- Endless, circular ring with square cross-section
- Double acting four lip seal
- Advantages
- Applications
- Function
- Optimized sealing effect (good pressure distribution over square cross-section)
- Low friction due to lower contact forces
- High stability in dynamic applications due to almost square cross-section
Most commonly used in the following applications:
- Dynamic sealing
- Handling and application of square and o-rings are comparable
- Sealing effect due to cross-sectional deformation after installation and axial or radial compression in the installation space
- In the operating state, media pressure reinforces the sealing function