11
VM 623.0004 GB/07.00 – Ident–Nr. 550 298
6.3 Shutdown
S Drive
Switch off the motor. Make sure the pump runs down
smoothly and evenly.
S Inlet line
Close stop valve in inlet line.
S Pressure pipeline
If a non–return valve is installed in the pressure pipe-
line, the stop valve can remain open. Without non–
return valve, the stop valve must be closed.
6.4 Measures in the event of standstills
Pumped liquid
...
Measures in the event of
brief standstill
Measures in the event of
prolonged standstill
May solidify
+
has a preservative effect À
Hear or drain pump
Drain pump
May solidify
+
does not have a preserva-
tive effect
Hear or drain pump
Drain and preserve pump
À
Does not solidify
+
has a preservative effect
À
– –
Does not solidify
+
does not have a preserva-
tive effect
–
Drain and preserve pump
À
À See section 3.3