Mechanical Vapor Recompression (MVR) Evaporators

The Anhydro® Tubular Evaporator with Mechanical Vapor Recompression (MVR) provides efficient, low-temperature concentration of liquid products using mechanical vapor recompression. Built for dairy, food, beverage, chemical and pharmaceutical applications, it offers high thermal performance, low energy consumption and optimal product quality even for the most heat-sensitive formulations.

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In modern processing environments, energy efficiency, product quality and plant uptime are critical for competitiveness. The Anhydro Tubular MVR Evaporator helps processors:

Minimize energy consumption in thermal processing
Preserve flavor, color and nutrients in delicate formulations
Increase uptime and reduce fouling with gentle, single-pass design

The Anhydro Tubular MVR Evaporator solves these challenges with:

Mechanical vapor recompression (MVR) for energy savings – minimal or no live steam required once operational
Closed-loop vapor recycling using a high-pressure fan to recompress vapor and reuse it as a heating medium
Low-temperature falling film evaporation for gentle product handling
Single-pass evaporation for high throughput and minimal fouling
Engineered static liquid distribution for full tube wetting, maximizing runtime and preventing dry spots
Optional split calandria for multi-pass or staged concentration
Modular, compact design for new installations or plant upgrades
Fully automated controls for process monitoring, traceability and integration

Why Choose Anhydro Tubular MVR Evaporators?

Designed for energy-efficient evaporation with minimal steam use
Ideal for concentrating heat-sensitive, low-viscosity liquids
Modular and compact—easy to integrate into existing or new lines
Fully CIP compatible for fast sanitation and minimal downtime
Decades of thermal processing experience and in-depth application expertise
Available pilot testing at the SPX FLOW Innovation Center in Soeborg, Denmark
Full lifecycle support including engineering, commissioning, service and spare parts

Distinctive Advantages

High energy savings via mechanical vapor recompression
Gentle heat treatment with short residence time
Advanced liquid distribution system ensures stable performance
Customizable setup: single or multi-effect, split calandria
Built-in automation for control, diagnostics and compliance
Reduced thermal stress supports flavor, color, and nutrient retention
Strong ROI in regions with access to low-cost electricity

Product Applications

Milk & Cream
Sweetened Condensed Milk
Whey Permeate Powder
Plant-Based Beverages
Fruit Juices
Nutraceuticals

Theory of Operation

The Anhydro Tubular MVR Evaporator concentrates liquid products through falling film evaporation powered by mechanical vapor recompression (MVR). A high-pressure fan compresses vapor from the process to a higher pressure and temperature, enabling it to be reused as the heating medium.

This closed-loop system significantly reduces or eliminates the need for external steam, delivering exceptional thermal efficiency. Operating under vacuum conditions, the system preserves product integrity while minimizing energy costs. In many cases, MVR concentration is followed by additional processing in a TVR or forced circulation evaporator for further concentration or crystallization control.

Product Dimensions

Configurable to match existing production lines and facility layouts.

Product Options

Modular configuration options for new or retrofit installations
Full automation and SCADA system integration
Integrated aroma recovery and crystallization control options
Tailored energy recovery packages
Fan drive options: electric motor, steam or gas turbine

Product Specifications
Feature	Details
Configuration	Single or multi-effect design
Number of Calandrias	1-3
Applications	Dairy, food, chemical, pharmaceutical
Heating Source	Recompressed vapor MVR via high-pressure fan (electric motor, gas or steam turbine)
Energy Consumption	Very low; little or no steam required
Thermo-compressor Drive	Powered by live steam
Operation Conditions	Low pressure, low temperature, under vacuum
Cleaning System	Fully automated Cleaning-in-Place (CIP)
Build configuration	Adaptable to new or retrofit installations
Materials of Construction	Stainless steel, hygienic and corrosion-resistant
Automation	Integrated with monitoring and remote access

Mechanical Vapor Recompression (MVR) Evaporators

The Anhydro Tubular MVR Evaporator solves these challenges with:

Why Choose Anhydro Tubular MVR Evaporators?

Distinctive Advantages

Product Applications

Theory of Operation

Product Dimensions

Product Options

Product Specifications

What does the Anhydro Tubular MVR Evaporator do? +

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Does SPX FLOW offer testing or validation before purchase? +

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