What is the primary purpose of the Navy vari-nozzle?

The primary purpose of the Navy vari-nozzle is to control water flow and pattern. This device is designed to provide firefighters and damage control personnel with the ability to adjust the spray pattern and the flow rate of water being deployed. By doing so, they can adapt to various firefighting scenarios, whether that means creating a fine mist for protective cooling or a solid stream for direct attack on a fire.

The versatility of the vari-nozzle is crucial in emergency situations where different types of fires may require different extinguishing tactics. Its adjustable nature allows for effective management of the water supply to optimize firefighting efforts, making it an essential tool onboard Navy vessels.