The HSSCV cartridge type shuttle check valve allows for free flow to outlet port 2 from the highest (or only) pressure inlet port (1 or 3) while shutting off any flow from the remaining port.

When one of the inlet ports (1 or 3) is pressurized, the ball is forced against the seat of the opposite port, sealing that inlet and allowing flow to outlet port 2. If unequal pressures are present at both inlet ports, the ball will be forced against the seat of the port with lesser pressure, connecting the higher pressure to port 2.

This low leakage valve is constructed of high strength steel parts to assure superior seat life when used for high cyclical applications. The cartridge is designed for easy service or field repair.