MSS - Amendments

* MSS SP-71-2011 Issued 2-22-2013
* MSS-SP-80-2008 Issued 12-3-2012
* MSS-SP-109-2012(and 1997 R2006) Issued 7-9-2012
* MSS-SP-72-2010 Replacement (2010a) Issued 4-18-2012
* MSS-SP-86-2009 Issued 7-6-2011
* MSS-SP-44-2006-2010 Issued 5-20-2011
* MSS-SP-79-2009 Issued 9-9-2010 (Amnd. 8-7-2012)
* MSS SP-110-2010 Issued 8-23-2010
* MSS SP-43-2008 Issued 2-25-2010

Errata sheets are issued after the revision release of the Standard Practice. Please download the Errata sheet if you have purchased any of the above Standard Practices prior to or on the above Errata issue date. The Errata sheets have been formatted to properly show their relevant page number within their respective SP.

SP-9-2013

SP-43-2013

SP-54-2013

SP-80-2013

SP-137-2013

SP-142-2012

SP-143-2012

SP-144-2013

MSS Historical Compendium of Standard Practices and Activities
[ 1924 - 2010 ]

Who is MSS?

The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association organized for development and improvement of industry, national and international codes and standards for Valves, Valve Actuators, Pipe Fittings, Valve Modification, Flanges, Pipe Hangers, and Associated Supports. MSS valve and fitting standards are in use around the world in a wide variety of facilities, including Nuclear Power Plants, and in virtually every industry, from Waste Water to Oil Refining. MSS currently includes 85 member companies that work in 24 technical committees to develop and maintain standards that shape the way flow is controlled. MSS is an American National Standards Institute (ANSI)-accredited standards developer.

Creating Standards for:

Valves	Pipe Fittings	Flanges
Valve Actuators	Pipe Hangers	Associated Seals
Valve Modification	Pipe Supports