Potentiometer valve Kopar

Reference / Dome valves

Reliable Valves for Ash Handling in Northern Europe

In 2015, a solid-fuel power plant operating in Northern Europe faced continuous challenges with its ash handling system. The pneumatic conveying setup, which relied on slide gate valves as feeding valves, suffered from frequent blockages and material leakages causing unnecessary disruptions and maintenance.

Kopar Cupola valves

Kopar Dome Valves Solved the Problem

To address these problems, the plant decided to replace its existing slide gate valves with Kopar’s robust and tightly sealed dome valves. The new valves were engineered to fit seamlessly with the existing setup, and the delivery included custom connection boxes to ensure smooth installation. 

Scope of Delivery 

Kopar delivered a total of 54 dome valves: 

  • 18 × K100T dome valves 
  • 36 × K200T dome valves 
  • Custom connection boxes for system integration

Key Benefits of Dome Valves 

  • Fully sealed structure prevents material spillage and dust emissions 
  • Simple and mechanically robust design minimises the number of moving parts and extends maintenance intervals 
  • Easy maintenance allows quick and safe servicing without long downtimes

The system has now been in operation almost ten years without any problems. The customer is very satisfied with the valves reliability, tightness and ease of maintenance, which have been key factors in the longevity of the system.

Diaphragm valves before
Slide gate valves before replacement
Dome valves after
Kopar dome valves after replacement

Conclusion 

The system has now been in operation for nearly a decade without issues. The end-user has been highly satisfied with the tight sealing, reliability, and ease of maintenance, all of which have contributed significantly to the long operational life of the system.  

Kopar Service Manager

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