Express Duct Spark Traps

The galvanised-steel units in this category are available in diameters from 100mm to 500mm, allowing you to match the spark trap to the size of your existing Express Duct run. Quick clips are sold separately.

Spark traps are designed to help reduce the risk of sparks passing further through a duct, but they are not a guaranteed control measure and do not replace other safety equipment or controls required for the wider system.

Important: This information is general. Product suitability depends on the process, system design and site risk assessment. Speak to our team before ordering if you are uncertain about compatibility or specification.

Inline Spark Arrestors for Express Duct Clipped Systems

Each product combines a galvanised-steel spark trap with the connection format used across the Express Duct clip-together range. This allows the component to be incorporated into a compatible Express Duct run using quick clips.

The products are passive components, meaning they contain no powered or automatically operated parts. Their internal construction disrupts the airflow passing through the unit.

Product specifications at a glance

• Product type: Passive inline spark trap or spark arrestor
• Material: Galvanised steel
• Connection: Express Duct clipped connection
• Diameter range: 100mm to 500mm
• Working velocity: 9m/s to 25m/s
• Pressure resistance: 200Pa to 400Pa at 15m/s
• Quick clips: Sold separately

The product range includes common diameters such as 100mm, 125mm, 150mm, 200mm, 250mm, 300mm and 400mm, alongside additional sizes up to 500mm.

Express Duct Spark Trap Sizes and Compatibility

The required size is normally selected by matching the spark trap diameter to the adjoining Express Duct components. Check the diameter shown on your existing ductwork or product specification before ordering.

These products are designed for Express Duct clipped connections. We also supply adapters for joining Express Duct to other ductwork formats, including spiral ducting, flexible ducting and other clipped systems.

For standard connection formats rather than Express Duct clipped ends, view our wider range of spark traps and spark arrestors.

Express Duct Spark Traps Compared with Standard Spark Traps

Both product ranges perform the same broad role as passive inline spark arrestors. The main difference is the connection format.

The products on this page have Express Duct clipped ends, allowing them to connect to other components within the Express Duct range. Standard spark traps use a different connection format and are listed in a separate category.

Checking which ducting system you already have will help you choose between the two ranges.

Frequently Asked Questions

What is a spark arrestor?
A spark arrestor, also called a spark trap or spark arrester, is a passive inline ducting component designed to help reduce the risk of sparks travelling further through a duct run.

Is spark trap, spark arrestor and spark arrester the same thing?
These terms are commonly used interchangeably in dust extraction and industrial ducting. “Spark arrester” is an alternative spelling of “spark arrestor”.

What is different about an Express Duct spark trap?
Express Duct spark traps have clipped connection ends designed to connect with other products in the Express Duct range. Quick clips are required and sold separately.

What are the working velocity and pressure specifications?
The published working velocity is between 9m/s and 25m/s. Pressure resistance can range from 200Pa to 400Pa at 15m/s.

Does a spark trap replace a fire-suppression system?
No. A spark trap is one component within a wider protection approach. It does not replace other safety equipment or controls required for the process and installation.

How much maintenance does an inline spark trap require?
Inspection and maintenance requirements depend on the material being conveyed, usage and the wider system. Refer to the relevant product information and site maintenance procedures, or contact the team where further clarification is needed.

Can Express Duct spark traps connect to spiral ducting?
They are designed for Express Duct clipped connections, but separate adapters are available for connecting Express Duct components to spiral and other ductwork systems.