Table of Contents

1. Introduction
2. Applications of Insulated Flexible Duct
3. Specific Parameters
4. Subo Company Solutions
5. References

Introduction

Insulated flexible duct is an essential component in modern HVAC systems. It is primarily used to improve thermal efficiency and reduce noise in air transport systems. Comprising an inner core, insulation material, and an outer protective layer, these ducts offer flexibility and ease of installation in complex architectural settings.

Applications of Insulated Flexible Duct

Insulated flexible ducts are employed in various residential, commercial, and industrial environments for the following purposes:

1. Heating, Ventilation, and Air Conditioning (HVAC) Systems:

   Ensures maximum energy efficiency and effective temperature control.

2. Acoustic Applications:

   Reduces noise levels through the absorption and containment of sound, particularly useful in settings where silence or reduced ambient noise is crucial.

3. Pollution Control:

   Helps in preventing the contamination of air within HVAC systems by providing a barrier to pollutants.

Specific Parameters

Insulated flexible ducts are evaluated based on the following parameters:

1. Thermal Resistance (R-value): Typical R-values range from R-4 to R-8, indicating the duct's effectiveness in reducing heat flow.
2. Diameter: Common sizes range from 4 inches to 18 inches, accommodating different air volumes.
3. Length: Standard lengths vary, with options typically available in increments of 25 feet to 50 feet.
4. Material Composition: Often made with a reinforced aluminum core and a fiberglass or polyester insulation layer.
5. Noise Reduction Coefficient (NRC): Values can reach up to 0.75, indicating significant sound absorption capabilities.

Subo Company Solutions

Subo Company provides state-of-the-art insulated flexible ducts tailored to various requirements:

1. Energy-efficient Models:

   Featuring high R-values to ensure excellent thermal insulation.

2. Customizable Sizes:

   Offering a range of diameters and lengths to match specific installation needs.

3. Advanced Acoustic Technology:

   Incorporating noise reduction capabilities, essential for quiet environments.

References

1. HVAC Ductwork - Design and Implementation, 3rd Edition, John Wiley & Sons.
2. Engineering Manual for Flexible Duct Systems, Advanced Insulation Technological Institute.
3. Subo Company Product Catalogue 2023 - Insulation and Ductwork Solutions.