The impact of pressure buildup in pipelines on valves
Thread Content
There is one thing that isn’t clear: if the back pressure applied to the safety valve or control valve connected to the main pipe is set too low, what adverse consequences could arise when the pressure in the main pipe is slightly higher (of course, not higher than the pressure before the valve)? ! Thank you
The current design concept is to implement a pressure difference interlock to prevent the valve from being opened under such conditions. It has a significant impact on the process, causes backflow, and easily leads to mixing of different materials. For example, nitrogen is used to purge the gas pipeline, causing the gas to enter the nitrogen pipeline.
If it is a spring-loaded safety valve, it will definitely affect the opening pressure; that is, when the opening pressure is reached, the safety valve does not operate.
Thank you to the two people above for their active participation. What I mentioned refers to the situation where the back pressure does not exceed the pressure before the valve. Let’s discuss the impact of high back pressure on the process in this situation. Thank you!