Siemens 290-06165 VALVE ASSY 3W MIX 2-1/2" 63CV EQ PCT/LIN SS TRIM FLANGED FLOAT EL-HYD ACT NSRSiemens 290 06165 Valve assy 3W Mix 2 1 2" 63Cv Eq Pct Lin SS Trim Flanged float El Hyd Act NSR Flowrite 599 Series Valve Assembly features a floating control, non spring return, 24 Vac electro mechanical actuator with 3 4 inch stroke. The 3 way, mixing, 2 1 2 inch, 63 Cv valve assembly with 3 4 inch stroke is ANSI Class 125 and has an equal percentage linear characteristic, stainless steel trim, and flanged end connections. Additional Information