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.

SKU: Alph46

Fusible Links

£0.00 ex VAT

Fusible Links

Alpha Tube is one of the UK's leading suppliers of fusible links for fire damper systems, supplying contractors, manufacturers, HVAC engineers, and ventilation companies throughout the UK. We stock a large range of fusible links ready for fast nationwide delivery and pride ourselves on competitive pricing and dependable service. If you find a better like for like price, we will always do our best to beat it.

Our Fusible Links are designed for use within fire damper systems to provide reliable temperature activated fire protection within commercial and industrial ventilation installations.

Fusible links are a critical component in fire damper assemblies, engineered to release and activate the damper mechanism when exposed to high temperatures. This helps prevent the spread of fire and smoke through ductwork systems and supports overall building fire safety performance.

Compatible / other products include Single Blade Fire Dampers, Multi Blade Dampers, Round Access Doors, Flat Access Doors, Rectangle Access Doors, and Heat Resistant Silicon Sealant HT30.

Suitable for commercial HVAC systems, industrial ventilation systems, public buildings, warehouses, and fire rated ductwork installations, these fusible links provide dependable activation performance and reliable long term operation within fire damper systems.

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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.

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Round Access Doors

Curved access doors to suit circular ductwork. Used to access the insides of the ducting to reset fire dampers or to clean.
A sandwich type effect that clamps the opening with a gasket seal by wheel knobs.
Self adhesive template included.
Size: 250x150 - for all door's
Size: 400x300 - for 560 dia Big

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Flat Access Doors

Square and rectangular insulated, tabbed and sealed access doors for flat surfaced ducting. Used for resetting fire dampers and cleaning ductwork. Other sizes available please enquire.

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Action Air Cassette Retrofit Kit 72c

Replacement Action Air Fusible Link 72°C for compatible Actionair FireShield curtain fire dampers.

This replacement link kit includes a new bracket to connect to the existing damper along with a new linkage assembly for retrofit and maintenance applications.

The new cassette is retrofittable to existing FireShield dampers using the optional adaptor bracket (Part Number: CNNN01981).

Suitable for Actionair FireShield curtain fire dampers
72°C replacement fusible link assembly
Includes replacement linkage and fixing bracket
Instructions included inside the package

Please note: this product will be discontinued once current stock has sold out.

£54.41 ex VAT