Domestic fans 
Industrial and commercial fans 
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Accessories for ventilating systems 
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Ventilation ducts and fittings 
Air distribution components 
Ventilation kits and vents VENTS KKV 355-500
- Description
- Characteristics
- Downloads
- Dimensions
Description
Description
| APPLICATIONS | DESIGN |
|
The KKV backdraft damper is designed for automatic shutoff of the air duct during the fan standby and reverse back flow prevention when the ventilation system is off. Designed for mounting of VKV, VKH, VKV EC, VKH EC fan series. |
The casing and the rotating blade is made of galvanized steel plate. The damper vane is opened under air flow pressure and is automatically closed at no air supply. The backdraft damper has gravitation operating mechanism. |
| MOUNING | |
|
The damper is mounted into the ventilation system by means of fixing the end flanges to the mating flanges in the system. Fixation is effected with galvanized bolts and clamps. The connectors are suitable for installation into vertical exhaust air ducts only (no spring). |
Characteristics
Characteristics
| Parameter |
KKV 355-500 |
Measurement unit |
|---|---|---|
Casing material  |
- | |
| Duct | for round air ducts | - |
| Connection diameter | 402 | mm |
| Weight | 3.5 | kg |
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Dimensions
Characteristics
| Parameter | Value | Measurement unit |
|---|---|---|
| ∅D | 402 | mm |
| ∅D1 | 438 | mm |
| ∅D2 | 464 | mm |
| ∅d | 9 | mm |
| H | 220 | mm |
