The unique patented design of the Hudson Valve uses fluid pressure, as opposed to a lever arm and ball, as the force to close the valve. This compact, self-contained design greatly enhances the valve's reliability. The valve body is made of durable glass-filled nylon 6/6. Internal parts are of ABS plastic, silicone, and stainless steel. When properly installed, the valve will meet anti-siphon requirements.

Installation
1.Â See diagram A
2.Â Use plumber's tape on threads of water supply pipe. DO NOT USE PIPE COMPOUND.
3.Â Screw HUDSON VALVE on to water supply pipe, hand tighten.
4.Â Turn on water. NOTE: there will be a short delay in shut-off the first time the valve is used while the control chamber fills with water.

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Hudson Valve 1-2 inch - Water Level Control