Blauberg VRVS 40x20
- Description
- Characteristics
- Downloads
- Overall dimensions
- Designation key
Description
Description
FEATURES
For automatic shut-off of the air ducts and prevention of back drafting when the fan off. Suitable for installation in various premises. Compatible with 400x200 up to 600x350 mm rectangular air ducts. MOUNTINGFixing to rectangular ducts in upright position. Provide free gravity actuated movement of the blade. Install the backdraft damper into the ventilation system with respect to the air flow direction. |
DESIGN
Galvanized steel case and rotary gravity-actuated blade. The damper blade is opened with air pressure and reset automatically when the fan is off and no air pressure is produced. Manual handle with a counterweight to regulate the damper opening-closing sensitivity. |
Characteristics
Characteristics
Parameter | VRVS 40x20 | Measurement unit |
---|---|---|
Connected air duct size | 400х200 | mm |
Weight | 2.9 | kg |
Casing material | galvanized steel | - |
Air duct | for rectangular air ducts | - |
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Overall dimensions
Overall dimensions
Model | Dimensions [mm] | |||||
B | B1 | B2 | H | H1 | L | |
VRVS 40x20 | 400 | 440 | 461 | 200 | 240 | 202 |
Designation key
Designation key
Series | Flange size [cm] |
VRVS | 40x20; 50x25; 50x30; 60x30; 60x35 |