SpiroFlex 125 mm stamped offset elbow 45° (OC) for ventilation ducting

The SpiroFlex 125 mm stamped offset elbow 45° (OC) for ventilation ducting is a metal duct fitting designed to redirect airflow in round spiral duct systems while creating a lateral offset. It is formed with a 45° bend and an OC (offset connection) profile to join 125 mm diameter round ducts where a displaced angle is needed. The component is intended for HVAC installations, air distribution and exhaust lines where straight connectors or standard elbows cannot accommodate structural or routing constraints.

Advantages

This stamped offset elbow provides a compact solution for changing duct direction with a precise 45° angle and a built-in offset profile for easy alignment with compatible spiral ducts. The stamped construction offers consistent shape and fit, and the OC profile ensures straightforward connection to round 125 mm ductwork. The fitting is suitable for use in constrained spaces and simplifies routing by combining bend and offset in a single piece.

Suitable for

• Redirecting airflow in residential and commercial HVAC systems
• Connecting 125 mm round spiral ducts where an offset is required
• Ventilation supply, return, and exhaust lines with limited installation space

Key specifications

• Nominal diameter: 125 mm round
• Bend angle: 45°
• Type: stamped offset elbow with OC offset connection profile
• Compatibility: designed for spiral/round duct systems of matching diameter
• Application: air distribution and exhaust ventilation

How to use

Inspect the elbow and mating duct ends for damage or debris before assembly. Align the OC profile of the elbow with the corresponding end of the 125 mm round spiral duct and insert until fully seated. Secure the joint according to installation practice for metal spiral ducts, typically using lockseams, self-tapping screws, or approved fastening methods and sealing where required for airtightness. Support the ductwork and fitting to prevent undue strain on the connection and verify the routing meets required clearances and regulations.

Usage recommendations

Use this 45° stamped offset elbow in combination with compatible 125 mm spiral duct components and standard HVAC fastening and sealing materials. For best performance, ensure joints are sealed when air-tightness is required and provide mechanical support near offsets to avoid sagging or stress on the connection.