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THE recent release of the FlatPack Low Profile duct rounds-off a range of products and systems by Fantech that are specifically and ideally suited to applications where ceiling space is restricted.

“We have been developing and supplying products such as the Smooth Flow Backdraft Damper, TD Mixvent fans, Fantech Jetstream Systems and Ezifit In-Wall fans for some time now,” said Paul de Bruin, Fantech’s Marketing Director. “While these products have been engineered to give the best possible airflow performance, consultants and contractors have consistently demanded more performance out of exhaust systems in high rise apartments and the like. Supplying low profile duct was the obvious next step.” The FlatPack Low Profile Duct System, which includes the unique LayFlat collapsible duct, offers many advantages over alternative methods of ducting air across areas with tight, restricted space. These include:

Low Profile Design
With a profile of only 204 x 60mm, the FlatPack Low Profile Duct System allows designers to maximise the ceiling height. When compared to other methods used for ducting air such as Ø150mm flexible duct or storm water pipe (to reduce pressure drop), the FlatPack duct can save around 90mm in height which, over a multi-story building, could result in substantial savings.

Smooth PVC Construction
The smooth construction and tight fitting components ensure that the duct system pressure drop and air leakage is kept to a minimum. Obviously, the less resistance imposed on a fan, the greater the resultant airflow. All FlatPack Low Profile Duct System components are made from self-extinguishing PVC.

Modular, snap-together design
The FlatPack Low Profile Duct System has components to suit virtually every situation including rigid and flexible bends, duct connectors, rectangular to circular adaptors, T-pieces and reducers. A full list of components is shown in a brochure that is available upon request or by completing the form on the back page of Tech Talk. These components are all designed to snap together and require a minimum of duct tape to make the joints air tight.

Fig. 1- how the LayFlat duct, left,compares to the rigid duct

Fig. 2 - The LayFlat duct comes from in a conveinient for thats saves space and transport costs.

Fig 3. - Height comparison between the FlatPack low profile duct, left and 150mm circular duct

Fig. 4 - the system has components to suit every situation including rigid and flexible bends, connectors, adapters, T-peices and reducers.

Fixing the duct systems in position is easily done by fixing the channel clip to the slab and clicking the duct in place. The modular design has the added benefit that it allows predictable pressure drop results unlike flexible duct, which can be crushed or damaged after installation resulting in reduced airflow. Components have been tested for pressure resistance and the results are shown in the brochure.

Convenient Storage and Transport
The LayFlat collapsible duct provides huge advantages for storage and transport on-site. Figure 1 shows 10 lengths of the LayFlat duct and 10 lengths of the rigid duct. For a project that requires hundreds of lengths of duct, this amount of space saving will result in much less time and effort required to transport the duct up the building. “The FlatPack Low Profile Duct System is helping our customers to improve the performance of their exhaust systems, while at the same time making it easier for them to install and handle on-site,” said Paul de Bruin.

FlatPack Low Profile Duct System components are available in Australia and New Zealand through Fantech’s network of office and agents.