KHIA headerKnow-How in Action

VOL X, NO 14

Belzona® Protects Main Circulation Pump In Nuclear Power Station

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Nuclear Power Plant in Mexico

 
 

Application Date:

September 1991

 
 

Application Situation:

Main cooling water circulation pump

 
 

Problem:

All the pump components suffered from erosion/corrosion due to the use of sea water as the cooling medium. The effects were exacerbated by entrainment, cavitation and bimetallic corrosion.

 
 

Products:

Belzona® 1311(Ceramic R-Metal)

Belzona® 1321(Ceramic S-Metal)

Belzona® 6111(Liquid Anode)

Belzona® 5811(Immersion Grade)

 

Substrate:

Cast Iron

 
 

Application Method:

In accordance with Belzona Know-How Leaflets CEP-5, CEP-3 and CEP-4.

 
 

Belzona Facts:

Using the Belzona repair method cost the customer 30% more than using the conventional repair materials. Whereas the usual repairs lasted no more than a year before maintenance, this repair, completed nearly five years, ago is still intact. The saving to the customer, after the initial outlay of £60,000, is £45,000 and five days of downtime every year.

 
 

Photographs Description

  1. Surface of pump prior to application of Belzona® 1311 showing damage  
  2. Applying Belzona® 1311   
  3. Components of pump ready for reassembly, external surfaces protected with Belzona® 5811
 
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