Pressure testing and leak detection issues
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During the pressure testing and leak detection of the distillation tower system, the pressure dropped from 0.267 MPa to 0.257 MPa over 16 hours. Is this normal? Is it still necessary to locate the leak?
(0.267-0.257)/0.267×100% = 3.7%, which is less than 5%; the time should be 24 hours
During pressure testing, the higher the pressure in the system, the faster it drops. As long as the percentage decrease is less than 5% within 24 hours, is it not necessary to check for leaks in the system? Does it still depend on the pressure level of charging?
Has the correction for ambient temperature been done?···
When checking the pressure, it is generally at the same time in the morning, with little variation in temperature