What device is used to keep large objects out of an ESP?

The star strainer is specifically designed to prevent large debris from entering an emergency suction pump (ESP) system. Its unique star-shaped openings allow water to flow through while effectively filtering out larger materials that could clog the system, ensuring efficient operation. This type of strainer is particularly useful in naval operations or industrial applications where marine environments may introduce various objects into the water, safeguarding the ESP from damage and maintaining optimal functionality.

Other options might not serve the same specific purpose: a filter screen may be too fine to effectively keep larger objects out, an overflow guard typically serves a different function related to managing fluid levels, and a drainage cover might not provide the same level of protection against large debris entering the system.