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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 Corrugated Pipes 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 Corrugated Pipe 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
Material Composition of Integrated Corrugated Pipe
The material composition of integrated corrugated pipes can vary depending on the intended application and specific requirements. These pipes are designed to provide flexibility, durability, and resistance to various environmental factors. Common materials used in the construction of integrated corrugated pipes include:
High-Density Polyethylene (HDPE): HDPE is one of the most widely used materials for corrugated pipes due to its excellent combination of properties. It is known for its high strength, flexibility, resistance to chemical and environmental factors, and long-term durability. HDPE corrugated pipes are commonly used in drainage, stormwater management, and cable protection applications.
Polypropylene (PP): Polypropylene is another thermoplastic material often used in corrugated pipes. It offers good chemical resistance, low moisture absorption, and excellent resistance to cracking and abrasion. PP corrugated pipes are suitable for applications involving chemicals, air ducts, and cable protection.
Copper: Copper corrugated pipes are primarily used for certain specialty applications, such as HVAC (heating, ventilation, and air conditioning) systems, where the material's excellent heat conductivity and resistance to corrosion are important.
Other Metals: In specific cases, other metals like stainless steel may be used for corrugated pipes, especially in environments with high corrosion potential.
Composite Materials: Some integrated corrugated pipes are made from composite materials that combine layers of different materials. For example, a composite pipe might have an outer layer for structural support and an inner layer designed for fluid transport. These composite pipes aim to balance strength and functionality.
Corrugated Design of Integrated Corrugated Pipe
The corrugated design of integrated corrugated pipes is a key feature that sets them apart from traditional smooth-walled pipes. The corrugations, which are the ridges or folds along the length of the pipe, provide several benefits for various applications. Here's a closer look at the corrugated design of integrated corrugated pipes:
1. Enhanced Strength and Durability:
Corrugations provide structural reinforcement to the pipe, allowing it to withstand external loads and pressure. The corrugated design helps distribute these loads more evenly, preventing damage or deformation of the pipe.
2. Flexibility:
The corrugated pattern gives the pipe flexibility and the ability to bend or conform to the shape of the surrounding environment. This makes it suitable for applications where rigid pipes may be less practical.
3. Expansion and Contraction:
The corrugated design accommodates thermal expansion and contraction, which can occur due to temperature fluctuations. This is especially important in outdoor applications where temperature variations are common.
4. Improved Flow Characteristics:
The corrugated surface can enhance flow characteristics in certain applications. The ridges and valleys create turbulence in the fluid flow, which can help prevent sediment buildup and improve self-cleaning.
5. Reduced Weight:
Corrugated pipes are typically lighter in weight compared to smooth-walled pipes of the same diameter and material. This characteristic simplifies transportation, handling, and installation.
6. Resistance to Soil Movement:
The flexibility and strength of corrugated pipes make them well-suited for applications in which the surrounding soil may shift or settle. The corrugations help distribute soil pressure evenly.
7. Ease of Installation:
The flexibility of corrugated pipes simplifies installation, particularly in applications that require bends or curves. These pipes can often be maneuvered into place without the need for complex fittings.
8. Impact Resistance:
Corrugated pipes can absorb impacts and vibrations more effectively than rigid pipes, making them suitable for applications where external forces may be applied.
9. Reduction of Water Hammer Effects:
In water distribution systems, the corrugated design can reduce water hammer effects, which occur when abrupt changes in fluid flow or pressure create shock waves in the piping system.
10. Vibration Damping:
The flexibility of corrugated pipes can help dampen vibrations, making them suitable for applications where vibration control is important.
The specific corrugation profile and design can vary based on the type of material, intended application, and manufacturer's specifications. Corrugated pipes may have a single-wall or double-wall construction, with double-wall pipes often used in applications where extra protection or insulation is needed.

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