Pilot Air Control Valve, Valve Ways and Positions 3-Way/2-Position, Valve Actuator / Return Air Pilot / Air Return, Valve Port Size 1/2 in, Max. CFM - Valves 4.4 cfm, Max. Operating PSI 140 psi, Pilot Pressure 25 psi, Pilot Port Size NPT (In.) 1/4, Max. Temp. Range (F) 0 to 125, Vacuum External Pilot, Coefficient of Volume 3.8, Cycles per Minute -, Length (In.) 3 1/16 in, Width (In.) 3 31/100 in, Height (In.) 4 25/32 in, Uses General Pneumatics Applications, Pilot Air Control Valve