Louvre Dampers

Commonly known as Multi Blade Dampers, Louvre Isolation Dampers, or Louvre Control Dampers.

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Typical Applications

  • Ventilation systems
  • Flue gas
  • Recirculation systems
  • Isolation or Control of gas flows.

Sizing Options

Getting the size right is pivotal in any industrial application. But it's not just about size; knowing the correct dimensions and shape is equally crucial.

For Louvre Dampers, we're able to work with the following:

  • Minimum 300mm Diameter.
  • Maximum 3000mm Diameter.
  • Circular, Square, and Rectangular shapes.
  • Modular if required.

Our dedication to precision extends to custom manufacturing, ensuring each Damper aligns perfectly with specific needs and requirements.

Materials

We understand that different applications may require a specific material. We have you covered and offer a range of materials which we will construct your unique dampers from.

These include: 

  • Mild Steel / Carbon Steel
  • Stainless Steel
  • Nickel Alloys
  • Duplex Stainless Steel

Controls

Discover the types of control methods that we offer for Louvre Dampers and how they can be best suited for your business.

Choose from:

  • Manual.
  • Actuated Electric / Pneumatic / Hydraulic.
  • Position Control, Switch feedback ON/OFF, or Modulating.
  • Multiple Switch Options Including V3 Mechanical, P&F Sensors, Magnum XT90.
  • ATEX Certification: Eexd, Eexia, Eexme.

Additional Features

There may be certain applications which require a more specialist solution. Rest assured that we're able to create a one-off solution for your airflow issues.

An example of what we're able to offer as add-ons to your dampers include;

  • Food quality materials.
  • High-temperature bearings.
  • Seal arrangements to give 100% sealing.
  • C5 Paint Specification.
  • Galvanised Finishes.
  • Opposed Blade Operation.
  • Parallel Blade Operation. 

Louvre Dampers Explained

In Essence, Louvre Dampers consist of multiple blades that are linked together to achieve flow control within a small duct section.

Did You Know?...

Badger Damper have developed a blade formed longitudinally for rigidity but represents a very small face area to the flow. The free area is often better than 95%. The Badger Damper Blade is a configuration which has been developed and proven over the last 25 years.

The Badger blade creates minimum noise generation with the blade design achieving a very much higher free ratio than an aerofoil blade, resulting in a lower pressure drop in the open position.

Speak to the experts

Call today to book a meeting with our engineers

    Aerofoil section blades suffer from a velocity increase of 20% with consequent changes of static pressure.

    These units feature large diameter shaft which are welded to the blades. There is therefore no possibility of the blades becoming detached. Our operating levers utilise our special key design to guarantee linkage alignment and long life.

    The shafts turn in bushes or bearings depending upon the application and customer requirements. In many applications they can be considered zero maintenance.

    Blade motion can either be parallel (all blades rotate in the same direction) or opposed (alternating contra rotation) as required by the application.

    Any weldable material may be specified for construction. Badger damper regularly supply units in stainless steel, or with stainless steel blades in a mild steel case which has been hot dip galvanized after fabrication.

    Our unique shaft and operating lever connection gives total security.

    Actuation of Louvre Dampers

    A full range of operators is available. Manual controls employ either a lever & locking quadrant or a lead screw type mechanism driven by a handwheel.

    For power operation we can supply electric, pneumatic, or electrohydraulic with all types of instrumentation including positioners, position re-transmitters and switches. Please contact us for more details.

    These can be supplied within high temperature applications.

    Discover The Types of Lourve Dampers

    Click to learn more about the different types of Louvre Dampers that we're able to manufacture.

    Fan Inlet Louvre
    Mixing Box Damper
    Opposed Blade
    Parallel Blade

    Damper Solutions

    Single Blade Dampers
    Inlet Vane Controllers
    Louvre Dampers
    Non Return Dampers
    Diverter Dampers
    Twin Blade Dampers
    Isolation Dampers
    Vacuum Break