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Internally Lined Spiral
Our internally lined spiral ducting combines the clean, professional appearance of traditional spiral ducting with the added benefits of built-in thermal and acoustic insulation. Each 1.5-metre length is pre-insulated with 6mm Pyrosorb Class O foam, providing excellent sound absorption and temperature control without compromising the iconic spiral wound look.
✅ Class O-rated foam for enhanced fire resistance
✅ Operating temperature range: -30ºC to +100ºC
✅ High-density insulation: >90kg/m³ for superior acoustic performance
✅ Anti-bacterial & anti-fungal properties – ideal for HVAC and air conditioning systems
This ducting is perfect for environments where both aesthetic appeal and performance are key — such as commercial offices, healthcare, retail, or high-spec residential installs.
For bulk orders, bespoke lengths, or technical queries, get in touch with our team.
Internally Lined Spiral Tube x 1mtr
Galvanised steel spirally wound tube internally lined with 6mm Pyrosorb foam with acoutic and thermal properties. Manufactured and cut to 1 metre lengths. Female sizes, male fittings to fit inside. 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 larger lead time.
£0.00
Internally Lined Male Collar
Male collar made from galvanised steel internally lined with 6mm Pyrosorb foam with acoutic 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.
£0.00
Internally Lined 90° bends
90° bends made from galvanized 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.
£0.00
Internally Lined Volume Control Damper
Galvanised steel volume control damper internally lined with 6mm Pyrosorb foam with acoutic 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.
£0.00