Customized Automotive Flexible Air Conditioning Hose Automotive Rubber Hoses
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Flexible automotive air conditioning hoses are key components in a vehicle's thermal management system, acting like the "blood vessels" of the car, responsible for safely and efficiently transporting refrigerant and compressor oil between components such as the compressor, condenser, and evaporator.
They are not simply rubber hoses, but precise components made of multiple composite materials. Their typical structure includes: an inner layer in direct contact with the medium (usually made of NBR or HNBR) to ensure excellent sealing and chemical compatibility; a middle high-strength fiber braided reinforcement layer; and an outer weather-resistant protective layer (CR) to withstand high temperatures, ozone, oil contamination, and wear within the engine compartment. To meet increasingly strict environmental regulations, modern vehicles commonly use low-permeation rubber hoses with built-in plastic barriers such as polyamide (PA), which can reduce refrigerant permeability by over 90%.
Their core value lies in using their own flexibility to effectively absorb and isolate vibrations generated by the compressor and engine, preventing stress concentration from causing hose rupture or joint leakage, thereby ensuring the reliability of the entire air conditioning system and the comfort of passengers.
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