More about Dampers

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Dampers can refer to diodes used in televisions, specialized flow-control fittings, and devices used to dampen vibrations or movements (including sound). Dampers are most commonly found in the latter two applications, especially as shock absorbers and air regulators.

In their capacity as air-regulation devices, dampers are typically valves or movable plates that help control the flow of air or draft in a system. There are HVAC dampers, which aid in conditioning and direct airflow. These dampers assist in climate control in various areas. Stove, furnace and chimney dampers are used to discharge and regulate air while preventing the external environment from interfering with operations. Louver dampers are air-regulation mechanisms that provide gas flow advantages with immediate shut-off capabilities. Butterfly and guillotine dampers are other designs of air-control dampers. Air dampers can be controlled manually, or by electric, hydraulic, or pneumatic systems, and have automatic control capabilities.

Vibration dampers are designed to absorb shock and vibration from moving parts or external sources in order to ensure system stability and reduce wear on system components. Compression dampers are components used to control motion in various operations. They are an effective means of lowering weight at a steady rate or ensuring the regular movement of an opening and closing device (such as a door). Extension dampers provide the same use as compression dampers, but in a different direction. Compression dampers are designed to control movement as a shaft is pushed into a cylinder, while extension dampers control movement as the shaft is pulled out. Dual dampers provide control in both directions. These devices contain a piston rod that slides into a cylinder containing hydraulic fluid. The hydraulic fluid enables the shock absorber to reduce speed in fast loads.

Acoustic dampers are used to reduce unwanted noise, control specific sound-related vibrations, and compress peaks in an amplification curve. They can be used in recording devices, sound studios or industrial applications.