What type of fire pump is commonly used for high-pressure fog nozzles?

Piston pumps are commonly used for high-pressure fog nozzles due to their ability to generate and maintain high pressures necessary for effective fog application. These pumps operate by using a reciprocating piston to move water through a cylinder, delivering water at a consistent, high pressure. This high-pressure output is crucial for fog nozzles, which require increased pressure to break down water into fine mist, maximizing the surface area for heat absorption and improving fire suppression effectiveness.

Additionally, piston pumps can handle varying flow rates while still maintaining the required pressure, making them versatile and reliable for firefighting scenarios where high-pressure delivery is essential. Their effectiveness in situations demanding high pressure, such as those encountered with fog nozzles, confirms why they are the preferred choice in such applications. Other pump types, while useful in different contexts, do not provide the same high-pressure capabilities that are specific to the needs of high-pressure fog nozzles.