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Barber Coleman is a key player in the HVAC controls market and manufactures quality products which are accepted globally. Barber Coleman makes a variety of other parts, such as Barber Coleman valves, Barber Coleman controls, Barber Coleman motors, Barber Coleman Thermostat. Barber Coleman Company also manufactures a large variety of sensors, indicators, valves, alarms, and other parts and products for commercial, industrial and home use. Barber Coleman products for HVAC are well-known in the market.
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 there 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 actuators, 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.
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
Electric dampers come in two types - one 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.
- 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.
- Rotary dampers
These dampers are used to limit the movement of a moving piece of equipment. Rotary dampers absorb and slow down rotary motion for the changes of vibration, noise, and machine component wear.
Rotary dampers are found in a variety of industries such as furniture, cabinets, automotive, and the electronics industry (e.g., CD door or tray opens slowly). Rotary dampers can also be found in Camcorders, DVD players, cell phones, copy machines, laptops etc. Rotary dampers are also used for deployment systems by the aerospace industry.
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