What is the fog nozzle?

Ordinary piece of firefighting equipment, fog nozzle mechanically breaks the water into fine droplets and emits them like fog. Automatically or manual nozzle setting creates spray properties that differ in length and width. Trained firefighters use each fog jet spray under different conditions.

Firefighters usually use fog nozzles with hand hoses. Water travels through these hoses for rates that can range from 60 to 180 gallons (227 to 681 liters) per minute. The power of water has hit a special diffusion element inside the fog nozzle turns droplets into pairs similar to particles. The steam produced resembles a humid fog and covers a larger surface area than one stream of water.

The automatic fog nozzle generally adjusts the length and width of the spray emitted based on water pressure. Manual nozzles have a handle that firefighters use to regulate the spray pattern regardless of water pressure. The nozzle may be adjusted to emit a direct water stream, a narrow oblique cone or a wide sloping cone. Narrow angleY can also contain a central stream of water. The wide -angle fog not only covers more surface surfaces, but also acts as a shield to protect the advancing firefighters.

The fog jet spray focuses on the strategic areas of the burning room. The fog absorbs heat generated by fire and becomes steam, moves the oxygen required by fire and extinguishes flame. The fog spray nozzle can be used indirectly or as a combined method of extinguished fires.

Indirect method requires the ceiling temperatures to be at least 1,000 degrees Fahrenheit (537 degrees Celsius). This amount of heat ensures that the fog emitted from the hose nozzle is immediately converted to steam. Ideally, the room should be closed to keep the steam at this place. Lack of ventilation more prevention air from entering the environment and refueling fire. The combined method involves cooling the area and turning off the flames simultaneously.

using a fog nozzle, firefighters generally focus the spray around the perimeter of the room. The fog hits and cools the ceiling, walls and floor because the steam generated the flame. The central stream of water can also be used to cool down hot steam and muthers the flames at the source.