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Flange Repair Keeps Pump Going



General Industry (GIND)



Valves, Pipes and Fittings (VPF)


Customer Location:

Houston, Texas, USA


Application Date:

November 2013


Application Situation:

Cracked flange on cooling water pump.



Customer could not pull the pump for the repair off the cracked flange and needed an in-place repair.



Belzona 1121 (Super XL-Metal)

Belzona 4151 (Magma-Quartz Resin)

Belzona 9371 (Reinforcement Tape)



Carbon Steel


Application Method:

The application was carried out in accordance to a modified version of Belzona Know-How System Leaflet VPF-11. A composite wrap using Belzona 1121 and Belzona 4151 with Belzona 9371 was used to encapsulate the flange.


Belzona Facts:

The pump is critical for production and the customer could not afford to shut it off to remove it for the repair. The Belzona application was done in place and within hours which allowed for production to be back on-line the same day and with little downtime.


Photographs Description

  1. Overview of the pump and flange before the repair
  2. Belzona 1121 used to build up the area and the composite wrap applied
  3. Completed project
Case study pic one


 Case study pic two


 Case study pic three




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