Regarding the pressure testing of pressure guide pipes
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We are conducting pressure testing on all pressure guide pipes. Could someone tell me what the general requirements for such testing are – what pressure is needed? It is a pressure guide tube. Thank you!
Pressure testing is carried out together with the process pipelines, under the same standards
The pressure testing of instruments and pipelines is carried out together with the pressure testing of process equipment!
Thank you to the two people above, but many of the joints in our pressure guide pipes are welded, so it is necessary to subject the pressure guide pipes to pressure testing separately. Is it also designed with a hydraulic pressure 1.5 times and an air pressure 1.15 times the rated pressure? Thank you
Generally, water is used for pressurizing pressure guiding pipes; those with many welds need to be pressurized separately, at 1.5 times the design pressure of the pipe. The standards specify the use of pneumatic testing, but I have never seen it done in practice. During construction, pressure tests are always held for 10 minutes once stability is achieved, but this is not done in accordance with the specifications.
When conducting a pressure test with water, it is generally 1.5 times the design pressure； When using gas for pressure testing, the pressure is generally set at 1.15–1.2 times the design pressure; if the design specifies a particular test pressure, that value should be used for the testing.