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Condensate Return System

Reduce Water Usage

Sioux Steam-Flo Steam Generators are commonly used for heating rail tank cars. Sioux offers a portable Condensate Return System to be connected to our trailer or stationary mounted Steam-Flo Steam Generators during the rail tank car heating process. The system captures and recycles all the condensate/water to create a closed-loop system.

    • Increase overall system efficiency
    • Save time and water - refilling water tank will be reduced for portable applications
    • Prevent condensate from creating mud or ice under the railcar
    • Drastically reduce scale buildup inside the steam generator


To operate the system, a manifold with a steam trap is connected to the railcar, the condensate drains into a stainless steel water tank by gravity, and then a pump that is connected to level switches pumps the condensate directly back into the Steam-Flo Steam Generator. The pump is TEFC and all components are water tight designed for use outdoors. The Condensate Return System is also compatible with other boilers.


Sioux Model CR4000 Condensate Return System

  • 4000 lb/hr capacity at 60 PSI
  • 3/4 HP stainless steel centrifugal condensate pump
  • 25 gal portable condensate holding tank
  • Steam trap
  • High and low water level switch
  • 115V/1PH/60Hz Operating current 10 amps
  • 35' power cable I (10.7M power cable)
  • 20' pump power cable with water-tight connector
  • 3/4" x 25' condensate return hose with quick connectors 
  • 3/4" x 10' tank to pump hose with cam and groove connectors
  • 3/8" x 25' pump to boiler hose with quick connects