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I would like to ask the experienced colleagues about the chamfering of the outer circle of flanges

2020-07-04View Original

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I would like to ask the experienced colleagues about the chamfering of the outer surface of flanges. I couldn’t find any specifications regarding this in the GB, HB, and JB standards. Could you let me know how it is determined – is it sufficient to simply round off the edges? Thank you
Reply #22020-07-04
It should be rounded at the corners; otherwise, it would be like a sharp blade and not suitable for use during installation or maintenance. For reference.
Reply #32020-07-06
Generally, it’s to remove sharp edges and round them off for safety reasons. The outer diameter of the flange is also generally 0.5~2 mm; 45 degrees is sufficient.
Reply #42020-07-09
The main criterion is that it should be blunted; for our processing, it’s 2MM at a 45-degree angle
Reply #52020-07-09
There is no specific specification regarding the size of the angle, but in design it is usually 0.5–1 mm at 45°; if it’s too large, it becomes unattractive
Reply #62020-07-10
More people are welcome to join the discussions on the pipes and valves section

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