Sun CKCBXAN Pilot-to-open Check Valve with Standard Pilot

This valve is a pilot to open check valve. It has a non-sealed pilot, a steel seat, and is non-vented. It allows free
flow from the valve (port 2) to the load (port 1) and blocks flow in the opposite direction. Pressure at the pilot (port
3) will open the valve from port 1 to port 2. Pilot pressure needed at port 3 to open the valve is directly proportional
to the load pressure at port 1. Pressure at port 2 directly opposes pilot pressure.