Flowrite 599 Series Valve Assembly features a 4 inch pneumatic actuator with 10 15 psi. The 2 way normally closed 1 2 V421 in line) IP20 Surface Rango de Presion:0 a 1" w.c. in line) IP20 Surface wall DIN rail mounting compatible with input voltages 208Vac 600Vac (220Vac 230Vac 240Vac 380Vac 400Vac 415Vac 440Vac 480Vac 500Vac 525Vac) item code #PSR30 600 11 DATA SHEET NPT 2 Way 8 GPM Stainless Steel Trim DCA Profile On Off(Fail Open) 100 250 Vac Nema 3R Enclosure The 2 way normally closed 1 2 inch 4 Cv valve assembly is ANSI Class 250 and has an equal percentage characteristic stainless steel trim and female x female end connections Flowrite 599 Series Valve Assembly features a 4 inch pneumatic actuator with 10 15 psi