Use HD’s non-automatic Medium Velocity (MV) water spray nozzles in deluge water spray systems to give special hazard fire protection. Small droplets of water are discharged via an external deflector in a solid cone shaped pattern that uniformly covers the surfaces to be protected. This action cools the surfaces (whether vertical, horizontal, curved or irregular), prevents excessive heat absorption from fire and averts structural damage or spread of fire.

To suit different water spray systems, MV nozzles are available in several combinations of orifice sizes and spray angles.