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Zhejiang Yinjia Copper Co., Ltd.
was set up in 2004.

Yinjia was established in 2004 with a registered capital of 55.6 million Yuan, located in the southeast of Zhejiang Province, China, 80KM from Hangzhou and 70KM from Ningbo, our factory covers an area of 24,000 square meters and has 240 manufacturing staff. We have also obtained the "Copper Pipe Production License" issued by the General Administration of Quality Supervision and Inspection of China and passed the ISO9001:2008 international quality management system certification.

As China Integrated Copper Finned Tubes Manufacturers and Factory, Yinjia specializes in the production of precision purple copper tubes, purple copper pipeline components and steel pipe pipeline components. The main products are: copper pipe assemblies, connecting pipes, bellows, silencers, four-way valve pipe assemblies for air conditioners, suction and discharge pipes applied to compressors, high-efficiency copper pipes for heat exchangers, etc. The products we produce are widely used in the air conditioning, refrigeration and heat exchanger industries and are well evaluated by our customers.

In 2014, Yinjia's sales of copper materials reached 1500 tons, and the output of products reached 80 million pieces, with an output value of 28,000,000 RMB. The company takes the market as the guide and strengthens the internal management, reform and innovation, implements 6S management, lean production, constantly restructuring, and improves the quality of products and services. Supply Integrated Copper Finned Tube Custom

With the tenet of "customer first, quality first", the company is dedicated to providing customers with satisfactory products and considerate services.
  • 24,000

    Plant area

  • 150

    Manufacturing staff

  • 230+


  • 300,000

    Daily output



  • ISO 9001:2015

  • ISO 9001:2015

  • Invention Patent Certification

  • High and New Technology Enterprise Certification

Industry knowledge
How do integrated copper finned tubes improve heat transfer efficiency?
Integrated copper finned tubes enhance heat transfer efficiency by significantly increasing the surface area available for heat exchange, and through the efficient conductivity properties of copper. Here's how these tubes improve heat transfer efficiency:
Increased Surface Area: The primary way integrated copper finned tubes improve heat transfer efficiency is by adding fins to the outer surface of the tube. The fins increase the external surface area available for heat exchange. More surface area means a greater contact area for heat transfer, allowing for better heat exchange between the fluid inside the tube and the surrounding medium (such as air or liquid).
Conductive Properties: Copper is an excellent thermal conductor. The use of copper as the base material for the tubes ensures efficient heat transfer between the fluid inside the tube and the tube walls. This property minimizes the resistance to heat transfer and facilitates the quick transfer of thermal energy from the fluid to the tube.
Improved Heat Exchange: Fins provide additional pathways for heat to flow, reducing thermal resistance. When the fluid inside the tube exchanges heat with the external medium, the fins act as extended surfaces that enhance the convection process. The turbulence created by the fins allows for more efficient heat exchange.
Enhanced Heat Transfer Coefficients: Fins increase the convective heat transfer coefficients because they promote better mixing of the fluid and the surrounding medium. This improved mixing and increased surface area result in a higher heat transfer rate.
Temperature Uniformity: Integrated copper finned tubes help maintain a more uniform temperature profile along the length of the tube. This uniformity is particularly important in applications like air conditioning, refrigeration, and heat exchangers where consistent heat transfer is necessary.
Efficiency in Compact Designs: Integrated copper finned tubes are valuable in situations where space constraints limit the size of heat exchangers or coils. The increased heat transfer surface area allows for more efficient performance within a compact design.
Energy Savings: By improving heat transfer efficiency, integrated copper finned tubes reduce the energy required to maintain the desired temperature. This leads to energy savings and lower operating costs.
Quick Response Time: Copper's thermal conductivity ensures that integrated copper finned tubes respond quickly to changes in heating or cooling demands. They are ideal for applications where rapid temperature adjustments are necessary.
Optimal for Air-to-Air and Air-to-Liquid Heat Exchange: These tubes are well-suited for applications involving air-to-air or air-to-liquid heat exchange, such as radiators, air coolers, and HVAC systems.
integrated copper finned tubes enhance heat transfer efficiency through the combination of increased surface area, the conductive properties of copper, and improved heat exchange capabilities. These features make them a valuable component in a wide range of applications, from heating and cooling systems to industrial heat exchangers and more.

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