Regulations on the diameter of pressure pipelines

2018-04-14View Original

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Help: Nothing has been found so far. One of the latest requirements for pressure pipelines is a nominal diameter of 25 mm or more? Or is the nominal diameter greater than or equal to 50 mm?

Reply #22018-04-14

50 millimeters; see the catalog of special equipment at http://www.aqsiq.gov.cn/xxgk_13386/jgfl/tzsbaqjcj/201411/t20141103_426506.htm

Reply #32018-04-14

Hello: Could you be more specific? Nothing was found.

Reply #42018-04-14

It wasn’t found; it’s impossible. . . . . . .

Reply #52021-07-13

I want to know what DN size the pipes with outer diameters of 50, 51, and 54 correspond to Such an outer diameter size is indeed available on GB!

Reply #62021-07-24

Why use these non-standard pipes? ? ?

Reply #72021-07-27

Food-grade thin-walled stainless steel tubes are of this kind, as specified in standards such as ASME-A270-3a.

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Regulations on the diameter of pressure pipelines

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