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English Translations » 【管道阀门技术圈】 » DN300 0.4MPa municipal medium-pressure gas pipeline with ope

DN300 0.4MPa municipal medium-pressure gas pipeline with openings for connecting DN200 branch pipes

2020-02-25View Original

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May I ask whether for municipal medium-pressure gas pipelines with a diameter of DN300 and an operating pressure not exceeding 0.4 MPa, it is possible to directly use DN300*DN200 butt-welded branch fittings to connect DN200 gas branches? During one emergency repair, there was a situation where a DN300 (buried) steel pipe needed to be connected to a DN200 steel pipe. There was no space at the site to use an elbow fitting, and since the location was in a very busy area, it was not possible to dig nearby; therefore, the branch pipe connection had to be made in a different way.

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Translated at 2026-07-21 04:14:10

Original: https://bbs.hcbbs.com/thread-2920225-1-1.html

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