Regarding the issue of pressure testing kits for water supply and drainage pipes
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Hello, Sea Friends! In my project, the outdoor water supply and drainage pipes have been installed; these are fire protection buried metal pipes made of 20# steel, with a diameter of DN300. The design pressure is 1.2 Mpa, while the test pressure is 1.8 Mpa. In accordance with GB50268, the proportion of non-destructive testing required is 10%. Is it necessary to prepare any documentation related to pressure testing before carrying out the testing? Is it sufficient to check the welding data records to ensure that the proportion of non-destructive testing meets the requirements and that all test results are satisfactory? Is it sufficient to create a test record for the water supply and drainage pressure pipelines after completing the pressure test? Is it necessary to prepare a set of pressure testing documentation according to the process pipelines?
It should be necessary; I work in the petrochemical industry, dealing with pipeline installation. For all water supply and drainage systems that require pressure testing, a pressure testing package must be prepared. In addition to the documents you mentioned, such as the record of confirmation of pressure testing conditions, non-destructive testing reports, and welding records, these are indeed essential; however, flowcharts, schematic diagrams, records of the installation and removal of temporary blind flanges during pressure testing, and a ledger of pressure gauges that have passed verification should also be included in this package. Only then can it be considered a complete pressure testing kit.
First, whether it is necessary to prepare a set of pressure testing kits according to the process pipelines depends on the attitude of the owner’s supervisor. There is no fixed format for pressure testing packages; it varies from industry to industry. But the core content should be more or less the same. Secondly, is it very laborious to create one set according to the process pipeline? Once it’s done, who would dare to find fault with you?
The test pressures have been specified; how can we not conduct the pressure test? I’m really impressed
I’m just asking; if it’s necessary, do it, and if not, don’t. Just keep a record of the experiment
It mainly depends on the implementation standards as well as the requirements set by the supervisor and the owner. Additionally, since this involves fire safety, if the fire safety inspection is passed, we must also adhere to the requirements stipulated by them. It is best to do it, so that the procedures and documents are in compliance.