Historical
MSS SP-80-2008
Bronze Gate, Globe, Angle and Check Valves
This MSS Standard Practice establishes requirements for bronze gate, globe, angle, and check valves in Classes 125 (PN 20), 150, 200, 300 (PN 50) and 350 for threaded and solder ends and Classes 150 (PN 20) and 300 (PN 50) for flanged ends. Pressures in this Standard Practice are gauge pressure in pounds per square inch (kPa). Hereafter the pressure will appear as psi (kPa).
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]