Shuttle valves control the flow of hydraulic fluid from two sources to a single output, providing a fail-safe mechanism for selecting the higher pressure source. They are crucial for maintaining system functionality and protection in applications where redundancy and reliability are critical, such as in braking systems and protection circuits.
Bosch Rexroth makes one style of shuttle valve, the VFC model. It is a single ball shuttle valve with 3 ports for in-line plumbing and has a flow rating of 50 lpm (13 gpm) and operating pressure up to 210 bar (3000 psi).