Fabrication of Pre-Insulated Air Ducts

Optimizing your HVAC system starts with properly installing pre-insulated air ducts. This guide will take you through the essential steps for installing PIR/PU/Phenolic duct panels, ensuring your HVAC ductwork is set up for peak performance.

Why is Proper Pre-Insulated Air Ducts Installation Important?

Have you ever thought about the impact of your HVAC ductwork system? Properly installed pre-insulated air ducts ensure efficient airflow, reduce energy costs, and maintain consistent temperatures throughout the building.

Step 1: Tracing the Pre-Insulated Duct Panel

The tracing of the duct outline onto the rigid PIR duct panel is the first step of the process. Accurate tracing ensures that your HVAC ductwork will fit perfectly within the designated spaces. Use a marker and a straightedge to draw precise lines based on your design plans.

Step 2: Cutting the PID Duct Panel

This operation involves cutting 45°cuts along each edge of the duct. The "V' grooves made by the 45" jack Plane enable the air duct panel to be folded into shape. The 'V" groove is also optimal for the subsequent gluing operation as it provides maximum bonded surface area. The material that is discarded as a result of this operation must have been accounted for during the previous tracing.

Step 3: Gluing the Pieces Together

Apply HVAC-grade adhesive along the edges where the pre-insulated duct panels will join. This step is crucial for ensuring a strong bond between the elements. Press the pieces together firmly and hold them in place until the glue sets.

Step 4: Folding the Pre-Insulated Duct Panel

For rectangular ducts, fold along the pre-scored lines to form the desired shape. Ensure the folds are crisp and accurate, which will help in maintaining the HVAC duct's structural integrity and smooth airflow.

Step 5: Taping the Joints

Taping the joints with aluminum self-adhesive tape ensures there are no air leaks at the seams. This step is essential for maintaining the efficiency of your HVAC ductwork. Ensure all joints are tightly sealed to prevent air escape.

Step 6: Flanging and Reinforcing the Pre-insulated Air Ducts

Flanging involves bending the edges of the duct sections outward to create a flange, which can then be screwed or riveted together. Reinforcement, such as adding metal strips or brackets, ensures the ducts remain securely connected and maintain their shape under pressure.

Step 7: Sealing

Sealing the PIR air ducts with sealant at all joints and connections prevents air leaks and improves system efficiency. Proper sealing is crucial to ensure the longevity and performance of your HVAC duct system.

By following these steps, you can achieve a successful installation of HVAC air ducts that enhances the building’s HVAC efficiency. Proper installation not only improves airflow and comfort but also reduces energy costs. Have any questions or need professional assistance? Our team of experts is here to help you ensure your HVAC ductwork is installed correctly and efficiently.