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MSS SP 25

Standard Marking System for Valves, Fittings, Flanges and Unions

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Organization: MSS
Publication Date: 1 January 1993
Status: inactive
Page Count: 28
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

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....
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...
MSS SP 25
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...

References

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