BELZONA REBUILDS SPIRAL CASING OF A FRANCIS TURBINE

KHIA ID: 5471
Industry: Power (POWR)
Application: PDP-Positive Displacement Pumps (PDP)
Substrate: Steel
Customer Location: Hydropower Plant, France
Application Date: February 2001
Products:

Belzona 1311 (Ceramic R-Metal)

Belzona 1341 (Supermetalglide)

Belzona 5811 (Immersion Grade)

Problem: Corrosion, erosion and cavitation of the casing leading to vibrations and loss of efficiency.
Photograph Descriptions
  1. Pump casing
  2. After grit-blasting
  3. Casing rebuilt with Belzona 1311
  4. Completed repair with Belzona 1341 and Belzona 5811
Application Situation
Spiral casing of a Francis turbine.
Application Method
The casing was rebuilt with Belzona 1311 in accordance with Belzona Know-How System Leaflet PDP-6 and then protected with Belzona 1341 where the turbine fits. Then, Belzona 5811 was applied on the other parts.
Belzona Facts
The power group has recovered its full efficiency and long-term protection was provided to the casing.
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Translated KHIAs:

贝尔佐纳重建法式水轮机的蜗壳