Chapter 7
Maintenance
K°Bloc – Fully welded plate heat exchangers - English Version 2.2 - 01.2016
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7.5 LEAKAGE TEST
After having opened the K°Bloc, a leakage test must be carried out. Here the
tightness test pressure is equal to the max. permitted pressure specified on
the rating plate and must be applied to the K°Bloc on both sides evenly at
the same time.
WARNING
Danger of injury from functional failure of K°Bloc compo-
nents!
The use of pressure and temperature levels and media may cause functional
disorder of K°Bloc components and endanger persons and the environment.
Never exceed permitted pressure and temperature levels.
Do not use any unapproved media in the K°Bloc.
IMPORTANT NOTE
Damage to the K°Bloc due to extreme pressure variations!
In the leakage test, the K°Bloc is tested at defined pressure levels. The
K°Bloc may be damaged if the pressure test is not performed properly.
Respect pressure variations of max. 2 bar/min. (1.4404/316L) and
0.5 bar/min. for other materials.
Avoid a sudden pressure rise (liquid hammer) and sudden pressure drop
on the K°Bloc.
Avoid any pressure direction changes on the K°Bloc!
Should the maximum allowed pressure levels on both sides deviate, the
high-pressure side should always have a higher pressure than the low-
pressure side when increasing and reducing the pressure!
