LATEST RELEASE: March 2021 MSS PUBLISHES REVISED STANDARD FOR DIAPHRAGM VALVES MSS announces that SP-88-2021, Diaphragm Valves, has been revised and published … January 2021 MSS PUBLISHES REVISED STANDARD FOR PRESSURE TESTING OF KNIFE GATE VALVES MSS announces that SP-151-2021, Pressure Testing of Knife Gate Valves, has been revised and published …
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SP-45-2020
SP-88-2021
SP-93-2020
SP-94-2020
SP-98-2020
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Active American National Standard Projects (ANSI/MSS)
Updated: January 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) MSS is currently accepting participants to work on standard BSR/MSS SP-135-202x, High Pressure Knife Gate Valves (revision of ANSI/MSS SP-135-2016). Please contact standards@msshq.org to participate.
Updated: November 2020 Opened: October 2020 Project: 20-19-ANS Committee: C-304 Standard: SP-55-2011 Action: Revise QUALITY STANDARD FOR STEEL CASTINGS FOR VALVES, FLANGES, FITTINGS, AND OTHER PIPING COMPONENTS - VISUAL METHOD FOR EVALUATION OF SURFACE IRREGULARITIES (ANSI-APPROVED AMERICAN NATIONAL STANDARD) Staff submitted PINS form. PINS period is over on 12/13/2020.
Active MSS Standard Projects (New Standards)
Updated: November 2020 Opened: February 2010 Project: 10-05 Committee: C-403 Standard: New SP Action: New CABLE SUSPENSION OF PIPE – MATERIALS, SELECTION, APPLICATION, AND INSTALLATION Committee gathering documentation to help resolve negative comments from last ballot in January. Documentation to be discussed in December meeting (10/23/2020).
Updated: November 2020 Opened: April 2015 Project: 17-19 Committee: C-114 Standard: New SP Action: New SPECIAL HIGH-PRESSURE GAS TEST PROCEDURES FOR VALVES In committee ballot review (10/23/2020).
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