Problems with the flange sealing surface of equipment designed for a pressure of 8.8 Mpa
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This post was last edited by huanglingjun90 on 2015-9-16 at 19:38. The design pressure is 8.8 Mpa; the device flanges of DN800 are lined. Can a male-female sealing surface be used?
Is the design pressure 8.8 MPa or 0.8 MPa? Of course, concave-convex surfaces can be used.
The sealing surface structure of equipment flanges comes in two types: those without gaskets and those with gaskets. Both types feature a male-female sealing design; however, the highest pressure rating is achieved by the long-neck flanges, with a PN6.4MPa rating. If your device operates at 0.8 MPa, types A, B, and long-neck types can all be used; whereas if it operates at 8.8 MPa, none of these three types are suitable. I think you can calculate it by referring to pipe flanges.
The sealing surface can use a male and female surface.......
The sealing surface of the equipment flange can be concave-convex. If it is to be disassembled frequently, it is recommended to use tenon-and-mortise joints. This can reduce damage to the gasket.
Wrongly written as: funk:. The design pressure is 8.8 Mpa.
Mm-hmm, the reference standard now is HG/t 20615 for flange design