LATEST RELEASE: October 2018 MSS PUBLISHES REVISED STANDARD FOR PRESSURE FITTINGS MSS announces that technical standard SP-109-2018, Weld-Fabricated, Copper Solder-Joint Pressure Fittings has been revised and published ... October 2018 MSS PUBLISHES TWO REVISED STANDARDS FOR CHECK VALVES MSS announces that technical standards SP-71-2018, Gray Iron Swing Check Valves, Flanged and Threaded Ends and SP-125-2018, Check Valves: Gray Iron and Ductile Iron, In-Line, Spring-Loaded, Center-Guided have been revised and published ...
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SP-25-2018
SP-44-2016
SP-58-2018
SP-71-2018
SP-79-2018
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Active American National Standard Projects (ANSI/MSS)
Updated: August 2017 Opened: August 2017 Project: unassigned Committee: C-501 Standard: SP-142-2012 Action: New [PROPOSED NEW ANS] EXCESS FLOW VALVES FOR FUEL GAS SERVICE, NPS 1½ THROUGH 12 ANS PN yet to be assigned.
Updated: January 2016 Opened: March 2013 Project: 13-02-ANS Committee: C-108 Standard: SP-114-2007 Action: Revise CORROSION RESISTANT PIPE FITTINGS THREADED AND SOCKET WELDING CLASS 150 AND 1000 (ANSI-APPROVED AMERICAN NATIONAL STANDARD) Revised draft Approved and in Revised ANS Processing.
Active MSS Standard Projects (New Standards)
Updated: December 2018 Opened: May 2018 Project: 18-03 Committee: C-308 Standard: SP-149-2015 Action: Revise PREFORMED ELASTOMERIC AND POLYTETRAFLUOROETHYLENE (PTFE) V-RING PACKING SETS FOR WATERWORKS VALVES Publication Processing
Updated: November 2018 Opened: May 2016 Project: 16-20 Committee: C-410 Standard: New SP Action: New SEVERE SERVICE VALVES Scope and Title Approved by CC Ballot (Oct 2016) and PN-16-20 assigned. Assigned to new C-410 on 11/2018.
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