BYH103X piston remote control float valve is a multi-function hydraulic operated valve. Mainly installed in the pool or elevated water tower inlet, when the water level reaches the set height, the main valve is controlled by the float guide valve to close the water inlet to stop the water supply: when the water level drops, the main valve is controlled by the float guide valve to open the water inlet to fill the pool with water, to achieve automatic water replenishment. Accurate liquid level control, not disturbed by water pressure: the piston remote control float valve can be installed at any position with the height of the pool and the use space, maintenance, commissioning, inspection of all urine, reliable sealing, long service life. The piston valve has reliable performance, high strength and smooth action, and is suitable for pipelines above 600 caliber.