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D100 Flexible Duct: Comprehensive Ventilation Solution From Sao Viet

In modern HVAC (heating, ventilation, and air conditioning) systems, in addition to the backbone system, there is rigid ducting (square or spiral round). D100 flexible duct They act as flexible "blood vessels," connecting airflow to every corner of a building. Whether you are the investor of a large project like Aeon Mall or Vinhomes, or a homeowner installing exhaust fans, understanding this product is extremely important.

The following article by Sao Viet Air Duct This will provide the most comprehensive overview of D100 flexible air ducts: from structure, classification, technical specifications to standard installation guidelines to optimize costs and durability.

1. What is D100 flexible duct?

D100 flexible duct Flexible Duct D100 is a type of air duct with a nominal diameter of 100mm (phi 100). Unlike rigid galvanized sheet metal air ducts, flexible ducts are expandable, bendable, and wavy, allowing for installation in confined spaces and areas with many obstacles that rigid ducts cannot access.

In Vietnamese StarsFlexible ducting with a diameter of D100 is considered an indispensable accessory in a comprehensive HVAC solution package. It is commonly used to connect from the main duct to the diffuser or directly to ceiling exhaust fans and local ventilation fans.

Basic structure

A standard D100 flexible air duct is typically composed of the following components:

  • Tube membrane: Typically made from multiple layers of aluminum foil bonded together, or canvas/fabric depending on the type. This layer serves to seal against wind and reflect heat.

  • Skeleton: It features high-tension carbon steel wire coiled inside, which helps the tube maintain its round shape and creates its characteristic elasticity.

2. Classification of the most common D100 flexible air ducts currently available.

On the market and at Sao Viet's warehouse, D100 flexible air ducts are divided into two main lines based on their insulation capabilities:

2.1. Non-insulated flexible air duct D100

This is the most basic product line, often referred to as "flexible aluminum tubing".

  • Characteristic: Consisting only of an aluminum foil layer and a spring steel wire. Lightweight and the cheapest option.

  • Application: Specifically designed for systems that do not require insulation, such as:

    • Sanitary exhaust (WC).

    • Household kitchen hood.

    • Basement ventilation system (where there are no large temperature differences that cause condensation).

    • Light dust extraction or welding fume extraction system.

2.2. Insulated Flexible Duct D100

This is an upgraded version, with an added layer of insulation material in between.

  • 3-layer structure:

    1. Inner layer: Aluminum/silver film to retain air.

    2. Middle layer: Glasswool or polyester fiber. Density typically ranges from 16 kg/m³ to 24 kg/m³.

    3. Outermost layer: Reinforced silver-coated aluminum foil to protect the cotton layer.

  • Outstanding advantages:

    • Anti-fog: Prevent duct condensation (sweating) when conveying cold air in hot, humid environments.

    • Soundproofing: The cotton layer helps to dampen noise from airflow and fan motor sounds, creating a quiet environment.

    • Conservation of energy: Reduce heat and cold loss in the ductwork.

  • Application: Mandatory use for central air conditioning systems (VRV/VRF) and chilled fresh air supply systems (PAU).

3. Detailed technical specifications of the D100 flexible air duct.

To ensure the correct type of duct is selected for the project, engineers at Sao Viet Air Ducting advise customers to pay attention to the following parameters:

Parameter Standard value Note
Diameter 100mm Suitable for D100, D98 connectors
Roll length 8m or 10m Packed tightly into a cardboard box, approximately 1 meter long.
Working temperature -30°C to +140°C Depending on the type of glue and aluminum foil
Maximum wind speed 30 m/s Recommended to use < 10m/s to reduce noise
Working pressure 2500 Pa – 3000 Pa Withstand positive and negative pressure
Bending radius 0.54 x diameter Very flexible
Fire resistance Class 0 / Class 1 Depending on the manufacturer (Sao Viet provides standard-compliant products)

(Note: The above specifications may vary depending on the specific manufacturer that Sao Viet distributes or manufactures to order).

4. Why is the D100 flexible air duct an indispensable component?

During the construction of major projects in Hai Phong such as Aeon Mall or factories in the Vsip Industrial Park, we found that flexible ducting (D100) solved difficult problems that rigid ducting could not:

  1. Correcting construction errors: In construction, the location of plaster ceilings, lights, or fire pipes often changes compared to the drawings. Flexible ducts with the ability to bend help ME engineers easily "avoid" these obstacles to connect to the air vent.

  2. Vibration reduction: When connecting the fan directly to a rigid pipe, the vibration of the motor can be transmitted over a long distance, causing noise. A piece of D100 flexible duct (usually 1-3m long) acts as a flexible joint, effectively cutting off the vibration.

  3. Low Cost & Fast Construction: The cost of soft pipes is much cheaper than having to manufacture elbows to redirect hard pipes. Installation time is only a matter of minutes.

5. Practical applications of D100 flexible air ducts

Based on practical experience gained from hundreds of construction projects, Sao Viet Air Duct A compilation of the most popular applications:

In civil & apartment

  • Ceiling exhaust fan: Most bathroom exhaust fans from Panasonic, Mitsubishi, or other popular brands have a 100mm diameter connector. A 100mm diameter flexible duct is the number one choice for venting odors to the technical shaft.

  • Kitchen hood: Allow smoke and food odors to escape outdoors.

  • Clothes dryer: Allow hot, humid air to escape through the balcony.

In Industrial & Commercial Buildings

  • HVAC system: The connection is made from the plenum box of the ducted ceiling-mounted air conditioners to the round or square diffuser vents.

  • Fresh air supply: Fresh air is channeled from heat recovery units (HRVs) into each bedroom and hotel room.

6. Why should you choose to buy flexible air ducts and accessories from Sao Viet?

Among hundreds of suppliers of refrigeration equipment, Sao Viet Air Duct Trading and Manufacturing Company Limited We are proud to be a trusted partner thanks to our distinct competitive advantages:

6.1. Leading manufacturer position

Sao Viet is not just a trading company. We own a large-scale duct manufacturing plant in... 267 Le Thanh Tong, May Chai, Hai Phong. Directly manufacturing main duct systems helps us have extensive knowledge to select and supply the best compatible and highest quality D100 flexible duct (thick, hard steel wire, not easily torn like floating goods).

6.2. Commitment to “Building a Green Future”

Pursuing a vision of a green future, the flexible air duct products supplied by Sao Viet prioritize environmentally friendly materials, free from harmful chemicals, and safe insulation, ensuring clean air quality (IAQ) for buildings.

6.3. Tailor-made service

Unlike dealers whose responsibility ends after the sale, Sao Viet provides comprehensive technical services:

  • Consulting on optimal fresh air supply/exhaust air solutions.

  • Provide on-site measurement support to reduce material waste.

  • Express delivery available in Hai Phong, Quang Ninh, and other northern provinces.

6.4. Reputable company profile

The trust of major partners through projects such as Aeon Hai Phong, Vinhome Ha Long, Bar Le Hong Phong…is the clearest evidence of the quality of our products and services. When you buy a D100 flexible duct roll from Sao Viet, you are buying the quality standards of 5-star construction projects.

7. Technical guide for installing D100 flexible air ducts (Avoid water accumulation issues)

Many careless installers often make mistakes when installing flexible pipes, leading to sagging, water accumulation, or tearing. Sao Viet technicians would like to share the standard procedure:

Step 1: Prepare tools

  • Flexible air duct D100 (with or without insulation).

  • Stainless steel cable ties (hose clamps) size 100-120mm or large plastic cable ties.

  • Specialized aluminum tape.

  • Wire cutters, box cutter.

Step 2: Measure and cut

  • Stretch the flexible air duct to its fullest extent to measure its exact length.

  • Important note: The hose should not be allowed to sag too much. The optimal length of the flexible hose is < 3 metersIf the distance is greater, use rigid tubing (corrugated or PVC pipe) for conduit, using only flexible tubing at the connection point. Excessively long flexible tubing will significantly reduce the fan's suction pressure (large pressure loss).

Step 3: Connect to the fan/rigid duct.

  • Insert the flexible ducting into the connector (Spigot) at least 5cm deep.

  • Use a stainless steel cable tie to tighten it securely.

  • Wrap at least two layers of silver electrical tape over the joint to ensure a completely airtight seal (to prevent cold air leakage and condensation at the joint).

Step 4: Provide support

  • Standard: There must be a pipe support bracket every 1.5m – 2m.

  • Use metal or canvas straps for hanging. Avoid using thin steel wire to tie directly, as this can crush the pipe or tear the insulation.

  • Ensure the ducting is not bent too sharply (the bends should be gentle) to allow for good airflow.

8. Common mistakes when buying and using

During the warranty and customer support process, we have noted the following common issues:

  1. Wrong type: Using uninsulated pipes for air conditioning -> Causes water to leak and wet the plaster ceiling, damaging the ceiling.

  2. Bought "missing meter" goods: Many types of pipes are listed as 10m/roll but in reality they can only be stretched to 6-7m. At Sao Viet, we commit to transparent specifications.

  3. Tube too thin: Weak steel wire makes the tube easily crushed when the fan is strong, blocking the air flow.

  4. Not checking the cotton layer carefully (with insulated pipes): The cotton is shifted and uneven, creating thermal bridges that cause localized water condensation.

9. Quotation for D100 flexible duct

The price of D100 flexible duct depends on the fluctuation of world prices of aluminum, steel and insulation cotton. However, Sao Viet always strives to stabilize prices to support contractors.

Reference price (subject to change):

  • D100 uninsulated flexible duct: Price ranges from 1XX,000 VND / 10m roll.

  • D100 flexible air duct with insulation (Glass wool): Fluctuates from 2XX,000 - 3XX,000 VND / roll of 8-10m.

To receive the most accurate quote and discounts for large orders (for projects), please contact us directly.

10. Conclusion

D100 flexible duct Although it is an auxiliary material, it directly determines the performance, noise level and lifespan of the entire ventilation system. Choosing quality products from reputable suppliers such as Vietnamese Stars will help you eliminate the risk of damage and water leakage after the ceiling is sealed.

With extensive experience in production and construction, and a modern factory system in Hai Phong, Sao Viet Air Duct Committed to providing the most optimal technical and cost solutions for your project.

CONTACT INFORMATION – SAO VIET AIR DUCT MANUFACTURING AND TRADING COMPANY LIMITED

  • Factory address: 267 Le Thanh Tong, May Chai, Ngo Quyen, Hai Phong

  • Hotline/Zalo:

    • Mrs. Hang: 0815.999.826

    • Mrs. Giang: 0934.559.168

    • Mrs. Linh: 0949.852.886

      • Tel: 0985.239.838

  • E-mail: vietonggio@gmail.com / dieuhoasaoviet@gmail.com

  • Website: onggiosaoviet.vn - dieuhoasaoviet.vn

Let Sao Viet Air Ducts be your partner in creating healthy and safe living spaces!

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