What is a common application of a pressure-reducing valve?

A pressure-reducing valve (PRV) is commonly used to protect irrigation systems. These valves regulate the supply of water by reducing the pressure from a higher source to a safer, lower pressure that is more suitable for irrigation applications. If high pressure were to be applied directly to an irrigation system, it could cause damage to the components, such as hoses and sprinkler heads, and result in inefficient watering.

By controlling the pressure, a PRV ensures that the irrigation system operates efficiently and effectively, preventing leaks, bursts, and excessive wear on the system components. This contributes to the longevity of the system and helps manage water usage more effectively.

Other options, while they relate to water systems, do not accurately describe the primary function of a pressure-reducing valve in the context of irrigation.