Circular air diffuser QLW-AZ

squareductmetal

Displacement flow diffusers with supply and extract air functions combined in one casing Nominal lengths 600 – 1200 mm Variant with cross-talk attenuator ensures very good transmission loss Perforated plate, square pitch Circular duct connections Horizontal duct connection Exposed surface in RAL CLASSIC colours Damper blade for volume flow rate balancing Cross-talk attenuator Fixing brackets Displacement flow diffusers discharge the air from air conditioning systems with a low velocity and near the floor. The low-turbulence airflow moves along the wall and towards the floor, where it eventually covers the entire floor area. The convection from people and other heat sources causes the fresh air from the pool to rise and create comfortable conditions in the occupied zone. Displacement ventilation is characterised by low airflow velocities and low turbulence. The air quality in the occupied zone is very high. Displacement ventilation with air discharge near the floor is suitable only for cooling. The maximum supply air to room air temperature difference is –6 K. Type QLW-AZ displacement flow diffusers include an equalising element which distributes the supply air flow equally across the entire diffuser area. The perforated sheet metal diffuser face helps to equalise the airflow further. One-way air discharge. The upper part of the diffuser face is used for extract air. This solution is ideal insofar as the extract air has to be removed above the occupied zone.