# Centrifugal pump blades

Graphite/carbon-graphite vanes for pumps and rotating equipment. Also machined graphite impellers or rotors when the design calls for a one-piece rotating element.

Family: Mechanical applications

## Description
Replaceable graphite/carbon-graphite vanes are the most common wear part in vacuum pumps, blowers, and rotating equipment exposed to wear or corrosion. Some designs also use a fully machined graphite impeller or rotor (less common than individual vanes; steel rotors with vane slots remain typical).

## Processes
- Centrifugal pumping
- Positive displacement

## Challenges
- Accelerated wear of metal vanes
- Corrosion
- Fluid contamination

## Advantages
- Wear resistance
- Self-lubrication
- Dimensional stability

## 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-aspas-centrifugas)