Spring Check Valve For Faucet Cartridge

A spring check valve is a valve that ensures unidirectional flow and prevents reverse flow. They have a single inlet and outlet and must be placed in the proper orientation to function correctly. On the side of a Non-Return Valve, and all check valves is an arrow that points in the flow direction. Spring-loaded check valves are referred to as non-return or one-way valves. The purpose of a Non-Return Valve is to stop backflow using a spring and pressure placed on a disc to close the valve.