Armstrong ST Steam/Water Instantaneous Heat Exchangers offer multiple size/flow options in a compact heavy duty industrial shell and tube type "Feed Back" Water Heater with steam control valve.

The Flo-Rite-Temp ST is a compact heavy duty industrial steam shell and tube type instantaneous heat exchanger. Its heavy duty construction and easy-to-clean tube bundle make it ideal for those difficult applications where downtime is a concern.


  • Straight tube bundle with a free floating and designed for easy bundle removal.
  • A non U-bend tube bundle design with a removable end cover allows for easy and assured tube cleaning when required.
  • Heavy duty 5/8" tubes of 16 gauge admiralty brass ensure long life and maintainability - 10 year tube bundle warranty against workmanship or material defects.
  • The removable tube bundle end cover allows for 100% visual inspection of all tubes both inside and out.