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2.3 Sanitary plate heat exchangers
Frames used for sanitary or hygienic duties
are fabricated in solid stainless steel or
carbon steel with stainless steel covering.
Standard connections are usually sanitary
tube fittings. Industrial fittings may be
supplied when required.
Plates may be either parallel flow or diagonal
flow.
L Note: The type of plate, whether parallel
or diagonal, affects the position of the fluid
inlet and outlet connections, left/right.
Parallel plates have both flow inlet and outlet
ports on the same side, e.g. left side for the
hot medium and right side for the cold
medium.
For diagonal plates, however, if the fluid
enters the channel in the left corner, then it
leaves the channel in the right corner
Parallel plates require only one type of plate,
while diagonal plates require two different
plates to form a flow channel.
2.3.1 Grids and bosses
The intermediate grid divides the plate heat
exchanger into separate sections that may
operate independently. The connector grids
are equipped with removable connector
bosses made from stainless steel.
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