Manual Air Control Valve, Valve Ways and Positions 4-Way/2-Position, Valve Port Size 1/8 in, Connection NPT, Valve Actuator / Return Lever / Manual, Max. CFM - Valves 16 cfm, Valve Max. Pressure Rating 150 psi, Valve Temp. Range -10 Degrees to 180 Degrees F, Coefficient of Volume 0.4, Overall Length 3 15/32 in, Overall Height 3 13/16 in, Overall Width 1 1/2 in, Series 50, Manual Air Control Valve