The vertical fabric duct doesn't need the steel cables; if both ends of the vertical fabric duct are connect to other fabric duct, only need the tension ring to stabilize the fabric duct. If any of the ends of the vertical fabric duct are not connect to the other duct, the tension ring need to be fastened to the building structure, like the floor, roof, post or the truss.

There are many standard ducts of the DurkeeSox fabric ventilation system. Some of them need to measure at the worksite before manufacture, meanwhile most of the standard fabric duct can manufacture according to the drawings and that amount will up to 80% to the whole amount and the delivery period also can be secured. When the plan changing, we can provide some fabric connector to do adjust and manufacture the final part after measuring. For some tiny change of the scale, we can adjust them by using special customized connectors.

flow into the fabric duct, the whole fabric duct system will be working properly.
b. Work with the air supply system with large temperature difference.
The DurkeeSox fabric duct system working without any insulation material and also provide large different temperature air

flow evenly and comfortable. For the traditional ductwork work with this kind of A/C unit need to add 32mm insulation and

frost easily.
c. Work with the central ventilation system in spring or autumn season.
The ability of condensation free ability makes the DurkeeSox fabric duct working properly with high temperature difference

indoor and outdoor.

The duct can be squeeze properly, but will reduce the aesthetic. The duct will turn to flat when the fabric ductwork squeezing, but the sectional area will be the same, so the squeezing the ducts will not have too much impact to the airflow if the squeeze height less than 50%.

If the squeeze height larger than 50%, the internal airflow will be influenced, with a high airflow velocity, the fabric duct may shaking, so we recommend to set a upturning or down turning unit to avoid the squeeze.

The principle of the greener unit or the evaporative air cooler is using the exchange of cold water and air to achieve the cool down purpose. Because these kind of A/C equipment are without the refrigerating part, so the energy cost is much lower than normal Air conditioner. But the airflow transporting and air dispersion systems are the same as the normal air conditioner, so the DurkeeSox fabric duct system can be using to replace the traditional duct and outlets.

But in particular, these kinds of air conditioner use the axial flow fan normally as the power source, within the same air volume, the ESP will be much smaller than the normal air conditioner, so the ESP needs to be particular check if the ESP achieves the requirement of the DurkeeSox fabric duct system while designing. The DurkeeSox air dispersion system will work perfectly with the greener unit or the evaporative air cooler system if the design is reasonable.

The pressure calculation of Durkeesox fabric duct system is basically as same as traditional air duct, including all calculation formula. The friction coefficient of Durkeesox system is almost the same as traditional spiral duct, only when we calculate the pressure of Durkeesox system can we ignore friction loss along the duct, what we need to do is the calculation of local resistance. For the Durkeesox system, friction loss along the duct will decrease as the air velocity inside the duct is reducing, the total friction loss along the duct is almost equivalent to static pressure regain, the difference is small

even it does exist, besides, the static pressure regain is often more than friction loss along the duct. Sometimes, we even use PAD (pressure adjust device) to balance off some dynamic pressure. In complex system, it is requested to calculate pressure loss when elbow and T-connections are available.

For a simple straight fabric duct system, the resistance inside the fabric duct is much smaller than the static pressure regain, so the resistance can be ignore. For a complicate fabric ductworks, the resistance is only 1/3 or 1/5 compare to the tradition metal ductworks. The airflow pressure are totally enough for the DurkeeSox fabric duct system while designing. Also, the fabric permeability and the orifices of the DurkeeSox fabric duct system can be modified according to the airflow pressure, in order to secure the volume of the airflow supplied and no extra requirement of the AC equipment.

The duct can be squeeze properly, but will reduce the aesthetic. The duct will turn to flat when the fabric duct squeezing,

but the sectional area will be the same, so the squeezing the ducts will not have too much impact to the airflow if the

squeeze height less than 50%.

If the squeeze height larger than 50%, the internal airflow will be influenced, with a high airflow velocity, the fabric

duct may shaking, so we recommend to set a upturning or down turning unit to avoid the squeeze.

Chillventa is one of the most important events in the world for refrigeration, air conditioning, ventilation and heat pumps, which was first organized under the name of “Chillventa” in 2008.

As regular, every time when Durkeesox takes party in an exhibition, we always try best to showcase the last innovative products.Oct.14-16, Dureesox America team has been attended the Chillventa 2014 at Nuremberg. 3 main kinds of new products has been issued. They are: URR air dispersion system, adjustable nozzle and fabric nozzle. Designed With pleasant user experience, the booth attracted many visitors into our stand. Even many stand-by stept into our stand to feel the comfortable air dispersion effect and asking for more understanding about our product.

Thanks for the magic Pad, visitors can learn our products and get the answers of 100 frequent questions themselves by playing the pad which developed by Durkeesox.

More informations:http://www.durkeesox.com/en http://www.nanosox.net