Is it still necessary to conduct a strength test on the newly purchased valves before installing them on site?
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For newly purchased valves, is it still necessary to conduct a strength test before installation on site? Pipeline medium: Natural gas, heat transfer oil
I don’t think it’s necessary; just perform pressure testing with the pipeline.
Strength tests should be conducted. . . . . . . . .
As required by the standards, sampling inspections are conducted based on the valve size, material, and pressure rating. On-site pressure testing of valves is still very important. Some small teams don’t even know the procedures for such testing; especially for the sealing test on valves, it is necessary to loosen the sealing gland and fully open the valve stem, which is quite troublesome
We generally only use new valves after they have passed pressure testing
Each batch of valves must be sampled, and they can only be installed after pressure testing.
This is necessary; a pressure test must be carried out first before installation! ! ! ! ! ! ! ! ! ! ! !
It’s better to first understand the on-site construction acceptance standards; if there are specific requirements, then those need to be met.
Yes, I have been to LNG stations; the information there is kept confidential. All valves need to be tested, both during production and before they arrive at the site, especially those that are flammable or explosive.