Regarding the pressure release rate after pipeline pressure testing is completed
Thread Content
I would like to ask the experts: after completing the hydraulic testing of pressure pipelines, what should be the maximum allowable pressure release rate in MPa/min? Is there any specification that states this explicitly?
According to the international standard ISO 1167-1, after pipeline pressure testing is completed, the pressure release rate should be controlled at no more than 0.1 MPa/min. This speed is intended to ensure the safety and stability of the pressure release process. It should be noted that the actual pressure release rate may also be affected by the specific pipe materials and design requirements; therefore, it is recommended to refer to relevant **standards or industry guidelines for proper implementation. .