KHIA headerKnow-How in Action

VOL XXVI, NO 128

Belzona® Seals Leaking Flange

 
 

Industry:

Petrochemical (PETR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Chemical plant, Germany

 
 

Application Date:

May 2010

 
 

Application Situation:

Large flange in hot brine process system

 
 

Problem:

Flanged joint was leaking at the gasket and through the bolts. Customer required an in-situ repair to seal the leak as joint could not be dismantled to effect a conventional repair.

 
 

Products:

Belzona® 1391 (Ceramic HT)

Belzona® 1111 (Super Metal)

 

Substrate:

Steel

 
 

Application Method:

Application was carried out using a modified version of Belzona Know-How System Leaflet VPF-11. The surface was prepared by grit blasting. The bolts were fully encapsulated using Belzona® 1111 to seal the leaks in these areas. Following this Belzona® 1391 incorporating Reinforcement tape was used to completely encapsulate the flange joint.

 
 

Belzona Facts:

The Belzona products were chosen to withstand the high process temperatures (120°C) and have proven to be totally effective leading to several aimilar repairs at the facility.

 
 

Photographs Description

  1. Leaking flange
  2. Belzona® 1111 applied to bolts
  3. First coat of Belzona® 1391 applied
  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: www.belzona.com