Multifunctional water pump control valve

    Stainless steel structure multifunctional water pump control valve is a valve that integrates multiple functions, It is mainly used at the outlet of water pumps in municipal, construction, steel, metallurgy, petroleum, chemical, gas (natural gas), food, medicine, power plant, nuclear power and other fields to prevent medium backflow, water hammer and water hammer phenomena. The design of this valve aims to improve the safety and reliability of the water supply system, and can automatically perform corresponding operations when the water pump is started and turned off, without the need for additional manual operation or electrical control.

Constitute
    It usually consists of components such as valve body, valve cover, diaphragm seat, diaphragm, main valve plate, slow closing valve plate, liner, valve stem, main valve plate seat, slow closing valve plate seat, diaphragm pressure plate, and control pipe system. This type of valve can achieve hydraulic automatic control, with the characteristics of slow opening when starting the pump and fast closing first and then slow closing when stopping the pump. At the same time, it also has the functions of water hammer eliminator, gate valve,butterfly valve, and check valve at the outlet of the water pump. The stainless steel multifunctional water pump control valves can adapt to changes in operating parameters, prevent water hammer hazards, ensure water safety, and help reduce pipeline leakage rates

Working principle
     During the start-up and shutdown process of the water pump, the stainless steel multifunctional water pump control valve can work automatically. When the water pump is started, water pressure is transmitted from the bypass pipe to the lower chamber, and the main valve plate and slow closing valve plate slowly open under the action of water pressure at the inlet end and lower chamber. With the action of the inlet pressure, the valve plate rises to a larger opening state, and its opening height is determined by the flow rate. When the water pump stops working, the flow rate and pressure suddenly decrease, and the main valve plate begins to slide downwards under the action of gravity. When the flow rate approaches zero, the main valve plate closes and the discharge hole is retained to reduce the impact of water hammer. At this point, a pressure difference is formed between the upper and lower parts of the main valve plate, and the water pressure at the valve outlet enters the upper chamber through the bypass pipe to push the diaphragm pressure plate, causing the lower chamber water to be discharged into the valve inlet. The slow closing valve plate begins to slowly close until the discharge hole is completely closed, and the valve returns to the initial state of stopping the pump