Siemens 283-03007 VALVE ASSY 2W NO, 1-1/2" 25CV LIN SS TRIM FXF, 8" PNEU ACT W/ POSSiemens 283 03007 Valve assy 2W NO, 1 1 2" 25Cv Lin SS Trim FxF, 8" Pneu Act w pos Flowrite 599 Series Valve Assembly features a 8 inch pneumatic actuator with factory mounted positioner and 5 psi span. The 2 way, normally open, 1 1 2 inch, 25 Cv valve assembly is ANSI Class 250 and has a linear characteristic, stainless steel trim, and female x female end connections. Additional Information Valve Body StyleStroke Globe Port Configuration2 Way