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VOL XI, NO 44

Belzona® Restores Valves To Better Than New Condition

 
 

Industry:

Pulp & Paper (PLPR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Paper Mill in Northwest Florida, U.S.A.

 
 

Application Date:

1992

 
 

Application Situation:

Swing pin housings of non-return check valves.

 
 

Problem:

Housing had eroded/corroded to the point where the valve flap would not seat (seal) properly, allowing partial flow in the wrong direction

 
 

Products:

Belzona® 1111 (Super Metal)

Belzona® 9411 (Release Agent)

 

Substrate:

Cast iron

 
 

Application Method:

The application was carried out in accordance with Belzona Know-How Leaflet VPF-7.

 
 

Belzona Facts:

The customer averted costly replacement or welding and line boring. Several valves were repaired. New flappers were installed and the inside of the valve bodies were rebuilt with Belzona® 1111 (Super Metal).

 
 

Photographs Description

  1. Corroded housing.  
  2. Molding technique using fabricated dummy pin, Belzona® 1111 (Super Metal) and Belzona® 9411 (Release Agent) are employed.  
  3. Finished repair.
 
 
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For more information about Belzona visit: www.belzona.com