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.
Weather cowls made from galvanised steel that fit over spiral ducting. Weather cowls are made for terminating ducting, whilst stopping rain and vermin from getting inside the ducting run. Available in sizes ranging from 80mm – 630mm. Bigger sizes available by phone or email enquiries.
*Please note* some of the more uncommon sizes may have a larger lead time.
Long & Short Concentric Reducers made from galvanised steel. Male ends to fit inside ducting. 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.
Galvanised steel shoe to fit on ducting of a larger diameter at a 90 degree angle. Male ends to fit inside ducting. Available in sizes ranging from 80mm – 710mm. Bigger sizes available by phone or email enquiries.
*Please note* some of the more uncommon sizes may have a larger lead time.
Galvanised saddles to fit on ducting of a larger diameter at a 90-degree angle. Male ends to fit inside ducting. 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.
Galvanised steel split rings for hanging or fixing ducting. One hole on either side for screwed rod to go through. 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.
Galvanised steel suspension ring bracket for hanging or fixing ducting. Completed with a central dual fix (M10/M8) screwed rod nut on top. Available in sizes ranging from 80mm – 315mm.
*Please note* some of the more uncommon sizes may have a larger lead time.
