A coolant expansion tank is a common component found in most manufacturing applications. They are typically connected by a tube to the radiator filler neck, and can serve as a place for excess coolant to be captured when the pressure release valve in the radiator cap gives way. In a properly operating cooling system, the coolant will then be siphoned back into the radiator as the temperature drops. Certain applications can also use the coolant expansion tank as the fill point, in which case it serves as a pressurized part of the system.
What is a Coolant Expansion Tank Used for?
A coolant expansion tank is used as a tool to capture excess coolant to be captured when the pressure release valve in the radiator cap gives way. A coolant expansion tank can also can also serve as the fill point where it serves as a pressurized part of the machine’s coolant system.
A common name for the coolant expansion tank is the overflow tank which describes the tool’s general purpose. If the machine system was completely sealed without a coolant expansion tank, the growing pressure could cause the machine’s hoses to blow out or damage other components. Usually a coolant expansion tank operates under 10psi allowing coolant to drain into the tank.
Coolant Expansion Tank Cleaning & Maintenance
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