# Machine seal rings

Graphite and carbon-graphite seal rings for precision rotary and static applications.

Family: Mechanical applications

## Processes
- Rotary sealing
- Static sealing
- Face-to-face contact

## Challenges
- Leaks from wear
- Ovalization and loss of flatness
- Process contamination

## Advantages
- Machinable flatness and finish
- Low dry friction
- Compatibility with wide thermal ranges

## Limitations
- Oxidation in air at high temperature without protection
- Lower mechanical strength than structural metals
- Requires grade selection by load and environment

- [Applications](https://esgraf.com/en/applications)
- [Alternate](https://esgraf.com/aplicaciones/equipos-anillos-sello)