Guide to Buy Ac Duct Connection in NUOENWEI

In modern industry, high-temperature air ducts are a key component in many manufacturing processes. They are used to transport high-temperature gases or fumes and therefore need to have superior heat and corrosion resistance. In recent years, high-temperature air ducts made of fiberglass have gradually gained popularity due to their excellent performance. In this paper, we will discuss the advantages of glass fiber high temperature air duct, application areas and its development trend.






the advantages of glass fiber high temperature flexible duct




1. Excellent heat resistance
Fiberglass material can withstand temperatures up to 1000 ° C, which makes it in the high-temperature environment, suitable for high-temperature gas transmission.


2. Lightweight design
Compared with metal ducts, fiberglass ducts are lightweight, which reduces the burden on equipment and optimizes installation and maintenance costs.


3. High corrosion resistance
Fiberglass has good resistance to a variety of chemicals and environmental factors, so that it can still work stably in harsh environments.


4. Excellent insulation properties
Fiberglass provides excellent thermal insulation, reducing heat loss and improving energy efficiency while protecting surrounding equipment and staff.


5. Flexibility and customizability
Manufacturers can customize the size and shape of the duct to meet the requirements of different industrial applications.






Application Areas




Fiberglass high temperature air ducts are widely used in several industries, including:
1. Chemical industry
In chemical production, it is often necessary to transmit high-temperature exhaust and gases. Fiberglass ducts are suitable for flue and ventilation systems of chemical reaction equipment due to their corrosion and high temperature resistance.


2. Metallurgical industry
Many metallurgical processes require the transmission of gases at high temperatures. Fiberglass high-temperature ducts can effectively cope with these extreme conditions and ensure the normal operation of the equipment.


3. Power industry
In power plants, especially thermal power plants, fiberglass ducts are used to discharge flue gases and ensure that environmental protection standards are met.


4. Food Processing
Certain food processes require high temperature steam, and the high temperature resistance of fiberglass ducts ensures food safety and equipment performance.






the future development trend




With the continuous progress of industrial technology, the market demand for fiberglass high-temperature air ducts is expected to continue to increase. Future development trends may include:


1. Enhancement of material properties
Through composite material technology to improve the heat and corrosion resistance of air ducts to meet more demanding industrial conditions.


2. Intelligent
Development of high-temperature air ducts with temperature and pressure sensors to realize real-time monitoring and improve operational safety.


3. Green
With the rise of environmental awareness, future products will pay more attention to the environmental protection of materials to reduce the impact on the environment.






Conclusion




High-temperature air ducts made of glass fiber are gradually becoming the favorite of the market due to their excellent performance and wide application prospects. With the continuous progress of science and technology, future high-temperature air duct products will be more intelligent and environmentally friendly, providing more reliable protection for industrial development.




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In industrial environments, safety is a top priority, especially where flammable gases or dusts are present. Explosion-proof flexible ducts are an important ventilation solution that not only provides reliable air circulation, but also guarantees workplace safety. In this article, we'll look at the definition, applications, benefits and factors to consider when selecting explosion-proof flexible ducts.


What is explosion-proof flexible duct?
Explosion-proof flexible duct is a type of ventilation duct designed for hazardous environments, usually made of fire-resistant materials, to prevent accidents caused by gas explosions or fires. Compared to traditional ducts, explosion-proof flexible ducts are more adaptable and flexible, and can be installed and maintained in tight spaces or hard-to-reach areas.


Application Areas
Explosion-proof flexible air ducts are usually used in the following fields:
1. chemical plants: for gas and vapor discharge, to protect the safety of employees.
2. Mining industry: to provide effective ventilation in mines and prevent gas buildup. 3.
3. Pharmaceutical industry: to ensure a dust-free environment and control the spread of hazardous substances.
4. Marine and offshore engineering: providing reliable air circulation in complex environments.


Advantages of explosion-proof flexible duct
1. Safety: Explosion-proof design greatly reduces the risk of fire and explosion and guarantees the safety of the workplace.
2. Flexibility: It can be freely bent and adjusted in shape, applicable to various installation requirements.
3. Durability: Adopting high wear-resistant material, it can withstand high temperature and chemical corrosion.
4. Easy installation: the lightweight design makes installation and disassembly very simple, saving time and labor costs.


Considerations when choosing explosion-proof flexible ducts
When choosing explosion-proof flexible air duct, you need to consider the following factors:
1. material: choose the right material, such as aluminum alloy, PVC or fiberglass, depending on the temperature, pressure and chemical reactivity of the working environment.
2. Diameter and length: Choose the right size based on actual ventilation needs and space constraints.
3. Certification standards: Ensure that the product purchased complies with relevant safety and explosion-proof standards, such as ATEX, IECEx and other certifications.
4. Maintenance requirements: Choose a design that is easy to clean and maintain to ensure safety and reliability for long-term use.


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Summarize
Explosion-proof flexible ducts are essential for ensuring safe ventilation in modern industry. From chemical plants to mining operations, their flexibility and safety make them the preferred choice for many industries. By understanding their applications, benefits, and buying factors, you'll be better able to choose the right explosion-proof flexible duct for your needs.


If you have more questions about explosion-proof flexible ducts or would like to learn more about certain aspects, please feel free to contact me!
Contact Information:
For more information, please contact:
🌐web : https://www.nuoenwei.com
📞Phone/whatsApp : 86-15875732388
✉️E-mail : sales@fsnuowei.com

Introduction




In the design of industrial ventilation system, PVC flexible duct has become the mainstream choice because of its corrosion resistance and easy installation. Facing the market demand division between 0.38mm standard model and 0.6mm thickened model, this paper objectively analyzes the adaptability scenario of the two specifications through laboratory data and engineering examples.






I. Comparison of core parameters (Source: ASTM D1204 test standard)






Norm0.38mm Standard
0.6mm ThickenedBurst pressure (25℃)0.12MPa0.25MPaBending fatigue life (times) 15,00035,000+Unit weight (g/m³) 480780Puncture resistance (N)320650





II. Guidelines for Matching Typical Application Scenarios




▶ Preferred case for 0.38mm standard model
1.Short-term temporary ventilation system
Construction site dust removal, temporary exhaust ventilation for exhibitions and other projects <6 months, measured material cost savings of 37%.


2.Low pressure circulation system
Suitable for air exchange in workshops with fan pressure <800Pa, with steel ring support to meet ISO 14644 cleanliness requirements.


3.Lightly corrosive environment
Stable performance in conventional acid and alkali environments of pH 5-9, suitable for food processing and electronic assembly workshops.


▶ Recommended conditions for 0.6mm thickened models
1.High-risk operating environments
Scenarios with sharp object impacts such as metal grinding, slag transportation, etc., with a 210% increase in abrasion resistance (see OSHA 1926.55 standard)


2.High temperature and high pressure system
High-temperature exhaust emissions below 80°C, with fiberglass reinforcement to withstand 1.5 times the design pressure


3.Permanent installation
Pharmaceutical factory GMP workshop, underground parking lot and other places that require more than 10 years of service life






III. Full life-cycle cost model






cost item0.38mm Standard
0.6mm ThickenedInitial procurement costs¥18-22/extended meter¥32-38/extended meterAverage annual maintenance costs 12%6%Total holding costs over 5 yearsreference value18% lowerNote: TCO analysis based on a 5-year life cycle of 200 meters of pipe, including replacement losses and downtime costs.




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IV. Engineering decision tree tool




1.Is the system design pressure >1200 Pa? → Yes → Select 0.6mm


2.Is it exposed to high temperature oil mist/metal debris? → Yes → Select 0.6mm


3.Is the budget limited to ¥25/m? → Yes → Select 0.38mm


4.Do you need to change the pipe frequently? → Yes → Choose 0.38mm






V. Industry Application Trends Report (2024)




●Automotive Manufacturing: 0.6mm models increased to 67% of welding shop use


●Data center: 0.38mm models due to the lightweight advantage of cold aisle applications increased by 41


●Environmental protection industry: the two specifications in the VOCs management shows 1:1 procurement ratio






concluding remarks




Thickness selection is essentially a systems engineering optimization problem. It is recommended that this be done prior to procurement:


● Media composition test (with particle hardness analysis)


● Pressure pulsation test


● Full cycle cost simulation


Energy efficiency of ventilation systems can be increased by 15%-40% through scientific selection.






For more information, please contact:
🌐web : https://www.nuoenwei.com
📞Phone/whatsApp : 86-15875732388
✉️E-mail : sales@fsnuowei.com


If you are interested in specific applications or customized solutions for air conditioning insulated ducts, you can contact us for professional advice and solutions tailored to your needs. Or you can find us through the following platforms：
https://www.nuoenwei.com/
https://www.youtube.com/@NUOWEIventilation
https://x.com/NUOWEIVENT
https://www.instagram.com/nuoenwei/
https://www.linkedin.com/company/foshan-nuowei-ventilation-co-ltd/?viewAsMember=true
https://www.facebook.com/NuoWeiventilation/

How to Connect Flexible Duct: 5 Professional Methods Explained



When connecting flexible ducts, properly connecting flexible ducts is crucial for optimal airflow and system efficiency. There are several reliable methods to join flexible ducts, each with its own advantages. In this guide, we’ll explore the five most common ways to connect flexible ducts, ensuring a secure and airtight fit for your ventilation system.




1. Flared Collar with Drawstring (Sleeve & Gasket Method)



This method uses a flared collar with a built-in drawstring to secure the flexible duct. Here’s how it works:
Slide the flexible duct over the flared collar of the fitting.
Tighten the drawstring to create a snug, airtight seal.
Secure with a zip tie or clamp for extra reinforcement.
✅ Best for: Quick installations where a tight seal is needed without additional hardware.

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2. Steel Band Overlap Connection (Dual-Band Coupling)



This method involves two steel bands (rings) on each duct end, which interlock for a strong connection:
Slide one duct’s steel band over the other.
Pull the overlapping bands tightly to lock them in place.
Ensure no gaps remain to prevent air leaks.
✅ Best for: Heavy-duty applications where a rigid, long-lasting connection is required.

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3. Zipper Connection (Quick-Connect Zip System)



Some flexible ducts come with integrated zippers for fast assembly:
Align the zipper tracks on both ducts.
Zip them together like a jacket, ensuring a smooth closure.
Check for gaps and reinforce with tape if needed.
✅ Best for: Temporary setups or when frequent disassembly is required.

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4. Webbing Strap with Buckle (Adjustable Cinch Strap)



This method uses a heavy-duty webbing strap and buckle to secure the duct:
Wrap the strap around the joined duct ends.
Thread the strap through the buckle and pull tight.
Lock the buckle in place for a firm hold.
✅ Best for: Large-diameter ducts where adjustable tension is beneficial.

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5. Stainless Steel Clamp (Hose Clamp)



A stainless steel clamp provides a strong, durable connection:
Slide the clamp over one duct end.
Insert the second duct and overlap the connection.
Tighten the clamp with a screwdriver until secure.
✅ Best for: Permanent installations requiring maximum durability.

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Which Connection Method Should You Choose?



For quick, tool-free installation → Drawstring or Zipper
For heavy-duty, permanent setups → Steel Band or Stainless Clamp
For adjustable, large-diameter ducts → Webbing Strap




Pro Tips for a Secure Connection



✔ Always inspect for air leaks after installation.
✔ Use foil tape or mastic sealant for extra airtightness.
✔ Avoid over-tightening clamps, which can damage the duct.
By choosing the right connection method, you can ensure efficient airflow, reduced energy loss, and a longer-lasting HVAC system. Need flexible duct supplies? Check out our high-quality connectors and accessories for a professional-grade installation!





🔗 Explore our ducting solutions today!
For more information, please contact:
🌐web : https://www.nuoenwei.com
📞Phone/whatsApp : 86-15875732388
✉️E-mail : sales@fsnuowei.com


If you are interested in specific applications or customized solutions for air conditioning insulated ducts, you can contact us for professional advice and solutions tailored to your needs. Or you can find us through the following platforms：
https://www.nuoenwei.com/
https://www.youtube.com/@NUOWEIventilation
https://x.com/NUOWEIVENT
https://www.instagram.com/nuoenwei/
https://www.linkedin.com/company/foshan-nuowei-ventilation-co-ltd/?viewAsMember=true

https://www.facebook.com/NuoWeiventilation/

NUOENWEI wins another million-dollar order from a strategic customer!



Recently, NUOENWEI successfully completed the delivery of a national air-conditioning infrastructure project of Insulated Flexible Air Duct, the batch of products will be used in the thermal insulation environment of industrial-grade ventilation system, the core parameters performance:
Applicable temperature: -15℃ ~ +100℃Color: yellowCustomized length: 4 metersDiameter: 300mm





For this shipment, our team went all out to ensure that each product was rigorously inspected and professionally packaged using a professional packaging process to prevent damage during transportation. In the video, you can see the use of a forklift to move these high quality thermal insulation hoses from the warehouse to the door, waiting for the upcoming transportation vehicle.


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Thermal insulation hose is an important part of our product line, which is widely used in construction, heating, ventilation and air conditioning (HVAC) systems and other fields. This batch of products is made of high quality materials with good thermal insulation performance to meet the needs of different customers.
We are always committed to providing excellent products and services, and maintain a good relationship with our domestic customers. Thank you for your interest in our shipment information and we look forward to providing you with more quality solutions in the future.
For more information about our insulation hose or other products, please visit our official website or contact our customer service team.




🔗 Explore our ducting solutions today!
For more information, please contact:
🌐web : https://www.nuoenwei.com
📞Phone/whatsApp : 86-15875732388
✉️E-mail : sales@fsnuowei.com


If you are interested in specific applications or customized solutions for air conditioning insulated ducts, you can contact us for professional advice and solutions tailored to your needs. Or you can find us through the following platforms：
https://www.nuoenwei.com/
https://www.youtube.com/@NUOWEIventilation
https://x.com/NUOWEIVENT
https://www.instagram.com/nuoenwei/
https://www.linkedin.com/company/foshan-nuowei-ventilation-co-ltd/?viewAsMember=true
https://www.facebook.com/NuoWeiventilation/