Williams Controls WM-412-A 1/8 Shuttle Valve

The WM412A is a bracket-mounted shuttle valve with a 34 SCFM flow capacity. It functions as a double check valve, allowing two pressure sources to independently supply a single outlet. The WM412A is equipped with an elastomer shuttle which moves freely back and forth in an internal chamber connecting the valve's two inlet ports. As long as there is a pressure differential between the two inlets, the shuttle seals off the one with the lesser supply pressure. This allows air flow and backflow between the inlet with the greater supply pressure and the outlet, but prevents air from flowing between the valve's two inlet ports.

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