Explore our leading selection of engineered HVAC components, adapters, and system-critical units manufactured under strict ISO 9001 control.
Within complex HVAC/R setups and high-pressure fluid systems, thermal expansion, mechanical vibration, and tight spatial layouts present persistent challenges for engineers. The use of traditional rigid connections often leads to micro-cracking and eventual refrigerant leaks. That is where brass swivel elbows step in.
These specialized, multidirectional components allow fluid-carrying pipes to bend, rotate, and absorb structural stress without causing load-concentration points. Machined from solid, high-durability lead-free or low-lead brass alloys, our swivel elbows guarantee leak-proof longevity under extreme temperature ranges. As one of China's premier factories, we combine metallurgy expertise with advanced CNC tolerances to manufacture parts that keep your systems safe and operational.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a beautiful tourist city. Founded in 1988, its predecessor was Xiangshan Refrigeration Accessories Factory of Zhejiang University. The company's leading products include: filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, air conditioning cable ties and other refrigeration accessories series products.
After 30 years of hard work and rapid development, it has now become a comprehensive enterprise integrating the design and development, production and sales, and after-sales service of refrigeration accessories. In 2021, it became a national high-tech enterprise. Our company is committed to technological and process innovation, equipment improvement, and the introduction of advanced management concepts to produce first-class products.
With reasonable design, reliable quality, and perfect after-sales service, the "Lingshan" filter has become a well-known brand in the domestic refrigeration industry. The company has successively passed ISO9001:2008 quality management system certification, EU ROHS environmental protection directive certification, and US UL certification. The company always takes customer needs as the basis and continuously innovates management concepts to ensure efficient and stable development.
In 2012, Ningbo Taojun Refrigeration Equipment Co., Ltd. was established, creating the brand "Taojun" condensers, "Taojun" stop valves and other series of products. Over the years, it has established partnerships with well-known domestic and foreign home appliance enterprises such as Haier, Xinfei, Midea, Gree, Whirlpool, Electrolux, and Huarui. The product sales network covers major and medium-sized cities in China and is exported to Europe, America, South America, Southeast Asia, the Middle East, Africa and other overseas markets.
How our advanced brass swivel elbows solve heavy-duty fluid dynamics problems across international infrastructure sectors.
Continuous compressor pulses induce severe mechanical fatigue on structural pipe joints. Our swivel elbows isolate dynamic kinetic forces, preventing hairline cracks and reducing refrigerant vapor escape rates by up to 94.2%.
Heavy machinery and robotic systems with moving axes need coolant supplied during operation. The 360-degree rotational path of our swivel joints guarantees steady flow rates under constant movement.
In modern server farms and chillers, compact space is premium. Our 90-degree swivel profiles bypass layout limits, reducing pipe routing volume by 35% compared to regular pipe bends.
How current environmental directives and material regulations shift demands for high-performance brass parts.
The industrial pipe-fitting market is going through a massive shift driven by stricter low-lead regulations and sustainability mandates. Traditional leaded brass is being phased out globally, especially in North America and Western Europe, in favor of high-performance Lead-Free Brass (containing less than 0.25% lead) and Dezincification Resistant (DZR) Alloys.
Ningbo Taojun Refrigeration has been at the forefront of this shift. We updated our raw material supply chains to ensure all shipped brass components meet EU RoHS, REACH, and California AB1953 requirements. This ensures our clients avoid customs holdups and enjoy friction-free distribution across international borders.
Our raw copper is sourced directly from certified metal refineries, ensuring pure alloy structures with zero inner porosity. Standard sizing configurations (1/4", 3/8", 1/2", 5/8", 3/4" and metrics) are kept in stock to ensure quick shipping times.
Providing certified security for global operations.
Certified design and production standards (Zhongci Intl Registration No. 41325Q00065R0S).
Fully compliant with EU environmental directives, ensuring lead and heavy metal safety.
Tested and approved for high-pressure safety margins in domestic and commercial refrigeration.
Automotive-grade quality assurance protocols adapted for our standard factory components.
Preserving our core expertise in copper & brass refrigeration manufacturing
Taojun specializes in refrigeration parts for over 38 years. Our core portfolio includes filter driers, access valves, condensers, and premium brass connectors. Our copper filter driers are designed to absorb moisture and acid, and to filter out impurities. They are normally installed as new components or used as repair parts for both domestic and commercial refrigerators and freezers.
Engineered to match real-world field conditions across different global markets.
Scenario: Low-temperature air-to-water heat pumps. Our brass swivel elbows maintain dimensional stability and prevent freeze-expansion cracks during rapid thermal transitions from -25°C to 65°C.
Scenario: Offshore cooling loops exposed to highly corrosive marine air. We use specialized DZR brass alloy mixes that prevent zinc loss and extend component lifespans by up to 300% in humid, salty conditions.
Scenario: Industrial walk-in freezers. Compliant with strict safety standards, our joints prevent pressure build-ups under R448A and R449A refrigeration systems, helping commercial facilities stay compliant.
Our commitment to sustainable development, clean alloys, and advanced automation.
By 2026, we aim to transition all standard HVAC lines to C46400 naval brass and C87850 eco-brass, preparing our products for future strict environmental laws worldwide.
Developing leak-detecting fittings integrated with miniature electronic indicators that notify building maintenance systems of microscopic gas loss.
Increasing the use of automated CCD visual sorting and robotic forging systems in our Ningbo facility. This reduces dimension tolerances down to ±0.01 mm.
Review our official factory certifications and production lines.
Main ISO 9001:2015 Certification
Detailed Scope of Certification
Safety Compliance Approval
Over 35 years of R&D expertise with Zhejiang University collaboration.
ISO 9001, IATF 16949 certified; 5D quality system maintaining a low 0.05% defect rate.
Exporting to 50+ countries, with long-term partnerships with Haier, Midea, Whirlpool, and Electrolux.
Reliable OEM/ODM support, low 500-unit MOQ, and fast global delivery options.
RoHS, REACH, and WEEE certified; utilizing 100% recyclable packaging.
Equipped with a modern MES system, CCD visual inspection, and helium leak testing.
Expert answers to common engineering, material, and logistics questions about industrial brass swivel elbows.
Browse our expanded line of filter driers, tools, charging hoses, and specialized refrigeration components.
A world brand is supported by a strong corporate culture. We believe our culture is formed through impact, infiltration, and integration. Ningbo Taojun's development has been driven by our core values: Honesty, Innovation, Responsibility, and Cooperation.
Inquiry and consulting support backed by 15 years of technical experience. Dedicated technical service from our sales engineers, with standard response times under 8 hours.
Technical training, installation troubleshooting, and system upgrades. Includes a one-year warranty and free life-time technical support for all our refrigeration parts.
Taojun