Floats in pumping systems can be used for which purpose?

In pumping systems, floats serve a crucial role by starting or stopping pumps based on the fluid levels detected. When the fluid reaches a certain height, the float rises and activates a switch, which can either turn the pump on or off. This automatic control helps prevent issues like overflow or dry running of the pump.

The other functions mentioned, such as measuring fluid levels or regulating pump speed, can involve different devices like level sensors or variable speed drives, respectively. Filtering impurities is typically handled by separate filtration systems rather than by floats. Thus, the primary function of floats in this context revolves around the control of pumps based on fluid level changes.