KHIA headerKnow-How in Action

VOL XXVIII, NO 134

Belzona® Repairs And Coats Pump Case

 
 

Industry:

Mining and Quarrying (MINQ)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Mine, Brazil

 
 

Application Date:

May 2006

 
 

Application Situation:

Pump case.

 
 

Problem:

The equipment presented minor wear due to localized corrosion on the casing. It was necessary to restore the worn areas and apply a lining with excellent corrosion and high temperature resistance. The fluid consists of a caustic soda solution with few solids at a temperature of 81° C. Speed rotation: 1789 rpm.

 
 

Products:

Belzona 1111 (Super Metal)

Belzona 1311 (Ceramic R-Metal)

Belzona 1391 (Ceramic HT)

 

Substrate:

Cast Iron

 
 

Application Method:

The repair and coating were carried out in accordance with Belzona Know-How System Leaflets CEP -3 & CEP-5. The surface was prepared by dry abrasive blasting at near white metal. After the surface preparation, Belzona 1311 was applied to rebuild the casing and Belzona 1111 was applied on the ring seating. After that, a single coat of Belzona 1391 was applied with a 600 to750 µm thickness on the entire internal surface of the casing.

 
 

Belzona Facts:

Belzona offered efficient repair and coating to pumps without the risk of distortion. Belzona 1391 offered excellent protection operating at 81°C.

 
 

Photographs Description

  1. Equipment assembled before the repair
  2. Case refurbishment with Belzona 1111
  3. Case refurbishment concluded with Belzona 1111
  4. Service concluded, case lined with Belzona 1391  
 
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