The Model P41 Float Valve is automatically operated by the water surface and installed in the water case. It is usually used for a pilot, and it can also be used directly. When the water surface in the water case decreases slowly, the float arm of the float valve will roll down with water surface with the float ball. At a certain position the float valve will opens and let the water flow into the water case. When the water surface increases slowly, the float arm of the float valve will rolls up with the float ball and closes the float valve at last and the water flow is stopped. If the float valve is used for a pilot, it should be installed far away from the outlet of the main pipe. The distance is 5 meters as least.

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