Kitchen hood elbow WADEX 450/120 duct connector 450mm to 120mm

WADEX 450/120 kitchen hood elbow is a duct connector that adapts a 450 mm rectangular or round hood outlet to a 120 mm circular duct. The adapter provides a compact transition for kitchen ventilation systems where a larger hood outlet must be reduced to a standard 120 mm exhaust pipe. It is intended for use with range hoods, extractor fans and retrofit ventilation work to ensure a secure, airtight connection between different duct sizes.

Advantages

The elbow offers a space-saving transition that simplifies installation in confined ceiling or cabinet spaces. Manufactured to match common ventilation dimensions, it enables an airtight join between a large hood outlet and a smaller circular duct, reducing air leaks and preserving extractor performance. Its design supports straightforward fitting with standard duct clamps, tape or sealant and is suitable for both new installations and retrofit projects.

Suitable for

• Connecting range hood or kitchen canopy outlets to 120 mm exhaust ducts
• Retrofit conversions where a large outlet needs reduction to a standard pipe
• Domestic and light-commercial kitchen ventilation systems
• Installations in ceilings, cupboards or restricted spaces requiring size transition

Key specifications

• Input opening: 450 mm (round or rectangular hood outlet compatibility)
• Output opening: 120 mm circular duct connection
• Function: size-reducing duct transition for exhaust airflow
• Typical materials: corrosion-resistant metal or coated sheet suitable for ductwork (material varies by model)
• Connection method: slip-fit with clamping, sealing tape or duct sealant

How to use

Measure and confirm the hood outlet dimension and the run of the 120 mm duct before fitting. Position the larger end of the elbow onto the hood outlet and secure with appropriate clamps or sheet-metal screws if applicable. Slide the 120 mm duct into the smaller end and ensure a tight fit; use duct tape or silicone sealant to create an airtight joint. Check alignment to avoid kinks or sharp bends that can restrict airflow. After installation, run the extractor to verify normal airflow and inspect for leaks around connections.

Usage recommendations

Use corrosion-resistant clamps and suitable high-temperature duct sealant when connecting to cooking exhausts. Avoid excessive bending near the transition and ensure periodic inspection for grease buildup; clean accessible sections according to the range hood manufacturer's maintenance guidelines.