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VOL XXVIII, NO 214

Belzona® Repairs Butterfly Valve Gasket

 
 

Industry:

General Industry (GIND)

 
 

Application:

Gaskets, Seals and Shims (GSS)

 
 

Customer Location:

MO, USA

 
 

Application Date:

September 2006

 
 

Application Situation:

The customer scheduled a maintenance outage to build the gasket with the Belzona elastomer for the butterfly valve to prevent delay with reinstalling.

 
 

Problem:

The butterfly valve from the main circulating water system of the power plant was removed for maintenance and required a new gasket prior to reinstallation.

 
 

Products:

Belzona 2131 (D & A Fluid Elastomer)

 

Substrate:

Cast Iron and Steel

 
 

Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet GSS-1 using Belzona 2131. After grit blasting the surface, heavy gauge wire was used to form a channel to apply Belzona 2131 to the proper thickness.

 
 

Belzona Facts:

The Belzona solution was less than the cost of the OEM gasket, but was chosen more to alleviate the difficulty of positioning the valve back in-line below the surface of the river with a separate, loose gasket which could easily lead to mechanical damage and/or improper sealing.

 
 

Photographs Description

  1. Blasted butterfly valve gasket 
  2. Application of product
  3. Finished repair 
  4. Close-up of gasket prior to installation
 
 
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For more information about Belzona visit: www.belzona.com