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Texoflex Black Combi uninsulated flexible duct - diameter 127 mm

Texoflex Black Combi uninsulated flexible duct - diameter 127 mm

Product description

Texoflex Black Combi is a lightweight, flexible non-insulated air duct with a diameter of 127 mm. It comprises a layer of aluminium, laminated on both sides with polyester, and covered on the outside with a tear-resistant PVC layer embossed in black. A patented steel spiral is inserted between the layers to provide structural rigidity. Thanks to its exceptional flexibility, the duct fits easily on round and oval connectors. Texoflex Black Combi has a very wide operating temperature range from -30º C to +140º C and is suitable for low and medium-pressure ventilation systems for home and industrial/commercial use.
ID
VABH0127AAB
EAN
8.605.008.393.189
Brand
Tehnoexport
Diameter
127 Mm
Duct length
10 meter
Duct type
Texoflex Black Combi

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 Black Combi will have zero leaks.

Why choose Texoflex Combi?
The main advantage of “Texoflex Black Combi C11B” is its excellent flexibility. It can bend in a tight radius and can compress and stretch. Thanks to this Texoflex Combi is easy to route around bends and obstacles and attach to round/oval connectors.

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

Exhaust ventilation
Texoflex Combi is suitable for many kinds of exhaust ventilation applications, including kitchen fume extraction and 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 rather than at the end. This configuration avoids 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 standard galvanised steel and Spiro ducts should be replaced with Texoflex Black Combi. Flexible ducting complements rigid ductwork. For example, Combi is very convenient for attaching air supply outlets or plenum boxes to rigid ductwork.

Construction
Texoflex Black Combi comprises a 7 μm layer of aluminium, two layers of polyester with a thickness of 12 μm, and an outer layer of PVC with a thickness of 90 μm for additional protection. A spiral of high-tension steel wire inserted between the layers helps the duct maintain its shape.

Installation
The 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 considerably 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 Black Combi 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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