Type E Four Layer AC Hose China Factory and Leading Automotive HVAC Suppliers
The Type E four-layer A/C hose is a premium-engineered solution specifically designed for the rigorous demands of automotive air conditioning systems. Built with a sophisticated multi-layer architecture, this hose ensures maximum efficiency in transporting refrigerants while maintaining structural integrity under extreme pressure and temperature fluctuations in cars, trucks, and other commercial vehicles.
Engineered for excellence, our A/C hoses are compatible with industry-standard refrigerants including R134a, R404a, and R12. By integrating advanced rubber compounding technology, KEMO provides a product that balances flexibility with extreme durability, reducing maintenance downtime and enhancing the overall cooling performance of the vehicle's HVAC system.
Detailed Parameters
| Working Pressure | 3.5 Mpa (508 Psi) | Burst Pressure | Min 18 - 22 Mpa (2610 - 3190 Psi) |
|---|---|---|---|
| Inner Diameter (I.D) | Φ8mm to 28.5mm (Range) | Outer Diameter (O.D) | 15.2mm to 41.0mm (Range) |
| Permeation Rate | 1.6 kg/㎡/year | Compatible Refrigerants | R134a, R404a, R12 |
| Wall Thickness | 3.5mm to 6.3mm | Min Bend Radius | 55mm to 85mm |
| Construction | Type E Four-Layer Design | Application | Automotive HVAC Systems |
Key Advantages
Low Permeability
Advanced four-layer barrier technology prevents refrigerant leakage, ensuring system efficiency and environmental protection.
Aging Resistance
Specially formulated rubber compounds resist degradation over time, extending the service life of the automotive cooling system.
Pulse Resistance
Engineered to withstand high-frequency pressure surges and pulses common in compressor operations without failure.
Ozone Resistance
Superior protection against atmospheric ozone and UV exposure, preventing surface cracking in harsh outdoor environments.
Shock Absorption
High elasticity and structural strength allow the hose to absorb mechanical shocks and vibrations during vehicle operation.
OEM/ODM Support
Custom design and development services backed by rigorous testing reports and expert engineering from industry veterans.
Product Gallery
Management Platforms
Versatile Packaging
Offering PVC film, color woven bags, pallets, cartons, and spool packing to meet diverse logistics needs.
Engineering Expertise
Technical leadership with experience from Goodyear and Parker, ensuring top-tier manufacturing standards.
R&D Innovation
Collaborating with leading research institutions to develop new materials and advanced production processes.
Quality Testing
In-house ability to perform rigorous performance experiments and provide detailed testing reports.
OEM/ODM Capability
Comprehensive support for new product design and development tailored to foreign customer specifications.
Market Leadership
Ranked as a Top 3 manufacturer in China with over 15 years of deep domestic and international experience.
Investment Return Comparison
| Performance Metric | Standard A/C Hose | KEMO Type E Hose |
|---|---|---|
| Service Life | Moderate | Extended (Aging Resistant) |
| Leakage Rate | Standard | Ultra-Low (Four-Layer) |
| Pressure Stability | Typical | High Pulse Resistance |
| Environmental Adaptability | Limited | Ozone & Shock Resistant |
| Customization Support | Basic | Full OEM/ODM Engineering |
Frequently Asked Questions
The four-layer construction significantly reduces refrigerant permeation, increases burst pressure resistance, and provides superior protection against aging and ozone, ensuring a more reliable cooling system.
Our hoses are fully compatible with R134a, R404a, and R12 refrigerants, making them suitable for a wide range of automotive and commercial vehicle applications.
Yes, we offer comprehensive OEM and ODM services. We can design, develop, and test hoses to your specific size and performance requirements, providing full testing reports upon request.
Pulse resistance prevents the hose from fatiguing due to the constant pressure spikes from the AC compressor, which significantly reduces the risk of premature bursting or leaking.
We provide multiple professional packaging options including transparent PVC film, color woven bags (Blue/White/Green/Yellow), pallets, cartons, and spool packing.
With over 15 years of experience and a team comprising former engineers from Goodyear and Parker, we combine top-tier technical expertise with advanced R&D to be a Top 3 manufacturer in China.
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