Hydraulic shuttle valve 1/4"-BSG G parallel ports.
Ai says the following;
The valve has a simple structure: a body with two inlet ports (often labeled A and B) and one outlet port (often labeled C or A). Inside, a free-moving internal component, typically a hardened steel ball or a sliding spool, acts as the "shuttle"
- Pressure Application: When pressure is applied to one inlet (e.g., A), it pushes the internal shuttle towards the opposite inlet (B).
- Port Sealing: The shuttle seats against and seals off the lower-pressure or inactive inlet port, preventing backflow.
- Flow to Outlet: The pressurized fluid from the active inlet then has a clear path to flow through the middle opening to the single outlet port.
This process is automatic and instantaneous, responding quickly to changes in pressure between the two inlets without requiring external control.