The main drawback of plate heat exchanger (1) plate heat exchanger permissible operating pressure and temperature are relatively low.
Usually operating pressure is lower than 1.
SMPa, highest do not exceed 2.
OMPa, high pressure easy to leak.
(2) the operating temperature of plate heat exchanger is conditioned by gasket materials heat resistance, generally no more than 250 c.
Another two plate due to the plate heat exchanger of spacing of a few millimeters, circulation area is lesser, velocity is small, the capacity is small.