Explore our core engineering line-up, featuring universal brackets, specialized cooling fans, precise dual gauge valves, and high-purity copper fittings.
A heritage of engineering excellence from the heart of China’s refrigeration industry.
Founded in 1988, Ningbo Taojun Refrigeration Equipment Co., Ltd. (originally established as the Xiangshan Refrigeration Accessories Factory of Zhejiang University) has dedicated over three decades to the development, production, and distribution of advanced thermal management systems. Situated in Ningbo, Zhejiang Province, our manufacturing infrastructure serves as a benchmark for high-performance fluid control solutions.
Over the years, we have transitioned from a localized academic research partner into a comprehensive national high-tech enterprise. Our core capabilities cover research and development, smart manufacturing, and strict international compliance. We engineer and export a vast selection of refrigeration hardware, including filter driers, check valves, service/access valves, condensers, brass and copper connectors, and customized AC installation kits.
Our commitment to excellence is verified by certifications such as ISO 9001:2015, EU RoHS directives, and US UL approvals. This dedication guarantees that our components meet the strict standards required by world-class appliance brands like Haier, Midea, Whirlpool, Gree, and Electrolux.
Addressing the shifting paradigm of high-pressure eco-friendly refrigerants and strict industrial efficiency demands.
Modern refrigeration applications require transition to eco-refrigerants like R32, R290 (propane), and CO2 (R744). These demand components that can withstand pressures exceeding 60 bar. Our brass fittings are engineered with optimized wall thicknesses and forged H59-1 brass to prevent mechanical fatigue and micro-fissures.
Hose brass components in industrial environments face moisture, acidic vapors, and chemical cleaning agents. Our proprietary alloy blends incorporate elements that prevent dezincification (DZR), protecting the integrity of threaded connections and preventing costly refrigerant leaks in commercial systems.
A single leak in a commercial refrigeration loop can compromise inventory worth thousands of dollars and release harmful greenhouse gases. By utilizing automated induction brazing and helium-mass spectrometer leak testing, we guarantee leak rates under 1x10⁻⁸ mbar·l/s for all brass valves and copper accumulators.
Years Engineering Experience
Ph.D. & Professor Level R&D Engineers
Exporting Countries & Regions
Maximum Factory Defect Rate
A comprehensive overview of our core thermal loop protection and fluid control offerings.
Designed to absorb moisture, eliminate acid deposits, and capture solid impurities. Made from high-purity copper shells, they contain a customized blend of 3A molecular sieves (water adsorption capacity ≥ 20%) and activated carbon. Ideal for household refrigerators, commercial freezers, and automotive AC systems.
Forged under strict thermal conditions to eliminate porosity and maximize mechanical resilience. We produce access valves, charging valves, U-bends, and custom manifolds. Suitable for high-vibration environments, guaranteeing long-lasting seal connections.
Optimized thermal dissipation tubes made with precise wall-thickness control. Suitable for residential air conditioners, commercial ice makers, and cold chain beverage coolers. Designed to work efficiently with the latest environment-friendly refrigerants.
Our core capabilities are backed by scientific research, advanced metallurgy, and strict quality control protocols.
Our key forging and CNC tooling machines are imported directly from Germany. This investment allows us to achieve a processing tolerance of ±0.02mm on all brass and copper components, ensuring consistency across large production runs.
Our R&D center houses 15 dedicated engineers, with academic partnerships alongside institutions like the University of Science and Technology of China. This allows us to rapidly prototype custom designs and optimize the molecular structures of our alloys.
Every batch of components undergoes thermal shock testing (10°C to 90°C for 30 minutes), high/low temperature cycles (-35°C to 75°C for 500 hours), and high-voltage breakdown checks to ensure durability in extreme climates.
Guaranteed compatibility with regional environmental laws and pressure container regulations.
Navigating the complex landscape of regional environmental laws and pressure equipment directives can be challenging. As an export-focused manufacturer, Taojun has adapted its production techniques to meet international requirements:
ISO 9001:2015 Registration
Zhongci Quality Verification
From an academic workshop to a major high-tech enterprise.
Founded as Xiangshan Refrigeration Accessories Factory of Zhejiang University, focusing on localized academic R&D for thermodynamic engineering.
Constructed our main factory building to increase production capacity for domestic home appliance manufacturers.
Implemented our MES intelligent workshop management system, bringing digital control and trace-ability to our CNC machinery.
Established the "Taojun" brand, introducing high-performance stop valves and condenser series to international markets.
Certified as a National High-Tech Enterprise, expanding partnerships with global brands like Haier, Midea, Gree, and Whirlpool.
How we are preparing our manufacturing lines for the next generation of HVAC/R technologies.
We are currently developing brass fittings with built-in pressure and temperature sensors. This technology will allow real-time diagnostic reporting for commercial HVAC loops, helping to prevent refrigerant leaks before they happen.
As regulations phase out HFCs, we are optimizing our copper filter driers and service valves to handle the thermodynamic properties of new low-GWP refrigerants, such as HFOs and natural hydrocarbon systems.
Through closed-loop recycling of brass shavings and implementing clean electric smelting, we aim to reduce our carbon footprint by 30% over the next decade.
Detailed engineering answers to common technical queries about hose brass and refrigeration parts.
Choose from our selection of premium refrigeration brazing materials, high-efficiency compressors, and copper-to-brass fittings.
Taojun