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Polyester fabric flexible duct Texoflex Grey - diameter 127 mm

Polyester fabric flexible duct Texoflex Grey - diameter 127 mm

Product description

Texoflex Grey, diameter 127 mm. Texoflex Grey is made of a polyester fabric, both sides coated with self-extinguishing PVC, and reinforced with spiral high tension steel wire. Due to its exceptional flexibility can be easy installed on round and oval connectors. Texoflex Grey is made for low and medium pressure ventilation and aspiration. Temperature range: from -25º C to +70º C.
ID
VABJ0127AAB
EAN
8.605.008.356.627
Brand
Tehnoexport
Diameter
127 Mm
Duct length
10 meter
Duct type
Texoflex Grey

Additional specifications and description

Why use flexible ducts?

Compared to rigid ductwork, flexible ducts offer a quicker and cheaper installation process, as they do not require separate elements such as bends to change direction. The lighter weight also means they need fewer mounting points. Another benefit is that a continuous run of Texoflex Grey will have zero leaks.

Why choose Texoflex Grey?

The main advantage of Texoflex Grey is its extreme flexibility, which makes it easy to route around bends and obstacles and attach to mm round/oval connectors. 


Where is Texoflex Grey used?

Texoflex Grey is suitable for residential and industrial/commercial HVAC applications. Flexible ducts can be used both for supply and exhaust ventilation systems.


Exhaust ventilation

A typical example of flexible ducts in exhaust ventilation and the most common use case for Texoflex Grey is fume extraction from industrial processes. Another common application is transporting air pumped by an exhaust fan in a bathroom, toilet or laundry room to an outside wall grille. In these applications, the exhaust fan is located at the beginning of the duct run, avoiding creating a low-pressure zone inside the duct.


Supply ventilation

In contrast, supply ventilation (positive pressure applications) allows for longer runs. However, this does not mean that all of the standard galvanised steel and Spiro ducts can be replaced with Texoflex Grey. Flexible ducting complements rigid ductwork. For example, Texoflex Grey is very convenient for attaching air supply outlets or plenum boxes to rigid ductwork. 


Construction

Texoflex Grey is a flexible duct with a diameter of 127 mm. It is made from a layer of polyester with a thickness of 0,25 mm, coated on both sides with grey PVC. The PVC coating is self-extinguishing, which improves the safety of the product

A spiral of high-tension steel wire helps the duct maintain its shape. This structural rigidity is especially useful in cases where the flexible duct has to curve/bend, or the pressure inside is lower than outside (negative pressure). 

Installation

The 127 mm flexible duct is attached to other ventilation elements using long zip ties or metal band clamps. Aluminium tape (Alu tape) can provide additional strength if needed.


Flexible ducts might not always be the best option

The disadvantages of flexible ducts are their higher air resistance/pressure loss and noise levels compared to rigid circular/Spiro ductwork. The flexible construction of these ducts also means that they are not as well suited to negative pressure applications, and they can only tolerate a moderate amount of negative pressure. In cases where it is impossible to avoid negative pressure, the duct run should be kept short.

Further considerations

While flexible ducting is significantly easier to install than standard ducting, there are some considerations to keep in mind.

When bending the duct, it must not become kinked. Any kinks in the ductwork will negatively affect airflow. Unlike rigid ducts, which are measured and cut to the exact length, flexible ducts are often left longer than necessary. This extra length can introduce unnecessary bends and turns along the duct run. And in cases where the duct hangs from a ceiling, it will sag between the supports/mounts. All of this reduces the performance of the ventilation system. 

Shipping

Texoflex Grey is shipped in a compressed form, which makes its transportation and storage easier. Once unpacked, the duct extends to its standard length of 10 m.



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