3.4 Multi-pass
Multi-pass sections can be created by using turning plates with 1, 2 or 3
unholed ports. The main purpose is to change the flow direction of one or both
fluids.
An example of where multi-pass can be used is in processes that require
longer heating periods if the media requires slower heating.
Figure 3: Example of a multi-pass set up.
1. End plate II
2. Channel plates
3. Transition plate
4. Turning plate
5. Partition plate
3.5
Identification of plate side
The A side of the plates (symmetric pattern) are identified by a stamp with the
letter A and the model name at the top of the plate (refer to image 1 below).
Plates with asymmetric pattern has two possible sides for placement of the
gaskets. The pattern is marked A W for the wide-side image 2 and B N for
normal-side image 3.
200000547-4-EN-GB 17
Description 3 EN
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