SPIRAL REINFORCED DUCTING
This ducting is manufactured with spring steel wire welded to the ducting using a special extruded PVC profile with wear protection. The spiral ducting is used with negative and positive pressures.
- Tube diameters vary from 300mm to 3000mm (12 inches to 120 inches).
- Standard lengths: 7.5m (25ft)
- Custom lengths available
- Standard pitch: 150mm & 100mm (6 inch & 4 inch)
- The ventilation duct/tubing is certified by Natural Resources Canada under Certification # 1181. The ducting/tubing also conforms to CAN/CSA-M427-M91.
Atkinson Equation for Vent Duct Losses @ 0.075. Use the Excel spreadsheet to make your calculations.