Mass Transfer Internals

We offer a complete product portfolio relevant for all types of mass transfer towers. Our products are used in distillation, rectification, stripping and absorption towers and can be applied to particle or droplet separation systems. Our products are also used in direct heat exchanger columns as well as in liquid-liquid extraction towers (distributors, trays, structured and random packing).


An optimum distribution is an important part for good operation efficiency. Discover our solutions and improve your processes.

The high quality liquid distributor DT-MF is a trough type distributor with each trough consisting of multi-flow liquid discharge tubes and lateral holes in the wall of each tube. They are relatively unaffected by fluctuations in the quantity of liquid and are suitable for systems prone to contamination. Owing to the design of the liquid distribution channels this distributor can also be used in large gas or vapour loads.


Discover the RASCHIG JAEGER high-capacity trays that allow you to further increase the capacity of your columns.

Trays and internals have to be optimized for proper function under the new hydraulic conditions. The Nye-Technology increases tray capacity with up to 10% or even 30%. At the same time, the improved donwcomer outlet shape reduced tray pressure drop and enhances the liquid-vapor contact.

The solution is ideal for revamps as the trays can be applied without welding at the column shell.

Our partner

RASCHIG JAEGER can offer a large variety of different tray types and technologies that are applied, depending on their specific advantages, for different processes and operating conditions.

Structured and random packing

Discover the new innovative advantages for mass transfer efficiency, low pressure drops and high capacities.

RASCHIG-PAK is the standard structured packing sheet type. For more experienced efficiencies, pressure drop and capcities, RASHCIG SUPER-PAK is the latest structure with innovative advantages.

Our partner

Initially focussed on tar distillation, Raschig also developed methods of producing highly purified tar components such as anthracene, carbolic acid and benzene. Today, he is best-known to every student of chemistry and engineering for his breakthrough in distillation technology, the revolutionary “Raschig Ring”.

Reverse osmosis

We provide complete RO Solutions includes pre-treatment modules, which may include activated carbon, cartridge, multi-media, greens and filters, and/or activated carbon pre-filtration, softeners, and/or chemical feed systems.
Our Service RO offering leverages Nalco Water’s 3D TRASAR capabilities to remotely monitor operation and performance, ensuring a reliable supply of water and minimizing unscheduled downtime.


Our dealkalization systems for commercial/ industrial applications to reduce make-up water or boiler alkalinity. Dealkalization can minimize the OPEX with the chemical cleanings, change of spare parts, waterside scale formation, boiler carryover, boiler blowdown and can increase return condensate PH.

Chemical treatment

Designed to safely optimize cooling towers performance while conserving water and minimizing waste.
Safety is a priority both with our cooling water chemical treatment programs and the environment. 3D TRASAR™ technology for cooling water towers can help you reach your sustainability goals by reducing water and energy use and making blowdown safer for discharge.

Centrifugal decanters

When solid/liquid mixtures with a high portion of solids need to be separated, decanter centrifuges are the solution of choice. These solid shell scroll centrifuges or decanters operate continuously, without human intervention . High centrifugal forces separate the finely distributed solid particles from the suspension.

The centrifuges are adapted optimally to the specific application. Applications range from sludge dewatering to classification or wet classification to the sorting of solids. The Tricanter® from Flottweg allows the continuous separation of three phases (solid-liquid-liquid) in a single process. This is attractive, for example, in the treatment of oily sludges, in starch production and in fat recovery.

Cooling towers

Reliability, performance, corrosion resistance and environmental friendliness are the main values present in all our designs. Another key feature of EWK cooling towers is the FRP casing, its ease of maintenance, fulfilling also the health regulations concerning Legionella.

The “Smart Cooling Towers” extend the lifespan of the equipment by monitoring its performance in real time. Several sensors monitor performance and send warnings of abnormal performance. The Smart Cooling Tower includes various features such as: water level probes, anti-freezing heaters, vibration switches and emergency stops. Thanks to the environmental temperature and humidity probes, we have remote access to the cooling tower operational data, and we provide key predictive maintenance information.

EWK cooling towers, evaporative condensers and adiabatic closed-circuit coolers are suitable for applications in light-medium-heavy industries (energy, oil and gas, biofuels and biomaterials, chemical, minerals and metals, pharmaceutical, food, automotive, paper) and HVAC (shopping centers, hospitals, office buildings).

Disc stack separators

With a more powerful centrifugal acceleration, separators are ideal for separting ultrafine particles from a liquid or liquid mixtures with different densities.

Separators are used in numerous process engineering for mechanical separation and clarifying mixtures comprising bolth solids and liquids. Unlike a decanter, a separator is liquid-oriented and works with a higher rotation speed.

The disc stack is used in separating the product stem in more partial streams, consisting of a large number of vertically arranged, conical individual disks.

Flottweg Separators are used in extremely varied applications:

  • Beverage and brewing industry
  • Starch industry
  • Chemicals and biotechnology
  • Extracting and processing fats and oils

Evaporative Condensers

Obtain the highest cooling efficiency with the EWK evaporative condensers. The products are designed to optimized water and energy consumption.

Evaporative condensers are renowned for their excellent coil performances and by their long-lasting polyester corrosion-proof casing. The efficient aerodynamic design allows a vast quantity of airflow and a low energy consumption.

These condensers can be easily installed, removed or relocated in any environment and in any water hardness condition.

Belt filter press

High-performance and low maintenance. The belt press is used for dewatering pulp, mash or spent grains silage Anyone who wants to dewater pomace, mash or spent grains silage uses belt presses. They press the last residue out of the solids cake and are easy to maintain, clean and operate thanks to their easily accessible construction. Flottweg belt presses are robust, durable and powerful – quality made in Germany.

Heat exchangers

Our heat exchangers meet the requirements with the best quality – for all industrial applications. Experience the benefit of an individually customized solution that perfectly matches your process requirements and lowers your energy consumption.

We offer compact models, light in weight, suitable for higher pressure and temperatures. The structural properties make them durable, easy to maintain through chemical cleanings or other service operations.

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