Plate and Frame Heat Exchanger

Plate and Frame Heat Exchanger

Plate and Frame Heat Exchanger

DESCO’s semi-welded plate & frame heat exchangers follow the basic high efficiency design concept of the GPHE, but with one major deviation in the plate sealing method. Two (2) plates are laser welded into a cassette with an O-ring gasket at the port holes between the plates.
Primarily used for cooling, the welded channel is used for refrigerant with the process fluid flowing on the gasketed side.
SemiWeldedPlate&Frame1
SemiWeldedPlate&Frame2

Plate and Frame Heat Exchanger

This heat exchanger, because of the welded cassettes, can be used for higher pressure applications than the traditional GPHE. Also, fluids that are not compatible with tradition GPHE gasket material can be used on the welded cassette side because it is isolated. With the same advantages of GPHEs, semi-welded units can add plates to increase capacity and be disassembled/assembled easily to perform needed maintenance.

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