Williams 106839 WM498J Three-Way Non-Override Valve

The WM498J and WM498S are components of the WM498 series manifold panel assemblies. The WM498J and WM498S are gang-mounted, three-way control valves that require actuation both manually and by supply pressure. The WM498S is designed to be mounted at one end of the manifold panel, while the WM498J is installed between two other components in the panel assembly. Functionally, the WM498J and the WM498S are identical. Each consists of a manually actuated, three-way valve stacked in series with a pressure-actuated two-way valve that provides a non-override safety feature.

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