Needle Valve Directions Controlled 1 Valve Inlet Port 1/4 in NPT Valve Outlet Port 1/4 in NPT Valve Max Pressure Rating 600 psi Pressure Range 600 psi Max Temp 300 Degrees F Brass Adjustment Knob Brass Body Length 1 5/8 in Height 2 1/8 in Pneumatic Valves Product Group Flow Control Valve