Explore our core manufacturing categories, including capacitors, brackets, compressors, and safety valves engineered for maximum operational integrity.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a beautiful tourist city. Founded in 1988, our legacy is rooted in the Xiangshan Refrigeration Accessories Factory of Zhejiang University. Over 30 years of rapid development, we have evolved into a comprehensive high-tech enterprise integrating R&D, advanced manufacturing, and global commercial trade.
As a registered National High-Tech Enterprise since 2021, Taojun specializes in critical components: filter driers, check valves, air conditioning valves (including Can Tap Valves), condensers, brass and copper accessories, and HVAC sealing tapes. Our brand "Lingshan" and "Taojun" are recognized across the domestic and global refrigeration markets for durability, low leak rates, and precise fitment.
To support quality validation, our manufacturing facility has passed ISO9001:2015 (Registration No.: 41325Q00065R0S), EU RoHS environmental directive certification, and US UL certification. We operate under the philosophy that customer satisfaction is our unwavering pursuit.
Inside Taojun's Automated Precision Production & Testing Facility
High-purity metallurgy and precision seals designed to handle high pressures, prevent system contamination, and secure leak-free charging operations.
Utilizing high-purity copper and C3604 brass bodies welded via argon arc welding. Our sealing gaskets are crafted from premium PTFE/Viton rubber to eliminate refrigerant loss during connection.
Equipped with 3A Molecular Sieve core technology. Capable of removing moisture (water absorption ≥20%) and acidic impurities, prolonging compressor lifespan and preventing mechanical freeze-ups.
Tested under rigorous environmental chambers: High & low temperature exposures from -35°C to 75°C for 500 hours, and high-pressure nitrogen/helium leak testing to ensure absolute reliability.
| Component Category | Primary Material Standard | Working Pressure (Max) | Compatibilities | Test Methods Applied |
|---|---|---|---|---|
| Can Tap Valves | HPb59-1 Brass / C3604 | 800 PSI / 55 Bar | R134a, R1234yf, R600a, R290 | Helium Mass Spectrometer Leak Detection (<0.5g/year) |
| Copper Filter Driers | TP2 Copper Pipe (99.9%) | 650 PSI / 45 Bar | All HFC, HCFC, & HC systems | 500-Hour Thermal Shock (-35°C to 75°C) |
| Access Valves | Lead-Free Brass / Copper Extrusion | 750 PSI | Universal HVAC Charging Hoses | 100% Core Pin Actuation Lifetime Test |
We combine state-of-the-art European production machinery with rigorous university-backed development to secure your HVAC supply chain.
Backed by our historical ties to Zhejiang University. Our design center houses engineers specializing in fluid dynamics and materials engineering.
Our key production systems and custom mold setups are imported directly from Germany to preserve tolerance accuracy down to ±0.02mm.
Utilizing high-end MES workshop tracking, automated optical sorting (CCD inspection), and 100V high-voltage insulation tests for electrical parts.
We work directly with refrigeration titans like Haier, Midea, Whirlpool, and Electrolux, custom styling dimensions to meet specific blueprints.
How our strategically positioned Ningbo facility maximizes cost efficiencies and secures seamless cross-border distribution.
Ningbo ranks as one of the world's most advanced logistics and industrial clusters for copper metallurgy, casting, and precision valves. Operating from Xiangshan, Ningbo, Taojun Refrigeration harvests this complete industrial integration to secure raw material purity, stable copper alloy prices, and direct container logistics through Ningbo-Zhoushan Port.
From standard automotive servicing to heavy industrial cold chains, discover how our valves adapt to current market evolutions.
Our Can Tap Valves provide secure puncture action on disposable canister cans, letting service shops recharge auto climate control units without releasing greenhouse gases.
Providing high-purity copper filter driers and safety valve components to domestic refrigeration brands, ensuring long term system integrity in household freezers.
With R290 and R1234yf gaining traction globally, we are redesigning flow structures to optimize gas velocities, reducing system pressure drop and enhancing energy efficiency.
Establishment: Founded as Xiangshan Refrigeration Accessories Factory, developing refrigeration components in close collaboration with the engineering department of Zhejiang University.
Operational Evolution: Integrated the MES Intelligent Workshop Management System to control real-time production quality and manufacturing traceability.
Brand Expansion: Established Ningbo Taojun Refrigeration Equipment Co., Ltd. and launched the signature "Taojun" condenser and stop valve lines.
Hi-Tech Designation: Confirmed as a national high-tech enterprise, recognizing our internal technical patents, specialized materials testing lab, and cleanroom assembly operations.
Next-Gen Sustainability: Developing advanced leak-proof charging connectors and eco-friendly packaging layouts for European and North American OEM accounts.
We back our precision hardware with a structured technical service plan designed to minimize integration challenges.
Connect with a dedicated sales engineer backed by 15+ years of pump and valve technical experience. Rapid response within 8 hours.
We provide a one-year structural warranty on all mechanical valve models, with lifelong access to diagnostic troubleshooting and replacement support.
Access our factory test reports, including pressure cycle performance curves, salt spray corrosion tests, and molecular sieve moisture absorption benchmarks.
Get clear answers regarding structural specifications, customized orders, testing protocols, and distribution support.
Choose from high-performance PVC tapes, custom molecular filter driers, brazing rods, and split service valves direct from our manufacturing facility.
Taojun