INJECTION OF BELZONA REPAIRS SHAFT
Industry: Power (POWR)
Application: MPT-Mechanical Power Transmission (MPT)
Substrate: Cast Iron
Customer Location: Hydropower Station, Spain
Application Date: February 2008
Products: Belzona® 1321 (Ceramic S Metal)
Problem: After more than 30 years working, the shaft had severe damage and loss of diameter causing water leaks
- Original shaft damage
- Heating the shaft with the former already installed
- Injecting Belzona between the shaft and the former
- Shaft rebuilt and protected at the same time
2.9 M diameter Butterfly Valve which controls the inlet water to the turbine.
Application was carried out in accordance with Belzona Know-How System Leaflet MPT-2.
Replacement of the shaft would have needed a large part of the installation to be disassembled. With Belzona the customer saved these high costs and has restored shaft with improved corrosion resistance. Use of former enabled shaft to be accurately reformed in-situ.