This for valve is the replacement of the traditional float ballcock, which can be applied to various systems of high water tanks, pools, water towers of the industry and civil construction, etc. Automatic control, low self-complementary water, water full automatic stop Four intakes, large volume of water Beautiful appearance, small size, practical, simple installation Without electricity, easy to use, long life, low failure rate, saving water resources Working pressure range: 1-10KG (0.1-1MPa) Applicable Medium: clean water Applicable Medium temperature: 70 Resistance to high temperature medium temperature: 70~120 When the pool or for tank water levels fall, the for valve body will sink down and then the forerunner of the control for valve will be opened. As the pipe water pressure affects, the seal face of control for valve will be opened. Finally the water comes out and vice versa. Note: This production belongs to the liquid level control valves. When installed, the float must be vertical. if you need to install from the top , a Elbow needed to connect the float for valve and the inlet line. Firstly, the feed line should be fixed in horizontal plane and then connect the automatic water level control for valve on the water inlet according to the standard. The main water inlet should be lined with the control valves' Normal Diameter. When using, the globe for valve should be all open. If two valves are installed in the same pool, the two valves should be held in the same horizontal plane. Before installing, please clean the impurities in the pipes in for case of blocking. If the water quality is not good, then the valves need to be maintained properly. If the users find the for time of adding water becomes longer, he can just upload the water inlet and make it washed Material: Nylon PA66+Food grade rubber Size: 72x50x70mm Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Water Level Control for Valve