Manual Air Control Valve Valve Ways and Positions 4-Way/3-Position Valve Port Size 3/8 in Connection NPT Valve Actuator / Return Foot Treadle / Manual Max CFM - Valves 83 cfm Valve Max Pressure Rating 150 psi Valve Temp Range -10 Degrees to 180 Degrees F Center Position Closed Coefficient of Volume 2.3 Overall Length 13 in Overall Height 5 1/4 in Overall Width 4 in Series K Manual Air Control Valve