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Back pressure valve, PVC back pressure valve, stainless steel back pressure valve

Back pressure valve: used to prevent liquid from flowing or siphoning under the action of gravity. At this time, the back pressure valve can reduce the flow and pressure fluctuations caused by siphoning.

PVC back pressure valve, plastic back pressure valve

The main function of the back pressure valve is to stabilize the pipeline pressure, prevent siphonage, self-flow, and backflow, and improve the dosing accuracy of the metering pump. How to choose PVC back pressure valve on industrial pipelines?