A page that can control water towers or pools, suitable for automatic water supply systems of various pools (tanks) and water towers in industrial and mining enterprises, civil buildings, etc. 
Features: 
The valve body adopts a full channel streamline design, with high flow rate, good sealing effect, simple maintenance, flexibility and durability, high liquid level control accuracy, water level not affected by water pressure interference, and tightly closed without water leakage. 
Principle: 
The upper chamber of the main valve is connected to the control float valve, which is fixed at the liquid level of the water tank. When the liquid level of the water tank drops, the float valve opens and the main valve opens to supply water to the water tank; When the liquid level rises to the position of the float valve, the float valve closes and the main valve also closes, stopping the supply of water to the water tank.