" " Forever Clamp- KB Duct - CECO Environmental


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Forever Clamp

The heart of our clamp-together ducting system is our unique KB Duct Forever Clamp. This is the easiest-to-install and most efficient quick clamp joining method ever developed for lighter weight systems. When joining ducting parts just as elbows, sleeves, branches, cutoffs or almost any related part, nothing works as well as KB Duct’s Forever Clamp.

KB Duct’s patented Forever Clamp is guaranteed never to tear, twist or fail to perform for the life of your ducting system.

As needed or requested, other gasket and O-ring materials can be supplied: 

  • RED SILICONE: Used primarily on high heat applications
  • FDA (white rubber): Food Grade
  • VITON: Oil Mist
  • GORE-TEX: Used in some oil mist applications

All of the above can be supplied as clamp gasket or for the adjustable sleeve/fittings, however, when needed for the latter, they do not come as a complete O-ring but as a piece of cord. They can still be used as the O-ring but they must be fitted under the clamp.



  • Low Total Cost of Ownership
  • High reliability with custom manufactured designs to fit your application needs



  • Material integrity – Premium quality materials for even the most abrasive applications


KB Duct Forever Clamp

KB Duct creates high caliber ducting systems to fit every need, providing unique flexibility and attention to detail. We customize special products for your individual application: If you can sketch it, we can produce it! With our free 3D design service, we can change your rough vision into a fully developed representation of a duct solution that we then produce and bring to your facility. We proudly provide the most expedient delivery in the industry. When you need the right system, right away, turn to KB Duct. 

KB Duct matches the care and passion that you put into your company when we build the right equipment for your needs.  We manufacture the largest selection of ducting components and application-specific duct solutions for dust and air handling you will find. Whether you are across town or across the country, we can build, deliver, and install a system that’s just right for you. Our customer loyalty doesn’t end at production. Even after installation, KB Duct will be there whenever you need us to handle your concerns and let you rest easy. We are equally devoted to our systems and to the people who use them. Trust KB Duct.