The following methods could solve the common problems of cast iron pump impellers.
1. Impeller casting defects
Solutions: According to the actual situation, grinding, welding and other methods can be used. If the problem is serious, it needs to be scrapped and recast.
2. Impeller abrasion
Solutions: change the impeller material; change the design scheme; change the pump type; check the process medium.
3. Impeller cavitation
Solutions: lower the installation position; change the material that is more resistant to cavitation; redesign the pump type, etc.
4. The impeller mouth is locked
Solutions: increase the design gap; change the material of the mouth ring; check the process medium; replace the new mouth ring, etc.
5. Impeller fracture
Solutions: replace with a new impeller.
6. Impeller corrosion
Solutions: replace a new impeller with anti-corrosion and wear materials; coating the impeller anti-corrosion layer; spraying the impeller anti-corrosion layer.
 
Gray cast iron pump impeller |
