Wall-mounted displacement air diffuser QLV

circularother shapes

POLYGON CASING, 90° OR 180° AIR DISCHARGE, FOR COMFORT AND INDUSTRIAL ZONES Polygon displacement flow diffusers Spigot diameter 160 – 630 mm, nominal height 500 – 1750 mm Volume flow rate range 17 – 915 l/s or 62 – 3295 m³/h Perforated plate, square pitch Circular duct connection Duct connection at the top or bottom Integral airflow straightener and conical equalising element Optional equipment and accessories Wall mount Damper blade for volume flow rate balancing Exposed surface in RAL CLASSIC colours Displacement flow diffusers for air discharge near the floor, suitable for comfort and industrial zones with special demands on architecture and design. With three-way (90°) or five-way (180°) air discharge for low-turbulence displacement ventilation. Polygon casing for installation on a wall. Ready-to-install component which consists of a casing with spigot at the top or bottom, an equalising element and airflow straightener that ensure uniform supply air discharge, and a perforated sheet metal diffuser face. Spigot suitable for circular ducts. Spigot suitable for ducts to EN 13180. Sound power level of the air-regenerated noise measured according to EN ISO 5135. SPECIAL CHARACTERISTICS - Three-way or five-way air discharge - Duct connection at the top or bottom - Optional damper blade for volume flow rate balancing MATERIALS AND SURFACES - Top cover, base, spigot and side parts made of galvanised sheet steel - S7: Top cover and base made of aluminium - Corner and edge trims are extruded aluminium sections - Airflow straightener made of plastic - Equalising element made of synthetic fibres - Lip seal made of rubber