Solenoid Air Control Valve, Valve Ways and Positions 4-Way/2-Position, Voltage 120V AC, Center Position Not Applicable, Valve Actuator / Return Solenoid / Spring, ISO Class Not Applicable, Pipe Size 1/4 in, Max. CFM - Valves 1.4 cfm, Operational Pressure Range 20 to 145 psi, NEMA Classification NEMA 4, Valve Vacuum Range 0 to 28 in Hg, Normally Closed, Body Style Body-Ported, Inline, Pilot Port Size 1/4 in NPT, Pilot Pressure 30 psi, Coefficient of Volume 1.4