The mechanical seal base is connected to the equipment flange
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When the mechanical seal base is connected to the equipment flange, what type of gasket is usually used between the static ring seat and the equipment flange? Can polytetrafluoroethylene be used?
Perfluoroethylene is too hard; it depends on the medium in question. Fluororubber is used for most applications, while substances like nitric acid require solutions related to oxidation.
Polytetrafluoroethylene is acceptable; O-rings are commonly used
What about soft tetrafluoro wool? Is it mainly based on the material selected to use non-metallic gaskets here?
When selecting a sealing ring, the most important factor to consider is the nature of the medium! ! ! Oil-resistant, acid-resistant, alkali-resistant, high-temperature resistant, and swelling-resistant! ! !
Mainly from the perspective of the medium, O-rings are used in most cases.
We use a large amount of high-pressure, high-temperature resistant, oil-resistant asbestos sheets, as well as some polytetrafluoroethylene sheets, to make gaskets.