Manual Air Control Valve Valve Ways and Positions 3-Way/2-Position Valve Port Size 1/4 in Connection NPT Valve Actuator / Return Lever / Spring Max CFM - Valves 0.83 cfm Valve Max Pressure Rating 150 psi Valve Temp Range 32 Degrees to 175 Degrees F Center Position Closed Coefficient of Volume 0.8 Body Material Aluminum Overall Length 4 in Overall Height 4 in Overall Width 1 1/2 in Series Directair 4 Manual Air Control Valve