Williams 116697 WM90DX Fail Safe Pressure Modulating Valve

The WM90DX valves are push rod actuated, self-relieving pressure modulators. Several models are available with a variety of pressure ranges. All valves in the WM90DX series have a threaded stud at the neck for mounting and are equipped with a hex nut that requires a 1.5 inch wrench. Mounted in a 1.03 inch or 26mm diameter hole, the WM90DX valves can be installed in material up to 0.25 inch or 6 mm thick. The WM90DX valves differ from WM90 series in that these valves are designed with special safety features for use in FMVSS-124 systems. If an internal mechanical failure occurs in the WM90DX valve, the outlet pressure is immediately released to the atmosphere.

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