Hazardous Location Solenoid Air Control Valve, Valve Ways and Positions 4-Way/3-Position, Voltage 24V DC, Center Position Open, Valve Actuator / Return Solenoid Air Pilot / Solenoid Air Pilot, Pipe Size 1/4 in, Max. CFM - Valves 79 cfm, NEMA Classification NEMA 4, Valve Vacuum Range 0 to 28 in Hg, Body Style Body Ported, Pilot Port Size 1/8 in NPT, Pilot Pressure 14.5 to 100 psig, Coefficient of Volume 1.7, Hardwired Electrical Connections, Shifting Technology Spool & Sleeve