Explore our core engineering catalog designed for extreme thermal durability and zero-defect performance in residential and commercial cooling environments.
Located in Xiangshan, Ningbo—a prominent industrial center of Zhejiang Province—Ningbo Taojun Refrigeration Equipment Co., Ltd. has established itself as an industry leader in refrigeration solutions. Founded in 1988, our lineage traces back to the prestigious Xiangshan Refrigeration Accessories Factory of Zhejiang University, anchoring our company in engineering excellence and continuous academic collaboration.
For more than three decades, we have focused on the design, production, and distribution of top-tier refrigeration components. Our comprehensive portfolio includes high-efficiency filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, and heavy-duty protective tapes. Recognized in 2021 as a National High-Tech Enterprise, Taojun stands for reliability and innovation.
Our commitment to rigorous design parameters, strict quality systems, and client satisfaction has made our "Lingshan" brand of filters highly respected in China's domestic HVAC sector. Supported by ISO9001:2008 quality management system certification, EU RoHS environmental compliance, and UL listing in the United States, our manufacturing capabilities serve prominent home appliance brands worldwide.
In-depth insights into the materials, metallurgical precision, and strict manufacturing standards that protect cooling loops from leakage and moisture contamination.
In modern industrial and commercial cooling setups, the integrity of piping systems is critical to prevent leaks. The refrigeration circuit is subjected to high pressures, dynamic vibrations, and temperature changes, making the performance of connection points vital. Brass connections made from high-grade alloys (such as CW617N, C37700, and C36000) are standard in the industry due to their strength, corrosion resistance, and excellent machining properties.
By using dezincification-resistant (DZR) brass alloys, Taojun prevents alloy breakdown in humid or acidic conditions. This protection is necessary for modern refrigeration systems using eco-friendly refrigerants like R32, R410A, and R290, which operate at higher pressures and require connection points to maintain tight tolerances and high mechanical strength.
Maintaining reliable quality in refrigeration components requires careful material selection and strict testing protocols. Taojun utilizes advanced raw materials and testing systems to verify the reliability of every component:
Ningbo's industrial cluster provides Taojun with strategic access to supply chains, logistics networks, and engineering talent. Combining these regional benefits with our factory-direct capabilities allows us to deliver high-quality products globally:
How we maintain tight quality controls and product consistency over millions of production cycles.
Our core production machinery is imported from Germany. This equipment allows us to maintain tight tolerances on brass fittings and copper shells, ensuring reliable fitment in high-pressure loops.
Our engineering center features 15 dedicated specialists, including researchers and graduates from the University of Science and Technology of China (USTC). This academic background drives our materials science research.
We provide full customization for specific shape, thread, and capacity requirements. Our development cycle supports rapid prototyping and testing, allowing you to bring new products to market quickly.
Our raw material specs include Japanese-sourced ITO film (zero shrinkage, high color uniformity) and liquid crystal spacers (excellent uniformity) combined with adhesives imported from Europe. This standard ensures high product stability.
Our test protocols include 500-hour damp heat tests, oven-based moisture extraction, and high-voltage breakdown checks (tested up to 100V). These procedures ensure that our products deliver stable performance over time.
All products are certified compliant with RoHS and REACH standards. We focus on lead-free brass formulations and use recyclable packaging materials to support green supply chains.
Over three decades of manufacturing history, quality system upgrades, and global supply partnerships.
Founded as Xiangshan Refrigeration Accessories Factory of Zhejiang University, starting our long-term focus on advanced refrigeration technologies.
Built and opened our dedicated production facility to expand output and support regional consumer brand partnerships.
Introduced our MES intelligent workshop management system, bringing digital tracking and quality records to our manufacturing lines.
Established Ningbo Taojun Refrigeration Equipment Co., Ltd. and introduced the "Taojun" brand of condensers, split service valves, and accessories.
Recognized as a National High-Tech Enterprise in China, reflecting our focus on process automation and quality system investments.
Expanded our global footprint, providing customized brass and copper components to customers across Europe, North America, and Southeast Asia.
Taojun's products are used in residential, commercial, and industrial applications. Our components are designed to meet the demands of various operating environments:
Our service valves, connection points, and filter driers are designed to handle the high pressures and refrigerant velocities typical of modern home heat pumps and air conditioning systems.
For food display cases, cold rooms, and distribution networks, our copper filter driers absorb moisture and filter particulates to prevent compressor downtime.
We manufacture heavy-duty liquid line driers and large accumulators designed to protect refrigeration circuits in demanding industrial environments.
Our filter driers and connection components are constructed to ensure durable sealing and filtering performance:
A global brand is supported by a strong corporate culture. We believe in sustainable development through collaboration, technical expertise, and operational honesty.
We adhere to ethical business practices, prioritizing product reliability and transparent communication. Honesty is a key driver of our long-term client partnerships.
Innovation keeps our business agile. We continuously refine our manufacturing processes, tooling designs, and operational management systems to meet shifting industry needs.
We are committed to delivering reliable products that protect customer systems, and we prioritize environmentally conscious manufacturing workflows.
Collaborating closely with clients and technology partners allows us to combine resources, solve engineering challenges, and achieve shared business goals.
Juntao Refrigeration (Ningbo Taojun) manufactures to verified standards. Our processes are certified under GB/T19001-2016 / ISO9001:2015 (No. 41325Q00065R0S).
Main ISO 9001 Certification Document
Detailed Scope of Certification
From custom material specification to global logistics, we support clients throughout the integration process.
Common questions about material properties, custom configurations, and ordering processes.
Browse our expanded selection of copper fittings, industrial filter cartridges, and safety valves for domestic and commercial HVAC installations.
Taojun