Alfa Laval Heat Exchanger MA30

During manual cleaning, it is necessary to open the heat exchanger to clean the plates.

NOTE: Before opening the heat exchanger, check the warranty conditions. If in any doubt, contact the Alfa Laval sales representative. Refer to Warranty conditions on page 7.

WARNING: If the heat exchanger is hot, wait until it has cooled down to about 40°C (104°F).

WARNING: If necessary, use proper protective equipment, such as safety boots, safety gloves and eye protection, depending on the type of media in the heat exchanger.

The bolt configuration of the heat exchanger varies between different models. The major force of the plate pack is held by the tightening bolts (TB). To distribute the force evenly over the frame plate and pressure plate, locking bolts (LB) are used as well. The locking bolts can be shorter and can have smaller dimensions.

In the opening and closing procedure, it is important to identify the tightening bolts (TB) and the locking bolts (LB). Refer to the picture on page 35.

Warning: Draining should be done by trained personnel only

Is the heat exchanger shut down for several days or longer?

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

If any of the above conditions are met, proceed with the draining

Draining of heat exchanger completed

Is the media processed in the heat exchanger?

If yes, proceed with rinsing and drying the heat exchanger plates and connections

Rinsing and drying of heat exchanger plates and connections completed

Avoid vacuum in the heat exchanger by opening vent valves

The stored heat exchanger shall be visually checked every third month. When closing the packing it shall be restored to original condition.

• Greasing of the tightening bolts

• Protection of the plate pack and gaskets

If storing for longer periods of time, such as one month or longer, certain precautions should be made to avoid unnecessary damage to the heat exchanger. Refer to Outdoor storage on page 45 and Indoor storage on page 45.

Alfa Laval and its representatives reserve the right to inspect the storage space and/or equipment whenever necessary until the expiration of the warranty period stipulated in the contract. Notification must be given 10 days prior to the date of inspection.

If there is any uncertainty about the storage of the heat exchanger, consult an Alfa Laval representative.

If storage of the heat exchanger after delivery is known in advance, inform Alfa Laval when ordering the heat exchanger to ensure that it will be properly prepared for storage before packing.

• Store inside a room with the temperature between 15 and 20°C (60–70°F) and humidity up to 70%. For outdoor storage read Outdoor storage on page 45.

• To prevent damage to the gaskets, there should not be any ozoneproducing equipment in the room such as electric motors or welding equipment.

6.1 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.

Use proper protective equipment, such as safety boots, safety gloves and eye protection, when using the cleaning agents.

Corrosive cleaning liquids. Can cause serious injuries to skin and eyes!