Alfa Laval Heat Exchanger MX25

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.

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

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

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

NOTE: Before removing the old gaskets, check how they are attached.

1. Open the heat exchanger, refer to Opening on page 33, and remove the plate that is to have a new gasket.

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.

3. Make sure that all sealing surfaces are dry, clean and free of foreign matter such as fat, grease or similar.

4. Check the gasket and remove rubber residual before attaching it.

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!