Are the valve seat and sealing surface usually made of the same material?
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I would like to ask the experts: are the valve seat and the sealing surface usually made of the same material?
Not necessarily. The valve seat and sealing surface can be made of the same material or different materials, with the choice depending on the medium and operating conditions. .
There are those with a combination of soft and hard elements, those with direct hard-on-hard contact, metal ones, as well as those made of other materials
Under normal circumstances, they are not made of the same material; cases where they are the same material are very rare
Thank you all. It seems that the skills of Singaporeans are really poor; these two components should be filled in the same column{:9007:}
If the sealing surface and the valve seat are made of the same material, they will wear out quickly.