Langdon's Sure•Flange Spiral is a clamp or screw together flanged ductwork system that reduces installation cost. Our new (patent-pending) connection is constructed using a precision formed flange and clamp with a neoprene sponge gasket. With Sure•Flange Spiral, the formed flange on our fittings allow larger diameter ductwork to be installed with ease, this flange also provides additional reinforcement. Sure•Flange Spiral has many applications, such as HVAC systems. Langdon fabricates ductwork to SMACNA construction standards (10" Positive W.G.). Flanges are formed on 22 gauge fittings and are available in galvanized and galvanneal in even sizes from 24" to 36".
For more details click on the link below to download a copy of our Shop Drawing
