Alfa Laval Compabloc Plate Heat Exchanger CPH15

Inspect external elements of the heat exchanger

Check for issues on external elements

Inspect all welds for cracks, defects, and corrosion

Check painting for local absence of coating and blistering

Proceed with internal examination?

Estimate condition of internal elements

Check for issues on internal elements

Ensure the Compabloc is empty before opening.

Collect remaining fluid to prevent environmental pollution.

Are both circuits completely drained?

Are both circuits not pressurized and drains open?

Mark panels with identification symbols for correct re-installation.

Ensure panel is secured and cannot fall when unscrewed.

Fix the Compabloc to the floor to prevent tilting during dismantling.

Ensure chemical cleaning is performed by authorized and qualified personnel.

Take all necessary protection and precautions for health, safety, and environment regarding chemicals.

Select the type of deposit and corresponding cleaning agent

Ensure compatibility of cleaning agents with materials of construction such as metal and gaskets.

Follow complete cleaning protocol including agent, concentration, temperature, and time.

Check suitability of cleaning protocol with materials of the Compabloc.

Never use hydrochloric acid or substances containing chlorides.

Reassemble heat exchanger with original components

Ensure all panels are fully tightened

Enter the design pressure indicated on the nameplate

Is the maximum allowed differential pressure indicated on the nameplate?

Ensure one circuit is empty and the other is full and pressurized at design pressure

Pressurize the second circuit to secure the differential pressure

Pull out the ladder formed by uprights and baffle plates.

Remove triangular PTFE cord gaskets from longitudinal girder lining.

Remove the complete baffle cage.

Clean the triangular groove of the longitudinal girder lining and remove grease.

Install a new triangular PTFE cord gasket if required and press into position.

Note models that do not use triangular PTFE cord gasket