KHIA headerKnow-How in Action


Belzona® Seals Leak In Butterfly Valve



Power (POWR)



Valves, Pipes and Fittings (VPF)


Customer Location:

Electric Energy Company, Brazil


Application Date:

August 2004


Application Situation:

Butterfly valve.



The valve presented excessive leaking, compromising the seal of the fluid and the interior of the pipe.



Belzona 1221 (Super E-Metal)

Belzona 1111 (Super Metal)



Mild Steel


Application Method:

First, the water flow was diverted to allow the application. The application was carried out in accordance with Belzona Know-How System Leaflet VPF-1. The surface was prepared with a grinder, emery cloth and wire brush. The valve was locked and Belzona 1221 was applied to stop the leak. After Belzona 1221 cured, Belzona 1111 was applied.


Belzona Facts:

Belzona allowed for the equipment to return to operation with little downtime and did not significantly affect the operations of the plant.


Photographs Description

  1. Cleaning the surface
  2. Application of Belzona 1221 to the leak area
  3. Application of Belzona 1111 in progress
  4. Completed application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


For more information about Belzona visit: