50-PR Square perforated face diffusers

CONTENTS Square perforated face diffusers 54-FR Description 2 Quick selection table 4 Square perforated face diffusers 56-FR Description Dimensions Quick selection table and coding

Description Type 54 FR, steel sheet square perforated face diffuser. Finishes Painted in white RAL 9010. Special finishes available upon request. 54-FR-I Square perforated face diffuser for supply air. By means of the 4 interior directional plates discharge can be obtained in 1, 2 or 4 directions (54 FR-I-1, 54 FR-I-2, 54 FR-I-4). When these plates are removed a vertical discharge is obtained (54 FR-I-0). The plenum is provided with a normalised duct connection according to ISO standard. 54-FR-R Square perforated face diffuser for return air. For both this type and the supply version the duct...

Coding 54-FR Series, steel sheet diffuser 1 direction 2 directions 4 directions vertical discharge (without directional plates) - without plenum +PS with plenum, with top duct connection +PL with plenum, with lateral duct connection PE-45 polystyrene plenum box for diffusers with plate of 595 x 595 mm Size Dimensions from 0160 to 0300 315 - 625, according to table

FLOW RATE Diffusers type 54-FR-I-2 FLOW RATE Symbols Vk = Effective velocity in m/s X = Throw in m Pt = Total pressure in Pa NR = Noise level index in dB The selection should take into account, for a given air flow rate, the noise level and the throw. The throws given in the table correspond to a maximum velocity in the occupied zone of 0,25 m/s.

FLOW RATE Diffusers type 54-FR-I-0 (vertical discharge) FLOW RATE Symbols Vk = Effective velocity in m/s X = Throw in m Pt = Total pressure in Pa NR = Noise level index in dB The selection should take into account, for a given air flow rate, the noise level and the throw. The throws given in the table correspond to a maximum velocity in the occupied zone of 0,25 m/s.

Diffusers type 54 FR-R (return air) Series 50-PR General notes on the quick selection tables : - These selection tables are based on full-scale laboratory tests according to standards ISO 5219 and ISO 5135 and 3741. - The jet is adherent (except for type 54 FR-I-0), i.e. the diffuser is mounted aligned with the ceiling. - Room height is 3 ± 0,5 m. - The AT is equal to 10 °C, the temperature difference between the room and the supply air. - Sound index NR is based on sound power, without room attenuation and without damper (mounting according to ISO). - Throws given correspond to a maximum velocity...

Description Square perforated plate diffuser, model 56-FR suitable for supplying hot and cold air with a large temperature difference with respect to ambient temperature. The diffuser is installed on the ceiling and can be equipped with a plenum top or side of spigot. It incorporates an internal baffles that allow a free choice of the discharge direction, also after mounting. The pattern of radial airflow and high induction effect allows a high number of air changes. Model available for installation of return. Standard diffuser plate 595 x 595 mm. Finishes Perforated plate in galvanized steel. Plenum...

open baffle close baffle Throw in m for maximum velocity in the occupied zone of 0,25 m/s and AT=0°C Total pressure Noise power level

Serie 50-PRQuick Selection Table open baffle close baffle Throw in m for maximum velocity in the occupied zone of 0,25 m/s and AT=0°C Total pressure Noise power level

Serie 50-PRQuick Selection Table

Serie 50-PRQuick Selection Table open baffle close baffle Throw in m for maximum velocity in the occupied zone of 0,25 m/s and AT=0°C Total pressure Noise power level

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