The Biphasic Nozzle: The Innovation Making Waves at the July 14th, 2025 Parade

During the military parade on July 14th, 2025, the biphasic nozzle (formerly known as the ZELUP nozzle) caught everyone’s attention and generated significant interest in the press. This major innovation is revolutionising firefighting techniques thanks to its advanced technology and numerous operational advantages.

Cutting-edge technology serving firefighters

The biphasic nozzle is revolutionising extinguishing devices thanks to a unique process: biphasic spray flow. Firefighters who took part in the tests unanimously agree: this new nozzle is safer, more efficient, and more environmentally friendly. It propels fine water droplets using a high-speed air flow.

This process significantly reduces the flow rate, consuming 6 to 8 times less water than a traditional nozzle. This powerful and eco-friendly biphasic system offers:

- Increased efficiency for rapid flame extinction,

- Significant reduction in water consumption, up to eight times less than a conventional nozzle,

- Enhanced safety for firefighters by reducing the risk of burns,

- Versatility for use in various fire scenarios, particularly in dense urban environments.

Strong media visibility and commitment

The biphasic nozzle enjoyed exceptional visibility during the July 14th parade, with numerous reports in the press and on national television channels. This public recognition highlights the importance of this innovation for civil safety.

Moreover, the collaboration between the designers of the biphasic nozzle and the Paris Fire Brigade (BSPP) demonstrates the importance of public-private partnerships in developing solutions tailored to firefighters’ real needs.

This innovation perfectly aligns with LEADER Group’s commitment to supporting emergency professionals with ever more efficient and safer equipment.