Industrial Ducting

 Dampers in Industrial Ducts

The utility of air duct sis not limited to residential spaces. They are also used in industries where they are quite indispensable. And on the top of it the productivity, efficiency and safety of these industries are dependent largely on smooth running these conduits. Say for instance a factory that produces medicinal drugs; the whole production unit will need to maintain an optimum temperature during production as wells storage of the products. Otherwise the drugs would become unsuitable foe use. The ducts in industries do not only supply cold or hot air to the various sections of the factory. They do other jobs as well. They exhaust out flu gases at desired temperature that are produced during a combustion process. They also play a critical role in movement of gases to various areas of the production unit.

Dampers and louvers are an essential part of industrial ducts. The dampers and louvresserve a variety of purposes such as preventing water penetration and back drafting. These are basically regulating devices that control the flow of air and gases through the ducts. Industrial dampers are manually adjustable or automated.

 Butterfly Dampers

This is a very commonly used industrial damper. The main functions that it does are controlling flow of air and facilitating low leakage. It controls the flow of dirty gases and other pollutants in steel mills. These are also used to control the flow of gases from bag houses. A bag house is an air pollution control device that traps and removes particulates present in the gaseous release of a commercial combustion processes. In industries where refining, incinerating or smelting processes take place flu gases are released at high temperature. A butterfly damper is use to control the flow of flue gas. In nuclear energy generating plants these dampers are used to isolate radioactive gases.

 Guillotine Dampers

Seal-air-Guillotine dampers are used for foolproof isolation and low pressure drop. These do not need much space to fit themselves in the ducts. These dampers are not subject to damage due to furnace puffs and slight over pressure incidents.It can open and close itself even if there are considerable particulate deposits in its path. It requires less of air seal for total isolation. It is not subject to much wear and tear due to minimal moving parts. The dampers are quite heavy. They are used widely in biotech labs, pharmacological facilities, hospital isolation areas, and military and nuclear facilities.

 Multi Louver Dampers

These dampers contain a series of blades which rotate around a shaft present in the center. The blades are connected through linkages. These are two-ways flow damper.Multi louver dampers regulate the flow of gas and air in dry and wet surroundings. The damper would remain closed unless the temperature reaches a certain level. The industrial applications of these dampers include - stack isolation, pre-spinning of duct air, pressure relief applications, and modulating of airflow.

 Wall Louvers

Louvers have a host of industrial applications. However they find their primarily use in supply/exhaust ventilation systems. They can have aluminium as well as galvanized construction with depths up to 8 inches,

 Wall and Roof Mounted Dampers

Wall and roof mounted dampers are usually used in mechanical HVAC ventilation systems. They are used to control back drafting. Back drafting hipped when harmful gases that are to be exhausted out through the flue pipe get inside the air duct to reach the inhabited places. These dampers are either gravity controlled or integrated with electric or pneumatic operators. They are generally made of galvanized steel, aluminium or stainless steel.


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