Is there any specification stating which pipe diameters require threaded connections for pipes or valves, and which diameters require flange or clamp connections?

2017-06-22View Original

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Is there any specification stating which pipe diameters require threaded connections for pipes or valves, and which diameters require flange or clamp connections?

Reply #22017-06-22

This is related to the medium inside the pipeline; generally, for liquids, nitrogen, air, etc., pipes with a diameter of DN15 or less use threaded connections

Reply #32017-06-22

Chemical Process Design Manual, Page P144, 1.15 (3) Go and check it yourself; the manual should be available for download from HaiChuan

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