Sprinklers general failure causes and troubleshooting methods: First, the pump can not absorb water: 1 , the inlet pipe is not sealed : it should be checked paragraph by paragraph, to eliminate the fault of the leak; 2. The speed of the sprinkler engine is too low to reach the required vacuum : Should adjust the throttle so that the speed is about 1700 rev / min; 3 , water absorption height is greater than the allowable water absorption height: water absorption vertical height should be less than 5 meters; 4. Serious plugging of water inlet pipeline : clear the pipeline and check the filter screen; 5 , pump oil seal damage, pump oil leakage affect the degree of vacuum : replace the seal; Second, the water tank can not put water: Sprinklers are too dirty, the filter is clogged, and ice builds up in winter. The water tank should be flushed, the filter cleaned, the debris removed, and the ice melted with hot water or hot air. A valve that automatically controls the level of a vessel. It is installed in the liquid inlet or outlet of the container, the use of float (usually empty floating ball) in the container float or drop drive valve disc action, by regulating the flow in and out of the container to maintain a certain level of the container. The valve in the figure is a floating ball regulator that controls the inlet flow of fluid. When the liquid level is below the specified value, the float drops to open the disc, and the liquid flows into the container, and the liquid level rises accordingly. When the liquid level rises to the specified level, the float floats to close the disc and the liquid stops flowing in. These valves are used for level control in low pressure vessels. Float Valve,Float Valve Hydraulic,Float Hydraulic Control Valve,Stainless Steel Float Valve SUZHOU YUEDA VALVE CO., LTD. , https://www.jsyuedavalve.com