BELZONA EXTENDS LIFE OF CHILLER

KHIA ID: 1103
Industry: Heating, Ventilation & Air Conditioning (HVAC)
Application: HEX-Heat Exchangers (HEX)
Substrate:
Customer Location: International Airport, Stockholm
Application Date: 2005, 2008
Products:

Belzona® 1311 (Ceramic R Metal)

Belzona® 1321 (Ceramic S Metal)

Problem: Corrosion on tubesheets (4) from one of the chillers was noticed in 2005. Cooling water comes from a local lake which together with galvanic effects was the cause of the corrosion.
Photograph Descriptions
  1. General view 
  2. Close up of erosion on tubesheet 
  3. Steam cleaning 
  4. Completed application
Application Situation
Three chiller units for air conditioning of terminal buildings.
Application Method
Application was carried out in accordance with Belzona System Leaflet HEX-1. Surface preparation included steam cleaning to remove salt contamination.
Belzona Facts
In 2008, the chillers were inspected and the two untreated ones were found to have severe erosion, whereas the Belzona protected one was still in excellent condition.
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