Flap type smoke ventilators


General Description

Dynavent double flap smoke Ventilators are natural louvered ventilators manufactured from tough corrosion-resistant aluminium and are available in a wide range of sizes and control options suitable for most industrial and commercial buildings.

These highly efficient, extremely versatile units comes with a variety of impressive features and are very easy to maintain.


Fire Protection

Dynavent natural smoke ventilators have been successfully tested by third party certifications in accordance with the procedure specified in EN 12101-2:2003, Annexure G which requires that the ventilator opens fully with no closure, partial reclosure or distribution which would reduce the throat area by more than 10%, when subjected to heating condition of 300 °C for 30 min.

High Efficiency

  • Aerodynamically tested as per EN 12101-2:2003, Annexure B.


  • Corrosion-resistant construction with airtight gaskets which prevent entry of dust particles.


  • Dynavent Open Sky Roof Ventilators are classified to Re1000 as per EN12101-2:2003 Annexure C.

Wind load

  • The product is classified under WL1500 as per EN12101-2:2003, Annexure F.


  • A wide range of control options (electric) are available.


  • Can be fitted easily to any flat roof or glazed construction.
  • Can be installed at any angle

Technical Support

  • In-house trained engineers can provide a pre-order design service.


  • To keep escape and access routes free from smoke for evacuation of people.
  • Facilitate firefighting operations by creating a smoke free layer.
  • Protects the materials inside the factory/warehouse to reduce financial losses by preventing smoke logging.
  • Delays/prevents flashover and subsequent growth of fire.
  • Low maintenance and durable.



  • Warehouses.
  • Workshops.
  • Factories.
  • Shopping Malls.
  • Supermarkets.

  • Intertek
  • applus
  • ul
  • amca
+91 7767800015/16