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Aftermarket Replacement for
Part Number: 100512
Williams 100512 WM227F Air Brake Relay Valve
Unit of Measurement: Each
This item is NOT eligible for returns or cancellations
The WM227F is a regulating relay valve used in vehicular air brake systems. It rapidly delivers supply pressure to the brake chambers when it receives a pilot signal from the service brake control. When the service brake treadle is released, pressure at the chambers is exhausted to atmosphere. For optimum performance, the WM227F is usually mounted directly to its supply tank. WM227F relays can be used on trailers equipped with spring brakes as well as in tractor brake systems. For pre-121 trailers use a WM101 emergency relay valve.
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