Siemens 299-03163 VALVE ASSY 2W NO, 1/2" 1.6CV EQ PCT BRASS TRIM FXF, 2-POS ELECTR ACT SRSiemens 299 03163 Valve assy 2W NO, 1 2" 1. 6Cv Eq Pct Brass Trim FxF, 2 pos Electr Act SR Flowrite 599 Series Valve Assembly features a 2 position control, spring return, 24 Vac electro mechanical actuator. The 2 way, normally open, 1 2 inch, 1. 6 Cv valve assembly is ANSI Class 250 and has an equal percentage characteristic, brass trim, and female x female end connections. Additional Information Valve TypeTwo way Valve Body StyleStroke Globe Port