Welcome to Hebei diao Rubber Products Co., Ltd.
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Areas near the turbocharger and exhaust manifold can reach extremely high temperatures. DIAO uses an automotive-grade platinum-cured silicone compound, offering: Continuous temperature: –50°C to +220°C Peak temperature: up to +250°C Excellent resistance to coolant, hot air, and aging This makes DIAO hoses ideal for turbocharger systems, intercoolers, cooling circuits, and hybrid thermal management systems.
DIAO silicone hoses are manufactured using a hand-wrapped, multi-layer composite structure, providing superior strength and long-term stability. Available reinforcement options include: 1–5 layers of polyester fabric reinforcement/Aramid fabric for high-pressure or high-heat applications Custom wall thickness Anti-collapse structures for vacuum conditions High-boost options for turbocharged engines This structure ensures excellent burst pressure performance and durability under heavy vibration and pressure cycles.
During driving, the engine, radiator, thermostat housing, and turbo components all vibrate at different frequencies. A curved hose design naturally absorbs displacement and prevents: Joint loosening Stress concentration Cracking at the hose ends DIAO optimizes hose curvature and fabric layout to enhance flexibility while maintaining structural stability over long service life.
DIAO supports global OEM projects with: Rapid prototyping Small-batch sample production 3D data integration Customized colors, logos, and wall thickness Full vehicle platform development support This makes DIAO a strong partner for automakers aiming to shorten development cycles and enhance system reliability.
Silicone hump hoses are also used in PCV (positive crankcase ventilation) or EGR (exhaust gas recirculation) systems, ensuring stable airflow even under high-load and high-temperature conditions. Common installation points include turbocharger outlets, intercooler inlets, intake manifold connections, and coolant passages between water pumps and radiators.
As automotive technology continues to advance, engine components are facing higher demands for performance and reliability. Among them, automotive silicone hump hoses have become essential parts of modern engine systems due to their flexibility and high-temperature resistance. A “hump hose” refers to a silicone hose with one or more raised or curved sections, designed to improve flexibility, absorb engine vibrations, and accommodate thermal expansion, ensuring stable engine operation.
DIAO has continuously adopted international advanced hose production lines and technologies over the years, purchased international standard production and testing equipment, and established its own rubber R&D center, while its products have passed a series of authoritative certifications such as SGS and FDA. With the enterprise tenet of professional production of products and sincere service to customers, we have become one of most strongest in this field.
Boost Systems (Turbocharged or Supercharged Engines) Hump Hoses are commonly used in intake piping, connecting turbochargers, intercoolers, and intake manifolds. The hump sections prevent the hose from collapsing or interfering with other components under heat and vibration, maintaining smooth airflow.
Cooling Systems In some models, hump hoses serve as water or coolant hoses. Their raised sections provide extra flexibility to reduce stress from vibrations and thermal expansion, minimizing the risk of leaks or hose failure. Airflow and Exhaust Bypass Systems
Our factory specializes in the production and supply of high quality silicone hoses, food grade silicone hoses, medical silicone hoses, fuel hoses, radiator hoses, air rubber hoses, EPDM sealing strips, spiral protective covers and silicone plates and other trucks, automotive rubber accessories (support OEM and ODM).
Our address
Wangguanzhuang Town, Qinghe County, Xingtai City, Hebei Province,China