Siemens 267-05940 VALVE ASSY 2W NO, 2-1/2" 63CV EQ PCT BRONZE TRIM FLANGED PROP EL-HYDRL ACT NSRSiemens 267 05940 Valve assy 2W NO, 2 1 2" 63Cv Eq Pct Bronze Trim Flanged Prop El Hydrl Act NSRFlowrite 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 an equal percentage characteristic, bronze trim, and flanged end connections. Flowrite 599 Series Valve