What is a damper?
A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air handler, or other air-handling equipment. A damper may be used to cut off the central air conditioning (heating or cooling) to an unused room or to regulate it for room-by-room temperature and climate control. Manually adjusted dampers have a simple knob or lever and are generally used for balancing airflow during commissioning and are not subsequently adjusted.
Motorised VCDs are normally part of an automatic control system to either modulate the airflow in a part of the system according to demand or to shut off a part of the system when not in use. VCDs can take the form of a simple flap on a single pivot, or multiple blades operated simultaneously via a gear or lever linkage system.
Fire dampers or fire-smoke dampers are designed to shut off a duct in the event of a fire, to stop the fire spreading from one area to another via the duct. The most common type has a spring-loaded metal curtain device that is released by a fusible link when exposed to high temperatures.
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Reliable, efficient service as always from Noel and the team. Carried out a complete overhaul of our air handling system.
Brendan, Time Bar & Venue, (Cookstown – Belfast)
Handled the complete Air Conditioning and Ventilation installation for our own offices will definitely be involved in future projects.
Micheal McFall, Hollandale Projects ( Derry – Londonderry)
Duct Services have carried out all installation, maintenance, and cleaning of our canopy and extract systems in our shops across the UK and Ireland. Most competitive price for a high-quality job.
-Asim Sattar, Chickn Lickn ( Belfast – Dublin)