As a key piece of equipment in a fire-fighting system, the correct operation of a fire nozzle is crucial for effectively controlling a fire and protecting lives and property. Understanding the correct use of a fire nozzle is not only an essential skill for firefighters, but also fundamental knowledge for every citizen.
Before delving deeper into how to use a fire nozzle, it's important to understand that not all fire nozzles are created equal. Based on their function and purpose, fire nozzles are primarily categorized into the following types:
- Directional Water Nozzle: Produces a concentrated stream of water with a long range and strong penetration, making it suitable for extinguishing solid fires.
- Spraying Water Nozzle: Also known as a spraying nozzle, this disperses water into a mist, providing wide coverage and excellent heat absorption, suitable for extinguishing flammable gas and liquid fires.
- Multi-Function Water Nozzle: Integrates multiple functions, such as direct and spraying water. The flow pattern can be changed by adjusting a valve, and it is one of the most common fire nozzles on modern fire trucks.

Proper use of a fire nozzle is essential for effective firefighting. Here are the basic steps for using a fire nozzle:
- Connecting the hose: Ensure the hose is properly connected to the water source and securely attached to the nozzle connector.
- Selecting a water flow pattern: Choose the appropriate water flow based on the fire type. For solid fires, use a straight-flow nozzle; for liquid or gas fires, use a bursting nozzle.
- Starting the water supply: Slowly open the valve, avoiding sudden high pressure that can make the hose hard to control.
- Operating the fire nozzle: Hold the nozzle firmly with both hands, maintain a stable stance, and aim at the base of the flames. Adjust spray technique according to the nozzle type.
- Observe the fire closely: Monitor the fire's intensity and adjust water pressure as needed.

In addition to mastering the proper procedures, it's equally important to understand the following safety precautions:
- Maintain a safe distance: Avoid burns from flames or high-temperature steam.
- Preventing Electric Shock: Never use a straight water stream near electrical devices. Use a spraying or misting nozzle instead.
- Regular Maintenance: Fire nozzles and related firefighting equipment should be inspected regularly to ensure reliability in emergencies.
Mastering the proper use of fire nozzles provides valuable self-rescue and mutual aid capabilities in the event of a fire. Furthermore, understanding the firefighting equipment associated with fire nozzles, such as fire hoses and fire extinguishers, can help us more comprehensively respond to fires. Remember, prevention is better than cure. Mastering these basics is a commitment to your own and others' safety.