Engineered For Your Success

Flottweg separators
for 3-phase separation

Separation down to the last drop

Separators for separating liquids

If two liquids have to be separated, purifiers (3-phase separators, purifiers) are usually used. They separate liquid phases of different densities from each other and simultaneously separate the remaining fine solid residues. Decades of experience and a quality made in Germany make Flottweg separators high-quality, durable and efficient.

Due to their special configuration, Flottweg purifier separators are optimally configured for the separation and discharge of two liquids and one solid phase. The 3-phase separator offers optimized flow conditions within the bowl to ensure maximum separation efficiency. Also with this disk separator, the discharge of solids is hardly audible.

Application areas for Flottweg 3-phase separators


Fats, oils, biofuels

In the production of oils and fats, separators refine the end product or support the production of biodiesel.

How the 3-phase separator operates

The product to be clarified runs through a stationary inlet pipe into the interior of the bowl and is gently accelerated to full speed by the distributor. The disc stack in the bowl divides the product stream into many thin layers, thus creating a large surface area. Within the disc stack, the liquid mixture is separated and the solids are discharged.

The liquid phases separated by centrifugal force are discharged from the bowl under pressure via two centripetal pumps. Due to the strong centrifugal force, the separated solids settle at the edge of the bowl. The separated solids are expelled periodically at full speed by a hydraulic system located in the lower part of the bowl.

Liquid gold from Andalusia

Over 90 percent of all olives are harvested in the Mediterranean region. One of the most important cultivation areas is Andalusia. Flottweg machines are in use in many companies in the southern Spanish region, for example at Virgen del Voto SL in the city of Bujalance.

In order to obtain the "liquid gold" in the highest purity, the manufacturer relies on Flottweg separator technology for oil clarification and refinement.

Our Services and Support


Machine trainings

We will show you how you can carry out simple maintenance work on the separator.


Rental machine service

Would you like to experience the performance of the separators for yourself? Or have a short-term project? Take advantage of our rental machine service.


Our after-sales service

From maintenance contracts and spare parts to optimization measures and repairs - our service is competent, honest and fast.

Flottweg AC series purifier separator


Dimensions [mm/ft]*

1200x700x1100 / 3,77x2,3x3,44

Weight [kg/lb]*

390 / 858


Dimensions [mm/ft]*

1200x900x1300 / 3,81x2,95x4,2

Weight [kg/lb]*

820 / 1804


Dimensions [mm/ft]*

1600x1100x1600 / 5,04x3,64x5,28

Weight [kg/lb]*

1550 / 3410


Dimensions [mm/ft]*

‍1400 x 1000 x 1400 / 4,48 x 3,29 x 4,01

Weight [kg/lb]*

1300 / 2860


Dimensions [mm/ft]*

1600x1200x1800 / 5,18x3,81x5,74

Weight [kg/lb]*

2900 / 6380


* The values are approximate and may differ from the actual values.

Dimensions [mm/ft]*

2100x1300x2000 / 6,82x4,36x6,46

Weight [kg/lb]*

3750 / 8250

Features for process optimization


Soft Shot®

The solids discharge of a Flottweg separator is performed by the patented Flottweg Soft Shot® discharge system. The system allows a precise and user-defined combination of partial and full emptying. Depending on the products to be processed and the consistency of the solids, the type of discharge can be adjusted to ensure highly efficient operation. Further information about the system can be found here:

Soft Shot®

Centripetal Pump

The centripetal pump ensures optimum discharge of the clarified liquids from the centrifuge. It discharges the clarified liquid under pressure from the separator bowl and prevents the product from foaming. Further information:

Centripetal Pump

Lubrication system

A lubrication circulation system ensures fully automatic lubrication of the bowl spindle bearings. It lubricates the bearings regularly with an optimum oil quantity. This enables precise and speed-independent lubrication. Further information:

Separator lubrication system

Disc stack

The actual splitting up of the liquid mixture takes place in the separator bowl disc stack. The disc stack consists of a large number of vertically arranged conical individual discs. The disc stack increases the clarifying area in the separator bowl and thereby the separation efficiency. Further information on the disc stack can be found here:

Disc stack


The Flottweg separators are controlled by our InGo operating philosophy. It enables optimum interaction of all process components and shows all important process parameters at a glance. Further information on the user interface can be found here:


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