Air Line Lockout Valve Air Inlet Size 1/4 in Air Inlet Type NPT Air Outlet Size 1/4 in Air Outlet Type NPT Maximum Operating Pressure 123 psi Maximum Operating Temperature 122 Degrees F Series Standard Modular Connectors Air Inlet Gender Male Air Outlet Gender Male Body Material Aluminum Coefficient of Volume Exhaust 0.2 Coefficient of Volume Forward 4 Exhaust Port Size 1/4 in Exhaust Port Type NPT For Use With Speedaire Intermediate Speedaire Standard