Importance

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Abstract

A pilot fill valve includes a float that is separated into upper and lower cavities by an angled partition through which a drain outlet and an overflow outlet are disposed. When the level of the float drops, a portion of the water supplied to the fill valve is diverted to a tank to raise the float, while the remainder is diverted to the upper cavity increasing the weight of the float. As the float begins to rise, the water in the upper cavity drains through the drain outlet and overflow outlet, making the float lighter, and causing the float and pivot arm to rotate with increased velocity, allowing the pilot cap carried by the pivot arm to fully shut off the valve.

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First Claim