Chapter 2. Safety
PELLERIN MILNOR CORPORATION
2.2.2.2.
Close the line.
—If the pump does not always close the line when it is off, use a shutoff valve
to do this.
2.2.2.3.
Do not let a vacuum occur.
—Supply a vacuum breaker in the chemical line that is higher
than the full level of the tank.
2.2.2.4.
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.
2.2.2.5.
Put the chemical tube fully below the machine inlet.
—It is also necessary that
there is no pressure in the chemical tube or tank when the system is off.
Figure 5
shows this
configuration.
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
2.2.2.6.
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.
— End of BIWUUI06 —
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