Clamp Joint: Clamp joint connections use metal clamps to fasten the duct sections. The clamp is tightened around the junction to create a sealed, secure connection. Easy to install, cost-effective, and easy to detach for maintenance, making it ideal for accessible systems.Slip Joint: A slip joint involves inserting one end of a spiral duct into the end of another and sealing it with adhesive or gaskets for extra airtightness. Quick installation without complex fittings; suitable for limited-space applications; cost-effective.Angle Iron Flange Connection: This method uses angle iron flanges at each end, secured with bolts and gaskets for enhanced airtightness. Ideal for larger duct sizes and high-pressure systems. High seal integrity and durability, suitable for high-pressure settings, and easy to maintain for inspections.Design the HVAC system by evaluating airflow, spatial layout, and capacity, then measure, cut, and securely connect metal spiral ducts with airtight seals and insulation for efficient, noise-controlled operation.
