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Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings
Spot Facing for Bronze, Iron and Steel Flanges
Standard Marking Systems for Valves, Fittings, Flanges and Unions
Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 & 600)
Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications
Steel Pipeline Flanges
Bypass and Drain Connections
Class 150LW Corrosion Resistant Cast Flanges and Flanged Fittings
Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping Components - Magnetic Particle Exam Method
Quality Standard for Steel Castings for Valves, Flanges, and Fittings and Other Piping Components - Radiographic Examination Method
Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Visual Method for Evaluation of Surface Irregularities
Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation (incl. SP-69, 77, 89, and 90)
Connecting Flange Joint Between Tapping Sleeves and Tapping Valves
Pressure Testing of Valves
High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens Gaskets
Butterfly Valves
High Pressure Butterfly Valves with Offset Design
ANSI/MSS Edition Pipe Hangers andSupports - Selection and Application
Gray Iron Gate Valves, Flanged and Threaded Ends
Gray Iron Swing Check Valves, Flanged and Threaded Ends
Ball Valves with Flanged or Butt-Welding Ends for General Service
Specification for High Test Wrought Butt Welding Fittings
Guidelines for Pipe Support Contractual Relationships
Cast Iron Plug Valves, Flanged and Threaded Ends
Socket-Welding Reducer Inserts
Bronze Gate, Globe, Angle and Check Valves
Stainless Steel, Bonnetless, Flanged Knife Gate Valves
Class 3000 Steel Pipe Unions, Socket Welding and Threaded
Cast Iron Globe & Angle Valves, Flanged and Threaded Ends
Guidelines for Metric Data in Standards for Valves, Flanges, Fittings and Actuators
Factory-Made Butt-Welding Fittings for Class I Nuclear Piping Applications
Diaphragm Valves
Pipe Hangers and Supports -Fabrication and Installation Practices
Guidelines on Terminology for Pipe Hangers and Supports
Guidelines for Manual Operation of Valves
MSS Valve User Guide
Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components - Liquid Penetrant Exam Method
Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, and Fittings and Other Piping Components - Ultrasonic Exam Method
Swage(d) Nipples and Bull Plugs
Guidelines on Terminology for Valves and Fittings
Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded and Buttwelding Ends
Protective Coatings for the Interior of Valves, Hydrants, and Fittings
Instrument Valves
Qualification Requirements for Elastomer Diaphragms for Nuclear Service Diaphragm Type Valves
Part-Turn Valve Actuator Attachment - Flange and Driving Component Dimensions and Performance Characteristics
Multi-Turn Valve Actuator Attachment - Flange and Driving Component Dimensions and Performance Characteristics
Wrought Copper Solder Joint Pressure Fittings
Instrument Valves for Code Applications
Cast Copper Alloy Flanges and Flanged Fittings, Class 125, 150 and 300
Resilient-Seated Cast Iron-Eccentric Plug Valves
Welded Fabricated Copper Solder Joint Pressure Fittings
Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends
Gray-Iron and Ductile-Iron Tapping Sleeves
Quality Standard for Evaluation of Cast Surface Finishes -Visual and Tactile Method. (This SP must be sold with a 10-surface, three dimensional Cast Surface Comparator, which is a necessary part of the Standard. Standards or Comparators may be sold separately.)
Connecting Joint between Tapping Machines and Tapping Valves
Corrosion Resistant Pipe Fittings Threaded and Socket Welding, Class 150 and 1000
Excess Flow Valves for Natural Gas Service
Service Line Valves and Fittings for Drinking Water Systems
Bellows Seals for Globe and Gate Valves
Compact Steel Globe & Check Valves - Flanged, Flangeless, Threaded & Welding Ends (Chemical & Petroleum Refinery Service)
Factory-Made Wrought Belled End Socket-Welding Fittings
Flexible Graphite Packing System for Rising Stem Steel Valves (Design Requirements)
Qualification Testing Methods for Stem Packing for Rising Stem Steel Valves
Plastic Industrial Ball Valves
Non-Ferrous Threaded and Solder-Joint Unions for Use With Copper Water Tube
Fabricated Tapping Sleeves
Gray Iron and Ductile Iron In-Line, Spring-Loaded, Center-Guided Check Valves
Steel In-Line Spring-Assisted Center Guided Check Valves
Bracing for Piping Systems Seismic-Wind-Dynamic Design, Selection, Application
Ductile Iron Gate Valves
Copper-Nickel Socket-Welding Fittings and Unions
Bellows Seals for Instrument Valves
Metallic Manually Operated Gas Distribution Valves
Compression Packing Systems for Instrument Valves
Excess Flow Valves for Low Pressure Fuel Gas Appliances
Valves for Cryogenic Service Including Requirements for Body/Bonnet Extensions
High Pressure Steel Knife Gate Valves
Ductile Iron Swing Check Valves
Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components
Quality Standard Practice for Oxygen Cleaning of Valves & Fittings
Copper Alloy Gate, Globe, Angle, and Check Valves for Low Pressure/Low Temperature Plumbing Applications
Quality Standard Practice for Preparation of Valves and Fittings for Silicone-Free Service
Multi-Turn and Check Valve Modifications
Excess Flow Valves for Fuel Gas Service, NPS 1½ through 12
Live-Loaded Valve Stem Packing Systems


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About MSS

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. 

Valves & Fittings
Development and improvement of industry

 

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