Williams 117269 WM90DX2 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 (26mm) diameter hole, the WM90DX valves can be installed in material up to 0.25 inch (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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