Fire Damper

Fire Damper - Consultation, Installation & Maintenance

Fire dampers (also known as fire protection dampers) are installed in ventilation systems, which normally ensure adequate air quality within the building. In the event of a fire, the fire damper closes automatically and prevents the spread of smoke, fire, and toxic gases through ventilation ducts into other parts of the building, floors, or fire compartments (mechanical shut-off device). This means fire dampers protect both human lives and the building itself.

How a fire damper works

In the event of a fire, fire dampers with holding/impulse magnets are triggered electromechanically, pneumatically, or via a fusible link (72 °C or 95 °C). Limit switches are generally installed to monitor the open and closed position of the fire damper. Depending on the system design, it is automatically shut down. The fire resistance duration of a fire damper can range from 30 to 120 minutes. 

Fire dampers comply with the following standards

• EN 1366-2 (in accordance with EN 13501-3)
• Requirements of the German Institute for Building Technology (DIBt)
• Ventilation Systems Guideline (LüAR)

Use of smoke extraction dampers

Smoke extraction dampers are used for the smoke extraction of the building or of specific sections of the building. As soon as a detector is triggered by smoke, smoke extraction fans are automatically activated, drawing in the smoke and diverting it out of the building via a special duct system.

Types of fire dampers

• various types of fire dampers, some with cold smoke detection
• fire protection disc valves
• overflow dampers
• kitchen exhaust dampers

Maintenance interval of a fire damper

Fire dampers must be maintained and inspected at least once a year by a qualified expert. Depending on the degree of contamination, maintenance may sometimes be required at shorter intervals. Examples include dusty changing rooms or kitchens where a lot of grease is used. 

All-round care package: CWS provides consultation, planning, and implementation for the installation of fire dampers. Upon completion, you receive all documentation on request, including photos, installer certificate, installation certificate, manufacturer documents, and the declaration of performance for each individual fire damper. On this basis, you, the building authority, and your insurer can verify that the fire dampers have been installed correctly. With a maintenance contract from CWS, we carry out the maintenance of your fire dampers on schedule. Request a quote now.