An article about the definition of nozzle. A nozzle is often a pipe or tube of varying cross sectional area, and it can be used to direct or modify the flow of a fluid (liquid or gas). Nozzles are frequently used to control the rate of flow, speed, direction, mass, shape, and/or the pressure of the stream that emerges from them.
An article about the fire-hose nozzle. In fire fighting, it is a device for generating and directing a stream of water, foam, powder, or other fire-extinguishing substance. The simplest type of nozzle is a tube with a terminal attachment that adjusts the stream. Fire-hose nozzles can generate narrow or dispersed streams, and they make it possible to stop the flow without shutting off the supply
An article about the different types of fire nozzle. Fire hose nozzles are specially designed appliances that deliver an optimal amount of water at a given rate of pressure. There are a variety of nozzles that come in different shapes and sizes. However, they all operate basically the same, using a simple shutoff valve to control the flow of water. Knowing which nozzle to use is dependent upon the type of fire and suppression needs at the scene.
An article about choosing the right nozzle for the job. The nozzle is an important part of the firefighting system. The selection of the nozzle to be used by the department should depend upon the tactics and performance required. You should decide what you want your nozzle to do before making your decision.
An article about the different nozzles that is used for fire fighting.
An article about the effective and efficient fire streams. You can say that it takes gallons (or liters) to overcome Btu (or Joules), but the rate at which energy is absorbed by a fire stream must overcome heat release rate (energy released/unit of time). This concept points to the need for a higher flow rate when the heat release rate from a fire is larger. This leads to another common fire service saying: Big Fire, Big Water. While this is not completely incorrect, it is a bit misleading as it does not account for the efficiency of the fire stream in absorbing energy. Not all of the water that leaves the nozzle absorbs the same amount of energy.
An article about the nozzle performance, classification and characteristics.