Spray Nozzles Spray Control Spray Analysis Spray Fabrication

Cooling/Continuous Casting
CasterJet Nozzles – How They Work
CasterJet nozzles use an atomization process based on a unique impingement
principle involving three factors:
• A high velocity stream of water forced into an expansion chamber
• A target bolt, against which the water stream is shattered
• An air stream rushing past the target bolt to further break up the water stream
A recent design enhancement in the expansion chamber results in even more efficient
mixing. CasterJet nozzles now provide more performance with a 25% reduction
in air consumption. This means new caster lines may require fewer or smaller
compressors. On existing caster lines, some compressors can be turned off. This
translates into lower energy costs and longer compressor life.
The nozzle’s target bolt also provides an even greater break-up efficiency than
before and are now press-fit into the CasterJet nozzle body.
CasterJet nozzles offer a turndown ratio of 25:1. Flow can be reduced using water
pressures as low as 5 psi (.3 bar) without a loss in performance. Wider operating
ranges and consistent drop size distribution across the spray pattern allow greater
flexibility in line speeds and the ability to run additional grades of steel.
Easy to Maintain
CasterJet extension tubes feature broached connections for detachability with a
ferrule for connecting and a locating pin for safety. Because tubes are detachable,
a wide range of lengths can be used. And, when breakouts occur, maintenance is
easier – simply replace the tube and tip instead of the entire nozzle assembly.
The CasterJet spray tip, with a new snap ring assembly, is even easier to remove
for fast and simple changes. The spray tips are self-aligning and the entire nozzle
assembly features smooth, clean passages. Nozzle wear is low due to generally
low operating pressures.
Specifications:
• Operating range: 2 to 12 gpm (7.6 to 45.4 l/min) at 45 psi air and 100 psi liquid
(3 bar air and 7 bar liquid)
• Spray angles: 60° to 135°
• Materials: Stainless steel wear components including spray tip orifices and target
bolts. Brass bodies and extensions
• Inlet connection: 3/8” to 1/2”
IMPROVED EXPANSION CHAMBER
REDUCES AIR CONSUMPTION
RE-DESIGNED TARGET BOLT
IMPROVES BREAK-UP EFFICIENCY
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