KHIA headerKnow-How in Action

VOL XXXII, NO 83

So-Called "Unrepairable" Pumps Restored With Belzona

 
 

Industry:

Steel (STEL)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Copper Processing Plant, Bulgaria

 
 

Application Date:

2016

 
 

Application Situation:

2 ten-year-old 500 LNN 1000 (single stage, double sction) pumps.

 
 

Problem:

The pumps had to work 24 hours per day for a continuous period of 5500 hours (approximately 229 days). They were experiencing serious corrosion and some erosion from the cascade of return water from the dam containing active chemical reagents (pH from 2.5 to 8), as well as a small amount of solids.

 
 

Products:

Belzona 1311 (Ceramic R-Metal)

Belzona 1341 (Supermetalglide)

 

Substrate:

Stainless Steel

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets CEP-1, CEP-2 and CEP-3. 104 kilos of Belzona 1311 and 22 kilos Belzona 1341 were used.

 
 

Belzona Facts:

The cost of purchasing  a new pump of the same size was about €35,000 - €40,000 (and only offering a 12 month warranty) compared to Belzona restoration and protection at €9,000.

 
 

Photographs Description

1&2. The corroded pumps
3.  The Belzona application underway with Belzona 1311 used to restore original profiles

4. The completed application with Belzona 1341 applied to provide overall corrosion protection

 
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