Sealing air connection
Ingress of fluids or dust at different temperature ranges can be prevented by a separate sealing air connection with a defined overpressure. The overpressure is achieved via a connection to a regulated compressed air system. It is installed together with an radial shaft sealing ring.
A sealing air connection is recommended for:
- critical installation locations with extreme dust exposure
- motors with permanent and direct fluid contact
Important
In the vertical installation position IM V3, liquid can accumulate permanently on the motor flange and penetrate into the motor. Even a sealing air connection cannot completely prevent the liquid from entering.
An air hose provided by the customer must be connected to a suitable regulated pressure reducer. The compressed air must be free of oil and dust.
Minimum requirements and technical data: | |
|---|---|
Compressed air requirement | According to DIN ISO 8573-1 Class 3:2010 [A:B:C] |
Operating pressure | 0.1 ± 0.05 bar |
Maximum pressure | 0.3 bar |
Air connection | Quick-release coupling |
Required air line | e.g. PA hose 6 mm x 4 mm |