Internally Lined Spiral

Our internally lined spiral ducting combines the clean professional appearance of traditional spiral ductwork with the added benefits of built in thermal insulation and acoustic sound reduction. Each 1.5 metre length is pre insulated with 6mm Pyrosorb Class O foam, helping improve temperature control and reduce noise transfer within commercial and industrial ventilation systems.

Class O rated foam for improved fire performance
Operating temperature range from -30°C to +100°C
High density insulation greater than 90kg/m³ for strong acoustic performance
Anti bacterial and anti fungal properties
Suitable for HVAC, air conditioning, fresh air supply, and extract systems

Internally lined spiral ducting is commonly used in offices, healthcare buildings, retail units, schools, leisure facilities, plant rooms, and high specification commercial installations where both appearance and acoustic performance are important.

Compatible products include Internally Lined Spiral Tube, Internally Lined Male Collar, Internally Lined 90° Spiral Ducting Bends, and Internally Lined Volume Control Dampers.

For bulk orders, bespoke requirements, or technical advice, please call 0161 339 8901.

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Internally Lined Spiral Tube

Galvanised steel spirally wound tube internally lined with 6mm Pyrosorb foam with acoustic and thermal properties. Manufactured and cut to lengths stated. Female sizes, male fittings to fit inside. Other sizes that are not listed are available by phone or email enquiries.

*Please note* some of the more uncommon and/or larger sizes may have a longer lead time.

This product is not eligible for Free Delivery on orders over £250 due to its size or shipping requirements.

£0.00 ex VAT

Internally Lined Male Collar

Male collar made from galvanised steel internally lined with 6mm Pyrosorb foam with acoustic and thermal properties. These collars are made to join lengths of spiral tube together or other female fittings. Available in a range of sizes. Bigger sizes available by phone or email enquiries.

*Please note* some of the more uncommon sizes may have a longer lead time.

This product is not eligible for Free Delivery on orders over £250 due to its size or shipping requirements.

£0.00 ex VAT

Internally Lined 90° Spiral Ducting Bends

90° bends made from galvanised steel internally lined with 6mm Pyrosorb foam with acoustic and thermal properties. Male connection to fit inside spiral. Available in a range of sizes. Bigger sizes available by phone or email enquiries.

*Please note* some of the more uncommon sizes may have a longer lead time.

This product is not eligible for Free Delivery on orders over £250 due to its size or shipping requirements.

£0.00 ex VAT

Internally Lined Volume Control Damper

Galvanised steel volume control damper internally lined with 6mm Pyrosorb foam with acoustic and thermal properties. The dampers have male ends to fit inside ducting or other female fittings. They are used for manually balancing the flow of the air in ducting runs with a single circular blade. Bigger sizes available by phone or email enquiries.

*Please note* some of the more uncommon sizes may have a larger lead time.

This product is not eligible for Free Delivery on orders over £250 due to its size or shipping requirements.

£0.00 ex VAT