What qualifications are required for the pressure testing of valves, and can the construction unit carry out this testing on its own?
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What qualifications are required for pressure testing valves, and can the construction unit carry out the testing on its own? How to produce a report?
This one. . . . Anyway, in the past, it was the construction companies themselves who handled the pressure testing on construction sites. But since I’m not from the pipeline and instrumentation field, I’m not entirely sure; it probably requires some kind of qualification. .
You can operate it by yourself; the valves you purchase come with certificates of conformity. Re-testing under pressure is done for safety and inspection purposes.
Pressure testing of valves requires a record of the testing; the testing unit generally needs to have certification issued by a local pressure vessel inspection agency
No qualifications are required for valve pressure testing. However, the suppression in many facilities is carried out on a system-by-system basis, that is, it includes many components of pressure vessels and pressure pipelines. So relevant qualifications are still required. Construction teams in general chemical plants possess the relevant construction qualifications.
1. The shell pressure test and sealing test of pressure pipeline valves prior to installation can be carried out by the construction party itself, and such tests must comply with the requirements specified in the construction and acceptance specifications indicated in the construction drawings. It is recommended to refer to the relevant provisions of GB50235-97 \"Code for Construction and Acceptance of Industrial Metal Piping Projects\" and SH3501 \"Code for Construction and Acceptance of Piping Projects for Toxic and Flammable Media in Petrochemical Industries\", which specify in detail the specific requirements for valve testing, the scope of testing, as well as the valve testing reports (records). 2. Since the installation of pressure pipelines requires corresponding installation qualifications, as long as the contractor has the qualifications for pipeline installation, separate valve testing qualifications are not necessary. 3. In accordance with the relevant provisions of TSG D2001-2006 \"Rules for Licensing the Manufacture of Pressure Pipeline Components\", manufacturers of valves to be installed on pressure pipelines must possess the appropriate licensing for the manufacture of such pressure pipeline components. For reference! This post was last edited by clguan on 2009-2-16 10:38.]
Regarding the issue of pressure testing valves, it is recommended that the original poster consult the standard GBT 13927-1992 \"General Valves – Pressure Testing\" to get clear answers.
Generally, pressure testing of ordinary valves does not require any special qualifications, but the calibration of safety valves to set the appropriate pressure must be carried out by a \"boiler and pressure vessel inspection unit\" authorized by the local quality and technical supervision bureau.