Machine-marked flange
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In which industries are the machine flange standards specified in JB/T 74~86 2015 mainly applied? I took a look, and the outer diameters of the steel pipes specified for Series 1 and Series 2 don’t match those specified in GB/HG standards; it seems quite confusing, and it will likely be troublesome to use them, as there are times when metric pipes are used and other times when imperial pipes are used. I would appreciate some guidance from experts, thank you!
Used in the machinery industry; boilers, water pumps, and fans may all use it
Your company and the industry should establish clear standards for piping implementation; it shouldn’t be up to the designers to decide, as this will lead to chaos