For SCH40 dn80 pipes and DN65 pipes, how should the elbow size be chosen?
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Sea friends, for SCH40 dn80 pipes and DN65 pipes, how should one choose the size of the fittings? The wall thicknesses of the 80 and 65 pipes are different. Are the wall thicknesses on both sides of the large and small ends the same? Should it be based on the uniform thickness specified for DN80? Is it still the case that the wall thicknesses on both sides of the large and small ends are inconsistent?
Why should the wall thickness be the same at both the large and small ends? Under the same temperature and pressure conditions, different pipe diameters result in inherently different wall thicknesses
Generally, the wall thickness on both sides of a reducer at the same pressure rating is not identical； In special cases, where the pressure levels on the two sides of the large and small ends are different, a uniform thickness should be chosen; this should be communicated to the manufacturer when placing the order.
DN80/DN65-SCH40:lol
Here’s a description of 20# GB/T8163 BW SH3408 SCH40(L)×SCH80(S); use it as a guide to make the necessary changes
Since the diameters at both ends are different, the wall thickness of SCH40 also varies; after all, the steel pipes at those two ends have different outer diameters and wall thicknesses as well. Just select the appropriate specifications according to the requirements