Siemens 255-01129 MZ SERIES 2W VALVE ASSY, ANSI 250,NO, LINEAR, 3/4 IN FXF, 6.3 CV, EL/MECHSiemens 255 01129 MZ Series 2W Valve Assy, ANSI 250,NO, Linear, 3 4 In FxF, 6. 3 Cv, El MechThis Valve Assembly is a Powermite 599 MZ Series, ANSI Class 250, 2 W, NO, Linear, 6. 3 Cv, FxF, 3 4 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, 2 W, NO, Linear, 6. 3 Cv, FxF, 3 4 In, 200