What are the requirements for the auxiliary sealing rings of mechanical seals?
Thread Content
1) Resistance to corrosion by media at operating temperature; 2) Sufficient elasticity; 3) Certain strength. Flexible graphite has excellent properties in all aspects, but its use is limited due to poor strength; 4) considerable wear resistance; 5) easy to manufacture, reliable in operation, and inexpensive.
The auxiliary sealing ring of a mechanical seal must be able to withstand the operating temperature and resist corrosion by the medium; it should also possess good elasticity and sufficient strength. Although flexible graphite has good properties, its limited strength restricts its use. It also needs to have good wear resistance, a simple and reliable manufacturing and usage process, as well as low costs. .