Cross flow Plate Heat Exchangers:

The plate heat exchanger consists of a plate stack composed of advantageously circular grooved plates, welded together. The clearances between the plates form flow ducts for flows of a heat-supplying medium and a heat-receiving medium. The plates are provided with holes which form inlet and outlet channels for the flows of the heat transfer media. At least one of the holes on the plates is located substantially in the centre of the plate. The plate heat exchanger operates on the cross flow principle. When the plate heat exchanger is provided with a partly opened mantle which connects the end plates together, and the central channel is provided with a partly opened pipe to control the flows, the plate heat exchanger is made to function both on the counter flow principle and the forward flow principle.