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Type DGW

Product catalog summary

General Information
The document provides details on DGW damper units designed for volume flow rate balancing in HVAC systems. These units are suitable for both supply and extract air and are intended for installation in rectangular ducts. The units feature adjustable blades for both flow rate balancing and air direction control.

Specifications
Nominal sizes range from 225 × 75 mm to 1225 × 525 mm. The damper units are constructed from dip-coated sheet steel, with an angle section frame and opposed action blades for flow adjustment. The blades are centrally supported for flow adjustment and asymmetrically supported for air direction control.

Technical Data
The document includes sizing data such as volume flow rate (m³/h), total differential pressure (Δpt in Pa), and air-regenerated noise levels (LWA in dB(A)).

Materials and Surfaces
The angle section frame and blades are made of sheet steel and are dip-coated in RAL 9005 jet black.

Installation and Commissioning
Installation is recommended in rectangular ducts, with the frame fixed using screws or rivets. The damper units feature opposed action blades that are adjustable and can be secured with a locking screw. Air control blades can be adapted to local conditions.

Order Code and Dimensions
The order code format is DGW/L×H, where L and H represent the nominal length and height, respectively. A weight table is provided for different nominal sizes.

Maintenance
The units are maintenance-free due to their construction and materials, which are not subject to wear. Inspection and cleaning should follow VDI 6022 standards.

Basic Information and Nomenclature
Key terms include nominal length (L), nominal height (H), weight (m), sound power level (LWA), volume flow rate (), total differential pressure (Δpt), and throw distance (lS).

Catalog excerpts

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

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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...

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Volume flow rate balancing ① Blade for flow adjustment

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Volume flow rate balancing Technical data Nominal sizes

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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...

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

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

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

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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

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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)

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Type DGW

Type DGW

Catalog excerpts

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