What should be noted during pipeline pressure testing and airtightness testing?
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What should be noted and how should it be done during pipeline pressure testing and airtightness testing? What should be done with the filters and control valves in the pipeline? ? ?
Check Article 8.6 of GB50235; that way I won’t be accused of copying the standards, as it’s clearly stated there
The filter and control valve are subjected to gas-tightness testing online