Siemens 261-02073 VALVE ASSY 3W 1/2" 0.63CV SS TRIM ELECT ACT MOD 0-10 V NSRSiemens 261 02073 Valve assy 3W 1 2" 0. 63Cv SS Trim Elect Act Mod 0 10 V NSR This Powermite 599 MT Series Three Way Valve assembly features an electronic actuator with 24 volts AC operating voltage, modulating 0 10 volts and non spring return. The assembly is ANSI Class 250 and has a stainless steel trim. This assembly has a flow rate of 0. 63 Cv and a 1 2" line size. Additional Information Valve TypeThree way Port Configuration3 Way Mixing End