1/4" NPT 3 Position 4 Port Closed Center Switching Valve (Equivalent to Part # HV400-1/4, Comparable to Part# 4HV230C-1/4)
Hand-Operated Pneumatic Switching Valve with 3-Position (Closed Center) Detented Rotary Lever: HV 400/420
The HV420 is a manual pneumatic directional valve with a four-way operation & four ports (P = Pressure 1, R = Pressure 2, A = Outlet 1, B = Outlet 2). Four-way, three-position valves can be used to switch two air inputs between two outputs, with a detented center position where all ports are closed.