Industrial Dampers

Industrial Dampers are critical equipment in various places of the ducting system from the boiler to the chimney. They can be used for isolation or flow control. Different designs can be used to give 100% seal tightness for man-safe operations.

Dampers are designed on the basis of:

  • Design and Operating values of the medium temperature, pressure and flow rate
  • Composition and nature of the medium flowing in the ductwork
  • Dust content in the medium
  • Special requirements with regard to installation
  • Space availability etc.

Each Damper is custom built to suit the application in question with regard to:

  • The temperature ranging from -65°C to +1200°C
  • Choice of material and composition
  • Steel part and steel quality
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Butterfly

Butterfly dampers are an excellent choice when sealing efficiency is more important than flow modulation. They provide reasonable control while not compromising sealing efficiency. You would see these dampers mainly in all mining, cement, industrial or power applications where abrasion, corrosion and dust-loading are prevalent.

Louver

When flow control is of utmost importance, a Louver damper is a perfect choice. KELD manufactures louver dampers in 2 configurations - parallel blades and opposed blades. Depending on the need of the customer, an appropriate configuration can be chosen.

Guillotine

Guillotine dampers are perfect for flow isolation. With the blade and the drive system going completely out of the flow when open, these dampers offer the least pressure drop in the duct. Depending on the application, KELD can offer Guillotine dampers with a solid blade or a hollow core blade. Many applications require complete man-safe operations on the other side of the Guillotine and hence the need for a seal air fan.

Slide Gate

Slide Gate dampers are similar to Guillotine dampers, but are mainly used for solid media applications. Ideally suited to be installed in the chute or hopper, these dampers act in effectively opening or closing the flow of material in the duct.

Diverter / Eccentric

These 3-way dampers are suited best in bypass systems. A single Diverter damper replaces two Guillotine / Louver dampers and is controlled by just one actuator - thus making it a very cost effective choice.

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