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IntelliCarb Training Manual
Publication Number: TP01071 - 12 - © 2004, IMI Cornelius Inc.
NOTE: The notched water piston on the Ultra Flow and UFB-1 valve.
results in at least one orifice in the sleeve always open. This elimi-
nates pulsating and smooths water flow at higher flow rates.
In operation the liquid flows through the knife–edged orifice in the bottom
of the piston and then out the orifices in the sleeve. The outlet orifice size
in the sleeve is regulated by the position of the piston. In the illustration,
the piston is restricting approximately 1/2 of the outlet orifices.
FIGURE 18
FIGURE 19
The position of the piston inside the sleeve is determined by the upward pressure of the liquid against the
base of the piston and the downward pressure of the spring inside the piston (not shown here). The
pressure of the spring is regulated by the adjusting screw.
If the pressure of the liquid increases, the flow rate through the knife–edged orifice will increase. The
piston is moved upward closing off more of the outlet orifices. The same flow rate is thereby maintained.
Notch in
piston
FIGURE 17
Orifice
Sleeve
Piston
UFB-1 Flow Module
Lower Fluid Pressure BUT
Larger Orifice Openings
Syrup/Water Flow
Knife
edge
Same Volume Of
Syrup/Water Flows
From Orifices
Higher Fluid Pressure BUT
Smaller Orifice Openings
Lower Fluid
Pressure Push-
ing Against Pis-
ton & Spring
Higher Fluid
Pressure Pushing
Against Piston &
Spring