👉 A circuit fluid, also known as coolant or working fluid, is a specialized liquid or gas used in various mechanical systems to transfer heat from one location to another. It circulates through a closed loop, absorbing heat from components like engines or electronic devices and dissipating it to a heat exchanger or radiator, where the heat is released into the environment. Circuit fluids are chosen for their thermal conductivity, stability under varying temperatures, and non-corrosive properties to ensure efficient heat transfer and system longevity.
