A Flow Control is used to regulate the flow of coolant through the radiator. As the engine heats, the coolant temperature increases, causing the ball to expand and move away from its seat, allowing coolant to flow through the valve and into the radiator.Attributes:• Helps to cool down the engine by dissipating heat through the radiator• Manufactured to precise specifications and are built for durability and reliabilityApplications: A Flow Control maintains optimal engine temperature by controlling the amount of coolant that passes through the radiator.