Heat Transfer Units

envirosep: HTU
The envirosep Model HTU, Heat Transfer Unit is a manufactured unit featuring an ASME shell and tube heat exchanger with U-tube configuration. The envirosep HTU is a complete unit including a steam control valve, inlet steam Y-strainer, and steam trap. Each unit is custom engineered and designed to meet specific system requirements. All systems are fabricated and welded per ASME Section IX Code and Standards, and are hydrostatically tested prior to shipment.


  • ASME, shell & tube heat exchanger
  • Self-contained, pilot-operated or pneumatic modulating steam control valves
  • Float & thermostatic steam trap assembly
  • Wall or floor mounted frame
  • Removable tube section
  • Inlet steam pressure gauge


  • Inlet steam isolation valve & Y-strainer
  • Inlet steam condensate removal
  • Recirculation pumps
  • Vertical installations
  • 1/3:2/3 control valve arrangement
  • UL-Listed control panel with microprocessor digital temperature controller
  • Thermostatic air vent
  • Waterside thermometers
  • Steam / waterside pressure relief valves
  • Specific performance criteria can be designed upon request
packaged pumping systems
industrial control panels

Contact us to learn more about Envirosep solutions.

We offer integrated solutions for your fluid handling, heat transfer and energy recovery needs.