Alfa Laval FrontLine WideGap 100, Instruction Manual, Page: 28 / 30

Maintenance
Pressure test after maintenance
Before the start-up of production, whenever plates or gaskets have been removed, inserted or
exchanged, it is strongly recommended to perform a pressure test to confirm the internal and
external sealing function of the heat exchanger. In this test, one media side at a time must be
tested with the other side open to the ambient pressure. When multi-pass set up, all sections of
the same side must be tested simultaneously.
Caution!
The pressure testing shall be performed at a pressure equal to the operating pressure of
the actual unit but never above the design pressure as stated on the name plate.
The recommended test time is 10 minutes for each media.
Consult your local Alfa Laval representative for advice on the pressure testing procedure.
Document ID Language Edition
28 Instruction Manual - Plate Heat Exchangers 3490017599 EN 2016-06