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Valve Manufacturing

MSS Publishes Six Revised and One New Standard

The Manufactures Standardization Society (MSS) has announced the following six revised standards and one new publication:

Updated/Revised Publications

  • MSS SP-42-2013, Corrosion-Resistant Gate, Globe, Angle, and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300, & 600)
  • MSS SP-61-2013, Pressure Testing of Valves
  • MSS SP-81-2013, Stainless-Steel or Stainless-Steel-Lined, Bonnetless, Knife Gate Valves with Flanged Ends
  • MSS SP-123-2013, Non-Ferrous Threaded and Solder-Joint Unions for Use with Copper Water Tube
  • MSS SP-126-2013, In-Line, Spring-Assisted, Center-Guided Check Valves (Carbon, Alloy Steel, Stainless Steel, & Nickel Alloys)
  • MSS SP-130-2013, Bellows Seals for Instrument Valves

Note: SP-81-2013 and SP-126-2013 includes a revised title.

New Publication

MSS SP-145-2013, Metal Ball Valves for Low Pressure/Low Temperature Plumbing Applications

Summary: This Standard Practice establishes requirements for ball valves with CWP ratings; including pressure-temperature ratings, materials, design, dimensions, marking, and testing.

All Standard Practices are available from MSS and through authorized distributors. A listing is available at:  

New Products


Valve Magazine Digital Edition

Valve Magazine Summer 2015Inside the Summer 2015 issue…

• Critical Service
• Effects of Flashing/Cavitation
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• The Latest in R&D