Cornelius Cold Beverage Dispenser manual Notch in piston

IntelliCarb Training Manual

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.

Notch in piston

FIGURE 17

UFB-1 Flow Module

Orifice

Sleeve

Piston

FIGURE 18

Lower Fluid Pressure BUT	Higher Fluid Pressure BUT
Larger Orifice Openings
	Smaller Orifice Openings

Same Volume Of

Syrup/Water Flows

From Orifices

		Lower Fluid	Higher Fluid
Knife		Pressure Push-	Pressure Pushing
edge		ing Against Pis-	Against Piston &
		ton & Spring	Spring
	Syrup/Water Flow

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.

Publication Number: TP01071 - 12 - © 2004, IMI Cornelius Inc.