In an HVAC system, the shape of the duct cross-section is not something that can be chosen arbitrarily. Square, rectangular, and round ducts all have their own advantages, suitable for different site conditions and design requirements.
For M&E contractors, choosing the right type of pipe from the start can help optimize space, facilitate construction, and minimize unforeseen changes.
1. What types of spaces are square/rectangular ductwork suitable for?
Square or rectangular air ducts are commonly used in buildings with technical ceiling systems or spaces where height optimization is required.
Common applications include:
- Office building.
- Apartment.
- Hotel.
- Shopping mall.
- Factory.
- Technical corridor.
- MEP shaft.
A major advantage is the ability to flexibly adjust the width and height to suit the available space.
2. When should round ducting be chosen?
Round ducts have a geometric cross-section that facilitates airflow and are commonly used in many ventilation, exhaust, and supply systems.
In particular, spiral round pipes can be used in locations requiring aesthetics or a uniformly round pipe alignment.
Sao Viet Air Ducting currently introduces spiral round air ducts with diameters ranging from D100 to D800 mm.
3. Compare the two types of pipes.
| Criteria | Square/Rectangular tube | Round tube |
|---|---|---|
| Low ceiling space | Very flexible | Elevation needs to be calculated. |
| Arrangement within the technical shaft | Favorable | Depending on the location |
| Open ventilation duct | Fit | It has aesthetic advantages. |
| Accessory | Shrink, cut, move, numb | Contract, contract, paralyze, turn around |
| Size flexibility | High | By diameter |
| Industrial applications | Wide | Wide |
4. Don't choose based solely on price.
A common mistake is comparing the cost per meter of pipe while ignoring the entire system.
Consider this:
- Quantity of accessories.
- Hanging rack.
- Installation space.
- Labor.
- Transportability.
- Aesthetic requirements.
- Design pressure loss.
5. Sao Viet Air Ducts can be custom-made to fit each system.
For large projects, combining multiple types of pipes within the same structure is perfectly normal.
For example:
- The main shaft uses a rectangular tube.
- The branch uses a round tube.
- Spiral is used in open-air areas.
- Specific applications require the use of materials according to specifications.
Conclusion
There is no single type of air duct that is absolutely suitable for every project. The most effective choice must be based on... HVAC design, actual space, and construction plan..
When working with Sao Viet Air Duct, The contractor can provide drawings, BOQ, and technical specifications to determine the appropriate product configuration.
SAO VIET AIR DUCT MANUFACTURING AND TRADING 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.
