Ducting: More than Meets the Eye


Ducting offered from Celina Industries has so many available applications that it can be difficult to imagine one that wouldn’t fit your needs. While Celina Industries manufactures a large amount of ducting for industrial applications, as well as military and aerospace businesses, there is also a wide variety of other ducting applications that you may be surprised about.

The Ducting process is one that is fairly simple. To begin, Ducting is created by running a strip of material in a spiral, fastening together the sides that overlap and then adding a finish to either end. Details differ from product to product and use to use because not every manufacturing method works the same out in the field.  

Customized Ducting to Fit Your Every Need

As you know, Ducting is typically used to move air in order to ensure acceptable indoor air quality as well as thermal comfort. But with the rising trend of exposed ceiling space (common in new minimalist restaurants and such) the option to actually decorate the ducting itself has not yet been well explored. Working in an office environment? Ducting has the ability to offer more marketing to potential customers. The ducts can have your company logo, department information, or even just pleasing designs added to spruce up your unused space.

But what if you could use your duct for multiple purposes? Believe it or not, the same process and many similar materials are used to create yet another popular Celina product, Dog Agility Tunnels. Often used in training for Canine Agility Events, ducting created for training is made with reinforcement and lengths comparable to competition standards.

And dogs aren’t even the last animals to use ducting – what about calves? That’s right, as many farmers can tell you, the health and livelihood of many young animals is dependent on the conditions they are raised in. With the help of our on-staff Positive Pressure Tube Ventilation (PPTV) Certified Specialist, we can custom-design ventilation ducting that will bring the maximum benefit to you and your livestock. Air spread, direction, tubing diameter, and number and orientation of the ducts can all be changed to meet your needs.

Not Your Average Ducting Setup

We still create the product that comes to mind at that first mention of “Ducting.” Wire-reinforced or no, we can make spiral ducting from a vast array of materials or construction methods that give the ducts all sorts of properties.

Chem/Bio Materials

Mainly used for hospital and military applications, we’ve been able to adapt chem/bio materials – that is, fabrics that have a natural resistance to chemical and biological particles – to the ducting process. These ducts can be incorporated into entirely self-contained systems where the threat of contamination is a high priority.

Wire Reinforcement

The addition of wire reinforcement gives you a spiral of metal that keeps the tube from caving in on itself, and holds the duct open regardless of internal air pressure. The wire is incorporated into the ducting during the fabrication process; whether sewn or sealed, the two overlapping layers of material wrap around the wire for fully-internalized support. Reinforcement, usually in the form of a thick strip of wear-resistant material, can be added to the exterior for applications where duct movement or heavy use is expected.

Sewn Construction

Utilizing a two-needle sewing machine, a sewn duct is slightly faster and easier to create. The obvious drawback is the multitude of holes created by the sewing process – not great if you’re looking for an air-tight duct!

Heat-Sealed Construction

Great for containment, hot-air sealing creates bonds between the layers that completely seal off the interior of the duct, and also creates seams that are, in most cases, even stronger and more resistant to wear or ripping than the material it’s made out of. This process can only be used on thermoplastic materials that can be melted together, of course.

Ducting Finishing Styles

We haven’t even touched on the finishing styles yet! Each end of the duct requires a finish to complete it, and we offer multiple styles of connectors or plain ends that fit any pre-existing application you may need:

  • Belt Cuff - a strip of fabric is incorporated into the cuff, equipped with an alligator clip fastener
  • Soft Cuff - a fabric extension is added to the end without support wire
  • Velcro Cuff - Loop is sewn around the cuff of one duct end, with a hook flap attached to the connecting end of the next duct; the hook flap wraps around the loop end (hook = air entry end)
  • Screw Clamp Cuff - a built in steel band with a screw clamp for easy tightening
  • Zipper Cuff - corresponding sides of a zipper are sewn to the ends of the ducting; intended to connect
  • Wire Rope Coupling - ends of the ducting have a wire ring incorporated into the fabric, which is inserted into a ducting end with the same finish – coupling assemblies are used to secure the two rings together

We know that was a lot of information to take in, but thank you for sticking with us this far into our topic – with so much to cover, it’s hard to keep it all in one blog entry! Contact us for ordering on any ducting products you are interested in – or visit the pages below for easy ordering of the various ducting styles.


Standard Ventilation Ducting

Dog Agility Tunnels

General Ducting Information