Galvanised spiral ducting, spiral tube and ductwork fittings for commercial, industrial and HVAC ventilation systems across the UK.
Our spiral ducting tube is available in a wide range of diameters, with matching bends, reducers, branches, dampers and other spiral duct fittings. Our ductwork complies with DW144, the recognised UK specification for sheet metal ductwork.
Spiral ductwork provides an efficient way to supply fresh air and extract stale or contaminated air from buildings. Its circular construction and long 3m tube lengths reduce the number of joints required compared with rectangular ductwork, helping to minimise air leakage throughout the system.
We supply a large range of spiral ductwork products including 45° bends, 90° bends, 60° bends, Y pieces, T pieces, reducers, saddles, shoes & boots, volume control dampers, blast gate dampers, round access doors and flat access doors.
Our galvanised spiral ducting is suitable for commercial ventilation, industrial extraction and HVAC installations where reliable airflow and reduced leakage are important. Spiral ducting can carry air at temperatures of around 200°C continuously and around 250°C intermittently. Using it above the recommended temperatures may result in discolouration or corrosion. Read more about spiral ducting and fittings.
We supply spiral tube and duct fittings in a wide range of sizes, helping contractors, installers and facilities managers source complete spiral ductwork systems from a UK supplier. Products not listed online may also be available.
For product advice, availability or larger requirements, contact us at orders@alphatube.co.uk.
30-degree bend made from galvanised steel with male ends for connection to spiral ducting and flexible tube. Available in sizes from 63mm to 710mm. Larger sizes available on request. Please note some uncommon sizes may have longer lead times. Full specification details below.
High quality spirally wound ducting made from durable galvanised steel, cut to standard 1.5 metre lengths. Ducts are manufactured to female sizing and designed to accept male fittings for easy installation.
Please note: some uncommon sizes may have extended lead times.
90° bend designed for use with spiral tubing, manufactured from robust galvanised steel. Supplied with male ends for straightforward connection to spiral ducting or flexible tubing. Standard sizes range from 63mm to 710mm, with larger sizes available by telephone or email.
Please note: certain less common sizes may carry a longer lead time.
45-degree bends to suit spiral tubing, made from galvanised steel. Male ends to fit in spiral ducting or flexible tube. Available in sizes ranging from 63mm – 710mm. Bigger sizes available by phone or email enquiries.
*Please note* some of the more uncommon sizes may have a larger lead time.
Male collar made from galvanised steel. These collars are made to join lengths of spiral tube together or other female fittings. Available in sizes ranging from 63mm – 630mm. Bigger sizes available by phone or email enquiries.
*Please note* some of the more uncommon sizes may have a larger lead time
Female collar made from galvanised steel. These collars are made to join male fittings together such as bends or tees. Available in sizes ranging from 63mm – 630mm. Bigger sizes available by phone or email enquiries.
*Please note* some of the more uncommon sizes may have a larger lead time.
