Got Compressors? Turbofans Are a Smart Upgrade for Your Evaporator

We’re constantly reminded that evaporator turbofans are evolving fast with the advancements in CAD, CAM and materials, and are much more capable than in past generations of the technology. They are an ideal replacement for aging high-speed turbo compressors.



Older evaporators with Mechanical Vapor Recompression (MVR) using turbo compressors were installed in processing facilities in the 1970s, ’80s and ’90s. The useful life of these MVR units is 25 years. The MVR evaporators from this era still in operation have exceeded their useful life. There are implications for functionality, efficiency, and most importantly, safety, for these aging units.

Evaporators incorporating MVR for concentrating liquids continue to be critically important for a wide range of industries. MVR evaporator upgrades can help facility managers reduce maintenance costs, improve evaporator performance and reduce safety risks associated with antiquated equipment.

Many older MVR units incorporated high-speed compressors or an older generation of turbofans. These rotating components are integral to MVR technology, however, after so many years they are prime for significant hardware failure.

A failure of the rotating component of the MVR unit can cause serious injury to personnel, in addition to causing major disruptions to your production line.

Turbofan technology has come a long way in the intervening decades. Caloris highly recommends that processors evaluate their current equipment and plan for upgrades to more modern turbofans.

Caloris has a white paper available “MVR Evaporator Upgrades: High-Speed Compressor & Turbofan Replacements for Improved Reliability and Performance,” which explains the risks of older equipment and the solutions available thanks to advances in machine designs and evaporation technology.

Caloris can offer these options to your facility. In most cases, the time needed to implement the solution is months, not weeks, so planning ahead before failure strikes is the only wise path.

Let’s Chat

To learn more about the available options for MVR evaporator upgrades, request to download our white paper here and/or watch the related webinar. If you need immediate assistance, call Caloris at 410-822-6900 or send email to to speak with one of our process engineers about a potential MVR evaporator retrofit at your facility.


About Caloris

Caloris transforms process systems design for the better with unexpected, future-focused solutions that solve real operational problems. We engineer efficient, dependable and productive solutions that also improve environmental sustainability where practical. Designed with the end user in mind to drive plant productivity. Caloris offers evaporation, membrane filtration and spray drying process systems for food and dairy industries, as well as for water reuse and wastewater treatment applications. Both Caloris’ custom and pre-engineered packaged systems are designed to meet our customers’ specific concentration/purification needs utilizing the most cost effective and energy efficient technologies available. Whether concentrating dairy, food or juice products at a high-volume production facility, or processing industrial wastewaters to reduce transportation and treatment costs and recover re-usable water, Caloris provides a range of options and technologies.