Siemens 270-03146 3W ASSY, MIXING, 1/2", 2.5 CV, EQ PCT/LIN, SS TRIM, FXF; 4" PNU ACT, 10-15PSISiemens 270 03146 3W Assy, Mixing, 1 2", 2. 5 Cv, Eq Pct Lin, SS Trim, FxF; 4" Pnu Act, 10 15psi Flowrite 599 Series Valve Assembly features a 4 inch pneumatic actuator with 10 15 psi. The 3 way, mixing, 1 2 inch, 2. 5 Cv valve assembly is ANSI Class 250 and has an equal percentage linear characteristic, stainless steel trim, and female x female end connections. Additional Information Valve Body StyleStroke Globe Port Configuration3 Way Mixing End