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The 700X water pump control valve consists of a main valve along with associated components such as ducts, pilot valves, needle valves, ball valves, and pressure gauges. It is a check valve type of valve that is installed at the outlet of water pumps in high-rise buildings and other water supply systems, to prevent backflow of the fluid. Working principle of the 700X water pump control valve: Before the water pump is about to stop supplying water, the valve first closes slowly by about 90%, thereby preventing water hammer or knocking sounds that can occur as a result of an abrupt stoppage of the pump ； Once the water pump has come to a complete stop, the valve is then closed fully to prevent the pumped water from flowing back, thus effectively protecting the pump from damage caused by reverse rotation due to backflow. This product is an essential protection device for the pump outlet. Installation Instructions for 700X Water Pump Control Valve The water pump control valve should be installed horizontally. When installed horizontally, the valve cover should face upward. A drainage facility should be provided downstream of the pressure reducing valve in the fire water supply system. When pressure reduction is required for a sprinkler system, the pressure reducing valve should be installed in front of the alarm valve (in the direction of water flow). For a pressure reducing valve that is used in conjunction with a single alarm valve, an auxiliary pressure reducing valve is not necessary ； For pressure reducing valves installed in conjunction with multiple alarm valves, pressure reducing valves manufactured by equipment manufacturers should be used. For pressure reducing valves used in hot water supply systems, hot water type pressure reducing valves should be employed. For hot water supply systems that use a main pipe circulation system (semi-circulation mode), the requirements for installing pressure reducing valves are the same as those for cold water systems ； In hot water supply systems that use a vertical pipe circulation method (full circulation), the installation of pressure regulators should prevent disruptions in the hot water circulation, and the pressures in the return pipes of each zone should be balanced at the junction points. Structural diagram of the 700X water pump control valve Application scope of the 700X water pump control valve The 700X water pump control valve is widely used in water supply pipeline systems in high-rise buildings, residential areas, and urban water supply projects.