Type ASW

Hit and miss dampers, made of sheet steel, for installation into rectangular ducts

Hit and miss damper with airflow straighteners

  • Nominal sizes 225 × 75 to 1225 × 325 mm
  • Perimeter angle section frame

ASW 00145321_0


  • Application
  • Description

Application

  • Type ASW hit and miss damper for supply air and extract air
  • Adjustable segments for volume flow rate balancing
  • Airflow straighteners create a homogeneous and uniform airflow
  • For installation into rectangular ducts

Nominal sizes

  • Nominal length: 225, 325, 425, 525, 625, 825, 1025, 1225 mm
  • Nominal height: 75, 125, 225, 325, 425, 525 mm

Parts and characteristics

  • Angle section frame
  • Hit and miss damper for flow adjustment
  • Airflow straighteners on the hit and miss damper elements for achieving a uniform air discharge

Construction features

  • Angle section frame without fixing holes

Materials and surfaces

  • Angle section frame and hit and miss damper elements made of sheet steel
  • Angle section frame and hit and miss damper elements dip coated RAL 9005, jet black

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

Teknisk information

Function, Technical data, Specification text, Order code

  • Function
  • Technical data
  • Specification text
  • Order code
Schematic illustration of ASW 00205185_0
① Hit and miss damper, blade for flow adjustment
② Airflow straightener


Nominal sizes

225 × 75 to 1225 × 525 mm


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 and hit and miss damper elements with airflow straighteners for flow adjustment and for achieving a uniform air discharge.

Materials and surfaces

  • Angle section frame and hit and miss damper elements made of sheet steel
  • Angle section frame and hit and miss damper elements dip coated RAL 9005, jet black

Technical data

  • Nominal sizes: 225 × 75 to 1225 × 525 mm

Sizing data

  • V _______________________ [m³/h]
  • Δpt _______________________ [Pa]

Air-regenerated noise

  • LWA _______________________ [dB(A)]

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

00130448_0

 Type
ASW       Hit and miss damper

 

 Nominal size [mm]
       L × H

Order example: ASW/625×225

Nominal size

625 × 225 mm


 

Dimensions and weight

  • Dimensions and weight
ASW 00205017_0
L Nominal length
H Nominal height


The weight table shows the available nominal sizes

ASW

H L [mm]
H 225 325 425 525 625 825 1025 1225
H m
mm kg

75

0.4

0.5

0.6

0.8

0.9

1.2

1.4

1.7

125

0.5

0.7

0.9

1.1

1.3

1.7

2.1

2.5

225


1.2

1.5

1.8

2.2

2.8

3.4

4.1

325



2.1

2.6

3.0

3.9

4.7

5.6


Installation details, Commissioning, Basic information and nomenclature

  • Installation details
  • Commissioning
  • Basic information and nomenclature

Installation and commissioning

  • Installation preferably in rectangular ducts
  • Fix the angle section frame with screws or rivets

Volume flow rate balancing -S 00152134_0

Attachments -AS, -KS, -RS and Type ASW

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 hit and miss damper, adjustable, secured with a locking screw

Principal dimensions

L [mm]

Nominal length of the ventilation grille

H [mm]

Nominal height of the ventilation grille

m [kg]

Weight

Nomenclature

LWA [dB(A)]

Sound power level of the air-regenerated noise

V [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)

Referenser

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