Siemens 259-02021 VALVE ASSY NC 1/2" 1.6CV FXF SS TRIM ELECT ACT NSR FLOATSiemens 259 02021 Valve assy NC 1 2" 1. 6Cv FxF SS Trim Elect Act NSR float This Powermite 599 MT Series Normally Closed Valve Assembly features an electronic actuator with 24 volts AC operating voltage, floating and Fail In Place. The assembly is ANSI Leakage Class IV, has a stainless steel trim and a female to female connection. This assembly has a flow rate of 1. 6 Cv, and a line size of 1 2". Additional Information Valve TypeTwo way Port