MSS SP 25
Standard Marking System for Valves, Fittings, Flanges, and Unions
inactive
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| Organization: | MSS |
| Publication Date: | 1 January 2008 |
| Status: | inactive |
| Page Count: | 27 |
scope:
This marking system applies to valves, fittings, flanges, and unions used in piping connections which include (but are not limited to) flanged, soldered, brazed, threaded, or welded joints.
These specified markings serve to identify the manufacturer, the rating designation, materials of construction and special service limitations imposed by the manufacturer. They are used for product identification and to assist in proper application.
Document History
January 1, 2018
Standard Marking System for Valves, Fittings, Flanges, and Unions
This standard marking system applies to the marking of new valves, fittings, flanges, and unions used in piping connections that include (but are not limited to) flanged, soldered, brazed, threaded,...
January 1, 2013
Standard Marking System for Valves, Fittings, Flanges, and Unions
This standard marking system applies to valves, fittings, flanges, and unions used in piping connections which include (but are not limited to) flanged, soldered, brazed, threaded, or welded joints....
MSS SP 25
January 1, 2008
Standard Marking System for Valves, Fittings, Flanges, and Unions
This marking system applies to valves, fittings, flanges, and unions used in piping connections which include (but are not limited to) flanged, soldered, brazed, threaded, or welded joints.
These...
January 1, 1998
Standard Marking System for Valves, Fittings, Flanges and Unions
This marking system applies to valves, fittings, flanges, and unions used in piping connections which include (but are not limited to) flanged, soldered, brazed, threaded, or welded joints. These...
January 1, 1993
Standard Marking System for Valves, Fittings, Flanges and Unions
This marking system applies to valves, fittings, flanges, and unions used in piping connections which include (but are not limited to) flanged, soldered, brazed, threaded, or welded joints. These...