Siemens 256-02073A MT SERIES 3W VALVE ASSY, ANSI 250, LINEAR, 1/2", FXF, 0.63 CV, 10-15PSI SR, PNUSiemens 256 02073A MT Series 3W Valve Assy, ANSI 250, Linear, 1 2", FxF, 0. 63 Cv, 10 15psi SR, PnuThis Valve Assembly is a Powermite 599 MT Series, ANSI Class 250, 3 W, Mix, Linear, 0. 63 Cv, FxF, 1 2", Bronze Body, Includes MT Series 2 In Pneumatic Actuator with 10 15 psi SR, Used for control of hot or chilled water for convectors This Valve Assembly is a Powermite 599 MT Series, ANSI Class 250, 3 W, Mix, Linear, 0. 63 Cv, FxF, 1 2", Brass Body,