DOSPEL RKO Backdraft Shutter for 100mm Ventilation Ducts

The DOSPEL RKO backdraft shutter is a specialized component engineered for 100mm diameter ventilation ducts. Its primary function is to prevent the backflow of air, which ensures that your ventilation system operates with maximum efficiency. By acting as a one-way valve, this accessory effectively blocks unwanted odors, dust, and cold air from entering your living or working space through the exhaust duct, thereby maintaining a consistent and comfortable indoor climate.

Advantages

This backdraft shutter offers a reliable solution for improving the performance of exhaust ventilation systems. Its robust construction ensures long-term durability and consistent operation even under varying pressure conditions. The design is optimized for easy integration into standard ventilation setups, providing a seamless barrier that opens only when the fan is active and closes automatically when the airflow stops. This prevents energy loss and helps maintain the desired temperature and air quality within the room.

Suitable for

• Residential bathroom and kitchen exhaust systems
• Commercial ventilation setups requiring backflow prevention
• Offices and small retail spaces with standard 100mm ducting
• Preventing cold drafts in rooms connected to shared ventilation shafts

When it may not be suitable

This shutter is specifically designed for 100mm diameter ducts and will not fit systems with different dimensions. It is intended for use with standard exhaust fans and may not be compatible with high-pressure industrial ventilation systems or specialized HVAC equipment that requires specific pressure-rated dampers.

Key specifications

• Diameter: 100 mm
• Material: Durable plastic construction
• Function: Automatic backdraft prevention
• Compatibility: Standard circular ventilation ducts

How to use

Installation of the DOSPEL RKO backdraft shutter is straightforward and typically involves inserting the unit directly into the ventilation duct or attaching it to the outlet of a compatible exhaust fan. Ensure that the shutter is positioned correctly so that the flaps can open freely in the direction of the airflow. Once inserted, secure the unit to ensure it remains stable during fan operation. Regular inspection is recommended to ensure that the flaps remain free of dust or debris that could impede their movement.

What to consider before purchase

• Verify the internal diameter of your existing ventilation duct is exactly 100 mm
• Ensure there is sufficient space within the duct for the shutter mechanism
• Check the orientation of your duct to ensure the shutter can operate vertically or horizontally as required

Usage recommendations

To maintain optimal performance, periodically clean the shutter flaps to remove accumulated dust or grease. This ensures the mechanism remains responsive and continues to provide an effective seal against backdrafts.