Alfa Laval FrontLine WideGap 100, Инструкция по эксплуатации, Страница: 15 / 30

Operation
Operation
Start-up
During the start-up, check that there are no visible leakages from the plate pack, valves or
piping system.
Caution!
Before pressurizing the heat exchanger, it is important to ensure that the temperature of
the heat exchanger is within the temperature range as stated in the PHE drawing.
Caution!
If the temperature of the heat exchanger is below the minimum temperature for the
gaskets prior to the service, it is recommended to heat the heat exchanger above this
limit to avoid cold leakage.
Note!
If several pumps are included in the system, make sure you know which one should be
activated first.
Centrifugal pumps must be started with valves closed and the valves must be operated as
smoothly as possible.
Do not run pumps temporarily empty on the suction side.
Note!
Adjustments of flow rates should be made slowly in order to avoid the risk of pressure
surge (water hammer).
Water hammer is a short lasting pressure peak that can appear during the start-up or
shut-down of a system, causing liquids to travel along a pipe as a wave at the speed of
sound. This can cause considerable damage to the equipment.
Step 1
Before start-up, check that all the tightening bolts are firmly
tightened and that the dimension
A is correct. Refer to the PHE
drawing.
A
Step 2
Check that the valve is closed between the pump and the unit
controlling the system flow rate to avoid pressure surge.
Document ID Language Edition
3490017599 EN 2016-06 Instruction Manual - Plate Heat Exchangers 15
EN