Manual Air Control Valve, Valve Ways and Positions 4-Way/2-Position, Valve Port Size 1/2 in, Connection NPT, Valve Actuator / Return Rotary Lever / Manual, Max. CFM - Valves 85 cfm, Valve Max. Pressure Rating 140 psi, Valve Temp. Range 15 Degrees to 122 Degrees F, Coefficient of Volume 2.4, Overall Length 3 in, Overall Height 4 9/32 in, Overall Width 3 in, Manual Air Control Valve