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ANSI/MSS SP-105-2023
Instrument Valves for Code Applications
This Standard Practice applies to small valves and manifold valves developed for and predominately used in instrument, control, and sampling piping systems for code applications. It covers steel and alloy valves of nominal pipe size (NPS) 2 and smaller, and pressure ratings of 15 000 psi (103.4 MPa) and lower at 100 °F (38 °C).
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]