Pressure regulating valve

Abstract

The invention provides a pressure regulating valve. At least three wiper blocks are arranged on the outer ring of the supporting end of a valve base, and the height of each wiper block is 0.005-0.015mm lower than the supporting plane of the inner ring valve base. The end face of each wiper block is higher than that of the outer ring valve base, a groove is formed between each two adjacent wiper blocks, and the end face of each wiper block is lower than that of the inner ring valve base. When a valve core tilts in a moving-down process, the end face of the valve core firstly makes contact with one wiper block on one side, and in a continuing flowing process, high-pressure liquid simultaneously flows out from the groove of the cocked end and the groove of the end where the valve core makes contact with one wiper block, so that pressure of the high-pressure liquid is scattered to the whole blocking end face of the valve core, the condition that the pressure of the high-pressure liquid is concentrated to the cocked side of the valve core, and therefore closing of the valve core is hindered is avoided, when the pressure regulating valve closes the valve core through a spring arranged in the pressure regulating valve, the valve core can achieve blocking of the valve base, and sealing is complete.

Description

technical field [0001] The invention relates to the technical field of pump valves, more specifically, to a pressure regulating valve. Background technique [0002] Pressure regulating valve, also known as self-operated balancing valve, flow control valve, flow controller, dynamic balancing valve, flow balancing valve, is an intuitive and simple flow regulating control device. The pressure regulating valve used in the pipeline network can directly set the flow rate according to the design. Under the action of water, the valve can automatically eliminate the remaining pressure head of the pipeline and the flow deviation caused by pressure fluctuations. No matter how the system pressure changes, the set flow rate will remain constant. These functions of the valve make the flow adjustment of the pipe network complete at one time, turn the network adjustment work into a simple flow distribution, and effectively solve the hydraulic imbalance of the pipe network. [0003] Such as...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides a pressure regulating valve to solve the problem of incomplete sealing between the valve core and the valve seat of the pressure regulating valve and ensure the product quality of the pressure regulating valve

Images