Explore our premium factory-direct solutions engineered to guarantee refrigerant loop safety, mechanical integrity, and high-efficiency performance.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is strategically situated in Xiangshan, Ningbo, a world-class manufacturing hub. Founded in 1988, our predecessor was the Xiangshan Refrigeration Accessories Factory of Zhejiang University. This foundational link with one of China's top academic research institutions provided us with a core DNA of technical rigor and manufacturing innovation.
Over 30 years of development, we have evolved into a national high-tech enterprise integrating design, manufacturing, R&D, and global customer support. Operating under our premium brand "Lingshan" and "Taojun", we specialize in high-efficiency filter driers, check valves, AC valves, condensers, and high-purity copper accessories.
Our facility holds ISO 9001:2015 quality system certification, EU RoHS, and UL certifications. We are a trusted strategic partner for tier-1 home appliance brands including Haier, Midea, Gree, Whirlpool, Electrolux, and Huarui.
Watch our state-of-the-art automated production & helium leak-testing line in action.
Years of HVAC/R Engineering Experience
R&D Doctors & Professors from USTC
Strict QA Factory Defect Rate
Global Export Destination Countries
A closer look at how TAOJUN copper filter driers absorb moisture, capture acids, and filter out particulate impurities.
We construct our outer shells using 99.9% pure, high-deoxidized copper tubing (DHP C12200), ensuring superior structural strength, natural corrosion resistance, and high-pressure hermetic sealing during brazing.
Featuring an optimized blend of 3A molecular sieves (capable of water absorption ≥20%) and activated carbon layers to neutralize acidic breakdown compounds, preventing compressor motor burnout.
High-precision automated argon arc welding guarantees leak-free joints. Perfect for sealing complex systems that run on modern eco-friendly refrigerants operating under higher pressures.
Insights into the modern refrigeration landscape, regulatory compliances, and localized application engineering.
As the international HVAC/R industry rapidly transitions from high-GWP (Global Warming Potential) HFCs to low-GWP alternatives such as R32, R290 (propane), and CO2 (R744), the requirements for system cleanliness have grown exponentially. Trace moisture inside a refrigeration loop acts as a catalyst for hydrolysis, reacting with POE (polyolester) or PAG (polyalkylene glycol) synthetic oils to generate highly corrosive acids.
This chemical reaction degrades motor windings and leads to system failure. At Taojun Refrigeration, we design our copper filter driers specifically to combat this risk. Our components are pre-dried to exceptionally low residual moisture values and helium leak-tested to ensure zero atmospheric ingress during shipping, storage, and assembly.
To ensure peak reliability, Taojun imports core manufacturing equipment from Germany and raw materials from top-tier Japanese suppliers. For our smart products, we utilize ITO film (zero shrinkage, no color difference) and liquid crystal spacers imported from Japan, alongside premium adhesives from Europe. Finished products undergo a rigorous 500-hour thermal stability test at temperature extremes ranging from -35°C to 75°C.
Replacing faulty filter driers during routine home refrigerator or freezer maintenance to restore cooling efficiency and protect the compressor.
Ensuring dry conditions inside industrial cold rooms and supermarkets using large-capacity double-inlet copper accumulator filter driers.
Compact filter drier installations in vehicle air conditioning lines, designed to withstand continuous vibration and thermal cycling.
A history of innovation paired with versatile engineering across consumer and commercial markets.
Founded as Xiangshan Refrigeration Accessories Factory of Zhejiang University, initiating R&D on copper-based filtration components.
Implemented modern MES intelligent workshop management systems, upgrading production tracing and reducing error margins.
Becoming an industry pioneer in smart dehydration solutions for next-gen refrigerants, ensuring carbon-neutral production practices.
Juntao Refrigeration (NINGBO TAOJUN REFRIGERATION EQUIPMENT CO.,LTD.) is an ISO 9001-certified OEM/ODM partner.
Our official ISO certification (Registration No.: 41325Q00065R0S) validates our design and manufacturing capabilities for filter driers, condensers, and access valves. Partners can easily verify our credentials through China's CNCA system (www.cnca.gov.cn) or via our certification registrar Zhongci International (www.zcgirz.com).
ISO Certificate
Audit Scope Document
UL Standard Verification
EU RoHS Verification
REACH Registration
Safety Compliance
How we are designing today to prepare global cooling systems for tomorrow's sustainability targets.
Developing integration ports within the copper filter shell to house digital moisture sensors, transmitting real-time saturation data to local control boards.
Testing novel binders and desiccant materials to lower the carbon footprint of production while matching or exceeding the water uptake of classic 3A molecular sieves.
Transitioning toward full laser-weld integration on our standard filter line to achieve burst resistance thresholds exceeding 120 bar, ready for supercritical CO2 cycles.
Expert answers to frequently asked questions about moisture management, sizing, and compatibility.
Explore our secondary lineup of custom fittings, accumulators, and tools engineered to support long-term system durability.
Taojun