Explore our foundational range of premium copper pipe fittings, filter driers, and high-performance sealing materials engineered for robust HVAC performance.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a beautiful tourist city. Founded in 1988, its predecessor was the Xiangshan Refrigeration Accessories Factory of Zhejiang University. Over the span of more than three decades, Taojun has evolved from a specialized academic workshop into a national high-tech enterprise and a prominent brand in China's domestic HVAC industry.
Our comprehensive capabilities integrate design and development, raw material procurement, manufacturing, strict performance testing, and full after-sales support. Under our domestic brand "Lingshan", and our international identity "Taojun", we focus on engineering filter driers, check valves, air conditioning valves, condensers, brass and copper fittings, and refrigeration accessories that fulfill the complex expectations of modern thermal systems.
In 2012, Ningbo Taojun Refrigeration Equipment Co., Ltd. established a strategic partnership framework with industry leaders including Haier, Xinfei, Midea, Gree, Whirlpool, Electrolux, and Huarui. Today, our advanced components serve markets across Europe, the Americas, South America, Southeast Asia, the Middle East, and Africa.
Filter driers are critical to the longevity of HVAC refrigeration loops, protecting compressors from systemic failure caused by moisture, acids, and debris.
TAOJUN filter driers are encased in ultra-pure, seamless copper pipe. This provides excellent corrosion resistance, structural rigidity under high-pressure conditions (up to 4.5 MPa operating thresholds), and ensures leak-free installation during field brazing.
Featuring a optimized blend of 3A molecular sieves and activated alumina cores. The desiccant actively targets dissolved moisture in the liquid line while neutralizing harmful inorganic acids, protecting copper windings from corrosion.
Designed to provide maximum filtration surface area with minimum pressure drop (Delta P). This ensures that the system keeps running efficiently without starving the expansion valve of solid liquid refrigerant.
Our commitment to reliability is backed by empirical quality testing, global certifications, and a zero-tolerance philosophy for defects.
Ningbo Taojun Refrigeration holds valid ISO9001:2015 quality management system, EU RoHS environmental protection, and US UL certifications. We employ automated manufacturing tools alongside digital inspections to verify every single component before shipment.
Procuring HVAC components from China requires partners with robust supply chains, predictable lead times, and strict regulatory adherence. Taojun integrates local manufacturing efficiency with global standards to deliver reliable quality at competitive pricing structures.
Every Taojun component undergoes testing to satisfy critical HVAC standards:
100% helium mass spectrometer testing and burst testing to ensure pressure containment under heavy workloads.
RoHS and REACH compliance checks prevent system contamination by prohibited substances.
Driers undergo oven dehydration and hermetic sealing prior to packaging, ensuring active adsorption capability on arrival.
Developing component strategies that align with emerging low-carbon HVAC demands, sustainable materials, and advanced compressor systems.
Global cooling regulations mandate the phaseout of high-GWP HFCs in favor of natural agents like Propane (R290) and low-GWP synthetic alternatives (R32). These setups demand filter driers with structural designs that prevent chemical breakdown under high-heat compressor discharge configurations.
Commercial ice-making loops are sensitive to moisture contamination, which causes expansion valves to freeze up and interrupts production. Using copper filter driers with integrated mechanical screen plates helps maintain stable operation over extended service lifespans.
Reversible heat pumps experience bidirectional refrigerant flow. Our custom accumulator and bi-flow filter systems maintain high filtration efficiency in both heating and cooling operational cycles, eliminating the need for complex external valve circuits.
From a university engineering workshop in 1988 to a modern high-tech enterprise, Taojun has always prioritized technical innovation and reliable production management. Our manufacturing processes utilize MES digital workshop monitoring systems alongside computerized optical sorting to ensure consistent component geometry.
Collaborating directly with customer engineering teams. We assist with model selection, flow analysis, and mechanical sizing based on system displacement, heat exchange capacity, and refrigerant volumes.
We offer installation training guides, structural troubleshooting support, and a standard one-year replacement warranty on all core components. Technical inquiries are answered within 8 hours by a dedicated support agent.
Our group development is structured around four core operating values:
"Honesty, Innovation, Responsibility, Cooperation. We believe that global brand trust is built through quality component performance and reliable partnership."
GB/T19001-2016/ISO9001:2015 verified scope of certification for refrigeration component design and production.
Find answers to common questions regarding structural material properties, replacement sizing, and filtration performance.
Complete your mechanical setup with our line of copper tubes, heavy-duty valves, and custom evaporators designed for long-term operational efficiency.
Taojun