The Vents KRV 125 air damper is designed to block a round ventilation duct with a diameter of 125 mm (air duct) in ventilation systems to protect the supply or supply and exhaust system in case of threat of freezing of the heat exchanger (heater) or to block the duct after turning off the ventilation system in which water heat exchangers.
The damper is made of galvanized steel. The body of the Vents KRV damper is equipped with a platform and a rod for an electric drive. You can buy a damper in our store without an electric drive, or purchase a damper with a servo drive on our website. You can select the type of servo drive you need under the price of the product from the drop-down list.
Installation of the air damper
The air valve is connected to round air ducts of the appropriate diameter.
Dimensions
| Dimensions | D | B | H | L |
| mm | 124 | 245 | 195 | 200 |
Choke pressure loss diagram
On this diagram you can determine the pressure loss on the air flow control valve at a certain air flow. For example, if the air flow passing through the KRV 125 damper is 250 m3 per hour, then the pressure loss will be 8 Pa.
Servo drive (optional)
The damper can be equipped with drives:
- open-closed, power supply 230 V
- open-closed with return spring, power supply 230 V
- open-closed, power supply 24 V
- open-closed with return spring, power supply 24 V
With When ordering, select the desired package.
