# Pump mechanical seals

They guarantee efficient sealing in mechanical systems subjected to high pressures and temperatures.

Family: Mechanical applications

## Processes
- Dynamic sealing

## Challenges
- Leakage in dynamic seals
- Friction-face wear
- Incompatibility with liquid lubricants

## Advantages
- Seal-face self-lubrication
- Thermal stability
- Good chemical resistance in suitable grades

## 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/bombas-sellos-mecanicos)