VELAIR Round Reducing Adapter 125mm x 100mm | Ultraflex 20648V

Product description:

The Ultraflex VELAIR round reducing adapter 125mm (5") to 100mm (4") is a specialized ventilation component designed to connect ducts and components of different diameters in ventilation, air conditioning, and heat recovery systems. The adapter allows a smooth transition from a larger duct with a diameter of 125 mm to a smaller one with a diameter of 100 mm, which is especially useful during system upgrades or connecting devices with different airflow requirements. The product is made of high-quality plastic resistant to corrosion, moisture, and typical conditions found in ventilation installations. Installation of the adapter is intuitive – simply insert it into the appropriate ducts or fittings, and the connection tightness can be further enhanced using hose clamps or sealing tape. The adapter is used in both residential and commercial construction wherever it is necessary to adjust the diameter of ventilation ducts to the requirements of devices or installation architecture. Thanks to precise manufacturing, it ensures minimal pressure loss and mechanical stability of the connection.

Technical parameters:

• Inlet diameter: 125 mm (5")
• Outlet diameter: 100 mm (4")
• Material: plastic (PVC or ABS)
• Color: white
• Connection type: push-fit
• Application: ventilation, air conditioning, heat recovery systems
• Compatibility: round ducts and fittings 100 mm and 125 mm
• Installation: internal/external
• Corrosion resistance: yes
• Moisture resistance: yes

Product advantages:

• Enables quick and tight connection of ducts with different diameters without the need for additional tools
• High resistance to moisture and corrosion, ensuring long service life in challenging installation conditions
• Compatibility with most standard 100 mm and 125 mm ventilation ducts and fittings
• Simple push-fit installation reduces installation time and minimizes the risk of assembly errors
• Smooth internal surface reduces airflow resistance and facilitates cleaning
• Lightweight yet durable construction does not burden the installation
• Suitable for both residential and industrial installations
• Dimensional stability even with changes in temperature and humidity
• No need for specialized tools for installation
• Aesthetic appearance allows installation in visible locations

Additional information:

• Manufacturer: Ultraflex
• SKU: 20648V
• Model/Series: VELAIR
• Product type: round reducing adapter 125/100 mm
• Warranty: manufacturer’s
• Country of origin: Italy (based on Ultraflex brand information)
• Compliance/Certificates: compliance with ventilation system standards (confirmed by official distributors)
• Installation note: it is recommended to use hose clamps or sealing tape to increase connection tightness