Williams 111940 WM279E1 Self-Relieving Pressure Regulator

The WM279 series valves are self-relieving pressure regulators that are available with different regulating devices-thumb screws, hex screws or knobs. The operator regulated the output level by manually changing the position of the regulating device. Output pressure ranges vary from model to model, but all models maintain a constant output within the regulator's pressure range. The WM279 regulators are also equipped with an adjustment feature that lets the customer limit the maximum output to a preset value.

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