Express Duct Nordfab Adapters

Each ducting adapter provides the transition between the rolled-edge and turned-out connection styles, allowing components from the two systems to be joined without changing the rest of the duct run.

This category includes Nordfab adapters in diameters from 80mm to 500mm, together with replacement Nordfab EDPM O-rings in matching sizes.

Important: This information is general. Product selection depends on duct diameter, connection type and the wider system. If you are unsure which duct adapter you need, speak to our team before ordering.

Adapters for Express Duct and Nordfab Clipped Systems

Express Duct and Nordfab clipped ducting use different connection profiles, which is why a dedicated Nordfab adapter is required when joining the two systems.

The adapters in this range are manufactured from galvanised steel and provide a connection between a rolled-edge system and a turned-out system.

Each adapter is supplied with:

• 1 galvanised steel duct adapter
• 6mm turn-outs at either end
• 1 rubber O-ring

Quick clips are sold separately.

Nordfab Adapter Sizes and Product Details

The adapter diameter should correspond with the ductwork being connected. Sizes available in this category range from 80mm to 500mm, including common options such as:

• 100mm
• 125mm
• 150mm
• 200mm
• 250mm
• 300mm
• 400mm
• 500mm

The range also includes intermediate diameters, so check the product listing carefully when matching an adapter to existing ductwork.

Nordfab EDPM Replacement O-Rings

Replacement Nordfab EDPM O-rings are also available in this category, with sizes corresponding to the adapter and duct diameters shown below.

The O-ring forms part of the connection between compatible components. One rubber O-ring is supplied with each Express Duct Nordfab adapter, while replacement EDPM O-rings can be purchased separately when required.

If you are replacing an existing O-ring, check the diameter of the ductwork and adapter before ordering.

Choosing the Correct Duct Adapter

Most customers start by matching the duct adapter diameter to both sections of ductwork, then confirming that they are joining the correct connection types.

If you are working with mixed ductwork or are not certain whether the existing system uses a rolled edge or turned-out connection, speak to the team before ordering.

Frequently Asked Questions

What is the purpose of an Express Duct Nordfab adapter?

It provides a transition between Express Duct and Nordfab-style clipped ducting where the two systems use different edge profiles.

Why can’t Express Duct be clipped directly to Nordfab ducting?

The two systems use different connection profiles. The Nordfab adapter provides the transition between the rolled-edge and turned-out connection styles.

What sizes are available?

Express Duct Nordfab adapters are available in diameters from 80mm to 500mm, with several intermediate sizes listed below.

Is an O-ring included with the adapter?

Yes. Each adapter is supplied with one rubber O-ring.

Can I buy replacement Nordfab O-rings separately?

Yes, replacement EDPM O-rings are available in this category across a range of matching diameters.

Are quick clips included?

No. Quick clips are sold separately.

What are the adapters made from?

The Express Duct Nordfab adapters in this category are manufactured from galvanised steel.

How do I choose the correct adapter size?

Match the adapter diameter to the diameter of the ductwork you are connecting and confirm that you are joining the correct connection profiles. If you are unsure, contact the team before ordering.