CPR Repairs Cavitated SIHI Vacuum Pump Impeller
CUSTOMER: Pump OEM in Ontario
APPLICATION DATE: January 2002
PROBLEM: SIHI rotor from vacuum pump operating in sugar mill had become badly pitted
SUBSTRATE: Steel
APPLICATION METHOD: After surface preparation CPR Material was used to fill deep pitting following by a two-coat system of CPR Material. Impeller was balanced and OEM tolerances restored.
CPR FACTS: CPR has proven repair procedures and materials for all types of liquid ring vacuum pumps including NASH, VOITH and Siemens
PHOTOGRAPHS
![](https://www.polymericcoatings.com/wp-content/uploads/2018/10/78125.png)
View of impeller as received
![](https://www.polymericcoatings.com/wp-content/uploads/2018/10/78126.png)
Impeller after blasting showing extent of damage.
![](https://www.polymericcoatings.com/wp-content/uploads/2018/10/78127.png)
Repairs completed with CPR Material
![](https://www.polymericcoatings.com/wp-content/uploads/2018/10/78128.png)
Impeller coated with CPR Material and ready for final tolerance checks/machining/balancing