Alfa Laval Heat Exchanger TL10

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 31) 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 42.

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.;

Start-up after long-term out of service

Measurement between frame plate and pressure plate (A dimension)

Feet attached to the pressure plate removed

Leave the heat exchanger for 24-48 hours for gaskets to relax

Heat exchanger re-tightened according to instructions

Alfa Laval recommends a hydraulic test should be carried out

Warning: Ensure the heat exchanger is shut down before proceeding

Is the heat exchanger shut down?

If not, shut down the heat exchanger and then proceed

Is the ambient temperature below the freezing temperature of the media?

If yes, proceed to drain the heat exchanger

If not, shut down the process and then proceed

Is the media processed suitable for rinsing and drying?

If yes, rinse and dry the heat exchanger plates and connections

The procedures below concern field gaskets, ring gaskets and end gaskets.

Check how the old gaskets are attached before removing them.

Open the heat exchanger and remove the plate that is to have a new gasket.

Ensure all sealing surfaces are dry, clean and free of foreign matter such as fat, grease or similar.

Check the gasket and remove rubber residual before attaching it.

Attach the gasket to the plate. Slip the gasket tabs under the edge of the plate.

Warning: This check requires trained personnel with PPE!

Greasing of the tightening bolts

Protection of the plate pack and gaskets

Upload a photo of the heat exchanger after the check

Sign off on the heat exchanger check