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Those pipes need to be pressure-tested

2019-07-22View Original

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Do those pipes need to be pressure-tested? For example, do air pipelines need to be pressure-tested, and what about vent pipelines?
Reply #22019-07-22
This post was last edited by bulusli on 2022-4-27 at 15:07. Those who need pipeline stress analysis can get in touch; it is a Class A design firm that can provide calculation reports. wei r1600843384
Reply #32019-07-22
Refer to GB/T20801.1~6 \"Code for pressure pipelines – Industrial pipelines\".
Reply #42019-07-22
The scope of this standard applies to pressure pipelines. It seems there are no regulations regarding pressure testing those pipes
Reply #52019-07-22
Any pressure pipeline must undergo a pressure test; it has to be done regardless of any regulations. As for vent pipes, it is impossible to perform pressure testing by installing a valve at the pipe outlet.
Reply #62019-07-23
Is that not about whether to use pressure pipes or not?
Reply #72019-07-23
For pipes that lead directly to the atmosphere, it is necessary to check the discharge pressure during use; if it exceeds the specified range, it is indeed essential to apply pressure to them. However, to determine this range, it is necessary to consider the pipe diameter, flow rate, and the pressure that may occur within the pipeline; it is best to refer to the specifications for pressure vessels when determining such a range. Pressure pipelines themselves should fall under the category of pressure vessels.
Reply #82019-07-23
Hello, can non-pressure pipes be exempted from pressure testing?
Reply #92019-07-23
No one asked for it; for such pipes, it also depends on what type of medium is carried through them, and there are relevant standards for that. It is usually stated within the contract text. These contract templates are also fill-in-the-blank forms.

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