Auto AC Hose: Premium Quality for Reliable Car Air Conditioning

The 22mm automotive AC hose serves as a fundamental component in medium-capacity bus air conditioning systems, balancing refrigerant delivery efficiency with spatial constraints in engine compartments. This diameter is particularly prevalent in shuttle buses, minibuses, and medium-duty coaches where cooling load requirements fall between passenger cars and full-size buses. Engineering considerations focus on achieving optimal pressure drop characteristics while maintaining flexibility for complex routing around chassis components. The construction typically involves synthetic rubber inner tubes with barrier layers to prevent refrigerant leakage, reinforced with high-tensile textile braiding or flexible steel wire that withstands operational pressures up to 500 PSI. Real-world applications demonstrate their usage in secondary circuit lines connecting condensers to evaporator units, often requiring specific bend radii to avoid interference with hydraulic lines and electrical harnesses. In regional bus fleets operating in mountainous terrain, these hoses undergo rigorous testing for resistance to altitude-induced pressure variations and temperature extremes from -40°C to 120°C. A documented case study involves cross-country coach operators extending service intervals through upgraded hose specifications with improved abrasion resistance at mounting points. The connection systems employ standardized flare fittings or O-ring face seal configurations that ensure leak-free performance despite constant engine vibration. Maintenance protocols emphasize periodic inspection for signs of exterior cracking, fitting corrosion, or permeability issues that could gradually reduce system efficiency. Our manufacturing process includes 100% pressure testing with helium mass spectrometry to verify leakage rates below industry standards. We offer multiple material grades including ECO-friendly compositions and low-emission variants compliant with international environmental regulations. For specific application requirements and pricing information regarding 22mm bus AC hoses, kindly reach out to our technical sales department for personalized consultation.