Precision engineered parts critical for system integrity and operational longevity in advanced industrial airflow loops and refrigeration units.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a scenic coastal logistics and tourist hub. Founded in 1988, our corporate predecessor was the renowned Xiangshan Refrigeration Accessories Factory of Zhejiang University. This scientific foundation established our culture of research-driven manufacturing, allowing us to pioneer innovations in air conditioning, commercial cooling systems, and critical HVAC/R machinery components.
For over 30 years, our company has evolved into a comprehensive high-tech enterprise, integrating design, development, production, and sales. Today, our leading products include filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, air conditioning cable ties, and specialized HVAC components. By developing advanced structural components, we facilitate peak efficiency in global ventilation motors and HVAC units.
Our products have successfully passed certifications like ISO9001:2008 / GB/T19001-2016 / ISO9001:2015, EU RoHS Environmental Protection Directive, and US UL safety specifications. This technical compliance ensures our clients receive parts that meet international requirements for commercial building safety and energy efficiency.
A visual tour through our advanced engineering facilities, showing our structural design capabilities and raw material processing lines.
In modern HVAC/R systems, ventilation motors are the primary drivers of air exchange, pressure management, and thermal control. Worldwide, industrialization, strict environmental laws, and the growth of commercial cold chains have made high-efficiency ventilation motors essential components of building infrastructure.
The industry is shifting from traditional AC induction motors to brushless EC motors. EC motors integrate internal electronic controls, offering up to 70% efficiency under partial load, compared to 45% for AC counterparts. Our custom components support these units by keeping the motor's cooling loop free of contaminants.
International policies, such as the EU ErP Directive and US DOE efficiency regulations, demand high performance from ventilation equipment. Commercial operations must minimize power loss, which requires premium copper and brass components that reduce thermal resistance and system pressure drops.
From industrial cleanrooms and chemical facilities to high-humidity food processing plants, ventilation systems operate in demanding environments. This requires high-integrity piping, solid-core filter driers, and corrosion-resistant valves to prevent system failures.
Taojun specializes in refrigeration and HVAC components, supporting global manufacturers with custom copper and brass accessories. By keeping refrigerant circuits dry and uncontaminated, we prevent damage to compressor units and motor windings.
TAOJUN copper filter driers are designed to absorb moisture and acid, and to filter out physical impurities. They are used as critical factory components and field-replaced repair parts in residential, commercial, and industrial ventilation systems.
The next decade will demand further efficiency gains in ventilation and refrigeration technology. Our engineering department, in partnership with Zhejiang University, focuses on key development initiatives:
The industry phase-out of HFCs has increased the use of natural refrigerants like R290 (propane) and CO2 (R744). These operate under higher pressures and require higher gas barrier performance. Our team is developing advanced copper-alloy connections to handle these high-pressure, flammable environments safely.
We are integrating sensor nodes directly into filtration and accumulator assemblies. These smart components detect moisture levels and pressure changes in real time, alerting maintenance teams before failures occur.
By adopting MES intelligent workshop systems and robot-arm orbital welders, we reduce manual assembly steps. Automated CCD visual inspection and helium leak testing ensure consistent product quality across large production runs.
Our components are used across domestic, commercial, and industrial HVAC/R configurations. Because refrigeration loops operate alongside ventilation motors, maintaining component integrity is essential for system stability.
Supermarket cold rooms and refrigerated transport require continuous airflow. Our heavy-duty copper filter driers protect the expansion valves in these systems from freezing. High-capacity molecular sieves absorb moisture from refrigerant lines, preventing system blockages and maintaining cold chain safety.
Offshore structures are exposed to highly corrosive marine air. Standard steel pipes degrade quickly in these environments. We supply high-purity, corrosion-resistant copper-nickel alloy fittings, capillary loops, and heavy-wall U-bend connectors to ensure long-term reliability on offshore installations.
Semiconductor and medical cleanrooms depend on precise airflow and temperature control. Our low-vibration condensers and valves help prevent temperature fluctuations, which protects delicate manufacturing equipment from thermal shocks.
For large commercial HVAC installations, replacing parts must be quick and reliable. Our standardized brackets, access valves, and pre-formed elbows fit directly into existing system layouts, reducing maintenance downtime.
We use advanced machinery and testing laboratories to ensure all manufactured components meet strict performance and reliability standards.
Equipped with German-imported automated extrusion, stamping, and welding systems.
MES-controlled assembly lines monitor throughput, ensuring consistent quality and speed.
Where research professors run pressure testing, chemical analysis, and aging runs.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is officially certified under GB/T19001-2016 / ISO9001:2015 (Registration No.: 41325Q00065R0S) for the design and production of filter driers, condensers, and access valves. This certification is verified via China's CNCA and partner organizations, validating our quality control and manufacturing systems.
We offer robust pre-sales and post-sales technical support. Our engineers help select components, specify materials, and troubleshoot custom ventilation designs to help your systems meet target efficiency ratings.
From our beginnings in 1988 as a university-affiliated workshop, Taojun has grown into a major OEM/ODM manufacturer. We have built long-term partnerships with prominent domestic and international home appliance brands, including Haier, Midea, Gree, Whirlpool, Electrolux, and Huarui.
We believe that a strong corporate culture is essential to maintaining high manufacturing standards. Our team operates based on four core values: Honesty, Innovation, Responsibility, and Cooperation.
Our 15-person research and development team, consisting of PhDs and professors, focuses on materials science and fluid mechanics. This technical expertise allows us to refine our product designs and manufacturing processes, helping clients build more reliable systems.
Our compliance audits verify our quality control systems, environmental protections, and structural manufacturing capabilities.
Detailed answers to common technical, engineering, and commercial questions about HVAC/R design and component integration.
In ventilation systems that use active refrigeration loops, moisture, acid, and particulates can enter the refrigerant lines over time. This can cause ice to form in the expansion valve or generate corrosive acids that damage the compressor motor windings. A copper filter drier captures these contaminants, protecting the compressor and ensuring stable heat transfer.
3A molecular sieves are specifically designed to absorb water molecules while excluding larger refrigerant molecules. This prevents the desiccant from adsorbing the refrigerant or lubricant, maintaining high water-retention capacity and preventing chemical breakdown within the system.
We use automated orbital welding and argon arc welding to join our copper components. This creates a clean, uniform weld joint. Additionally, each production batch undergoes high-pressure helium leak testing and automated CCD visual inspection to ensure the parts are completely sealed.
Yes, our high-purity C12200 copper fittings, heavy-wall U-bends, and capillaries are designed to handle the higher pressures of modern low-GWP refrigerants like R290 and R744 (CO2). We perform burst pressure testing to verify they meet the safety standards for these newer refrigerant types.
Yes. Our engineering department can design and manufacture components based on your specifications, including custom dimensions, shell lengths, connection types, and internal molecular sieve capacities. Contact our support team to discuss your project requirements.
Standard copper and brass accessories available for quick production and global distribution.
Standard replacement parts and structural assemblies for HVAC/R ventilation and refrigeration systems.
We supply products to major appliance manufacturers and distributors worldwide. Our logistics network serves key markets across Europe, the Americas, Asia, and Africa.
Taojun
