Galvanised spiral tube, spiral ducting and ductwork fittings available in a large range of sizes.
Our ductwork complies to DW144 standard, the UK recognised specification for how to manufacture and install ductwork. Spiral ducting tube is made for transporting air - supplying fresh air into buildings and extracting excess or stale air out of buildings. Spiral duct is much more effective in terms of reduced air leakage than rectangular ducting due to fewer joints because of its large 3m lengths.
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.
Spiral ducting can be used to carry air up to temperatures of around 200◦c continuously and around 250◦c intermittently. If used above recommended temperatures, discolouring and corrosion can occur. Our spiral ductwork systems are suitable for commercial, industrial and HVAC ventilation installations where strong airflow performance and reduced leakage are important. Read more
Our galvanised spiral tube is available in a wide range of diameters to suit commercial, industrial and HVAC ventilation systems. We supply spiral tube, bends, reducers, access doors and ductwork fittings from stock, helping contractors and facilities managers source complete ventilation systems from one trusted UK supplier.
We can offer advice over the phone or email. Other products not listed are also available so please enquire via email 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.
