Solenoid Air Control Valve, Valve Ways and Positions 4-Way/3-Position, Voltage 24V DC, Center Position Open, Valve Actuator / Return Solenoid / Solenoid, ISO Class Not Applicable, Pipe Size 1/4 in, Max. CFM - Valves 69 cfm, Operational Pressure Range 0 to 150 psi, NEMA Classification NEMA 4, Valve Vacuum Range 0 to 28 in Hg, Body Style Base-Mounted, Pilot Port Size 1/4 in NPT, Pilot Pressure 20 psi, Coefficient of Volume 1.5, DC Plug-In w/Light Electrical Connections