Hydro turbine guide vanes repaired and protected with BELZONA
Industry: Power (POWR)
Application: CEP-Centrifugal Pumps (CEP)
Substrate: Cast iron
Customer Location: Power plant, Ukraine
Application Date: January-February 2012
Products:
Belzona 1311 (Ceramic R-Metal)
Belzona 1321 (Ceramic S-Metal)
Problem: Erosion and cavitation of turbine vanes
Photograph Descriptions
- General view of the turbine guide vanes surface preparation
- Grit blasting of the turbine guide vanes
- Geometry of guide vanes repaired using Belzona 1311
- Repaired surfaces of the guide vanes after the application of Belzona 1311 and Belzona 1321
Application Situation
Erosion/corrosion and cavitation by pressure to the face of turbine guide vanes revealed during annual inspection
Application Method
The application was carried out according to Belzona Know-How System Leaflet CEP-1 and FBC-2. Belzona 1311 was used to resurface the profile. Belzona 1321 was applied to improve efficiency and protect against erosion/corrosion.
Belzona Facts
Replacement was considered unacceptable due to a short shut down. Belzona was the only alternative. All work has been conducted in a short time, and this has allowed to minimize time and money
