Brief introduction of safety relief pressure valve
Safety relief / pressure valve is generally installed upstream of the water supply network system, to achieve its downstream pipe network or device pressure reduction and voltage regulation function. Safety relief / pressure control valves are widely used in hydraulic control of high-rise buildings, living quarters or other water supply network systems.
Working principle of safety pressure relief valve
1. the safety relief pressure valve sets the outlet pressure by setting the pressure regulating valve, the spring pressure and the adjustment of the needle valve opening. The outlet pressure is stabilized by the feedback action of the receiver system and the control room. AX742X safety relief / holding pressure valve with a needle valve, pilot valve pressure self control, needs no additional devices and energy, maintenance is simple, affected by the inlet pressure and flow pressure control, high accuracy, reliable vacuum regulator.
2. when the pipe from the water inlet water, flow through the needle into the main valve control room, outlet pressure through the catheter to guide valve, when the outlet pressure is higher than the set value of the pilot valve, pilot valve closed, control room to stop the drainage, when the main valve control room pressure rise and close the main valve outlet pressure will not rise.
3. when the outlet pressure drops to the setting pressure of the pilot valve, the pilot valve is opened and the control room is drained downstream. As the drainage of the pilot valve is larger than the water intake of the needle valve, the pressure of the main valve control chamber drops, and the inlet pressure causes the main valve to be opened. In steady state, the inlet and drainage of control room are the same, the opening is constant, and the outlet pressure is constant. Adjust the guide valve spring to set the outlet pressure.
Features of safety relief valves
1 、 the pressure control is stable and reliable. Pilot valve and main valve work continuously, the downstream pressure changes continuously and smoothly, and is affected by the inlet pressure.
2, easy to operate. After the work pressure setting, when the upstream pressure or flow changes, the main valve automatically adjusts to stabilize the downstream pressure.
3 、 the valve body adopts full passage, direct current and streamline design. The utility model has the advantages of small hydraulic loss and good energy saving effect.
Zhejiang Hui Sheng Valve Co. Ltd is a professional production and sales of hydraulic control valves, multifunctional pump control valve, pressure reducing valve, control valve, micro slow close check valve, flow control valve, intelligent automatic control valve, flow and pressure regulating valve, automatic valve, silent check valve, mud valve, exhaust valve soft sealing gate valve, filter, filter, piston type check valve, balance valve and other products, widely used in waterworks, power plants, metallurgy, petrochemical, construction, energy, medicine and other water distribution piping system. Companies always adhere to the "quality first, customer first, excellence, and strive to open up" quality policy, and dedication to provide you with * * * quality services! The general manager of the company and all the staff sincerely welcome friends to come to visit, discuss business, good faith cooperation, mutual benefit and create a better future!
Address: Zhejiang Wenzhou Dong'ou Street Anfeng Industrial Zone Chinese universal valve group
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Order note
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