Manufacturers Standardization Society
MSS is the only organization in the world dedicated exclusively to the technical needs of the valve and fittings industry. Standards and codes are written and revised by 25 technical committees and address topics such as valves, valve actuators, pipe fittings, flanges, and pipe hangers.
About 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:
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* Valves
* Valve Actuators
* Pipe Fittings
* Valve Modification
* Flanges
* Pipe Hangers
* Associated Seals
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 25 technical committees to write, revise and reaffirm industry standards.
In its leadership role, the Society also contributes to and monitors code and standard development activities worldwide. MSS, in cooperation with other standardizing bodies, appoints representatives to other standardization organization committees to share the views and objectives of the Society.
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).
At the international level, MSS representatives have served as leaders in U.S. delegations in many of the meetings of ISO working groups, subcommittees, and main committees addressing applicable areas of interest
MSS Logo Creation, The William Powell Company, a Charter Member company, created a cast for the metal logos that hang in the MSS Office. Mr. Bob Koester is the engineer who designed the logo.
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MSS TECHNICAL COMMITTEES
Valves
Flanges & Fittings
Actuators & Pipe Hangers
General
Cast Iron Valves
Non-Ferrous Industrial Valves
Iron Flanges & Flanged Fittings
Steel Flanges & Flanged Fittings
Pipe Hangers
Marking & Terminology
Underwriter Valves
Ball Valves
Forged Steel Fittings
Non-Ferrous Fittings & Flanges
Valve Actuators
Quality Standards
Water Works Valves & Fittings
Plastic Valves & Fittings
Ferrous Threaded Fittings
Wrought Welding Fittings
Valve Operation
Steel Valves
Diaphragm Valves
Packings & Gaskets
Butterfly Valves
Instrument Valves
Valve Modification
Fuel Gas Valves Ftgs & Pipe Comp
http://rapidshare.com/files/72125030/Mss_Collection.rar
PDF
MSS SP-55-2001 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Visual Method for Evaluation of Surface Irregularities
http://rapidshare.com/files/72116154/mss_sp-55_2001.pdf
first link contain:mss sp-51 2000 Class 150LW Corrosion Resistant Flanges and Cast Flanged Fittings
mss sp-53 1999 Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping Components-Magnetic Particle Exam Method
mss sp-58 1993 Pipe Hangers and Supports - Materials, Design and Manufacture
mss sp-61 1999 Pressure Testing of Steel Valves
mss sp-67 1995
mss sp-68 1997 High Pressure Butterfly Valves with Offset Design
mss sp-69 1996 Pipe Hangers and Supports - Selection and Application
mss sp-70 1998
mss sp-71 1997 Grey Iron Swing Check Valves, Flanged and Threaded Ends
mss sp-72 1999 Ball Valves with Flanged or Butt-Welding Ends for General Service
mss sp-73 1991 Brazing Joints for Copper Alloy Solder Pressure Fittings
mss sp-75 1998 Specification for High Test Wrought Butt Welding Fittings
mss sp-78 1998 Cast Iron Plug Valves Flanged and Threaded End
mss sp-79 1999 Socket-Welding Reducer Inserts
mss sp-80 1997 Bronze Gate, Globe, Angle and Check Valves
mss sp-81 2001Stainless Steel, Bonnetless, Flanged, Knife Gate Valve
mss sp-82 1992 Class 3000 Steel Pipe Unions, Socket-Welding and Threaded
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