High-performance technical elements engineered to meet demanding European manufacturing and environmental compliance standards.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is situated in Xiangshan, Ningbo, a prominent industrial and coastal logistics hub in China. Founded in 1988, our roots trace back to the prestigious Xiangshan Refrigeration Accessories Factory of Zhejiang University.
Over the span of more than three decades, our organization has established itself as an industry-leading high-tech enterprise, formalizing our national status in 2021. Our extensive portfolio specializes in structural and fluid connections, including premium copper filter driers, check valves, air conditioning valves, condensers, brass/copper fittings, and customized brazing consumables.
Through active technical integration with regional academic entities and rigorous implementation of international quality frameworks (including ISO9001:2015, EU RoHS, and US UL Certification), we guarantee that all mechanical components and auxiliary alloys exported to Belgium align with the high benchmarks required by European infrastructure.
Our certified manufacturing excellence is supported by verifiable credentials. As an ISO 9001-certified partner (Registration No.: 41325Q00065R0S), we maintain traceability and material purity records to comply with the European Chemical Agency (ECHA) standards.
Quality Management Certificate
Scope of OEM Certification
CE & Technical Compliances
Zhongci Verification Audit
An engineering analysis of metallic joining technologies in HVACR and heavy manufacturing corridors of Belgium.
Brazing is a highly specialized thermal process where a filler metal with a melting point above 450°C (but below the solidus temperature of the parent metals) is distributed between close-fitting joint surfaces via capillary action. In HVACR setups, where structural joints undergo extreme thermal cycling and pressure fluctuations (particularly under modern eco-friendly refrigerants like R32, R290, and CO2), the alloy's mechanical and chemical attributes are critical.
Brass brazing alloys, comprised primarily of copper and zinc, often incorporate minor additions of silicon, manganese, and tin to improve deoxidization, mechanical properties, and corrosion resistance. The inclusion of silicon restricts the vaporization of zinc during manual or induction torch procedures, which minimizes porosity and maintains a stable deposit.
| Alloy Classification | Nominal Composition (%) | Solidus Temp (°C) | Liquidus Temp (°C) | Tensile Strength (MPa) | Primary Industry Applications |
|---|---|---|---|---|---|
| Low-Fuming Bronze (RBCuZn-A) | Cu 57-61, Zn Bal, Sn 0.8-1.1, Fe 0.15, Si 0.04-0.15 | 888 | 899 | 380 - 450 | Structural tube joining, steel frames, repair shops |
| Nickel Bronze (RBCuZn-D) | Cu 46-50, Ni 9-11, Zn Bal, Si 0.04-0.25, P 0.25 | 904 | 927 | 480 - 550 | High-wear tools, heavy machinery, steel-to-carbide joints |
| Copper-Phosphorus (BCuP-2) | Cu 92.8, P 7.2 | 710 | 793 | 250 - 300 | Self-fluxing copper-to-copper lines, HVAC pipe routing |
| 15% Silver Brazing (BCuP-5) | Ag 15.0, Cu 80.0, P 5.0 | 643 | 802 | 290 - 330 | Vibration-prone refrigeration components, marine cooling |
The industrial landscape in Belgium—stretching from the logistics centers surrounding the Port of Antwerp to the manufacturing facilities in Wallonia and Flanders—requires components built to stringent specifications.
As European buyers navigate supply chain complexities, purchasing directly from a Factory 4.0 manufacturer offers clear advantages in terms of cost-efficiency and consistent quality. Taojun Refrigeration utilizes automated manufacturing systems, including MES (Manufacturing Execution Systems), to monitor production parameters in real time.
Our facility utilizes optical sorting systems, automatic helium mass spectrometer leak detection, and thermal shock chambers simulating temperatures from -35°C to 75°C. This ensures a final defect rate of less than 0.05%.
Leveraging Ningbo's deep-water port infrastructure, we arrange consolidated shipping and door-to-door delivery. This ensures timely customs clearance and delivery to Belgian industrial sites.
A look at our capabilities, production lines, and our core components designed for global refrigeration and HVAC systems.
Taojun has specialized in refrigeration parts manufacturing for 38 years.
Our core product range includes high-purity copper filter driers, check valves, access valves, and custom condensers. Designed to absorb moisture and acid while filtering out particulate impurities, our copper filter driers are critical for both domestic and commercial refrigerators, freezers, and heat pump systems.
Our manufacturing processes utilize automated brazing and assembly systems to ensure joint integrity, preventing refrigerant loss and protecting compressors from premature failure.
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Taojun High-Precision Refrigeration Component Production & Testing Lines
✓ Shell: High-purity copper pipe (corrosion and high-pressure resistant)
✓ Inner Core: 3A molecular sieve (water absorption ≥20%) + activated carbon layer
✓ Sealing Process: Argon arc welding to prevent system leaks under thermal cycling
✓ Extended Lifespan: Prevents moisture and acid-induced corrosion in the compressor
✓ Cooling Efficiency: Lowers flow resistance for optimized refrigerant cycling
✓ Broad Application: Suitable for domestic cooling, commercial cold storage, and automotive HVAC
✓ Refrigerator & freezer repair and replacement
✓ Industrial air conditioning maintenance and system upgrades
✓ Industrial refrigeration and cold-chain logistics servicing
High-durability accessories designed for precise thermal performance in industrial applications.
Decades of industry experience, engineering expertise, and robust quality control systems.
Our core manufacturing equipment is imported directly from Germany, ensuring precise dimensioning and repeatable tolerances.
Our technical center features 15 design engineers, including researchers from the University of Science and Technology of China.
We offer fully customized dimensional configurations, alloy compositions, and branding options to meet specific requirements.
Our raw materials are rigorously tested, utilizing high-quality ITO films and liquid crystal spacers with high-temperature resistance.
Products undergo high/low temperature tests (75°C to -35°C for 500 hours), thermal shock trials, and 100V high-voltage insulation tests.
All materials comply with RoHS, REACH, and WEEE directives, and feature 100% recyclable packaging.
A glimpse inside our production facility, showcasing the technology and scale of our operations.
Established as the Xiangshan Refrigeration Accessories Factory of Zhejiang University, focusing on precision thermal engineering.
Constructed our primary factory building, scaling up production to meet growing domestic manufacturing demands.
Implemented the MES intelligent workshop management system, introducing digital tracking for manufacturing processes.
Launched the "Taojun" brand for condensers, stop valves, and copper refrigeration components, expanding into international markets.
Formally recognized as a National High-Tech Enterprise, acknowledging our focus on manufacturing innovation.
Introduced lead-free and cadmium-free alloys to support the environmental goals of European industrial partners.
A reliable global brand is built on a foundation of clear corporate values: Honesty, Innovation, Responsibility, and Cooperation.
We prioritize integrity, quality, and open communication to build long-term relationships with our international partners.
We continuously update our technology, processes, and management frameworks to align with shifting market demands.
We work closely with customers to optimize their supply chains, helping them achieve their technical and commercial goals.
1998 Factory Infrastructure
2008 Shop Floor Modernization
2024 Intelligent MES Control
How our components are used across different manufacturing sectors.
Providing reliable filtration and joint integrity in supermarket display cases, cold rooms, and distribution networks.
Supporting high-pressure setups that use natural refrigerants, requiring tight tolerances and clean internal joints.
Robust copper and brass fittings designed to withstand vibration and pressure spikes in heavy machinery.
Technical support, pre-sales guidance, and reliable after-sales service for our global partners.
Answers to common technical, metallurgical, and supply chain questions.
Brass brazing alloys contain zinc and melt at higher temperatures (typically 880°C to 920°C). They are ideal for joining steel, cast iron, and nickel alloys, providing high shear strength. Copper-phosphorus alloys (BCuP series) melt at lower temperatures (700°C to 800°C) and are self-fluxing when joining copper to copper, making them the standard choice for refrigeration piping.
We source our raw materials from certified suppliers and run regular optical emission spectrometry checks. Our copper and brass products comply with RoHS limits, keeping lead, cadmium, and other restricted elements well within the allowed thresholds for European markets.
Capillary action draws the molten brazing alloy into the tight space between the mating surfaces. A consistent clearance (typically between 0.05mm and 0.15mm) ensures the alloy flows evenly, creating a strong, leak-free joint that can withstand system pressure and vibration.
We provide full OEM and ODM services, which include custom dimensional tooling, tailored alloy chemistry, pressure resistance certification, and split-shipment delivery options to match your production schedules.
Our comprehensive range of refrigeration fittings, contactors, and high-performance pumps.
Taojun
