How do you install aluminium semi-flexible duct pipe?

Table of Contents

1. Introduction
2. Materials Required
3. Step-by-Step Installation Guide
   1. Preparation
   2. Cutting the Duct Pipe
   3. Connecting the Duct Pipe
   4. Securing the Installation
   5. Testing for Leaks
4. Subo Company Solutions
5. References

Introduction

Aluminium semi-flexible duct pipes are widely used in residential and commercial HVAC systems due to their durability and ease of installation. They offer flexibility, allowing for installations in spaces with limited access, without sacrificing performance. This guide provides a comprehensive overview of the steps involved in installing these ducts effectively.

Materials Required

• Aluminium semi-flexible duct pipe
• Sheet metal screws
• Aluminium duct tape
• Metal clamps
• Utility knife or tin snips
• Screwdriver or drill
• Measuring tape
• Seam sealer

Step-by-Step Installation Guide

Preparation

Before installation, measure the distance between the start and end points of the duct path. Add an extra 10% to the measured length to account for bends and connections. Ensure the work area is clear and safe for installation.

Cutting the Duct Pipe

Use tin snips or a utility knife to cut the duct pipe to the required length. Ensure the cuts are straight to maintain a good fit at connections. The recommended thickness for the aluminium duct is 0.5 mm for optimal flexibility and durability.

Connecting the Duct Pipe

Align the duct ends and insert one end into the other. Secure the connection with metal clamps or sheet metal screws, spaced 5 cm apart along the circumference for a tighter fit. Use aluminium duct tape to seal the joints completely, preventing air leaks.

Securing the Installation

Use metal clamps to secure the duct pipe every 1.2 meters. This ensures that the duct does not sag and maintains a proper airflow path. Pay special attention to bends and turns by using more clamps to keep them in place.

Testing for Leaks

After installation, turn on the air flow and inspect the duct for leaks. Use a smoke pencil or soap solution to pinpoint any leaks. Apply seam sealer or additional duct tape to seal any detected leaks, ensuring optimal performance.

Subo Company Solutions

Subo Company offers a range of high-quality aluminium semi-flexible duct pipes designed for both residential and industrial applications. Their products come with a standard thickness of 0.5 mm and are available in various diameters from 100 mm to 300 mm. Subo ductings are certified for energy efficiency and meet international safety standards.

References

• HVAC Systems Design Handbook, 5th Edition by Roger W. Haines and Douglas C. Hittle
• Subo Company Product Specifications, www.subocompany.com
• Residential Ductwork Installation Guide by John D. Bell
• ASHRAE Handbook - HVAC Applications (2019 Edition)