At over 32 ft² of transfer area, the CT193 is currently the largest evaporator plate available on the market worldwide. The CT193 is an evaporator plate with a 4.5 mm free flow gap on the vapor side and a 7.5 mm free flow gap on the product side. Its maximum connecting dimensions are 20” (nominal size) for the heating steam inlet and 24” (nominal size) for the vapor/product mixture outlet.

The plate pack can be extended by integrating additional cassettes as with any conventional plate heat exchanger. The maximum heating surface per single unit is almost 13,000 ft².

Due to its special flow gap geometry, the CT193 is particularly well suited for concentrating products, forming deposits and containing solid particles, with large vapor volumes.

When compared to Uo (Metric: k-value) values of tube-falling-film and plate-falling-film evaporators, the CT193 plate evaporator has a Uo value which is about twice that of tube-type evaporators (400 compared to 800 btu/hr-ft²-°F). So 1,000 ft² of plate evaporator surface equal 2,000 ft² of tube-type evaporator surface. When processing products with a higher viscosity, the Uo value of plates exceeds that of tubes even further.

When using the plate evaporator as a booster (e.g. as a surface extension of a Robert evaporator, the space above the heating chamber can be used as a separator.

The pressure drop of the CT193 is less than 1.45psi (0.1 bar) in almost all applications, making an effective pressure difference of approximately 0.7 psi (0.5 bar), sufficient for conveying the product from stage to stage without an intermediate pump, even when the unit is obviously fouled.

The plate is made of grade 316Ti Stainless Steel (1.4571) and equipped with EPDM gaskets, making it suitable for a temperature range from 122°F (50°C) to 284°F (140°C), and for a large number of applications. The result is excellent operation in the chemical and the sugar industries.