ECONOflange
ECONOflange shown sliding inside the outer wall of the spiral duct
Single Wall Connectors
Hemmed vs. Raw Edge:
Accuflange rings have a hem on the sleeve. This added feature is often considered beneficial on larger diameters
Longer vs. shorter inner sleeve:
Though the longer sleeve may lead many to think it serves a purpose, there is no advantage in having a longer or shorter sleeve.
Tapered vs. straight edge:
The ECONOflange has a slight taper to the edge, which several contractors contend make it easier when sliding into the ducts interior.
Contractors usually need right away…
Ironically, it’s the slide-on connectors that hold up a job’s progress simply because they are not readily available off the shelf at a supply house. Conklin began stocking the ECONOflange in 8″ thru 36″ diameters with this bottleneck in mind.
Double Wall Connectors
One of the fastest growing segments of Spiral Pipe jobs is insulated Double Wall. Dimensions of Double Wall Spiral, like Single Wall, are based on airflow. a 16″ Double Wall Spiral with 1″ insulation would have an 18″ outer wall. 16″ Double Wall Spiral with 2″ insulation would have 20″ exterior wall.
- Section of Double Wall Spiral Duct with unfaced liner insulation, 5.394″ perforated inner wall and AccuFlange double wall connection
Inner Wall: Split vs. Welded
- There is no taper on the inner sleeve of Double Wall ECONOflange, however one side is split. A split Inner Ring allows adjustment for diameter variances.
Press-On Inner Ring
Ductmate offers a Press-On Inner Ring that can be used in conjunction with standard single ECONOflange to form a double wall connection.
- Double Wall Spiral Pipe + 14″ ECONOflange and 12″ Press-On Split Inner Ring = Double Wall Connection
