LATEST RELEASE: May 2021
MSS AWARDS FIVE SCHOLARSHIPS TO ENGINEERING STUDENTS
MSS is pleased to announce the 2021 recipients of the MSS/Tom Hannafin Scholarship Awards...
MSS PUBLISHES REVISED STANDARD FOR CLASS 150LW CORROSION RESISTANT FLANGES AND CAST FLANGED FITTINGS
MSS announces that SP-51-2021, Class 150LW Corrosion Resistant Flanges and Cast Flanged Fittings, has been revised and published …
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: April 2021 Opened: April 2015
Project: 17-19 Committee: C-114 Standard: New SP Action: New
SPECIAL HIGH-PRESSURE GAS TEST PROCEDURES FOR VALVES
Finalizing for publication (4/7/2021).
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).