Stud calculation for radial sealing o-ring
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The unit wants to conduct a pressure test on pipe fittings similar to steel pipes. Considering the quantity and specifications, it wants to install an O-ring near the pipe end at the outer diameter of the pipe. The specific structure is that the pipe is installed in the cap after welding the head and the SO-shaped flange. The inner wall of the head is processed with a sealing ring groove and one or two sealing rings are placed. The two flanges are connected and tightened with several studs. Because it is not a flange sealing surface seal, but a radial seal form on the inner wall. What is the approximate mechanical model for the specific stud calculation?
This is equivalent to the calculation of hydraulic static sealing. Taking into account the compression amount of the O-ring and the compression deformation and stretching amount of the stud, if the former is greater than the latter, there will be no leakage.
Thanks for the reply upstairs. Can you be more specific? Or recommend some reference materials! I'm stupid, so I'd be very grateful!
It is recommended to use Y-rings here instead of O-rings. If there is no suitable Y-ring that may involve mold opening, then replace it with 2 to O-rings. The first axial compression seal, the second bevel compression inward.