A customer approached us with a request to offer a complete recirculation system which can do 120 ACFM at 20 Inches of Vacuum, NES responded using NES AHF-120 Pump with a Class I Div. 2 Motor, Metal OSHA Compliant Coupling guards. The system has a Shell and Tube Heat exchanger in build in the skid. The base is box welded. The piping is welded to prevent shipping damage.