Flexible Duct Pipes — Premium PVC & Insulated Duct Pipe for Ventilation
Intro Paragraph
Looking for a reliable flexible duct pipe for your ventilation system? Astberg Ventilation offers a premium range of flexible duct pipes designed for HVAC installations, kitchen exhaust setups, grow rooms, dryers, and industrial applications. Built from high-grade PVC and aluminium, our duct pipes deliver superior airflow, prevent light leaks, and withstand continuous operation — all at competitive prices with pan-India delivery.
What is a Duct Pipe?
A duct pipe is a tube or channel used to direct and transport air from one place to another within a ventilation or HVAC (Heating, Ventilation, and Air Conditioning) system. A flexible duct pipe uses a bendable, expandable construction — typically PVC or aluminium with a steel wire coil — so it can be routed around tight corners, joists, and equipment where a rigid duct pipe won't fit.
Why Choose Astberg Flexible Duct Pipes?
- Durable double-wall PVC construction with steel wire reinforcement
- Available in multiple diameters (100mm, 125mm, 150mm, 200mm, 250mm, 315mm+)
- Compatible with inline fans, exhaust fans, and HRV/ERV systems
- Flexible duct design for easy installation around bends and tight spaces
- Prevents light leaks — ideal for grow rooms and controlled environments
- Tested duct pipes for HVAC, kitchen chimney, bathroom exhaust & industrial use
Types of Duct Pipes Available
- Residential HVAC & fresh air systems
- Kitchen exhaust and chimney connections
- Bathroom & toilet exhaust ventilation
- Grow tent and grow room ventilation (flexible duct)
- Industrial and commercial air ducting
- Server room cooling setups
How to Choose the Right Flexible Duct Pipe
Selecting the correct duct pipe depends on three main factors: diameter, length, and material. For standard residential ventilation, a 100mm or 150mm flexible duct pipe is recommended. For high-volume commercial or industrial airflow, consider 200mm or larger aluminium duct pipes with more rigid construction. Always match the duct pipe diameter to your inline fan or exhaust fan outlet for optimal performance.
FAQ Section
Q1. What is a duct pipe used for?
A duct pipe is used to channel air from one location to another in a ventilation system. It connects exhaust fans, inline fans, and air handling units to outlets, vents, or the outside atmosphere. Duct pipes are essential in HVAC setups, kitchen chimneys, bathroom exhausts, grow rooms, and industrial air management systems.
Q2. What is a flexible duct used for?
A flexible duct is used wherever airflow needs to be routed around obstacles, tight corners, or uneven spaces — such as ceiling voids, wall cavities, or grow tents. Unlike rigid ducting, a flexible duct pipe bends and compresses to fit installation constraints while maintaining airflow efficiency.
Q3. What sizes of duct pipes are available at Astberg?
Astberg offers duct pipes in standard diameters including 100mm, 125mm, 150mm, 200mm, 250mm, and 315mm. Custom sizing may be available for industrial or commercial orders. Always match the duct pipe diameter to the fan or unit outlet for efficient airflow.
Q4. Are Astberg duct pipes flexible or rigid?
Astberg offers flexible duct pipes made from double-wall PVC with steel wire reinforcement for durability and shape retention, ideal for curved or tight installations, alongside more structured duct options for straight commercial runs.
Q5. What's the difference between a flexible duct and a rigid duct pipe?
A flexible duct pipe bends and compresses to route around obstacles and tight spaces, making installation faster and easier. A rigid duct pipe holds a fixed shape and is generally used for long, straight commercial or industrial runs where maximum airflow efficiency and minimal turbulence matter most.
Q6. Can I use a flexible duct for a grow room?
Yes. Astberg's flexible duct pipes are designed specifically for grow room and grow tent applications. The thick grey PVC layer prevents light leaks, which is critical for light-sensitive growing environments.
Q7. Do Astberg duct pipes come with free shipping?
Yes, Astberg offers free shipping on orders over ₹5,000 across India, with delivery within 5 working days to most locations.
