SpiroFlex 200/160 reducing tee (galvanized) 90° for round duct connection

SpiroFlex 200/160 reducing tee (galvanized) 90° for round duct connection is a sheet-metal fitting designed to branch or join round ventilation ducts with nominal diameters 200 mm and 160 mm. Constructed from galvanized steel, the tee delivers corrosion-resistant performance for HVAC supply and exhaust systems. The 90° branch allows a compact change of airflow direction while maintaining compatibility with standard round ductwork connections.

Advantages

The galvanized construction provides durable corrosion protection suited to typical indoor HVAC conditions. The reducing geometry enables a smooth transition between a larger main duct and a smaller branch, promoting controlled airflow distribution. The 90° branch and round connection profiles simplify installation with standard circular duct fittings and clamps. The item is dimensioned for common residential and commercial ventilation applications where space-efficient branching is required.

Suitable for

• Branching a 200 mm main round duct to a 160 mm round branch in supply or exhaust systems
• Residential ventilation installations such as kitchens, bathrooms, and utility rooms
• Commercial HVAC where compact 90° round-duct branching is needed

Key specifications

• Material: galvanized steel
• Configuration: reducing tee with 90° branch
• Main duct nominal diameter: 200 mm
• Branch duct nominal diameter: 160 mm
• Connection type: round duct profile compatible with circular ducts and clamps
• Typical applications: supply or exhaust air distribution in ventilation systems

How to use

Fit the reducing tee into the duct run by inserting the round ends into the mating circular duct segments and secure with appropriate clamps or rivets. Ensure the branch is oriented at 90° to the main duct in the required direction and that sealing tape or gaskets are applied to joints to prevent air leakage. Confirm that internal airflow direction matches installation planning and that the downstream ducting is supported to avoid strain on the fitting.

Usage recommendations

Verify compatibility with the ventilation system's airflow rates and pressure class before installation. Use corrosion-resistant clamps and sealants for longer service life in humid environments. Regularly inspect joints and supports during maintenance to maintain airtight connections and consistent airflow distribution.