INSTALLATION, OPERATION and MAINTENANCE MANUAL | 69
installation and removal. The safety screen encloses the plate pack completely on the
top and sides and is open on the bottom to allow leak detection. See Figure 50.
13.4. In-Line Filter
For industrial applications involving fibers or particles which might foul the heat
exchanger plates or block the heat exchanger passages, an in-line filter is
recommended.
The in-line filter is inserted in the fluid inlet port of the heat exchanger through an
opening in the follower and closed with a blind flange cover (Figure 51).
The in-line filter mesh size is typically between 2.0mm (0.08 in.) – 2.5mm (0.1 in.) and
is, dependent on the heat transfer plate gap.
Where an in-line filter is purchased for an existing APV GPHE, please check whether
the plate heat exchanger is prepared for the installation of an in-line filter. Additional
modifications may be necessary.
Figure 50: Safety Screen Figure 51: In-line filter
13.5. Drip Tray
The drip tray is a 304 stainless steel rectangular box (open at the top) with typically
50mm (2 in.) wall heights and thickness of 18 GA (Figures 52, Figure 53, and Figure
54). The length is typically provided to accommodate the maximum number of plates in
a frame. The width varies from 50mm (2 in.) to 152mm (6 in.) larger than the plate
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