For the execution of a reliable and economical ventilation system in industrial and construction projects, Galvanized Spiral Duct is one of the top choices for engineers and purchasing managers. Its round design, high strength, and reduced air leakage have made this type of duct a standard choice for projects where durability, energy efficiency, and air quality are important.
Kian Fan's galvanized spiral duct is the result of over four decades of practical experience in the ventilation industry. As one of the country's most established manufacturers, this group produces galvanized spiral ducts in accordance with reputable international standards such as SMACNA and ASHRAE; standards that today serve as the basis for selection in industrial, commercial, and construction projects.
In HVAC and industrial systems, the quality of the air duct plays a direct role in the overall efficiency of the system. The round design of galvanized spiral duct, by reducing air leakage and pressure drop, improves airflow and reduces energy consumption, making it a reliable choice in professional projects.
What matters most at the time of purchase is choosing a manufacturer committed to construction quality and dimensional accuracy. By utilizing advanced machinery, high-quality galvanized sheet, and precise quality control, Kian Fan ensures that every galvanized spiral duct is produced exactly according to project needs and global standards.
In the following, we will examine the advantages and key points of choosing galvanized spiral duct to make decision-making easier and more secure for purchasing managers and project officials.
What is Galvanized Spiral Duct and How is it Produced?
Galvanized spiral duct is one of the most common and reliable methods of air transfer in HVAC, industrial, and construction systems. These ducts are made completely round from galvanized sheet strips that are locked together in a spiral (helical) shape.
This very spiral structure causes high strength, proper sealing, and reduced air leakage; a subject that directly affects the performance of the ventilation system and energy consumption.
Why is Galvanized Spiral Duct a Common Choice?
The most important features of this type of duct include:
- High resistance to corrosion and rust
- Lower pressure drop due to smooth internal surface
- Proper strength without the need for numerous supports
- Higher installation speed compared to traditional rectangular ducts
For this reason, galvanized spiral duct is considered a trustworthy option both technically and economically for modern projects.
Galvanized Spiral Duct Production Process
The production of galvanized spiral duct is a fully mechanized and precise process performed by specialized machines.
1. Entry of Galvanized Sheet into the Spiral Machine
High-quality galvanized sheet with standard thickness enters the roll-forming machine as a strip. The edges of the sheet are formed and connected with a mechanical lock to form the spiral body of the duct.
2. Spiral Forming and Diameter Adjustment
The machine continuously winds the sheet, and the duct diameter is precisely adjusted according to project needs; from small diameters to large industrial dimensions.
3. Cutting and Manufacturing Fittings
After the spiral tube is produced, the duct is cut to the required lengths. Fittings such as elbows, tees, transitions, and flanges are also manufactured with CNC machines and precise cutting to ensure fast and trouble-free installation.
Kian Fan Industrial Production Group, using advanced European machinery and precise quality control, produces galvanized spiral ducts in accordance with international standards SMACNA and ASHRAE. The result of this process is a duct with excellent sealing, easy installation, and low maintenance cost, which helps save energy and reduce project costs in the long run.
To receive technical specifications, product catalog, or a price quote for Kian Fan galvanized spiral duct, contact the sales experts or visit Kian Fan's official website.
Key Advantages of Galvanized Spiral Duct
Using galvanized spiral duct in HVAC, industrial, and construction systems is a more logical choice technically and economically compared to traditional rectangular ducts. The round design and spiral structure of these ducts improve airflow, reduce energy consumption, and simplify project execution.
Comparison of Galvanized Spiral Duct with Traditional Rectangular Duct
Feature
Kian Fan Galvanized Spiral Duct
Traditional Rectangular DuctAir Pressure Drop | Very low due to round cross-section and smooth internal surface | Higher due to sharp corners and rough surface
Air Leakage | Minimum, via continuous spiral seam | Higher due to multiplicity of seams and connections
Mechanical Strength | High, without need for many reinforcements | Medium, usually requiring additional reinforcement
Installation Speed & Cost | Fast installation and lower cost | Time-consuming and expensive
Sheet Consumption | Less for transferring similar air volume | More
Noise & Vibration | Low | Higher
Final Appearance | Modern, suitable for exposed execution | Usually requires additional covering
Exclusive Advantages of Kian Fan Galvanized Spiral Duct
In addition to the inherent advantages of this type of duct, Kian Fan products have several other important benefits that play a decisive role in purchasing managers' decisions:
High Corrosion Resistance
The use of high-quality galvanized sheet with a uniform coating guarantees reliable performance in humid and industrial environments.
Long Useful Life and Low Maintenance Cost
Reduced need for periodic repairs and replacement, especially in large projects.
Significant Reduction in Noise and Vibration
A suitable option for office, commercial buildings, and high-traffic spaces.
Flexibility in Architectural Design
Possibility of executing galvanized spiral duct in an exposed manner and electrostatic painting in harmony with the space decoration.
Real Savings in Energy Consumption
Lower pressure drop and better sealing reduce fan electricity consumption and increase ventilation system efficiency.
In summary, Kian Fan galvanized spiral duct is not just a technical choice; it is an economic, durable, and trustworthy solution for industrial, commercial, and construction projects.
For precise review of technical specifications and selecting galvanized spiral duct suitable for your project, Kian Fan experts are ready to guide you.
International Standards Effective in the Production of Galvanized Spiral Duct
In the production of galvanized spiral duct, quality is not limited only to the sheet material. Reputable international standards determine at what thickness the duct is made, how seams are executed, how much air leakage is allowed, and ultimately what performance the ventilation system will have.
For the buyer and project manager, adhering to these standards means lower costs, longer life, and less trouble in the future.
Most Important Standards Important in Galvanized Spiral Duct:
SMACNA Standard
The SMACNA standard is the main reference for the design and construction of metal ducts worldwide. This standard specifies:
- Appropriate galvanized sheet thickness based on duct diameter and system pressure
- Execution method of spiral seam and fittings such as elbows and tees
- Allowable air leakage rate in the ductwork system
Adhering to SMACNA makes ducts stronger, less leaky, and less energy-consuming; something that directly affects electricity bills and system lifespan.
ASHRAE Standard
ASHRAE standards focus more on energy consumption and indoor air quality. The most important ones are:
- ASHRAE 90: Reducing pressure drop and preventing energy waste
- ASHRAE 62: Providing fresh and healthy air in working and public spaces
For purchasing managers, adhering to these standards means a ventilation system that works more economically and creates a healthier environment.
ASTM Standard for Galvanized Sheet
The ASTM standard determines how resistant the galvanized coating of the sheet is. These standards guarantee:
- The coating is uniform and of appropriate thickness
- The sheet does not deteriorate quickly against moisture and corrosion
- The duct has high durability in industrial and humid environments
European Standards Eurovent and DW144
These standards focus more on sealing, construction precision, and actual performance of ducts and are very common in professional projects and modern buildings.
Kian Fan's Commitment to Global Standards
Kian Fan Industrial Production Group produces its galvanized spiral ducts based on reputable standards SMACNA, ASHRAE, and ASTM. The use of advanced machinery, high-quality galvanized sheet, and precise quality control has caused Kian Fan products to have reliable and stable performance in industrial, commercial, and construction projects.
If you want to choose a galvanized spiral duct that is technically standard and does not impose extra costs on the project over time, reviewing Kian Fan products will be a logical and low-risk decision.
View Galvanized Spiral Duct
Applications of Kian Fan Galvanized Spiral Duct in Various Industries
Galvanized spiral duct is not only for office and residential buildings; this duct also performs excellently in industries and sensitive environments. High strength, precise sealing, and low pressure drop have made it a professional and economic choice.
1. Heavy Industries and Factories
Steel, petrochemicals, cement, automotive, and power plants:
- Extensive industrial ventilation
- Suction of dust and light particles
- Transfer of light materials and garbage chuting systems
- Advantage: Stable and uninterrupted performance of large industrial systems
2. Health and Treatment Centers
Hospitals, clinics, clean rooms, and laboratories:
- Smooth and dust-free internal surface
- Reducing the risk of air contamination
- A safe and sterile environment for patients and staff
3. Food and Pharmaceutical Industries
Production halls, industrial hoods, and clean rooms:
- High resistance to moisture and chemicals
- Full compliance with GMP and HACCP standards
- Advantage: Maintaining product health and reducing maintenance costs
4. Commercial and Public Spaces
Shopping centers, restaurants, hotels, and conference halls:
- Modern appearance and possibility of exposed execution
- Electrostatic painting in harmony with decoration
- Reducing noise and vibration, creating a calm and pleasant environment
5. Specialized and Insulated Systems
Double-wall spiral duct with glass wool or elastomeric insulation:
- Sound and vibration control
- Maintaining air temperature and saving energy
- Suitable for acoustically sensitive spaces or projects with specific thermal needs
Kian Fan galvanized spiral duct, with high quality and adherence to global standards, is a reliable and cost-effective option for industrial, commercial, and health projects.
Criteria for Choosing a Reputable Manufacturer
- Commitment to international standards
- Production technology and precision (automatic roll forming, CNC, 0.1 mm accuracy)
- Product diversity and customization (diameter, thickness, material, and fittings)
- Technical support and after-sales service
- History and practical experience (over four decades of activity)
Closing Words: Smart Choice with Kian Fan
Choosing Kian Fan galvanized spiral duct, produced in accordance with international standards SMACNA and ASHRAE, is a smart and long-term decision for any project. This choice maximizes the energy efficiency of the ventilation system, reduces maintenance costs, increases the useful life of ducts, and provides stable and flawless performance.
With a commitment to standards, advanced production technology, product diversity, and comprehensive technical support, Kian Fan is a reliable option for industrial, commercial, health, and residential projects. This company, with over four decades of experience, manufactures its products with high precision and global quality, guaranteeing the optimal performance of the ventilation system.
To receive free specialized consultation, price quotes, or to view the complete catalog of galvanized spiral ducts and fittings, visit the Kian Fan products page on the official website or contact the sales team.
By choosing Kian Fan, you not only receive a globally standard product but also benefit from complete technical support and customized solutions for the success of your ventilation system.
Kian Fan; Your trusted companion in Iran's ventilation industry.
What is Galvanized Spiral Duct and why is it widely used?
Galvanized spiral duct is a type of air transfer duct with a round cross-section made from galvanized sheet strips in a spiral shape. The spiral design causes high strength, excellent sealing, and low pressure drop, making it a standard and economic choice in industrial, commercial, and construction ventilation systems.
What are the advantages of Kian Fan Galvanized Spiral Duct compared to rectangular ducts?
The main advantages include:
- Lower pressure drop and higher energy efficiency
- Fast installation and reduced execution costs
- High mechanical strength and long lifespan
- Minimum air leakage and reduced noise
- Possibility of exposed execution and electrostatic painting
3. In which industries and projects are Kian Fan Galvanized Spiral Ducts used?
These ducts are used in industrial, commercial, health, and residential projects, including:
- Heavy industries and factories (steel, petrochemicals, cement)
- Hospitals and clean rooms
- Food and pharmaceutical industries with hygiene requirements
- Commercial and public spaces needing modern appearance and noise reduction
4. What are the key international standards in the production of galvanized spiral duct?
Kian Fan produces its products in accordance with SMACNA, ASHRAE, and ASTM standards. Adhering to these standards guarantees construction quality, excellent sealing, long durability, and energy-optimized performance of the ventilation system.
5. How can one order Kian Fan Galvanized Spiral Duct or receive technical information?
For specialized consultation, price quotes, and viewing the complete catalog of galvanized spiral ducts and fittings, you can contact the Kian Fan sales team or visit the official website. Kian Fan experts provide the necessary guidance for choosing the best duct suitable for your project.
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