Name three common types of shipboard valves and a typical use for each.

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Matching valve types to their function on a ship is about using the right design for the job: a gate valve provides a straight path with a tight shutoff, making it ideal for full isolation of a line. A globe valve, with its design that allows a disc to regulate flow against a seat, gives good throttling and precise control. A check valve is built to allow flow in one direction only, automatically preventing backflow to protect pumps and other equipment.

This is why the trio listed is the best fit: gate valve for fully isolating a line, globe valve for controlling or throttling flow, and check valve for preventing reverse flow. Other options mix roles in ways that aren’t as reliable for typical shipboard needs—ball valves aren’t preferred for throttling, and a relief valve isn’t used to prevent backflow.