Bestsellers
Fusible Links
We offer a large range of replacement fusible links which can be used in different ways in dampers, doors and vents. All common fusible links are in stock and for sale on this page. Please enquire for other types if you cannot find them on our website, as we can offer higher temperatures.
- Found in systems such as fire doors, fire dampers and sprinkler systems.
- A metal link engineered to melt at a certain temperature, releasing a latch, closing a door or activating a sprinkler.
Common fire damper makes these are used on include BSB, HVC, NCA, Advanced Air, Action Air, Swegon, Chubb Fire, Flaktwoods, A1 Shutters, Lindab Fire Dampers, Wolseley UK, Fel Valves, Ascot Doors, Kidde Thorne, Dayton 2TGJ3 and Gilberts.
Replacement Fire Damper Springs x2
Fire damper springs, also known as constant force springs, are essential components used on both sides of a curtain fire damper. They ensure the damper opens and closes correctly in the event of smoke or fire, helping to contain hazards within the ductwork.
Sold in pairs, as we recommend replacing both springs at the same time for balanced performance and safety compliance.
Spiral Ducting Tube 1.5m
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.
- Available in diameters from 63mm to 710mm
- Larger sizes available on request by phone or email
- 3 metre lengths available for in store pickup
Please note: some uncommon sizes may have extended lead times.
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.
Why Choose Alphatube?
UK Spiral Ducting, Fire Dampers & Ventilation Products
Alphatube is a leading UK supplier of spiral ducting and ductwork fittings, supplying contractors, facilities management companies and businesses throughout the UK. Our extensive product range includes spiral tube, bends, reducers, branch pieces, access doors and ventilation accessories designed for commercial, industrial and residential ventilation systems.
We stock a comprehensive range of fire dampers and control dampers to help customers meet fire safety requirements while maintaining efficient airflow throughout their ventilation systems. Whether you require fusible link fire dampers, airflow control products or specialist ventilation components, our experienced team can help you select the right solution.
Alongside our ductwork range, we supply high quality ventilation filters, flexible ducting, grilles, louvres and air distribution products suitable for a wide variety of applications. Our products are used in offices, warehouses, factories, schools, retail premises and commercial buildings across the UK.
For specialist projects, we also offer stainless steel ducting, installation hardware and fixings and support components to help complete professional ventilation installations. With extensive stock, competitive pricing and fast nationwide delivery, Alphatube is trusted by customers throughout the UK for reliable ventilation and ductwork supplies.
Browse our complete range of ventilation products online or contact our team for expert advice, technical assistance and competitive quotations for your next project.
Our product range also includes flexible ducting, air terminals, grilles and louvres, stainless spiral tube and BSB dampers, helping customers source complete ventilation systems from a single trusted UK supplier.