Brazed plate heat exchanger is assembled by stainless steel 304 or 316 plates in different directions, which are sealed with copper or nickel foil. In high temperature vacuum furnace, the copper or nickel foil melts to make the plates welded together. The maximum design pressure can reach 45bar and the burst pressure can reach 220bar. The connection material is generally stainless steel 304, which has higher strength. We could also supply different type connections, such as BSP thread, NPT thread, Solder pipe, flange type or clamp type.