Pressure pipeline water pressure testing issues
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When performing a hydraulic pressure test on a pressure pipeline, within what value range is the pressure drop considered qualified? I've been searching for a long time but haven't found any similar information. Please ask for help.
When it comes to voltage drop, the first thing to consider is time. The time factor is related to the temperature change, and there are also pressure changes caused by changes in the material of the pipeline equipment and the medium in the device under temperature conditions. The measurement accuracy of these factors depends on the measurement accuracy. It is estimated that it is difficult to obtain the actual value obtained. For reference.
GB 50184-2011 8.5.2.4 Stabilize the pressure for 30 minutes, the pressure will not drop, and there will be no leakage. The temperature difference can be used for pressure correction.