Alfa Laval Heat Exchanger WideGap 100

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.

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, the longer the better, for gaskets to relax.

Re-tightened according to the instructions in Closing on page 38.

Alfa Laval recommends a hydraulic test should be carried out.

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

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.

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.

Check the warranty conditions before opening the heat exchanger.

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.