👉 An expansion fluid, also known as an expansion tank or pressure relief tank, is a crucial component in various mechanical systems, particularly in engines and hydraulic systems. Its primary function is to accommodate the volume changes in fluids caused by temperature fluctuations, ensuring that the system maintains optimal pressure and prevents damage. When a fluid heats up, it expands, and similarly, when it cools down, it contracts. Without an expansion fluid, these volume changes could lead to excessive pressure buildup, potentially causing leaks, component failure, or even catastrophic system damage. By providing a reservoir for these volume shifts, expansion fluids help maintain system integrity and reliability.
