Wiped Film Evaporator (WFE / TFE / ATFE)

Introduction The Wiped Film Evaporator (WFE) - also referred to as a Thin Film Evaporator (TFE) or Agitated Thin Film Evaporator (ATFE) - is the versatile product of Dalal Engineering's (Chemical) Process Equipment Division. Designed for evaporation, concentration, distillation, stripping, dehydration, and deodorization, the Wiped Film Evaporator (WFE) is meant for feed streams that are heat-sensitive, viscous, or prone to fouling. The equipment accommodates a very wide range of feed compositions — from as low as 0.25% up to over 99% solute/non-volatile concentration - making it a versatile solution across different industry segments - agrochemical, adhesives, bulk drugs, fatty acids/oleochemicals, fragrances & perfumery, polymers, specialty chemical, use lube oil reclamation, etc. As an experienced evaporator manufacturer in India, Dalal Engineering brings decades of application knowledge and customization to every WFE manufacturing. (Customization for every case of Thin Film Distillation Equipment manufacturing project.) Working Principle Operation of the wiped film evaporator (WFE) is both smooth and effective. Feed material is introduced at the top of the unit and spread uniformly over the heated inner shell surface by a rotating distribution plate. Specially engineered wipers continuously wipe the feed, create a thin film, and renew this thin film, ensuring efficient heat transfer even for viscous fluids — a defining characteristic of all thin film evaporation (TFE)

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