Wiped Film Evaporator

Wiped Film Evaporators (WFE) are extensively used for evaporation applications in distilling, concentrating, stripping, reaction of products that involve high viscosity, high boiling points and heat sensitivity.

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Advantages Technical Add-ons (for best function)
Continuous processing for heat sensitive, fouling and viscous products Advanced Automation with PLC/SCADA (optional)
High heat transfer coefficients Heating circulator/chillers can be included
Short residence time Vacuum pump can be included
Low hold up with minimum losses
Easy operation with low maintenance

Working Principle:

Operational process of WFE involves thermal separation of mixture by formation of a thin film on the shell surface.

How ?

A rotating distribution plate with special designed wipers help in forming of the film on shell for the feed from the feed vessel. The rotor is responsible for stabilising the liquid film on the heating surface. The thin film formed helps in efficient heat transfer for viscous heat sensitive fluids.

The vapours travel through vapour line to a condenser and hence are condensed. Provision of a condenser makes it a molecular distillating unit.

Higher boiling components or products are collected in the receiver through product outlet.

Models for Wipe Film Evaporator
Model Inside
Diameter (mm)
Evaporation Area
(m2)
Receiver Flask Volume Feeding Rate (L/h) Motor Power RPM/min Chiller Heating Circulator
JE-WFE2 50 0.05 2L 0.5 to 3 120W UPTO 400 FL-800
(Power – 800 W)
UC-1820
(Power – 2 kW)
JE-WFE3 80 0.1 2L 1 to 5 120W UPTO 400 FL-800
(Power – 800 W)
UC-1820
(Power – 2 kW)
JE-WFE4 100 0.15 5L 2 to 8 120W UP TO 400 FL-800
(Power – 800 W)
UC-1820
(Power – 2 kW)
JE-WFE6 150 0.25 20L 3 to 15 120W UP TO 400 FL-0250
(Power – 2.5 kW)
UC-3020
(Power- 3 kW)
JE-WFE8 200 0.3 30L 5 to 20 120W UP TO 400 FL-0250
(Power – 2.5 kW)
UC-3020
(Power- 3 kW)

Application :

  • Distillation of heat sensitive materials and viscous materials
  • Evaporation of organic compounds ( Solvent recovery )
  • Concentrating solids in solution ( food industry )
  • Purification of drugs
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