Siemens 255-01137 MZ SERIES 3W VALVE ASSY ANSI 250 WATER MIX LINEAR 1/2" FXF 4CV 200 NSiemens 255 01137 MZ Series 3W Valve assy ANSI 250 Water Mix Linear 1 2" FxF 4Cv 200 NThis Valve Assembly is a Powermite 599 MZ Series, ANSI Class 250, 3 W, WM, Linear, 4 Cv, FxF, 1 2 In, 200 N, Bronze Body, Includes SSB MZ Series Elect Mech Actuator, Used for control of hot or chilled water for convectors, fan coil units, reheat coils This Valve Assembly is a Powermite 599 MZ Series, ANSI Class 250, 3 W, WM, Linear, 4 Cv, FxF, 1 2 In, 200 N, Brass