Siemens 599-02031 MT SERIES 2W VALVE 1/2", NO, 0.4CV, MOD EQ PCT, BRASS TRIM, FXUM, ANSI 250Siemens 599 02031 MT Series 2W Valve 1 2", NO, 0. 4Cv, Mod Eq Pct, Brass Trim, FxUM, ANSI 250This Valve is a Powermite 599 MT Series, ANSI Class 250, 2 W, NO, Modified Eq Pct, 0. 4 Cv, FUM, 1 2", Bronze Body, Brass Trim, Designed to work with pneumatic or electronic actuators, Direct coupled universal bonnet. No tools required for installation This Valve is a Powermite 599 MT Series, ANSI Class 250, 2 W, NO, Modified Eq Pct, 0. 4 Cv, FUM, 1 2", Brass