Lip seals
Lip seal geometry was developed over thirty years ago by the former company Heraeus-Leybold. Since then, its main application is as door seals for vacuum chambers.
The special lip seal geometry produces what is known as a contact aid which can also compensate for slight geometrical unevenness. When the chamber is evacuated, the ambient atmospheric pressure acts on the chamber door at a pressure of one kg per 1cm². The chamber door presses on the lip seal, thus sealing the chamber.
At Karl Druschke Dichtungsfertigung e.K. lip seals are joint-vulcanised from endless material so that they can be safely used in vacuum processes.
Geometrie and Material
| Dimension | Material* |
| 5x7,5 mm | FPM60, FPM70 |
| 10x15 mm | FPM60, FPM70 |
| 11x17 mm | FPM60, FPM70 |
| Dimension | Material* |
| 5x7,5 mm | NBR60 |
| 10x15 mm | NBR60 |
| 11x17 mm | NBR60 |
| 20x30 mm | NBR60 |
| 25x37mm | NBR60 |
| Dimension | Material* |
| 5x7,5 mm | MVQ60 |
| 10x15 mm | MVQ60 |
| 10x18,5 mm | MVQ60 |
| 11x17 mm | MVQ60 |
* VITON (FPM), Perbunan (NBR), Silikon (MVQ)* glued
