Spiral ducts and fittings
Spiral ducts and fittings
Spiral pipe 90° bend
Spiral pipe short 90° bend
Spiral pipe 60° bend
Spiral pipe 45° bend
Spiral pipe short 45° bend
Spiral pipe 30° bend
Spiral pipe 15° bend
Spiral pipe T-piece 90°
Spiral pipe T-piece 45°
Spiral pipe Y-piece 45°
Spiral pipe Adapter
Spiral pipe male coupler
Spiral pipe female coupler
Spiral pipe 90° flat tap
Spiral pipe lid
Spiral pipe 90° saddles
Spiral pipe manual control valve
Spiral pipe motor operated control valve
Spiral pipe check valve with rubber seal
Spiral pipe check valve without rubber seal
Spiral pipe storm collars
Spiral pipe rain hat with gauze
Spiral pipe grilles
Spiral pipe extended sliding joint
Extended sliding joint with gasket
Roof terminal slab
Aluminium roof brackets spiral pipe
Brackets for spiral pipe
Brackets with rubber for ventilation pipes
Galvanised spiral ducts and all necessary fittings
A spiral duct is used for the supply of fresh air and to extract polluted, humid air. Spiral ducting is the most frequently used metal ducting and is available in various sizes to fit all ventilation systems. Spiral ducts are made durable due to the use of galvanised metal. The fittings are all made with SAFE rubber connection, ensuring high airtightness. This also makes it so that you don't have to use other fixing materials or brackets to fit the ducts and fittings to each other.
What is a spiral duct?
A spiral duct is also called a spiral tube and can be used in a wide range of applications (schools, offices, hospitals, warehouses and homes, etc.) within a ventilation system to transport air. This may be necessary, for example, to supply clean air or to remove polluted air. A spiral duct can also be used to transport air from an air handling unit, or to direct air to an extractor fan or other exhaust unit. Furthermore, spiropipes are suitable for mechanical ventilation systems, heat exchangers, air conditioning and air heating systems. These products have a duct end connection (a plug-in connector fits into this).
What is a spiral duct made of?
The spiral ducts you can buy from Ventilationland are made of galvanised steel. This material is very sturdy and resistant to the high pressure with which air is transported through the tube. Our spiral ducts also have surface protection, as they are galvanised.
What is the diameter of a spiral duct?
The diameter of a spiral duct is expressed in millimetres (mm) and can vary. It depends on the specific application and the amount of air to be transported. Some spiral ducts have a slightly smaller diameter and are intended for small systems, while spiral ducts with a larger diameter are suitable for use in larger systems. Our range of spiral ducts includes products with diameters of 80, 100, 125, 150, 160, 180, 200, 250 and 315 mm. There is also a difference in the displaceable air of these products. The wider the diameter, the more air can be transported through the tube. For each spiro tube, you can see how much this is at 3m/s and 5m/s (number of metres per second). When buying fittings, also make sure you choose the right diameter to fit the spiro tube!
Which accessories and fittings can I use with a spiral duct?
There are several possibilities here. Among other things, it has to do with how the ventilation duct runs that is being laid and its overall length. For example, you can use spiral bends or T-pieces in different degree bundles, such as 30°, 45° or 90°. You can also choose reducers or a manual control valve. There are also plenty of options for sealing a spiral tube, such as a tube grille, a rain hat or covers (end pieces). You often need a bracket (with rubber) to connect fittings to a spirotube. This keeps everything firmly in place.
How do I install a ventilation system with a spiral duct?
Spiral ducts are suitable both for installing ventilation systems in homes and for installing extensive ventilation systems in large buildings such as offices, schools, nurseries and hospitals. You can connect the spiral pipes with each other using the various auxiliary and connecting pieces. Want to know how to easily install a spiral duct yourself? Then view our information page 'Installation (spiro)tubes and installation tips' or the instruction video 'How do I install a spiro tube?
Can a spirotube withstand heat?
That depends on the material and the way the spiro tube is made. Our steel pipes are heat-resistant. The various fittings can also be connected airtight. Aluminium and plastic spiral ducts are less resistant to higher temperatures
Extra long or insulated spiral ducts
We offer spiral pipes as standard with a length of 1 or 1.5 metres, so we can guarantee a quick and cheap delivery! In our range, you will also find the high-quality thermoduct insulated ventilation ducts. These ducts fit any heat recovery system and meet the most stringent noise and condensation requirements. The insulated cell structure prevents condensation due to low temperatures.
Which spiral pipe bend do I need?
It is worth mentioning that there is a difference not only between the number of degrees of the various spiral pipe bends, but also between the length. For example, there are spiro bends in 90° that are divided into a regular bend or a short bend. With short bends, there is less space between the two ends, while the angle remains the same. Which bend you need depends mainly on the size of the room, to what extent branches or bends are actually needed and, of course, how the ventilation system runs. Are you going to install a ventilation system that requires spiral ducts and accessories? Then we will be happy to advise you on purchasing the right products and on installation/use.