Spiral ducting is a type of ducting used in many ventilation and HVAC systems. Unlike conventionally fabricated round ducts, spiral ducting is formed into a continuous spiral shape from a strip of material.
For contractors, the selection of spiral pipes should be based on the diameter, thickness, design flow rate, suspension method, and aesthetic requirements of each project.
1. What is a Spiral Duct?
Spiral tubes are round in shape and are formed by twisting material into a tube.
The distinctive structure creates a continuous spiral pattern along the tube's body.
Sao Viet Air Ducting currently offers spiral round ducts with diameters ranging from D100–D800 mm.
2. Advantages of Spiral Tubes
| Characteristic | Value to the project |
| Circular cross-section | Compatible with many systems |
| Continuous spiral | Create characteristic structures |
| Multiple diameters | Easy to choose |
| External inspection | Suitable for open-air routes |
| Machine production | Increase uniformity |
3. Which type of construction is suitable?
Spiral tubes can be considered in:
- Factory.
- Commercial area.
- Restaurant.
- Service space.
- Industrial ventilation systems.
- The pipeline requires an aesthetic design.
4. Key specifications to finalize when placing an order.
The contractor needs to provide:
- Diameter.
- Thickness.
- Length.
- Material.
- Type of link.
- Accessory.
- Quantity.
- The request is complete.
5. Spiral tubes are not always a replacement for rectangular tubes.
The HVAC design must remain as approved in the documentation.
The following considerations should be taken into account when changing from rectangular to round pipes:
- Equivalent cross-section.
- Space.
- Pressure loss.
- Accessory.
- Hanging rack.
- Connectivity.
Conclusion
Spiral tubing is a viable option for projects requiring circular pipelines. However, the final decision should ultimately be based on design and technical requirements.
Sao Viet Air Duct It has the capability to fabricate various types of air ducts, giving contractors more options when implementing HVAC systems.
SAO VIET AIR DUCT TRADING AND MANUFACTURING COMPANY LIMITED
- Address: 267 Le Thanh Tong, May Chai, Ngo Quyen, Hai Phong
- Hotline: 0815.999.826 – 0934.559.168
- E-mail: vietonggio@gmail.com
Sao Viet Air Duct We undertake fabrication and supply of ductwork and HVAC accessories according to project drawings and technical requirements. M&E/Fire Protection contractors can submit their orders. drawings, BOQ, or technical specifications To receive advice on suitable options and a price quote.
