What should be the set value for the back pressure of the metering pump’s back pressure valve, and what should be the set pressure for the safety valve?
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The outlet pressure of the metering pump is 6 kg, and that of the pipeline is 10 kg. What should be the set value for the backpressure valve of the metering pump and the set pressure for the safety valve?
The back pressure setting for the back pressure valve of a metering pump should be determined based on the specific requirements of the process flow; it can generally be calculated using the pressure difference. In this case, the outlet pressure of the metering pump is 6 kg, and the pipeline pressure is 10 kg; therefore, the backpressure setting for the backpressure valve of the metering pump can be around 4 kg. The set pressure of the safety valve should be slightly higher than the system’s maximum operating pressure, to ensure that pressure can be released in a timely manner in case of abnormalities in the system, thereby preventing safety incidents involving equipment or personnel. The specific setting pressure needs to be determined by referring to the equipment’s design specifications or consulting a professional engineer. .