Alfa Laval FrontLine WideGap 100, Instruction Manual, Page: 17 / 30

Operation
Unit in operation
Adjustments of flow rates should be made slowly in order to protect the system against sudden
and extreme variations of temperature and pressure.
During operation, check that media temperatures and pressures are within the limits stated on
the name plate and the PHE drawing.
Warning!
In case of failures that endanger safety operation, turn off the flow to the heat exchanger
in order to decrease the pressure and stop heat transfer.
Shut-down
Note!
If several pumps are included in the system, make sure you know which one should be
stopped first.
Step 1
Slowly close the valve controlling the flow rate of the pump you
are about to stop.
Step 2
When the valve is closed, stop the pump.
Step 3
Repeat Step 1 and Step 2 for the other side for the second
media.
Step 4
If the heat exchanger is shut down for several days or longer, it
should be drained. Draining should also be done if the process
is shut down and the ambient temperature is below the freezing
temperature of the media. Depending on the media processed,
it is also recommended to rinse and dry the heat exchanger
plates and connections.
Note!
Avoid vacuum in the heat exchanger by opening the
vent valves.
Document ID Language Edition
3490017599 EN 2016-06 Instruction Manual - Plate Heat Exchangers 17
EN