Kopar Cupola valves

Pneumatic Conveying / cupola valves

Cupola Valves – Designed to last

When the valve needs to be dust-proof, resistant to high tear and wear, withstand high pressures or hot conditions then the ideal solution is the Kopar Cupola Valve.

Interested? Contact:

Eero Lehtilä

Director, Technology

+358 41 5439786

Our cupola valves are most typically used as feeding valves in pneumatic conveying. They are completely dust-proof, so even highly abrasive materials such as sand, cement, ash, concentrates and mineral powders can be conveyed with high capacity without the fear of dust flying around.

Designed to withstand 10 bar pressures as well as high wear and tear Kopar cupola valves are made to last. Even hot conditions or ATEX environments are no problem for this robust valve.

Well over 1000 manufactured cupola valves are already feeding material around the world.

The valuable customer feedback and collected experiences on behaviour of various bulk materials over the past decades have enabled us to further develop the product and tune the technical details of it even more.

Let us make your material flow better too!

Suitable usage cases for cupola valves

Cupola valves suit extremely well in heavy industries like power plants, metallurgical plants, and in industries handling abrasive minerals and chemicals for handling of

  • concentrates
  • metallurgic dusts
  • asphaltene
  • bottom ash and fly ash
  • lime and limestone and sand
  • sulphates and oxides
  • pigments

Watch the video in Youtube

Servicing a Kopar Cupola valve is very easy. Changing the inflatable seal of the cupola is a straight forward procedure. See for yourself on the video above!

Cupola valves are at their best when you use them with our other solutions. Read more about our pneumatic conveyors and pipeline components.

Typical features of Kopar Cupola Valves:

Pressure (bar)

max. 10

Operational temperature (°C)

0… +250

Max. operating temperature with cooling (°C)


Keep you facility running

Kopar Cupola valves

Technical specifications

Probably the most typical solution using a cupola valve consists of an upper buffer bin (optional), a cupola valve, a pressure vessel (i.e. the pneumatic conveyor), and a control unit. Through the open valve the material flows from buffer bin to the pneumatic conveyor (pressure vessel), and when it is filled, the cupola valve closes and conveying sequence starts until the vessel is empty.

Used materials are carbon steel, wear-resistant steel, acid-proof stainless steel or stainless steel.

Standard sizes, meaning the inlet size (DN):
K100T, K200T, K300T

Fitted with adapter from DN65 to DN300

Solution that assures high availability

Kopar Cupola Valves are highly durable, but in case of a failure or an everyday need for servicing, the valve can be changed within an hour, and your facility is up and running again. With our solutions, there is no need for significant scale shutdowns.

Changing the inflatable seal on a cupola is very straight forward work, see the video above on how simple task it is!

Kopar Cupola valves can also be retrofitted to current systems. They are easily installed and connected with existing automation systems. They are at best in demanding applications where tightness is essential and handled bulk materials abrasive.

One of the major advantages of a cupola valve is that it opens up completely in the material flow and therefore wearing is moderate.

Test how Kopar Cupola Valve fits your production plans

Kopar Service Manager

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