After the installation of pressure pipelines is completed, in addition to conducting a water pressure test to check for leaks, what other standards are required for inspection and acceptance?
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After the installation of pressure pipelines is completed, in addition to conducting a water pressure test to check for leaks, what other standards are required for inspection and acceptance? How can the installation quality of pressure pipelines be ensured?
For acceptance, refer to 20801 or 50184; these are used by the client or the supervisor. The contractor uses 50236 and 50236
It is recommended to follow what is stipulated in the contract; relevant standards to be adhered to should be indicated there, and inspection and acceptance should be carried out in accordance with those standards. This is for reference only.
The table on the 2nd floor explains it in detail: 50235, 50236, 50184； The pressure pipeline is now 20801.5-2020
In addition to what was mentioned on the 2nd floor, there is also a standard titled GB 50517-2010, which contains detailed classifications for pressure pipelines as well as procedures for their inspection and acceptance (the descriptions regarding pipeline classification in this standard seem more detailed than those in 50184)； It can corroborate with the pressure testing, leak testing, flaw detection, purging, degreasing, etc. mentioned in 50184 ； The general provisions of 50184 also mention the two standard specifications, 50252 and 50235, which are used in conjunction with each other ； For reference only ；
In accordance with the inspection regulations for pressure pipelines issued by the Special Inspection Agency
It shall be in accordance with the design drawings; the flaw detection, etc
After the pressing, the most important step is flaw detection.