Abstract: A method of fabricating a plate heat exchanger comprising the steps of providing heat transfer plates having fluid passage openings therein; disposing a metallic gasket assembly of a predetermined configuration around the fluid passage openings and perimeter portions of each heat transfer plate; alternating the heat transfer plates in a stacked relationship in a reverse orientation to form a plurality of flow cavities defined by the surfaces of the heat transfer plates and the metallic gasket assemblies; positioning turbulator members having corrugated grooves within each of the flow cavities for causing fluid turbulence; applying a braze alloy around the metallic gasket assemblies and on the surface of the heat transfer plates; and heating the braze alloy coated heat transfer plates to sealingly interconnect with each metallic gasket assembly and with one another.