Taojun
Copper Alloy Capillary Coil Tube for Oman Cooling Plants
High-grade refrigeration-standard copper alloy capillary coil tubes tailored for domestic and commercial HVAC manufacturing throughout Oman.
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High-grade refrigeration-standard copper alloy capillary coil tubes tailored for domestic and commercial HVAC manufacturing throughout Oman.
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Heavy-duty 10g/15g/20g refrigeration copper filter driers engineered to absorb residual system moisture in demanding industrial freezers.
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Durable, seamless copper equal tee pipe fittings designed to maintain structural integrity under high pressure in GCC industrial climates.
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High-reliability low-temperature compressor built to deliver consistent thermal management in high-ambient-temperature environments.
View Technical Details →Under the vision of Oman Vision 2040, the Sultanate of Oman is rapidly transforming into a primary industrial hub within the GCC region. Key areas such as the Port of Sohar, Salalah Free Zone, and Duqm Special Economic Zone (SEZAD) are seeing large-scale infrastructure projects, modern cold-storage warehouses, and specialized petrochemical refineries. In these sectors, reliable temperature management is critical.
Operating refrigeration systems in Oman presents unique environmental challenges. Ambient summer temperatures regularly exceed 50°C, and coastal facilities face high levels of humidity and airborne salinity. Under these extreme conditions, standard capillary tubes and refrigeration pipes can quickly succumb to corrosion, structural failure, and leaks. This results in costly operational downtime.
To meet these challenges, Taojun Refrigeration supplies high-purity copper capillary tubes featuring customized wall thicknesses and anti-corrosive properties. These components are specifically engineered to withstand harsh local climates, ensuring consistent refrigerant flow control and long-term durability for residential, commercial, and industrial HVAC/R units across Oman.
Founded in 1988, Ningbo Taojun Refrigeration Equipment Co., Ltd. originated from the Xiangshan Refrigeration Accessories Factory of Zhejiang University. Over the past 30 years, we have grown into a comprehensive, high-tech enterprise specializing in the R&D, design, manufacturing, and distribution of refrigeration components, including copper capillary tubes, filter driers, stop valves, and condensers.
In 2021, Taojun was recognized as a National High-Tech Enterprise in China. Our state-of-the-art facilities utilize imported German production machinery and are managed by an advanced MES digital production control system. This setup enables us to maintain tight tolerances and zero-defect quality standards on all production batches. Today, our products support major international appliance brands like Haier, Midea, Whirlpool, and Electrolux, and are widely exported to regional hubs in the Middle East, South America, and Europe.
By combining advanced academic research with state-of-the-art manufacturing equipment, we supply precision HVAC/R components built to perform reliably under the most demanding conditions.
Our core production machinery is imported directly from Germany, ensuring precise extrusion, cutting, and deburring of copper capillary tubes down to a tolerance of ±0.02mm.
Supported by engineers and researchers from the University of Science and Technology of China (USTC), we focus on developing innovative refrigerant flow pathways and thermodynamic improvements.
We test our raw materials and finished products extensively. Our quality control protocol includes high/low temperature cycles (-35°C to 75°C), thermal shock tests, and helium leak testing to ensure absolute reliability.
Extrusion Line
Cutting Process
Leak Testing Area
Inspection & Packing
As the GCC region updates its environmental regulations to phase out high-GWP hydrofluorocarbons (HFCs), local industries are increasingly adopting eco-friendly alternatives like R290 (propane), R32, and CO2 (R744). These refrigerants operate under higher pressure dynamics and require specialized flow parameters.
To address this transition, Taojun has updated its capillary extrusion process. Our updated tubes feature smooth inner walls to reduce turbulence, minimize pressure drop, and prevent oil return issues in high-pressure refrigeration systems. This makes them ideal for modern HVAC retrofits and new sustainable cold storage builds in Oman.
Refrigeration facilities operating in coastal areas, such as the Port of Sohar and Salalah, are exposed to highly corrosive marine air. Standard copper tubes can experience pitting corrosion when exposed to airborne chlorides and high humidity.
To improve durability, we manufacture our copper capillary tubes from high-purity, deoxidized phosphorus copper (C12200). This alloy provides excellent thermal conductivity along with strong resistance to environmental corrosion. Additionally, we offer custom polymer jackets and anti-corrosion outer coatings for systems installed in coastal zones, providing long-term reliability.
Designed for agricultural and seafood storage hubs, our large-capacity copper capillary assemblies are built to manage constant refrigerant expansion, helping to maintain strict temperature controls.
Our capillary systems support precision cooling units used in remote oil & gas refineries, helping to protect critical process control equipment from overheating in desert environments.
Our components are engineered for heavy-duty HVAC installations in shopping malls, office buildings, and hotels, helping to improve energy efficiency and lower utility costs during Oman's hot summers.
At Ningbo Taojun, our manufacturing processes are certified to meet international industry standards. Our facility is certified under GB/T19001-2016/ISO9001:2015 (Registration No: 41325Q00065R0S), ensuring consistent quality controls from raw material selection through to final product testing.
Additionally, our products comply with the European Union RoHS and REACH environmental directives and are UL-listed for safety in North American and GCC markets. These certifications assure our commercial partners in Oman that they are sourcing components that meet strict global performance and safety criteria.
ISO 9001 Quality Certificate
Scope of Certification
We implement strict quality assurance steps at every stage of production:
Durable, copper-coated double-wall steel Bundy tubes designed for automotive air conditioning and industrial fluid transport lines.
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An alternative, corrosion-resistant aluminum filter drier designed for lightweight industrial cooling configurations.
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Equipped with high-capacity 3A desiccant sieves, designed to capture moisture in coastal Omani warehouse refrigeration systems.
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A high-efficiency electric cooling fan motor designed to operate reliably under high ambient operating temperatures.
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Durable 1/4" to 5/8" copper and brass gas stop split service valves, built for high-pressure outdoor split AC units.
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Designed to prevent liquid slugging, helping to protect compressor motors in large-scale GCC HVAC installations.
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A reliable vacuum pump designed for HVAC commissioning and moisture evacuation in residential and commercial split installations.
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Heavy-duty brazing torch kit engineered to create strong, leak-free solder joints in residential and commercial HVAC piping networks.
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