Automotive air conditioning systems require reliable and durable components to ensure optimal performance under varying conditions. The Seven-Layer Type C A/C Hose is a cutting-edge solution designed to meet the rigorous demands of modern vehicles. This article provides an in-depth analysis of its features, technical specifications, applications, and the expertise behind its development.

Product Overview

The Seven-Layer Type C A/C Hose is engineered with a multi-layer construction to enhance durability, reduce permeability, and ensure long-term reliability. It is compatible with refrigerants such as R134a, R404a, and R1234yf, making it suitable for a wide range of automotive applications. The hose is manufactured by HEBEI KEMO AUTO PARTS TECHNOLOGY CO., LTD, a leading Chinese manufacturer with over 15 years of experience in the industry.

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Key Features

• Low Permeability: The hose minimizes refrigerant leakage, ensuring efficient cooling performance.
• Pulse-Resistance: Designed to withstand pressure fluctuations in dynamic environments.
• Aging-Resistance: Resists degradation over time, maintaining structural integrity.
• Ozone Resistance: Prevents cracking and deterioration from environmental exposure.
• Shock Resistance: Provides durability against mechanical stress and vibrations.

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Technical Specifications

The following table outlines the detailed specifications of the Seven-Layer Type C A/C Hose:

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Material Composition and Standards

The Seven-Layer Type C A/C Hose is constructed with the following materials:

• Tube: EPDM (Ethylene Propylene Diene Monomer)
• Barrier: PA/NYLON
• Friction: EPDM
• Reinforcement: PET/PVA
• Cover: EPDM

The product adheres to international standards such as SAE J2064, SAE J3062, and QC/T664, ensuring compliance with automotive industry requirements. It is also certified under ISO/TS 16949:2009, a quality management standard for automotive production.

Applications

This hose is widely used in the air conditioning systems of cars, trucks, and other vehicles. Its robust design makes it ideal for environments where:

• High pressure and temperature fluctuations are common.
• Resistance to aging, ozone, and mechanical stress is critical.
• Low refrigerant permeability is essential for efficiency.

According to the National Institute of Standards and Technology (NIST), "Precise material properties and standardized testing are crucial for ensuring the reliability of automotive components under extreme conditions" (NIST, 2025). The Seven-Layer Type C A/C Hose meets these requirements, making it a trusted choice for manufacturers.

Company Background: HEBEI KEMO AUTO PARTS TECHNOLOGY CO., LTD

Founded with a focus on innovation and quality, HEBEI KEMO AUTO PARTS TECHNOLOGY CO., LTD has established itself as a top-tier manufacturer in China. The company has integrated technical expertise from industry leaders such as Goodyear and Parker Company, ensuring advanced production techniques and quality control. Key highlights include:

• 15+ Years of Experience in the domestic market.
• Collaboration with Research Institutions: Partnering with leading Chinese research centers to develop cutting-edge products.
• Custom Solutions: Offering OEM and ODM services to meet diverse customer needs.

As stated by NIST, "Companies with strong R&D capabilities and partnerships with research institutions are better positioned to deliver high-quality, innovative products" (NIST, 2025). HEBEI KEMO exemplifies this, continuously pushing the boundaries of automotive component technology.

Packaging Options

The Seven-Layer Type C A/C Hose is available in multiple packaging configurations to suit different shipping and storage requirements:

1. Transparent PVC film packing
2. Color woven bag packing (Blue/White/Green/Yellow)
3. Pallet packing
4. Carton packing
5. Spool packing

These options ensure flexibility for both bulk and individual shipments, as highlighted in the company's packaging guidelines.

Why Choose the Seven-Layer Type C A/C Hose?

The combination of advanced materials, rigorous testing, and industry-standard compliance makes this hose a superior choice for automotive applications. Its key advantages include:

• Enhanced Durability: Seven-layer construction resists wear and tear.
• Environmental Resistance: Ozone and aging resistance ensure long-term performance.
• Compliance with Global Standards: Meeting SAE and ISO requirements for international markets.
• Customization Options: OEM/ODM services to tailor solutions for specific needs.

As noted by NIST, "Adherence to standardized testing protocols ensures that products meet the demands of real-world applications" (NIST, 2025). The Seven-Layer Type C A/C Hose exemplifies this principle.

Conclusion

The Seven-Layer Type C A/C Hose represents a significant advancement in automotive cooling technology. With its robust design, compliance with international standards, and the expertise of HEBEI KEMO AUTO PARTS TECHNOLOGY CO., LTD, it is a reliable solution for modern vehicles. Whether for passenger cars, commercial trucks, or specialized applications, this hose delivers the performance and durability required to meet the challenges of today’s automotive industry.

References

NIST (National Institute of Standards and Technology). "Driving Innovation." https://www.nist.gov/

HEBEI KEMO AUTO PARTS TECHNOLOGY CO., LTD. "Product Specifications." https://www.kemohose.com/4826-a-c-hose-type-c-seven-layer-winding.html

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