In modern architecture and industrial production, ventilation systems are the core infrastructure that ensures indoor air quality, maintains production safety, and improves energy efficiency. Whether it is a precision electronic factory, a pharmaceutical GMP workshop, a large public building, or a rail transit hub, the selection and quality of the duct system directly determine ventilation efficiency, operational stability, and long-term operation and maintenance costs. Faced with the stringent requirements of different scenarios, relying on profound manufacturing experience and technical accumulation, we have built a full-scenario duct and supporting product system, including stainless steel lined Teflon ducts, stainless steel fully welded ducts, galvanized fully welded ducts, galvanized spiral ducts, and damper supporting products. With diversified choices and strict quality standards, we provide customized ventilation solutions for various industries.
Currently, the duct field is facing common industry problems such as insufficient air tightness, poor corrosion resistance, low installation efficiency, and cumbersome later maintenance. Especially in industrial corrosive environments and scenarios with extremely high cleanliness requirements, traditional duct systems are prone to air leakage, corrosion, dust accumulation and other problems, which not only affect ventilation effect, but also may bury potential safety hazards and additional energy consumption burdens. Data shows that the air leakage rate of unreasonable duct systems may exceed 10%, which not only causes energy waste, but also is difficult to meet the core indicators such as temperature, humidity and cleanliness. Our full-series products are designed to address these pain points, achieving precise adaptation of performance and scenarios through material innovation and process optimization.
Core Product Analysis: Focused on Different Needs, Adapting to Full-Scenario Requirements
Stainless Steel Lined Teflon Ducts: Chemical-Grade Protection for Severe Corrosion Scenarios
In scenarios such as electronic clean workshops, semiconductor etching rooms, and chemical waste gas treatment stations, ducts need to meet the requirements of structural strength, air tightness and strong corrosion resistance at the same time. Stainless steel lined Teflon ducts have become the preferred choice for such scenarios due to their unique composite structure. The product uses stainless steel as the base, providing strong mechanical support and pressure-bearing capacity, and the inner wall is lined with a high-purity polytetrafluoroethylene (PTFE) layer to build a molecular-level chemical barrier. Its excellent chemical inertness can resist the erosion of strong acids, strong alkalis and special corrosive gases, preventing medium penetration and pipeline corrosion.
We adopt high-temperature melting embedding and interface activation treatment technology to achieve metallurgical bonding between the Teflon layer and the stainless steel base, completely avoiding hidden dangers such as delamination and bubbling. At the same time, we strictly control the thickness of the Teflon lining within the range of 0.3–0.5mm to ensure dimensional stability in the full temperature range of -200℃ to +260℃. In addition, the smooth Teflon inner wall can reduce dust accumulation and microbial growth, reduce air resistance, not only ensure air quality, but also avoid cross-contamination. It is widely used in fields with high protection requirements such as fine chemicals, biomedicine and semiconductors, and its service life is more than 3 times that of ordinary stainless steel ducts.
Stainless Steel Fully Welded Ducts: Clean and Efficient, Building a Line of Defense for High-End Scenarios
For scenarios such as food and medicine, precision electronics, and high-end commercial buildings that have strict requirements on cleanliness and air tightness, stainless steel fully welded ducts have achieved performance breakthroughs with seamless full-weld technology, completely getting rid of the inherent defects of traditional flange connection and bite connection. The product uses national standard 304 stainless steel plates, and the composition of 18% chromium and 8% nickel forms a dense passivation film, which has excellent corrosion resistance and high temperature resistance, and can effectively resist the erosion of humid and weak acid-base environments, avoiding problems such as white rust and pitting corrosion.
We adopt automatic TIG welding with laser tracking system to realize full penetration welding of longitudinal and corner seams, and the weld penetration deviation is controlled within ±0.15mm. After pickling and passivation treatment, the surface has no color difference and no oxide scale, and the air leakage rate is far better than the national standard. Actual measurement shows that under 2000Pa static pressure, the air leakage of the product is less than 0.018m³/(h·m²), which can accurately maintain the stable pressure difference of the clean room. At the same time, the smooth inner wall is not easy to accumulate dust, which is convenient for cleaning and maintenance, complying with GMP, ISO14644 and other industry standards, and adapting to high-end scenarios such as vaccine filling and semiconductor factory service systems.
Galvanized Fully Welded Ducts: Cost-Effective Choice, Balancing Durability and Economy
In scenarios such as industrial plants, warehousing and logistics, and ordinary civil buildings that have requirements on cost control and need to ensure the durability and air tightness of ducts, galvanized fully welded ducts have achieved a balance between performance and cost-effectiveness. The product uses high-quality galvanized steel plates, which have good rust resistance after surface galvanizing treatment, which can effectively extend the service life and avoid the problems of easy corrosion and aging of ordinary steel plates; the full-weld technology ensures the air tightness of the ducts, reduces air leakage loss, and lowers the energy consumption of fan operation.
We optimize the welding process, strictly control the weld quality, ensure the overall strength and air tightness of the duct, and at the same time take into account the processing efficiency, which can be customized into different specifications and sizes according to project needs, adapting to medium and low pressure ventilation systems. Compared with ordinary bite ducts, the air leakage rate of galvanized fully welded ducts is greatly reduced, the maintenance cost is lower, and there is no need to frequently replace seals. It is widely used in general industrial ventilation, air conditioning supply of civil buildings, smoke exhaust of underground garages and other scenarios, and is an ideal choice that balances practicality and economy.
Galvanized Spiral Ducts: Efficient and Convenient, Adapting to Large-Span Ventilation Scenarios
With its unique structural design and processing technology, galvanized spiral ducts have become the preferred choice for large-span, high-wind-pressure and tight-construction-period projects. The product is continuously rolled from strip galvanized steel plates by a spiral bite machine, with spiral continuous joints, compact structure, high strength and outstanding wind pressure resistance. It can adapt to medium and high pressure ventilation systems, reduce the number of supports, and save installation space.
Compared with traditional rectangular ducts, the circular cross-section of galvanized spiral ducts has smooth air flow and low wind resistance, which can reduce fan energy consumption by 10%–15%. At the same time, the material utilization rate is high, the loss rate is ≤5%, which greatly reduces the project cost. Its mechanized mass production mode can achieve a customized length of 6~12 meters per section, with few interfaces and convenient installation, which can shorten the construction period by more than 30%. It is widely used in large industrial plants, subway tunnels, shopping malls and office buildings and other scenarios that require long-distance air supply and rapid installation, balancing efficiency and economy.
Damper Supporting Products: Precise Regulation, Ensuring Efficient System Coordination
The efficient operation of the duct system is inseparable from precise air volume regulation and safety protection. Our damper supporting products are perfectly compatible with various ducts, forming a full-process ventilation solution. The products include fire dampers, smoke exhaust dampers, regulating dampers and other categories, all of which have passed the national 3C certification. The fire resistance limit and sealing performance meet the national standards, which can realize precise regulation of air volume and air flow direction, taking into account energy saving and safety.
The dampers are made of high-quality steel, with compact structure, flexible operation and excellent sealing performance, which can effectively prevent smoke leakage and adjust zonal ventilation, adapting to the ventilation needs of different scenarios. Whether it is air volume regulation in industrial workshops or fire smoke exhaust in public buildings, our damper supporting products can work together with the duct system to ensure stable operation and precise regulation of the ventilation system, while reducing later operation and maintenance costs and building a solid line of defense for ventilation safety.
Quality Control and Scenario Adaptation: Empowering Various Industries with Professional Strength
We always put quality first and have established a full-process quality control system from material procurement to production and processing, and factory inspection. All products use high-quality raw materials that meet national standards. Before entering the factory, the steel plates are subject to multiple inspections such as spectrometer re-inspection and intergranular corrosion test to ensure that the material performance meets the standards; in the production process, precision equipment such as CNC laser bending and intelligent pulse welding are used to strictly control the processing accuracy, and each process is equipped with quality control points to ensure product consistency; before leaving the factory, all ducts are subject to strict inspections such as helium mass spectrometry leak detection and air tightness test, and the damper products pass special inspections such as fire resistance and sealing performance to ensure zero defects of delivered products.
Relying on the diversified product system, our solutions have been widely applied in various fields such as industrial manufacturing, medical and health, rail transit, commercial buildings and public facilities. From the industrial ventilation of Hefei Volkswagen Plant and Wuhu Wafer Semiconductor Project, to the clean ventilation of medical places such as Xuancheng People's Hospital, and then to the public ventilation of Hefei Metro and large shopping malls, we have always been guided by scenario needs, providing full-process services of customized design, standardized production and professional installation, which not only meet the core needs of different scenarios, but also help customers reduce construction and operation and maintenance costs, realizing efficient, stable and energy-saving operation of the ventilation system.
In the future, we will continue to deepen the duct field, focus on technological innovation and quality upgrading, continuously optimize product performance, improve the product system, and empower the ventilation systems of various industries with better products and more professional solutions, helping to achieve a more efficient, safer and more environmentally friendly ventilation environment, and becoming a trustworthy duct and supporting product supplier for customers.
