When selecting a hump pipe, consider the following: Vehicle and Engine Layout: Determine the number and angle of humps based on engine bay space and routing requirements to ensure a proper fit. Application and Temperature/Pressure Requirements: High-performance or turbocharged engines require high-temperature silicone materials, with clamp usage based on airflow or fluid pressure. Flexibility and Vibration Compensation: Hoses exposed to frequent vibration or thermal expansion benefit from multiple humps for better durability. Material and Brand Selection: High-quality silicone provides heat resistance and long-term stability. DIAO silicone hoses can be customized for hump quantity, size, and clamp options, ensuring reliable sealing and performance.

Silicone Vacuum Hose: Softer but Not Designed for High Pressure Silicone vacuum hose is usually made of pure silicone without any reinforcement layer inside. Because of its simple structure, it is: Softer and more flexible Easier to bend and install Lightweight Suitable for low-pressure or vacuum environments

Vacuum hose is commonly used for: Vacuum systems Small air lines Sensor connections Instrument tubing Wire protection Since there is no fabric reinforcement inside, silicone vacuum hose is not designed for long-term high-temperature or high-pressure coolant systems.

Under continuous hot water circulation or pressure conditions, pure silicone hose may: Expand Become soft Deform Have a shorter service life For this reason, vacuum hose is mainly used for low-pressure or negative-pressure applications rather than pressurized cooling systems.

Environmentally Friendly and Safe: Non-toxic and odorless silicone material, suitable for cleanrooms, laboratories, and medical devices. High Flexibility: Easy to bend and install, ideal for limited spaces or complex pipeline layouts. Aging and Weather Resistance: Not prone to cracking during long-term use, reducing replacement frequency and saving maintenance costs. ⚠️ Note: Silicone vacuum hoses are not designed for high-pressure environments, oil transfer, or long-term use in high-friction conditions.

While there are many silicone hose brands on the market, DIAO stands out with years of production expertise and strict process control, offering customers more reliable solutions: High-Purity Raw Materials: Premium silicone ensures stable airtightness and temperature resistance. Precise Extrusion Technology: Uniform wall thickness and accurate dimensions guarantee consistent performance in vacuum systems.

Silicone Heater Hose: Reinforced for Better Pressure Resistance Silicone heater hose is specially designed for coolant and heating systems. Unlike vacuum hose, heater hose usually contains one or two layers of polyester reinforcement inside the hose wall. Some high-performance hoses may also use aramid reinforcement. The reinforcement layer significantly improves: Pressure resistance Anti-swelling performance Burst strength High-temperature stability

Silicone heater hose is widely used in: Heater systems Radiator connections Engine coolant lines Industrial circulation systems Compared with pure silicone vacuum hose, heater hose is thicker, stronger, and more suitable for long-term high-temperature circulation environments.

Diao specializes in the production of industrial-grade silicone products and provides silicone heater hoses, silicone vacuum hoses, and reinforced silicone hoses for different working conditions. With mature production lines and a professional technical team, the company strictly controls every process from rubber mixing to finished product manufacturing, ensuring stable dimensions, uniform wall thickness, and consistent product quality.