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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 Copper Bend 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 Copper Bend 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
Copper Bend Tube is a round pipe widely used for compressing and pressure reducing.There should be one for every compressor, which is a tube connecting the accumulator and the outlet pipe. When designing the copper bend tube, the diameter, wall thickness, thickness and bend radius are all important factors to consider. Copper bend tube can be made according to customer requirements by welding or threading. In order to ensure the service life of copper, we adopt TP2Y material, round shape and close tolerance. It is easy to assemble and welded connection. Whether you use it or keep it, we recommend that you store it in a dry area as moisture may damage its performance.
Copper tubes are used in compressors as a means of transferring compressed air or refrigerant. They are favored for their high conductivity, resistance to corrosion, and durability. Copper tubes are commonly used in HVAC and refrigeration systems.
The outlet of a compressor accumulator is typically connected to a copper tube for efficient transfer of compressed air or refrigerant. Copper is a commonly used material in HVAC and refrigeration systems due to its good conductivity, corrosion resistance, and durability.
What considerations should be made when selecting the appropriate size and diameter for copper bend tubes?
Selecting the appropriate size and diameter for copper bend tubes is crucial to ensure the optimal performance of various applications. Here are the key considerations to keep in mind when making this choice:
Application Requirements: Consider the specific requirements of your application. Determine the intended purpose of the copper bend tube, such as conveying fluid, gas, or refrigerant, and the expected operating conditions, including temperature, pressure, and flow rate.
Fluid Compatibility: Ensure that the copper bend tube is compatible with the fluid it will be conveying. Copper is generally compatible with a wide range of fluids, but some chemicals or aggressive substances may require alternative materials.
Flow Rate: Calculate the required flow rate for the application. The tube's diameter should be selected to accommodate the desired flow rate without causing excessive pressure drop.
Pressure Rating: Determine the maximum pressure the copper bend tube will be exposed to during operation. Select a tube with the appropriate wall thickness and diameter to meet the pressure requirements.
Temperature Range: Consider the temperature range within which the copper bend tube will operate. Copper is suitable for a broad range of temperatures, but extreme conditions may necessitate specialized alloys or insulation.
Bend Radius: The bend radius of the copper tube is critical, especially for bend tubes. Ensure that the tube's diameter and bend radius are compatible with the space available for installation. Smaller bend radii can lead to increased stress and reduced tube life.
Copper Alloy: Choose the appropriate copper alloy based on the application's demands. For instance, soft annealed copper is more suitable for bending, while harder copper alloys may be preferred for structural stability.
Corrosion Resistance: Consider the presence of corrosive elements in the environment or fluid. If corrosion is a concern, select a copper alloy or coating that provides the necessary corrosion resistance.
Cost-Efficiency: While considering the technical aspects, assess the cost of the copper bend tube. Select a size and diameter that offers a balance between performance and cost-effectiveness.
Manufacturability: Consider the manufacturability of the bend tube. Bending copper tubes into complex shapes may require specialized equipment and techniques.
Installation Space: Assess the available space for installation. Ensure that the selected copper bend tube can fit within the designated space without compromising its performance or integrity.
Expansion and Contraction: Account for thermal expansion and contraction in the selection process. Copper has a relatively high coefficient of thermal expansion, which can affect its dimensions at different temperatures.
Tolerance and Precision: Pay attention to the required tolerances and precision for the application. Critical systems may demand tighter tolerances and precise bending.
Insulation Needs: Determine if the copper bend tube requires insulation for thermal efficiency and condensation control. The insulation may affect the outer diameter of the tube.

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