Expert in the manufacture of expansive diameter and overwhelming walled pressure vessels, with specialist ability in shell & tube heat-exchangers. Dunn Heat Exchangers, Inc. is also greatly capable in the development of preparing skids, funneling, modules and related supplies. We are experienced about the use of chrome moly, duplex and SAF, clad plate, stainless steels and exotics. Dunn Heat Exchangers, Inc. have developed extensive expertise in the design, fabrication and maintenance of shell & tube heat exchangers.