Fuel Hoses
- Fuel hoses withstand continuous exposure to gasoline or diesel and the high heat from the engine.
- Common materials: Fuel-resistant rubber (NBR) or advanced silicone.
- Performance tests include resistance to bursting, leakage, and expansion under pressure and heat.
Cooling System Hoses
- Cooling hoses carry coolant or antifreeze between the engine and the radiator.
- They must withstand large temperature changes from -40°C to +120°C.
- Their design sometimes includes wire or fabric reinforcement to reduce expansion and prevent leakage.
Key Standards
- ISO 1402: Measurement of Pressure Resistance Internal.
- ISO 4672: Temperature Resistance Testing.
- Verification of Crack Resistance and Chemical Agents.
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