Alfa Laval FrontLine WideGap 100, Instruction Manual, Page: 18 / 30

Maintenance
Maintenance
To keep the heat exchanger in good condition, regular maintenance is required. It is
recommended to record all maintenance of the heat exchanger.
The plates need to be cleaned on a regular basis. The frequency depends on several factors
such as type of media and temperature. Different methods can be used for cleaning (refer
to “Cleaning – Non-product side” on page 18) or reconditioning can be performed at an Alfa
Laval service center.
After a long period of use, it can be required to regasket the heat exchanger. Refer to
“Regasketing” on page 29.
Other maintenance that should be performed regulary:
• Keep the carrying bar and guiding bar clean and grease.
• Keep the tightening bolts cleaned and greased.
• Check that all the tightening bolts are firmly tightened and that the dimension A is correct.
Refer to the PHE drawing.
Cleaning – Non-product side
The cleaning-in-place (CIP) equipment permits cleaning of the heat exchanger without opening
it. The purpose of cleaning with CIP is as follows:
• Cleaning of fouling and descaling of lime deposits
• Passivation of cleaned surfaces to reduce susceptibility to corrosion
• Neutralization of cleaning liquids before draining
Follow the instructions of the CIP equipment.
Warning!
Use proper protective equipment, such as safety boots, safety gloves and eye protection,
when using the cleaning agents.
Warning!
Corrosive cleaning liquids. Can cause serious injuries to skin and eyes!
CIP equipment
Contact an Alfa Laval sales representative for the size of CIP equipment.
Caution!
The residuals after a cleaning procedure shall be handled according to local
environmental regulations. After neutralization most cleaning solutions may be drained
into the waste water system under the condition that the fouling deposits do not contain
heavy metals or other toxic or environmentally dangerous compounds. Prior to disposal,
it is recommended to analyze the neutralized chemicals for any hazardous compounds
that were removed from the system.
Document ID Language Edition
18 Instruction Manual - Plate Heat Exchangers 3490017599 EN 2016-06