gasket
gasket
(OP)
we are designing a custom flange with a sheet gasket and are thinking about widening the gasket surface. I know that we will need to increase the force on the gasket to provide the same pressure, since we are increasing the area.
and therefore it seems that the wider the gasket the more force and bolt torque required. it does not seem to be optimal to go to a wider gasket but are there any benifits of going to a wider gasket that i am missing?
and therefore it seems that the wider the gasket the more force and bolt torque required. it does not seem to be optimal to go to a wider gasket but are there any benifits of going to a wider gasket that i am missing?





RE: gasket
I would use the following rule of thumb for compressed non-asbestos sheet gasket width
ID < 24" = 3/4"
24"< ID < 36" = 1" Wide
36"< ID < 60" = 1-1/4" Wide
ID > 60" 1-1/2" Wide
I would also use a confined joint for a design pressure over 300 psi
RE: gasket
RE: gasket
There are also a wide range of compressed gaskets out there, you might be able to keep the design and switch to a different material with a better m and y value for your flange. An interesting gasket we used once for a leaking flange was Garlock 3760 multi-swell, the gasket swells in contact with water or oil.
RE: gasket
Thermoseal & Flexitallic both have equivalents of the 3760 multi-swell sheet.
-TJ Orlowski