4.
For pumps with hot conveyed medium: Ensure temperature change of less
than 2 K/min.
6.2.3 Switching off
NOTICE!
Property damage due to voltage peaks!
–
Only switch the unit off using the EMERGENCY STOP button in
an emergency!
1.
Switch off the motor. Maintain the following functions, if present:
n
for double mechanical seals: Sealing pressure, until pump is pressure-
free (
manufacturer's data)
n
Sealing system
n
Cooling water supply until the pump operating temperature has
dropped below 100 °C.
2.
Close the inlet and outlet side valves.
3.
Close the outlet side valves.
4.
If present and permitted in the process: switch off heating.
n
The conveyed medium must not solidify.
5.
Open the drain screw until the pump is depressurised.
6.
Screw in and tighten the drain screw.
7.
Clean / sterilise the pump, if necessary (
Chapter 6.3 ‘Cleaning/sterilizing
).
6.3 Cleaning/sterilizing the pump
SLH and SLH-S series pumps can be cleaned/sterilised without dis-
mantling.
Determine CIP medium and CIP temperature in accordance with the
operating requirements.
NOTICE!
Damage to pumps, hoses and fittings with pressure testing or
rinsing!
–
When carrying out pressure tests or rinsing do not expose
pumps, hoses or fittings to impermissible pressure.
–
Separate pumps, hoses or fittings from the system in advance,
if necessary.
Operation
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Type SLH-4U
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JP Rev. 1
