Can stainless steel pipes withstand a pressure of 32 Mpa?
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I came across a passage that reads: For the pipeline installation in CNG hub stations and regular stations, the pipelines in such stations are laid in trenches. The low-pressure pipelines located before the CNG compressors are made of 20# seamless steel pipes along with corresponding fittings; the designed pressure for these pipelines is 2.5 MPa, and gate valves are primarily used as shut-off valves； The high-pressure pipeline downstream of the CNG compressor is constructed, in accordance with regulatory requirements, from 0Cr18Ni9 stainless steel seamless pipes along with corresponding ferrule-type fittings. The design pressure of the pipeline is 32 MPa, and ball valves are primarily used as isolation valves. After a rough calculation, a 3\" stainless steel pipe would require a wall thickness of around 16mm – is that acceptable? Why is the hydrostatic test pressure for stainless steel pipes specified at only 19 MPa in GB14976?
Are there any practical application examples?
Are there any practical application examples?
It can meet the requirements; just choose the model based on the pressure. We already have pipes operating at 50 Mpa on site!
The calculation in SW shows that a pressure of 35 Mpa can be achieved; the heat exchange tubes I designed, with dimensions of 12*2, can withstand a pressure of 30 Mpa!
It can be used; special customization is available, and the supply agreement can specify the test pressure..........
Pipelines can generally withstand relatively high pressures, depending mainly on whether there are any issues with the attachments attached to them.
This pressure falls within the high-pressure range, and pipes in accordance with the GB5310 standard should be considered. The pressure reduction requirement in the standards is probably due to the limitations of the water purification pressure press (personal opinion).