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9.1 Complaints report
If you wish to complain about a Vahterus product, ask for a notification of defect
report at: [email protected]. Please include as many details as possible, and
especially the following:
¬ General information (including serial number)
¬ Design and operation
¬ Type of problem and observations
¬ Status of process
When you have completed the report, please contact your Vahterus representative.
9.2 Measures for replacements
If there is a need to replace a plate pack for an openable heat exchanger, take the
measurements at four different points inside the shell – see diagram below.
the user, according to rules that are in force in the country of the user, and original
design drawings. If necessary, please contact Vahterus for more information.
9.4 Criteria of limiting conditions for the equipment
¬ Mechanical wear (abrasion), scratches, corrosion damage that exceeds the corrosion
allowance for the wall thickness provided in the strength calculation.
¬ Mechanical damage to the plates that causes media to mix.
¬ Dents, ovality, wear of equipment (or elements) over permissible values.
¬ Cracks of all kinds.
¬ Defects in welds exceeding acceptable values, including single slags and gas inclu-
sions.
¬ Corrosion and cracking of the metal in the zone of the welds and close to the corrosion spots.
¬ Damage to the gaskets of flange connections or weakening of bolting.
10 Recycling
The metals used in our heat exchangers are recyclable, for example to make steel. The
rubber from the flow directors is not recyclable and must be disposed of according to
local waste disposal regulations.
9.3 Information about the repair
The repair must be performed by a qualified technician under the full responsibility of
