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		Induvent Standard air curtain devices that can be installed horizontally or vertically in industrial areas. Uses patented EVOLVENT ® nozzle technology.

		Ratiovent Powerful and robust high performance air curtain devices that can be installed horizontally or vertically in industrial areas. Uses patented EVOLVENT ® nozzle technology.

		Friguvent Cold air curtain devices for use in cold store- and refrigerated areas. Uses patented EVOLVENT ® nozzle technology.




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For Teddington systems with the patented

EVOLVENT ® pressure-chamber nozzle system the airflow is compressed in the pressure chamber and distributed evenly by the nozzle over the entire air blow-out width. The airflow is accelerated by the concave nozzle cheeks to such an extent, that a concentrated, induction-poor and against the outside air directed air curtain develops. For the same screening effect as with the conventional lamella system, less air is clearly needed and consequently less energy.