Siemens 257-02013B MT SERIES 2W VALVE ASSY, ANSI 250, NC, MOD EQ PCT, 3/4", FXUM, 6.3CV, 3-8PSI SRSiemens 257 02013B MT Series 2W Valve Assy, ANSI 250, NC, Mod Eq Pct, 3 4", FxUM, 6. 3Cv, 3 8psi SRThis Valve Assembly is a Powermite 599 MT Series, ANSI Class 250, 2 W, NC, Modified Eq Pct, 6. 3 Cv, FxUM, 3 4", , Bronze Body, Includes MT Series 2 In Pneumatic Actuator with 3 8 psi SR, Used for control of hot or chilled water for convectors This Valve Assembly is a Powermite 599 MT Series, ANSI Class 250, 2 W, NC, Modified Eq Pct, 6. 3 Cv, FxUM, 3 4",