QF Ducting Benefits Over Spiral Or Flanged Ducting

Across the globe, thousands of manufacturers replace standard flanged ducting with Nordfab Quick-Fit (QF®) clamp-together ducting. The primary reasons they cite for upgrading their systems to QF ducting are:

Quickly change a complex system
Change your system quickly, no matter how complex

  • QF installs in about half the time of flanged ducting, reducing downtime for installation, floor plan changes and maintenance.
  • QF allows manufacturers to make changes to their ducting systems quickly, often using their regular plant maintenance workers.
  • Clogs are no problem with QF. First, the smooth interior and laser-welded seams reduce snags. Also, because all parts clamp-together, no point in the system is more than five feet from a tool-free access point.
  • In abrasive applications, wear-points can be replaced in seconds, without tools. If these changes are above the ground, they can typically be done with a man-lift rather than a crane.


Many manufacturing facilities that make the switch to QF NEVER go back to using spiral or flanged ducting for dust, mist, smoke and fume collection.

Making the switch to QF is fast and easy.

Angle flange adapter In-Cuts and Tap-Ins

  • We make flange and machine adapters that will attach to any dust collector or machine. Simply provide us with the outer and inner diameters and any bolt-hole patterns and we will provide an adapter.
  • If you are attaching to the end of a duct run, we can provide an adapter that will mount to your existing ductwork. If you need to connect to a flange, simply provide us the outer and inner diameters and a bolt hole pattern. If no flange is involved, we can provide an adapter that can be tec screwed, riveted or welded to your existing duct.
  • If you need to connect QF to any point along an existing duct run, supply us with diameter of the existing duct as well as the size of the QF duct you want to connect and we can provide an in-cut or boot. To attach this part, cut an oval hole in your existing ductwork the size of the hole in the in-cut we provide. Place a bead of caulk around the hole for better sealing, and screw, weld, rivet or strap the in-cut into place.


Once you make the first connection, you will never go back to standard spiral or flange ducting.