Structural principle of throttle valve（3）

The throttle valve body is usually made of metal materials such as cast iron and steel. It is the main part of the device that undergoes internal shape changes and bears the pressure of liquid or gas inside the pipeline. The valve core is the core component inside the throttle valve, usually made of different materials such as copper, stainless steel, etc. The function of the valve core is to regulate the flow rate in the pipeline, and the change in its position can change the channel area of the throttle tube, thereby achieving the purpose of regulating the flow rate. Throttle valves are usually equipped with sensors for real-time monitoring of pressure and flow in pipelines. Sensors can provide feedback on the detected values to the control system, which can adjust the flow rate and pressure inside the pipeline by controlling the valve core.

The throttle valve controls the flow rate through the lifting and lowering of the valve core, and its working principle is to use the pressure difference of the fluid at the throttle port to control the flow rate. When liquid or gas passes through the throttling port, the frictional resistance between the pipe wall and the throttling port in the pipeline causes a pressure drop of the fluid at the throttling port. The valve core of the throttle valve changes the size of the throttle port by moving it up and down, thereby adjusting the pressure drop at the throttle port and controlling the flow rate.