Can pipeline hydrotesting and small container hydrotesting be carried out simultaneously?
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bg9.png Dear experts, can the pipelines and small containers be connected in series to conduct a hydrostatic test simultaneously? The design pressure for the double-phase steel pipeline is 0.53 MPa, and the test pressure is 0.89 MPa ； Stainless steel small container ①: design pressure 1.65 MPa, test pressure 2.1 MPa ； The stainless steel small container ② has a design pressure of 1.5 MPA and a test pressure of 1.9 MPA. Are there any requirements regarding the pressure difference? Help! ! ! !
Upon completion of the project, there are regulations regarding whether pipes and containers can be connected together for pressure testing; refer to 50235 and 50236, or the relevant provisions in 20801 – connection for pressure testing is allowed only if the conditions are met
No. A hydrostatic test is different from a leak test. The pressure difference is so large – 0.89 MPa and 2.1 MPa; what a huge difference in pressure!