Why EvapCare-W Is the Ideal Solution for Heat-Sensitive and Viscous Products
- cemnar0
- Aug 29
- 2 min read
In industries processing sensitive, viscous, or fouling-prone products, continuous evaporation poses a unique challenge. Heat exposure can degrade valuable components while deposits can reduce heat transfer efficiency and increase downtime. Sulzer’s EvapCare-W wiped film evaporator expertly meets these needs by combining gentle handling, robust design, and operational flexibility.
Renewed Surface for Continuous Evaporation
Unlike traditional evaporators, the EvapCare-W features a single evaporation tube fitted with a mechanical rotating rotor that continually distributes and mixes the liquid film on the heated surface. This generates turbulent eddies breaking up deposits and reducing fouling constituting a renewed surface for each rotation cycle.
The liquid spirals downward in a thin, uniform film while vapor rises counter currently to be separated and condensed, ensuring efficient separation with minimal product thermal degradation.
Engineered for Tough Feeds and High Performance
EvapCare-W handles products with high viscosities, streams containing solids, and feeds forming challenging deposits. It achieves evaporation ratios exceeding 95% without recirculation, all while maintaining low pressure drop and short residence times, protecting the product integrity. Operation under low vacuum further allows treatment of heat-sensitive components across chemical, pharmaceutical, food, and biotech industries with minimal degradation risk.
Flexible Rotor Types for Your Exact Process
Sulzer offers several rotor designs tailored to various applications:
Type L: Rigid blades with fixed clearance for general applications
Type P: Hinged wiper blades that swing outward under centrifugal force to clean the heated surface dynamically
Type R: Rotating rollers that adjust film thickness for precise control and fouling prevention
Each type ensures optimal liquid film thickness, mixing, and fouling resistance tuned to your feedstock and process parameters.
Glass-Lined Units for Corrosive and GMP Applications
For highly corrosive or sanitary processes, EvapCare-W is available as glass-lined units where all wetted parts except the wiper blades are glass-coated to resist harsh chemicals and ensure CIP compatibility. The glass-lined design uses a self-supporting rotor without a bottom bearing, simplifying maintenance and enhancing reliability. Available in standard sizes from 1 to 6 m², these units blend durability with process cleanliness ideal for pharma and specialty chemicals.
Proven Process Validation and Support
Sulzer’s dedicated pilot plant facilities provide process testing to validate your feed and operating parameters. Mobile test units are also available for onsite trials for practical performance confirmation before scaling up. Sulzer’s global service network supports design, installation, and lifecycle management ensuring your EvapCare-W unit delivers guaranteed results and long-term operational excellence. Ready to elevate your continuous evaporation process?
Contact Sulzer’s process technology team today to find the best EvapCare-W configuration for your heat-sensitive, viscous, or fouling-prone feed and ensure maximum yield with minimal downtime.
