KHIA headerKnow-How in Action

VOL XX, NO 31

Belzona® Protects Flanges Of Concrete Lined Pipework

 
 

Industry:

Power (POWR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Power Station, Germany

 
 

Application Date:

August 2002

 
 

Application Situation:

Installation of additional valves into concrete lined cooling water pipework (ranging from 400-1200mm)

 
 

Problem:

The cutting of the pipes damaged the concrete lining and would have resulted in crevice corrosion on the flange face and corrosion creep under the concrete. It was not practical to repair the concrete with more concrete.

 
 

Products:

Belzona® 1111 (Super Metal)

Belzona® 9411 (Release Agent)

 

Substrate:

Concrete and Carbon Steel

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets VPF-3, -13.

 
 

Belzona Facts:

Fourteen Flanges were protected and all works completed within two days. The cooling water system operates with a maximum pressure of three bar. After inspection following three years service, the satisfied client has specified the use of Belzona 1111 for other damaged concrete lined pipes

 
 

Photographs Description

  1. Blasted steel flange face – note concrete lining also prepared 
  2. Use of formers as per VPF-13.
  3.  Completed application 
  4. Inspection after 3 years service
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com