High Velocity Nozzle

High Velocity Water Spray Nozzles are internal swirl plate type open
nozzles designed for use in fixed water spray or deluge system for
the fire protection application.

These nozzles produce solid uniform and dense core of high
velocity water spray to effect fire control. Nozzles are normally
used to cool the surface as well as for extinguishment. Nozzles are
typically used for Deluge protection of special hazards such as
oil filled transformers, switch-gear, chemical process equipments,
conveyor system, diesel engines, flammable liquid storage areas
and similar hazards. The minimum desirable pressure to achieve a
reasonable spray pattern is 2.1 Bar (30 psi).

The water distribution pattern is as shown in the graph in following
pages giving maximum effective axial distance from the nozzle.
The spray pattern shown is with indoor application. The system
designer must consider wind velocity while designing the system
for outdoor application.

The spray pattern is drawn considering maximum of 0.6m/s. Field
obstruction if any affecting the spray pattern of the nozzle must be
considered. The nozzle may be oriented in any position as deemed
necessary to cover the hazard.