LATEST RELEASE: June 2017 MSS PUBLISHES TWO REVISED STANDARDS FOR INSTRUMENT VALVES AND ONE FOR THE SEALING OF RISING STEM VALVES MSS is pleased to announce the publication of revised SP-99-2016a, Instrument Valves (replaces 2016 edition), SP-105-2016a, Instrument Valves for Code Applications (replaces 2016 edition), and SP-120-2017, Flexible Graphite Packing Sealing for Rising Stem Valves ... May 2017 MSS PUBLISHES TWO REVISED STANDARDS FOR BUTTERFLY VALVES MSS is pleased to announce the publication of revised SP-67-2017, Butterfly Valves and SP-68-2017, High Pressure Butterfly Valves with Offset Design ...
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SP-6-2017
SP-60-2017
SP-67-2017
SP-68-2017
SP-81-2017
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Active American National Standard Projects (ANSI/MSS)
Updated: August 2017 Opened: October 2014 Project: 14-18-ANS Committee: C-409 Standard: SP-135-2010 Action: New HIGH PRESSURE KNIFE GATE VALVES (ANSI-APPROVED AMERICAN NATIONAL STANDARD)
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.
Active MSS Standard Projects (New Standards)
Updated: July 2017 Opened: May 2016 Project: 16-20 Committee: C-114 Standard: New SP Action: New SEVERE SERVICE VALVES Scope and Title Approved by CC Ballot (Oct 2016) and PN-16-20 assigned.
Updated: July 2017 Opened: April 2015 Project: unassigned Committee: C-114 Standard: New SP Action: New HIGH INTEGRITY TEST METHODS AND PROCEDURES The proposed scope and purpose is being revised for re-submission to CC for approval of scope/title and issuance of PN (6/2015). Waiting on direction from Chair or TF Chair.
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