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News and Press Releases

LATEST RELEASE: June 2021

MSS PUBLISHES NEW VALVE STANDARD FOR SUPPLEMENTAL HIGH-PRESSURE GAS TEST PROCEDURES

MSS announces that New SP-158-2021, Supplemental High-Pressure Gas Test Procedures for Valves, has been published …

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June 2021

MSS PUBLISHES REVISED STANDARD FOR VALVE USERS

MSS announces that SP-92-2021, Valve User Guide, has been revised and published …

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Recent Publications

SP-45-2020       SP-51-2021       SP-53-2021       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-124-2020       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: April 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 committee ballot review - no further ANSI action needed at this time (11/25/2020).


Updated: April 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)

In ANSI committee ballot review due to negative vote (4/5/2021).


Active MSS Standard Projects (New Standards)

Updated: June 2021  Opened: June 2021

Project: 21-18  Committee: C-403  Standard: New SP Action: New

PRE-INSULATED PIPE HANGERS, PRE-INSULATED PIPE SUPPORTS, AND THERMAL SHIELDS – MATERIALS, DESIGN, TESTING, MANUFACTURE, SELECTION, APPLICATION, AND INSTALLATION

CC approved title/scope and PN assigned (6/4/2021).


Updated: April 2021  Opened: October 2018

Project: 20-02  Committee: C-408  Standard: New SP Action: New

DESIGN REQUIREMENTS FOR ACTUATOR-TO-VALVE MOUNTING COMPONENTS

Title/Scope approved and PN assigned. In committee development (3/16/2020).




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June 24, 2021

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