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Description:
The
Cascade Nozzle is the single most popular effect used in commercial and
architectural fountains through modern times. They
can be used in
a wide variety of ways to achieve spectacular effects. Whatever your plan or
inspiration calls for, the Cascade
can probably fill the bill. A water entraining venturi type
nozzle, the Cascade augments its spout effect by adding water volume
from the pool. In doing so, a very heavy, powerful effect is
achieved with little aeration.
Cascade
nozzles are used widely in architectural fountains, due to their high
visibility and good wind resistance, exhibiting a
visual and audible impact suitable for large pools
and outdoor applications where noise masking water effects are desired. The
Cascade is water level dependent, and requires a
controlled water level. In addition, opaque water walls are easily achieved
when several nozzles are placed in close proximity.
Nozzle Performance
Chart:
#50T
to #90T #110T
to #130T
Nozzle Dimensions:
See Other Photos: 50T
70T 90T
110T
130T
Technical description:
- All Cascade nozzles are
water level dependent venturi types. The surrounding pool water is
drawn by a venturi effect through the bottom of the nozzle.
- These nozzles can be
submerged in water, but maximum efficiency is achieved if the water
level is held to the dimensions given.
- If placed in fountains
of more than one water level, check valves should be installed inline
with the nozzle. (The discharge orifice of the Cascade nozzle is actually under
water, and if installed in an upper pool of multi-level fountains,
can cause the water of the upper level to drain back through the
display pump to the lower level.
- This type of nozzle
can set up a resonant wave action in certain pools. If an undesired
wave action occurs, it can be eliminated by adding a copper surge tube around the nozzle
locations. This is a copper tube, about 6" in diameter, mounted from water level to about 1" above the
pool floor.
- All Cascade nozzles
are NPT threaded.
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