What is the difference between rubber gaskets and asbestos-rubber gaskets?
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What is the difference between rubber gaskets and asbestos-rubber gaskets? Is a rubber gasket or asbestos better for general acid-base applications? Is a rubber gasket or an asbestos rubber gasket better for air pipelines?
Asbestos gaskets are rarely used these days; acids require acid-resistant rubber gaskets, while for bases, there seems to be no requirement for acid resistance
I agree with the comment above; generally, asbestos gaskets are not needed. For compressed air and alkalis, metal wound gaskets should be used, while for acids, rubber gaskets or PTFE gaskets can be chosen depending on the situation
Rubber gaskets are resistant to acids and alkalis, allowing them to be used in acidic and alkaline environments, whereas asbestos gaskets do not possess this property. Nowadays, asbestos gaskets are rarely used; graphite and PTFE are generally employed in air ducts.
For general acids, acid-resistant rubber gaskets are used, while for air pipelines, asbestos rubber and metal gaskets are more suitable
There are those with asbestos combined with PTFE; they can also be used in high-temperature and strong-acid environments, and PTFE is the best option
Recently, asbestos gaskets have been found frequently in the company’s construction drawings for applications such as circulating water. Although it has been prohibited time and again, some cases still slip through.
In acidic and alkaline environments, PTFE gaskets are recommended; the regulations prohibit the use of asbestos gaskets, but in practice they are still widely used
Asbestos gaskets are no longer standard nowadays
It seems to be that asbestos pads are carcinogenic, so they have been banned
Asbestos rubber is definitely rubber to which asbestos has been added. But asbestos is carcinogenic; its use seems to have declined significantly, yet it has many advantages