How is the wall thickness of Series 2 fittings specified in GB12459? ? ? Urgent! Urgent! Urgent! Urgent! ! !
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How is the wall thickness of Series 2 fittings specified in GB12459? ? ? Urgent! Urgent! Urgent! Urgent! ! ! The standard specifies wall thickness grades only for Series 1 pipes, but does not define wall thicknesses for Series 2 fittings
For that Sch+ number associated with the pipe fitting model, you can simply refer to Series 1. The key is to ensure it matches the wall thickness of the pipe; otherwise, there will be a severe misalignment and welding will not be possible. Sometimes, when the wall thickness obtained from the wall thickness table differs too much from the actual wall thickness of the pipe, it’s not possible to use that value; instead, a technical approval form must be prepared, specifying the pipe fitting specifications in terms of outer diameter * wall thickness