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Solutions for mechanical seals
The seal within the seal – for mechanical seals to be able to seal rotating shafts under high pressures, they need a spectrum of so-called secondary seals precisely designed for the application so that they are able to develop their full effectiveness.
In contrast to a conventional radial shaft seal, mechanical seals can also reliably seal against the shaft under very high pressures. Providing that a suitable secondary seal has been integrated, because due to the operating principle of the mechanical seal, additional sealing elements are required - which play just as important a part as the main slip surfaces of this sealing system.
The seal ring sliding axially on the shaft need to be sealed against the shaft. This can be done with an O-ring, a pressure sleeve or roll bellows. The counter ring also has to be sealed against the housing. An O-ring generally does the job here.
Freudenberg Process Seals offers all necessary secondary seals in numerous different types of material, both as standard parts according to popular industrial standards and also in the shape of individually designed sealing elements.