AR-200 Non-return or positive pressure dampers

Chart and Product Codes 4

AR-200 non-return or positive pressure damper Dimensions Description Non-return or positive pressure damper with flat fins of 1.5-mm thick galvanized plate and U-frame of 2-mm galvanized plate with zinc-coated steel shafts that turn in nylon bushings. The unit includes zinc-coated steel counterweights and galvanized steel housing for wall recessing and absorption of the counterweight length. Application The AR-200 is a mechanically operated non-return or positive pressure damper which allows air to flow in one direction, preventing air from returning in the opposite direction. The unit can also...

Installation The AR-200 is installed in one of the following two ways, depending on how it is to be used: - Air supply: the damper is coupled to the duct with the fins in the same direction as the air flow. - Air suction: the damper is coupled to the duct with the fins toward the fan. The damper is installed in vertical or horizontal position, such that the shaft is parallel to the floor. The unit is fitted with one or two counterweights, depending on damper size. The counterweights can be placed in multiple positions within the 360° of shaft rotation, in order to control the air pressure or...

Total pressure - front velocity chart Total pressure (Pa): Pressure drop. Front velocity (m/s): Air velocity calculated from LxH cross-section. Example: AR-200-AL-X-0600-0300 AR-200 non-return damper + untreated bird netting of 600 x 300

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KOOLAIR, S.A. Calle Urano, 26 Poligono industrial nº 2 – La Fuensanta 28936 Móstoles - Madrid - (España) Tel: +34 91 645 00 33 Fax: +34 91 645 69 62 e-mail: [email protected]