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Within any refrigeration or HVAC system, moisture is the primary catalyst for premature component failure. When moisture infiltrates the system, it reacts with fluorinated hydrocarbons and lubricating oils to produce highly corrosive hydrochloric and hydrofluoric acids. These acids attack copper tubing, copper joints, and compressor windings, ultimately leading to motor burnout and system breakdown.
As a leading Chinese manufacturer, Ningbo Taojun Refrigeration Equipment Co., Ltd. addresses this critical issue with our precision-engineered copper filter driers. Designed to absorb moisture, scavenge acids, and mechanically filter particulate contaminants, our components protect both domestic refrigerators and highly complex industrial cold chains.
Established in 1988: Blending academic research from Zhejiang University with advanced automation.
Originally founded in 1988 as the Xiangshan Refrigeration Accessories Factory of Zhejiang University, our organization has spent over 38 years pushing the boundaries of thermal dynamics. Strategically situated in Xiangshan, Ningbo, our facility occupies an advanced industrial campus dedicated to the design, research, development, and manufacturing of premium refrigeration components.
Our comprehensive portfolio features high-performance filter driers, check valves, air conditioning service valves, wire-tube condensers, copper & brass fittings, and heavy-duty HVAC cable ties. Certified as a National High-Tech Enterprise, Taojun partners with global appliance conglomerates, including Haier, Xinfei, Midea, Gree, Whirlpool, Electrolux, and Huarui.
Through robust technical collaborations with key academic institutions like the University of Science and Technology of China (USTC), we integrate cutting-edge materials and manufacturing processes to deliver high-integrity products globally.
Analyzing current global HVAC supply chain trends, customer specifications, and mitigation strategies.
Modern environmentally friendly refrigerants (like R32, R410A, and R290) are highly polar and hygroscopic. Standard industrial systems require molecular sieves with a high moisture retention capability (sorption capacity ≥20%) to keep moisture levels below 10 ppm.
Micro-debris generated during pipe-bending, brazing, and component wear can migrate straight to the compressor or capillary expansion tubes. A dual-barrier copper filter drier ensures continuous particulate capture down to 15 microns without introducing significant pressure drops.
Acids generated by thermochemical breakdown inside the system can attack copper joints and lead to leakage. Incorporating an active chemical scavenging matrix (activated carbon + specialized 3A/4A structures) neutralizes these acids before they can damage metal surfaces.
From domestic refrigeration units to high-demand industrial cold storage installations.
Requires cost-effective, high-volume production with absolute reliability. Our copper filter driers utilize high-purity copper shells and custom molecular sieves to ensure a maintenance-free lifetime of over 15 years.
Demands continuous, high-capacity moisture removal and lower flow resistance. Our larger copper accumulators and dual-core filter driers handle volatile load changes and protect multi-compressor racks.
Requires robust structural resistance to vibrations, high pressures, and thermal shock. Our filter driers feature reinforced shells and high-temperature-resistant internal grids to perform reliably under the hood.
Our 5D Quality Control system ensures a defect rate of under 0.05% for global supply safety.
Our GB/T19001-2016/ISO9001:2015 quality management certification (Registration No.: 41325Q00065R0S) confirms our design and manufacturing standards. In addition, our materials comply with the European Union ROHS directive, US UL certifications, and REACH standards.
Main Certification Document
Detailed Scope of Certification
Advanced production facilities and collaborative engineering expertise.
Core production lines and heavy tooling are sourced directly from Germany, ensuring precise sizing and wall thickness control during metal extrusion.
Our R&D center is staffed by 15 engineers, including graduates and researchers from the University of Science and Technology of China (USTC), keeping our designs at the forefront of the industry.
We supply custom lengths, inlet/outlet configurations, dual-inlet designs, and varying desiccant weights (ranging from 5g to over 100g) tailored to specific application requirements.
We source premium domestic copper (purity ≥99.9%), high-uniformity liquid crystal spacers, and high-temp-resistant protective films to ensure clean, contamination-free internal structures.
Nearly 40 years of continuous growth, technological innovation, and production scaling.
Started operations as the Xiangshan Refrigeration Accessories Factory, backed by the academic engineering department of Zhejiang University.
Constructed our dedicated factory building to transition from pilot-scale production to high-volume manufacturing.
Integrated the MES intelligent workshop management system, introducing automated tracking for quality control across all production processes.
Implemented advanced leak detection equipment alongside automated visual inspection systems to support clean-energy refrigeration projects worldwide.
Building a global brand through trust, innovation, and long-term partnerships.
A detailed look at the internal components of a high-performance filter drier.
To ensure a long, trouble-free operating life, our filter driers feature a multi-stage filtering design:
Our strategic roadmap aligns with global shifts toward low-GWP refrigerants and environmentally friendly manufacturing.
We are optimizing our molecular sieves to ensure long-term stability and high moisture absorption with natural refrigerants like CO2 (R744) and Propane (R290).
We are developing intelligent filter driers that feature integrated moisture sensors to alert service engineers before system failure occurs.
We are reducing our environmental footprint by using 100% recyclable paper packaging and cutting carbon emissions during the extrusion process.
We provide dedicated technical support and service engineering at every stage of the purchase process.
Our sales engineers, backed by over 15 years of pump and refrigeration experience, assist you with matching system specifications. Our inquiry hotlines are available 24/7, with guaranteed responses within 8 hours.
We offer technical training, equipment evaluations, and guidance on debugging, system integration, and troubleshooting to ensure proper setup and operation.
Our products come with a one-year warranty. We also provide free, long-term technical support and maintain contact to gather feedback and continually improve quality.
Expert technical answers to common questions about air con driers and copper filters.
Browse our selection of service valves, control boards, and heavy-duty condensers for commercial applications.
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