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English Translations » 【管道阀门技术圈】 » Do pressure pipelines made of non-metallic materials require

Do pressure pipelines made of non-metallic materials require a weld assessment?

2019-09-02View Original

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For FRP/PVC and CPVC pipes used as pressure pipes, is it necessary to conduct weld procedure qualification? Are there any special welder certificates for this type of work?
Reply #22019-09-03
For the needs of gas pipelines, there are welding tests for non-metallic materials
Reply #32019-09-03
Are the pipelines for GC2 and GC3, such as hydrochloric acid, chlorine, and sodium hypochlorite, also not needed? Is a weld evaluation required?
Reply #42019-09-03
For the construction of non-metallic pipes, refer to the relevant provisions in GB 50690

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Translated at 2026-07-21 04:14:53

Original: https://bbs.hcbbs.com/thread-2774280-1-1.html

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