Customer Service:
Mon - Fri: 8:30 am - 6 pm EST

 Historical

ANSI/MSS SP-25-2013

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.

Content Provider
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [MSS]


ANSI Logo

As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

CUSTOMER SERVICE
NEW YORK OFFICE
ANSI HEADQUARTERS