parts of a radiator cap
A radiator cap is a crucial component of a vehicle's cooling system, comprising several essential parts that work together to maintain optimal engine temperature. The main parts include the pressure valve, vacuum valve, spring mechanism, and sealing gasket. The pressure valve is designed to maintain a specific pressure level within the cooling system, typically ranging from 13 to 16 PSI, which raises the boiling point of the coolant and prevents overheating. The vacuum valve serves as a safety feature that allows air to enter the system when the engine cools down, preventing a vacuum from forming that could potentially collapse radiator hoses. The spring mechanism works in conjunction with the pressure valve, providing the necessary tension to maintain the desired pressure levels while allowing excess pressure to be released when needed. The sealing gasket ensures an airtight seal between the cap and the radiator filler neck, preventing coolant leakage and maintaining system pressure. These components are precision-engineered to work together seamlessly, utilizing advanced materials that can withstand high temperatures and pressure variations while ensuring long-term durability and reliable performance.