between Tapping Machines and Tapping Valves |
SP-114 Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000 (ANSI-approved American National Standard) |
SP-115 Excess Flow Valves, 1.1/4 NPS and Smaller, for Natural Gas Service |
SP-116 Service-Line Valves and Fittings for Drinking Water Systems |
SP-116 Service-Line Valves and Fittings for Drinking Water Systems |
SP-117 Bellows Seals for Globe and Gate Valves |
SP-118 Compact Steel Globe and Check Valves - Flanged, Flangeless, Threaded and Welding Ends (Chemical and Petroleum Refinery Service) |
SP-119 Factory-Made Wrought Belled End Pipe Fittings for Socket Welding |
SP-120 Flexible Graphite Packing System for Rising Stem Valves - Design Requirements |
SP-121 Qualification Testing Methods for Stem Packing for Rising Stem Steel Valves |
SP-122 Plastic Industrial Ball Valves |
SP-123 Non-Ferrous Threaded and Solder-Joint Unions for Use With Copper Water Tube |
SP-124 Fabricated Tapping Sleeves |
SP-125 Gray Iron and Ductile Iron In-Line, Spring-Loaded, Center-Guided Check Valves |
SP-126 Steel In-Line Spring-Assisted Center Guided Check Valves |
SP-127 Bracing for Piping Systems Seismic-Wind-Dynamic Design, Selection, Application |
SP-128 Ductile Iron Gate Valves |
SP-129 Copper-Nickel Socket Welding Fittings and Unions |
SP-130 Bellows Seals for Instrument Valves |
SP-131 Metallic Manually Operated Gas Distribution Valves |
SP-132 Compression Packing Systems for Instrument Valves |
SP-133 Excess Flow Valves for Low Pressure Fuel Gas Appliances |
SP-134 Valves for Cryogenic Service Including Requirements for Body/Bonnet Extensions |
SP-135 High Pressure Knife Gate Valves |
SP-136 Ductile Iron Swing Check Valves |
SP-137 Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components |
SP-138 Quality Standard Practice for Oxygen Cleaning of Valves and Fittings |
SP-139 Copper Alloy Gate, Globe, Angle, and Check Valves for Low Pressure/Low Temperature Plumbing Applications |
SP-140 Quality Standard Practice for Preparation of Valves and Fittings for Silicone-Free Service |
SP-141 Multi-Turn and Check Valve Modifications |
SP-142 Excess Flow Valves for Fuel Gas Service, NPS 1.1/2 through 12 |
SP-143 Live-Loaded Valve Stem Packing Systems |
Reference.. Manufacturers Standardization Society (MSS)
