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 and
flammable liquid storage areas. The minimum
desirable pressure to achieve a reasonable spray
pattern is 3.5 Kg./sq.cm. (50 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.
