Selectable Gallonage Nozzle

This kind of nozzle lets firefighters change the spray pattern by twisting the head. Firefighters can switch from a wide water fog to cool a large fire to a narrow jet that can cut through flames to get close to the fire. This flexibility is useful for tackling different kinds of fire.

With this kind of nozzle, water always comes out at the same pressure, no matter how much the firefighter opens the valve. This helps ensure that the water as it comes out of the nozzle always has the same force. Even if the hose gets pulled or twisted, the water will still have steady pressure for good control.

This nozzle spreads the water into tiny droplets. The droplets make a cool mist that can take heat out of a fire better than a solid water stream. Fog nozzles are often used in small places, like kitchens, where the water needs to cover the fire well.

This nozzle is designed to deliver a set, or fixed, amount of water each minute, no matter what. Even if the fire conditions change, like the hose pressure going up or down, the water flow stays the same. This allows engineers to keep the fire truck's pumps set to send out the right flow no matter what happens.

This one is really neat because it adjusts itself. The nozzle automatically changes the water pattern based on how tightly or loosely the firefighter holds the switch. This makes it easy for the engineer because the nozzle does the adjusting without any extra work. However, some fog nozzles also contain an automatic feature that allows for diverse spray patterns to be emitted through the same piece of equipment.