For viscous, scaling and salting liquids

Featured Product from Hebeler LLC.

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Forced Circulation Evaporator

As the name implies, force is used to drive the liquid through the evaporator tubes thus producing high tube velocities. A high efficiency circulating pump, designed for large volume and sufficient head, is used to supply the force. Proper design results in controlled temperature rise, controlled temperature difference and tube velocities that give optimum heat transfer. This type is recommended for viscous, scaling and salting liquids. As the liquid is only heated in the steamchest with flashing taking place in the separator and no boiling taking place within the tubes, fouling on hot tube walls is reduced.

BUFLOVAK Forced Circulation Evaporators may be equipped with either horizontal or vertical steamchests. The circulating pump withdraws liquid from the lower part of the vapor-liquid separator and circulates it through the tubes at a high velocity. Boiling is suppressed in the tubes either by liquid head or an orifice plate. The heated liquid is discharged into the separator where the vapor flashes off due to the temperature difference and is removed through the top outlet. The liquid is discharged at a maintained liquid level.

Forced Circulation
Evaporator Characteristics

  • Operates with extremely low temperature differences
  • High tube velocity
  • Velocity mechanically produced and controlled
  • Gives high rate of heat transfer, rapid evaporation and high concentration without requiring high operating temperatures or large heating surface
  • Maximum recovery of solids
  • Can use horizontal or vertical tubes
  • Tubes are readily accessible for cleaning and inspection
  • Suitable for single or multiple effects


Product Application

  • Very viscous liquids
  • Scaling liquids tending to produce scale
  • Heat-sensitive materials
  • Crystal producing liquids


At Buflovak LLC in Buffalo, NY, USA, we specialize in innovative, technology–driven solutions for the food, chemical, pharmaceutical, waste treatment, bio-energy industries. We are one of only a few worldwide offering product research and testing, the design and engineering of process equipment and systems, and manufacturing of complex one-of-a-kind and first-of-a-kind equipment and systems all at a single location. Buflovak LLC consists of specialized operating groups: Buflovak Rotating and Vacuum Thermal Process Equipment Group; P-K Process Equipment Group; and Buflovak Evaporation and Separation Technology Group.