Milnor MWF18J8, Installation Manual, Page: 23 / 35

Pellerin Milnor Corporation
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Close the line.
— If the pump does not always close the line when it is off, use a shutoff
valve to do this.
Do not let a vacuum occur.
— Supply a vacuum breaker in the chemical line that is
higher than the full level of the tank.
Flush the chemical tube with water.
— If the liquid that stays in the tube between
the pump and the machine can flow in the machine, flush the tube with water after the pump
stops.
Put the chemical tube fully below the inlet.
— It is also necessary that there is no
pressure in the chemical tube or tank when the system is off.
Figure 5. A Configuration that Prevents Flow in the Machine When the Pump is Off (if the chemical
tube and tank have no pressure)
Schematic View
Legend
I... Chemical inlet on the machine
L... Chemical tube
P... Pump
T... Chemical tank
Prevent leaks.
— When you do maintenance on the chemical pump system:
• Use the correct components.
• Make sure that all connections are the correct fit.
• Make sure that all connections are tight.
Important Installation Precautions