MAGNAPLAST Czwórnik UdBDA 110/110 (duct connector) model 146900

MAGNAPLAST Czwórnik UdBDA 110/110 (duct connector) model 146900 is a four-way ventilation connector engineered for systems with 110 mm diameter ports. It enables branching or combining of airflows in domestic and commercial HVAC installations and is compatible with rigid and semi-rigid ducts. The connector provides a compact solution for routing supply, extract or recirculation air where a four-way junction is required.

Advantages

The component is made to ensure stable mechanical joining of ducts and straightforward installation. Its geometry supports balanced airflow distribution between connected branches and reduces the need for multiple separate fittings. The design allows integration with standard 110 mm ventilation pipes and helps maintain airflow continuity with minimal disruption.

Suitable for

• Residential ventilation systems — distribution of supply and extract air
• Small commercial HVAC installations requiring a four-way junction
• Retrofit projects where existing 110 mm ducts are reused or rerouted
• Connecting rigid or semi-rigid ducts in kitchen or bathroom ventilation

Key specifications

• Connection diameter: 110 mm ports suitable for standard ventilation ducts
• Configuration: four-way (quad) junction for branching/merging airflow
• Material: durable plastic suitable for HVAC ductwork (non-metallic)
• Compatibility: designed for rigid and semi-rigid duct types with matching diameter
• Application area: indoor ventilation systems for residential and light commercial use

How to use

Position the four-way connector at the intended junction point and insert duct ends onto each 110 mm port until seats are fully engaged. Secure connections with appropriate clamps, adhesive tape or duct fasteners as required by the duct material and local installation practice. Ensure each branch is aligned to avoid sharp bends at the connection and check for airtight joints to minimise leakage.

Usage recommendations

Before installation, verify that duct diameters and materials match the connector specifications. Use corrosion-resistant clamps for long-term stability and perform a leak test after mounting. When routing multiple branches, consider airflow balance and, if necessary, add dampers or adjustable registers downstream to fine-tune distribution.