The V5X Series pneumatic valves come in 1/8, ¼, 3/8, and ½-in. NPT or ISOG port sizes. Valve functions include 3/2 & 5/2 solenoid/spring return, 3/2 & 5/2 solenoid/solenoid, 5/3 all ports blocked (APB), center open to pressure (COP), and center open to exhaust (COE). The V5X Series comes in 24 and 12 Vdc, and 110/120 Vac. In the V50, power consumption is 2.5 W, while the V51-V53 is 2.0 W. The Series also features push/turn locking manual overrides, single and double air-pilot valves, and DIN connectors.Norgren Inc., 5400 S. Delaware St., Littleton, CO 80120, (303) 794-2611, www.norgren.com/usa