Siemens 258-02071 MT SERIES 3-WAY VALVE ASSEMBLY, ANSI 250, LINEAR, 1", FXF, 10 CV, 8-13PSI SRSiemens 258 02071 MT Series 3 Way Valve Assembly, ANSI 250, Linear, 1", FxF, 10 Cv, 8 13psi SRThis Valve Assembly is a Powermite 599 MT Series, ANSI Class 250, 3 W, Mix, Linear, 10 Cv, FxF, 1 In, Bronze Body, Includes MT Series 2 In Pneumatic Actuator with 8 13 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, 10 Cv, FxF, 1 In, Brass Body, Includes MT