KHIA headerKnow-How in Action

VOL XXXIII, NO 105

Multistage Pump Gets The Belzona® Treatment

 
 

Industry:

Fluid Flow (FLOW)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

South Africa

 
 

Application Date:

July 2018

 
 

Application Situation:

Multistage boiler feed water pump processes operating at high pressure and flow velocity.

 
 

Problem:

During routine maintenance some signs of mild impingement erosion and corrosion, leading a small amount of wall loss, was identified.

 
 

Products:

Belzona 1111 (Super Metal)

Belzona 5821

 

Substrate:

Carbon Steel

 
 

Application Method:

Application was carried out in accordance with System Leaflets CEP-05 and CEP-03.

 
 

Belzona Facts:

The customer requested a coating to reduce overall maintenance requirements and increase time between routine shutdowns. A number of coatings were considered, but Belzona 5821 gave the best balance between cost and performance for the light erosion resistance required. Re-building was required prior to the application of the coating. Instead of conventional weld repair Belzona 1111 was selected due to ease of application (no machining required) and compatibility with the Belzona coating.

 
 

Photographs Description

1 - Damaged Pump prior to application 2 - Repaired and coated casing 3 - Repaired and coated end cover 4 - Completed application ready for re-assembly

 

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com