Siemens 267-06140 VALVE ASSY 2W NO, 2-1/2" 63CV LIN SS TRIM FLANGED PROP EL-HYDRAUL ACT NSRSiemens 267 06140 Valve assy 2W NO, 2 1 2" 63Cv Lin SS Trim Flanged Prop El Hydraul Act NSR Flowrite 599 Series Valve Assembly features a proportional control (0 to 10 Vdc or 4 to 20 mA), non spring return, 24 Vac electro hydraulic actuator. The 2 way, normally open, 2 1 2 inch, 63 Cv valve assembly with 3 4 inch stroke is ANSI Class 250 and has a linear characteristic, stainless steel trim, and flanged end connections. Additional Information Valve