Which standard specifies the flange with a pressure rating of 1.0 MPa and a diameter of DN700 for mechanical applications?
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Which standard specifies the flange with a pressure rating of 1.0 MPa and a diameter of DN700 for mechanical applications?
However, it is understood that GB national standard flanges, HG Ministry of Chemicals flanges, and ASME B16 standards are all used! Regarding the differences in application: it depends on many practical factors such as the specific equipment, pipelines, operating environment, and so on! ! The flange standard for mechanical components requested by LZ is JB/T 81-1994; the standard can be found at http://bbs.hcbbs.com/viewthread.php?tid=353143&extra=page%3D1&frombbs=1
I’ve seen the JB81 standard mentioned by the guy on the 2nd floor; flanges with a pressure rating of 1.0 MPa are only available in sizes up to DN600. I’m aware of flanges that meet the GB national standards, HG standards for the chemical industry, and ASME B16 standards – these are flanges with a pressure rating of 1.0 MPa and sizes larger than DN700. What I’m looking for now are flanges according to the mechanical industry standards, with beveled sealing surfaces
All standard WN butt-weld flanges come in 1.0*DN700 size; the poster should specify exactly what type of flange is meant
The poster, please check the following standards to see if there is anything you need Piping flanges: JB/T82-1994; Equipment flanges: JB4701-2000