WM639 - 3/8 Inch Shuttle Valve
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WM639 - 3/8 Inch Shuttle Valve

An in-line shuttle valve engineered for applications with a low to moderate air flow rate.

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WM639 - 3/8 Inch Shuttle Valve

The WM-639 is an in-line shuttle valve engineered for applications with a low to moderate air flow rate. It functions as a double-check valve, allowing two pressure sources to independently supply a single outlet. The WM-639 is equipped with a die-cast zinc shuttle which moves freely back and forth in a chamber connecting the valve’s two inlet ports. As long as there is a pressure differential between the inlets, the shuttle seals off the one with the least supply pressure. This valve is commonly used in air brake systems in which a hand valve and a treadle are both used to control the same function.

PDFs: wm-639_specification_sheet.pdf

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