Pilot Air Control Valve, Valve Ways and Positions 4-Way/2-Position, Valve Actuator / Return Pilot / Pilot, Valve Port Size 1/8 in NPT, Max. CFM - Valves 230 cfm, Max. Operating PSI 150 psi, Pilot Pressure 14.5 psi, Pilot Port Size NPT (In.) 1/8, Max. Temp. Range (F) 150, Vacuum Yes, Coefficient of Volume 5.5, Cycles per Minute -, Length (In.) 8 1/16 in, Width (In.) 2 7/16 in, Height (In.) 2 3/16 in, Uses For Air or Inert Gas, Pilot Air Control Valve