and This 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 When the pool or tank water levels fall, the valve body will sink down and then the forerunner of the control valve will be opened. As the pipe water pressure affects, the seal face of control valve will be opened. Finally the water comes out and vice versa Specifications: Type: Upright Inner Installation Working pressure range: 1-10KG(0.1-1MPa) Applicable Medium: clean water Applicable Medium temperature: less than equal 70° Resistance to high temperature medium temperature: 70°~120° Outlet Diameter: G1/2 Size: 100.2x58x50mm Quantity: 4 Pc color: White material: plastic Package Contents: 4 x Water level control valve 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 valve and the inlet line. Firstly, the feed line should be fixed in horizontal plane and then connect the automatic water level control 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 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 case of blocking. Ifthe water quality is not good, then the valves need to be maintained properly. If the users find the time of adding water becomes longer, he can just upload the water inlet and make it washed Only the above package content