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A damper basically stops or regulates the flow of air inside a duct, chimney, VAV (variable air volume) box, air handler, or other air handling equipment. A valve or plate can play the role of a damper. If heating or cooling is not required in a specific area where ther is central air conditioning, dampers could be used. Dampers also help to regulate temperature room-by-room and for climate control. Its operation can be manual or automatic.
Manual dampers are turned by a handle on the outside of a duct. Automatic dampers are used to regulate airflow constantly and are operated by electric or pneumatic motors, in turn controlled by a thermostat or building automation system.
Apart from being a top manufacturer of actuaters, controllers and other types of HVAC controls, Barber Coleman Dampers are equally popular in industrial, commercial, or residential settings.
There are different types of dampers :-
- Zone dampers
This damper is also known as a volume control damper and is used to control the flow of air in an HVAC system.A building or ara where the HVAC system is installed is divided into specific areas and each of these specific areas could be assigned specific heating or cooling zones.
Zone dampers vary in type based on the specific area of use. Typical zone dampers in home HVAC systems are electrical in nature. Whereas for large commercial establishments, compressed air or vacuum maybe be used instead of it being electrically driven.
Electric dampers come in two types - onw which uses a spring-return mechanism and a shaded-pole synchronous motor and another design where the motor is often a small shaded-pole synchronous motor combined with a rotary switch that can disconnect the motor at either open or closed positions.
For vacuum- or pneumatically-operated zone dampers, the thermostat usually switches the pressure or vacuum on or off, causing a spring-loaded rubber diaphragm to move and actuate the damper.
Advanced dampers may also support positions other than fully open or fully closed and are usually capable of reporting their current position and, often, the temperature and volume of the air flowing past the smart damper.
- Fire dampers
These are called fire dampers because they are held open by fusible links. When heat is generated, the links break and the damper is closed by a spring.
Fire dampers are usually fitted at junctions where ductwork passes through fire compartment walls / fire curtains as part of a fire control strategy. In case the damper needs to be reset, there is an alternate access door specifically for this purpose or for inspection.
Barber Coleman is a key player in the HVAC controls markety and manufactures quality products which is accepted globally. Barber Coleman makes variety of other parts, such as Barber Coleman valve parts, Barber Coleman control box, Barber Coleman control motors, Barber Coleman Thermostat. Barber Coleman Company also manufactures a large variety of sensors, indicators, valves, alarms, and other Barber Coleman parts and products for commercial, industrial and home use. Barber Coleman products for HVAC are well-known in the market.
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