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Description -Valve Material : ABS Plastic -Pressure:Medium Pressure -Working Temp: -20 C to +80 C. -1/2 inches inlet Quantity: 1 pcs 1/2" management valves Notes and maintenance: 1. This production belongs to the liquid level leadership valves. When installed, the go with the flow needs to be vertical. Firstly, the feed line ought to be constant in horizontal aircraft after which join the automated water point management valve at the water inlet in maintaining with the standard. The leading water inlet needs to be covered with the leadership valves' Normal Diameter. When using, the globe valve should be all open. If two valves are installed within the identical pool, the two valves should be held within the identical horizontal plane. Before installing, please clean the impurities in the pipes in case of blocking. 2. If the water nice is not good, then the valves ought to be maintained properly. If the customers discover the time of adding water becomes longer, he can simply add the water inlet and make it washed. Its working principle: When the pool or tank water stages fall, the valve physique will sink down and then the forerunner of the control valve is probably opened. As the pipe water strain affects, the seal face of control valve is probably opened. Finally the water comes out and vice versa.