BELZONA® 2141 PROTECTS FRANCIS TURBINE RUNNERS FROM CAVITATION

KHIA ID: 901
Industry: Power (POWR)
Application: CEP-Centrifugal Pumps (CEP)
Substrate: Cast Iron
Customer Location: Hydroelectric plant (Ontario, Canada)
Application Date: August 1998 and July 2001
Products:

Belzona® 2141 (ACR-Fluid Elastomer)

Belzona® 2941 (Elastomer SP-Conditioner)

Problem: Cavitation had caused erosion of the parent metal and loss of performance of the turbine. Belzona® 1341 and Belzona® 1421 had been applied in 1998 but had suffered erosion in this aggressive environment.
Photograph Descriptions
  1. Cavitation damage 
  2. Belzona® 1341 (left) and Belzona® 1421 (right) after 36 months service 
  3. Belzona® 2141 after application 
  4. Belzona® 2141 after 34 months
Application Situation
Twin 914mm (36 inch) Francis Turbine Runners operating with 13m (42 feet) head and constructed in 1945.
Application Method
Application was carried out in accordance with Belzona Know-How System Leaflet CEP-3.
Belzona Facts
Inspection of the Belzona® 2141 in 2002 showed no damage – further inspection after 34 months showed no sign of damage to the coating.
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Translated KHIAs:

使用贝尔佐纳（Belzona®)2141防止法兰西式涡轮转子的气蚀