What is the purpose of a strainer in fluid systems?

A strainer serves a critical role in fluid systems by removing debris and contaminants from liquids. This function is essential for protecting other components within the system, such as pumps, valves, and filters. When contaminants like dirt, rust, or other particles enter the fluid stream, they can cause wear and tear on equipment, leading to malfunctions, reduced efficiency, and potential failures. By filtering these unwanted materials out of the fluid before it reaches sensitive components, strainers help maintain system integrity and extend the operational lifespan of the equipment.

The other options address functions that do not align with the primary purpose of a strainer. While enhancing pressure, cooling fluids, and measuring flow rate are crucial aspects of fluid systems, they are handled by different types of devices or components.