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News and Press Releases

LATEST RELEASE: September 2021

MSS PUBLISHES REVISED STANDARD FOR COPPER-NICKEL FITTINGS

MSS announces that SP-129-2021, Copper-Nickel Fittings, has been revised and published …

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September 2021

MSS PUBLISHES REVISED “FINISH” STANDARD FOR CONTACT FACES OF PIPE FLANGES AND CONNECTING-END FLANGES OF VALVES AND FITTINGS

MSS announces that SP-6-2021, Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings, has been revised and published …

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Recent Publications

SP-6-2021       SP-45-2020       SP-51-2021       SP-53-2021       SP-60-2021      

SP-86-2021       SP-88-2021       SP-92-2021       SP-93-2020       SP-94-2020      

SP-98-2020       SP-100-2020       SP-108-2020       SP-111-2020       SP-112-2021      

SP-113-2021       SP-124-2020       SP-129-2021       SP-136-2020       SP-137-2020      

SP-144-2020       SP-151-2021       SP-157-2020       SP-158-2021      

Projects

Active American National Standard Projects (ANSI/MSS)

Updated: October 2021  Opened: October 2020

Project: 20-20-ANS  Committee: C-409  Standard: SP-135-2016 Action: Revise

HIGH PRESSURE KNIFE GATE VALVES (ANSI-APPROVED AMERICAN NATIONAL STANDARD)

ANS Recirculation ballot has been sent out. Ballot ends 11/19/2021. (10/20/2021).


Updated: September 2021  Opened: September 2020

Project: 20-04-ANS  Committee: C-304  Standard: SP-138-2014 Action: Revise

QUALITY STANDARD PRACTICE FOR OXYGEN CLEANING OF VALVES AND FITTINGS (ANSI-APPROVED AMERICAN NATIONAL STANDARD)

In MSS committee ballot review - no further ANSI action needed at this time (11/25/2020).


Active MSS Standard Projects (New Standards)

Updated: September 2021  Opened: February 2009

Project: 09-16  Committee: C-310  Standard: New SP Action: New

MODIFICATION OF QUARTER TURN VALVES

In committee ballot results review (8/12/2021).


Updated: September 2021  Opened: February 2010

Project: 10-05  Committee: C-403  Standard: New SP Action: New

CABLE SUSPENSION OF PIPE – MATERIALS, SELECTION, APPLICATION, AND INSTALLATION

Committee still gathering more information to resolve negative votes from last ballot (4/28/2021).




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December 4, 2021

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