KHIA headerKnow-How in Action

VOL XXVI, NO 79

Refurbishment Of Large Diffuser Pumps With Belzona

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Power station, Northern Ireland

 
 

Application Date:

2010

 
 

Application Situation:

Two 48” cooling water circulating pumps

 
 

Problem:

The pumps, each weighing over eleven tonnes without the motor, were failing to deliver sufficient flow to satisfy customer demand.

 
 

Products:

Belzona® 1111 (Super Metal)

Belzona® 1311 (Ceramic R-Metal)

Belzona® 1341 (Supermetalglide)

Belzona® 5811 (Immersion Grade)

 

Substrate:

Cast iron

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets CEP-1, 3, 4 & 5.

 
 

Belzona Facts:

After refurbishment, the pumps were returned to the power station, where they were installed, aligned and commissioned. Both pumps were returned to service within an eight week period and within budget. The customer has expressed his great satisfaction with the service provided and is already reaping the benefits of the newly coated pumps.

 
 

Photographs Description

  1. One of the diffuser pumps after disassembly
  2. Degree of damage clearly evident on the diffuser vanes
  3. Coated diffuser vanes
  4. Coating of the pump internals and bell mouth with Belzona® 1341 and Belzona® 5811 externally
 
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