Ventilation flap
A ventilation flap is a component of a ventilation system that can be used to regulate the flow of air within a system of ventilation pipes.
By changing the adjustment angle of the ventilation flap in the ventilation pipe, the opening for the air flow is enlarged or reduced.
A ventilation flap can either be operated by hand using a lever or controlled by a motor using a DDC-GA component with a flap actuator .
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Wiktionary: Ventilation flap - explanations of meanings, word origins, synonyms, translations
