Volume flow rate balancing Type DGW Damper units, made of dip coated sheet steel, with air control blades, for installation into rectangular ducts Damper units with opposed action blades and blades for air direction control ■■ Nominal sizes 225 × 75 – 1225 × 525 mm ■■ Perimeter angle section frame

Volume flow rate balancing General information Page General information Function Technical data Specification text Order code Dimensions and weight Installation details Commissioning Basic information and nomenclature Application – Type DGW damper units for supply air and extract air – Adjustable blades for volume flow rate balancing – Adjustable blades for air direction control – For installation into rectangular ducts Parts and characteristics – Angle section frame – Adjustable transverse opposed action blades for flow adjustment – Individually adjustable, transverse blades for air direction...

Volume flow rate balancing ① Blade for flow adjustment

Volume flow rate balancing Technical data Nominal sizes

Volume flow rate balancing Specification text This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme. Damper units, rectangular, made of galvanised sheet steel, for supply and extract air. Installation preferably in rectangular ducts. Ready-to-install component which consists of an angle section frame, transverse opposed action blades for flow adjustment and individually adjustable blades for air direction control. Materials and surfaces – Angle section frame and blades made of sheet steel – Angle...

Volume flow rate balancing Order code  Type DGW Damper unit Order example: DGW/625×225 Nominal size

Volume flow rate balancing The weight table shows the available nominal sizes

Volume flow rate balancing Installation details Installation and commissioning – Installation preferably in rectangular ducts – Fix the angle section frame with screws or rivets

Volume flow rate balancing Volume flow rate balancing When several ventilation grilles are installed on the same duct, it may be necessary to balance the volume flow rates. – Damper unit with opposed action blades, adjustable, secured with a locking screw Air pattern – Air control blades, fitted at 90° to the front blades, can be adapted to the local conditions Volume flow rate balancing -*G X

Volume flow rate balancing Basic information and nomenclature Principal dimensions Nominal height of the ventilation grille L [mm] Nominal length of the ventilation grille Nomenclature LWA [dB(A)] Sound power level of the air-regenerated noise  [m³/h] and [l/s] Volume flow rate Δpt [Pa] Total differential pressure lS [m] Distance from single grille or horizontal run section (throw distance)