KHIA headerKnow-How in Action


Belzona® Restores And Protects Gate Valve



Mining and Quarrying (MINQ)



Centrifugal Pumps (CEP)


Customer Location:

Copper Minning Company, Bulgaria


Application Date:

April, 2015


Application Situation:

Three large gate valves for water transport from the local dam to the production area.



Strong corrosion and erosion on the inner surfaces of all 3 gate valves.



Belzona 1311 (Ceramic R-Metal) 

Belzona 1341 (Supermetalglide)



Carbon Steel


Application Method:

The application was carried out according to Belzona Know-How System Leaflet CEP-1 and CEP-3. The internal welds, pitting and damage were filled with Belozna 1311 then two coats of Belzona 1341 were applied.


Belzona Facts:

Restoration of 3 valves was carried out within three days, which saved the customer time and money and also eliminated the need to buy new valves. Two months after the restoration of the gate valves, the client protected several pipes and elbows in the water supply, the client now had complete restoration and protection of the whole water system. The client has reported that all equipment and repairs are still in good working condition. 


Photographs Description

1. General view of the valve before repair

2. After blasting and flange masking

3. 1st coat of Supermetalglide applied

4. Final view of the completed application

Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


For more information about Belzona visit: