What does a stored-pressure water extinguisher contain?

A stored-pressure water extinguisher contains water under pressure. This type of extinguisher is specifically designed to combat fires involving ordinary combustibles, such as wood, paper, and textiles. The mechanism operates by having water stored in a container that is pressurized, allowing it to be effectively expelled through a nozzle when the extinguisher is activated.

The design allows for a direct stream of water to be delivered to the fire, helping to cool the flames and extinguish the fire by removing heat. It is essential for responders to use the correct type of extinguisher based on the materials involved in the fire, and stored-pressure water extinguishers are appropriate for specific classes of fires, reinforcing their utility in various firefighting scenarios.