Square air diffuser QLF

rectangularductmetal

Slender, space saving displacement flow diffusers in an unusual design with chamfered front edges Nominal widths 300 – 1250 mm, nominal heights 450 – 2000 mm Perforated plate, square pitch Rectangular duct connection Duct connection at the top or bottom Equalising element (perforated sheet metal basket) Exposed surface in RAL CLASSIC colours Fixing material Displacement flow diffusers discharge the air from air conditioning systems with a low velocity and near the floor. The low-turbulence airflow creates a pool of fresh air that 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. This draught-free and economical type of ventilation is also suitable for large internal spaces, such as auditoriums or shop floors, with several regularly arranged units. 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 QLF displacement flow diffusers are fitted with a perforated sheet metal basket as an equalising element; it 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 or three-way air discharge.