What is the minimum length of a short section wrapped around a PTFE steel pipe?
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It’s a DN40 steel pipe lined with PTFE, equipped with flat welding flanges at both ends. The pipe layout diagram shows a section that is only 80 mm long; I’m not sure whether it’s possible to create such a short splice. If anyone knows the answer, please let me know. Thank you all
It’s so short – how can bolts be installed on the flanges on both sides?
1. Ensure that the welding of the two welds does not affect each other. 2. Ensure that they can be installed and removed properly
Are the lining tubes all types of corrosive media? Are flat-weld flanges suitable? I seem to remember that the relevant regulation is something like 20801. Flat-weld flanges are generally not used very often; if anyone downstairs knows about this, please help look it up as well. . . I can’t find it :L
Both of the 8cm bolts are too long; it’s indeed not easy to install them. .
If it’s too long, I can’t do it; but what if it’s too short? Can’t I do it then either? It’s possible to do it, right? Is it fine?
The production itself is no problem, but is it really necessary to have such a short section? Can the design be modified?
Sure, Option 1: clamped liner； 2 is also a flanged liner, but the bolts are long bolts that pass through it
Sure, Option 1: clamped liner； 2 is also a flanged liner, but the bolts are long bolts that pass through it
Perhaps due to design constraints, shorter pipes had to be used.