Dunn Heat Exchangers is your one stop shop for all your heat exchanger needs. In addition to our expert cleaning and repair capabilities, our Engineering Services Department provides thermal and mechanical design, drafting, estimating and purchasing of materials.

Thermal Design

• Dunn provides a guaranteed thermal design. Thermal designs for heat exchangers are rendered using HTRI to achieve an optimum design with most suitable exchanger technology with maximum reliability and efficiency at a minimum cost.
• Design of all TEMA Type Shell and Tube Exchangers includes Single Phase, Multi-phase and Multi-component Condensers (horizontal, vertical and reflux (tube-side)) and Reboilers (Kettle, Thermo siphon and Falling Film).
• Dunn's experienced engineering team can also provide troubleshooting to analyze exchanger performance issues and propose practical solutions to restore or increase performance.

Mechanical Design

• Dunn provides complete mechanical design using PVElite/CodeCalc software. Our exchangers are fabricated in accordance with ASME Section VIII, Div. 1and 2 standards, as well as TEMA, NBIC, and API specifications.
• Our designs include Fixed Tube sheet, U-Bundle and Floating Head Pull Through Bundle types.