What is one common type of pressure relief valve?

A spring-loaded valve is a common type of pressure relief valve utilized in various systems to manage pressure levels safely. These valves are designed to open automatically when the pressure exceeds a certain set point, allowing excess pressure to be released and thereby preventing potential damage to the system or components.

The operation of a spring-loaded valve hinges on the applied pressure overcoming the force exerted by a spring. Consequently, when the system's pressure reaches a predefined limit, the valve opens, enabling fluid to escape and reduce pressure. This mechanism is crucial in applications such as boilers, pressure vessels, and piping systems, where maintaining safe operating pressures is imperative for safety and operational integrity.

In contrast, other types of valves listed, such as float valves, ball valves, and gate valves, are designed for different functions, such as controlling the flow of fluid or isolating sections of a system rather than relieving pressure. Their primary mechanisms do not focus on automatic pressure management, which distinguishes the spring-loaded valve as the right choice in this context.