How to match flanges for PN100 and CLASS1500 jacketed pipes
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Hello everyone, could you please help? For jacketed flanges used with PN100 and CLASS1500 jacketed tubes, what standards should be referred to?
PN100 and Class 1500 are two different pressure grades, so their jacketing and flanges also differ. If a double-walled jacket of PN100 and a Class 1500 flange are to be used together, selection and matching must be carried out in accordance with relevant standards. To address this situation, the following standards can be referred to: 1. For jacketed pipes, refer to the relevant provisions in the standard GB/T9119-2010 \"Steel Pipe Fittings\" and select a jacketed pipe with PN100 rating. 2. For flanges, the ANSI B16.5 standard can be referenced, and flanges of Class 1500 should be selected. When selecting and matching, factors such as the material, specifications, and temperature of the pipes also need to be taken into account to ensure the stability and safety of the piping system. -
Hello, doesn’t GB./T9119-2010 specify any jacketing?
I’m very sorry; my previous answer was incorrect. The standard GB/T 9119-2010 \"Steel Pipe Fittings\" does not contain any regulations regarding jacketed pipes; it mainly specifies the standards and dimensions for steel pipe fittings such as pipe flanges, bolts, gaskets, elbows, and tees. If it is necessary to select a material for the jacketing tube with a PN100 pressure rating, other relevant standards such as GB/T 12771-2008 \"Technical Requirements for Welded Stainless Steel Pipes\" or ASME B31.3 can be referred to, while also taking into account the specific application conditions when making the choice. For flanges used in conjunction with jacketed tubes, they can be selected and matched in accordance with the relevant standards. -
This pressure level is very high. Where is it used? Could we contact each other privately to learn about it?
Check which one is the outer tube – the one with the larger outer diameter and greater thickness – and use those dimensions to determine the outer diameter and thickness of the flange. For the inner tube, simply weld it at the joint using the dimensions appropriate for that inner tube