High-performance automatic filter for efficient fine and coarse filtration
Our Filterautomat was developed to optimize the filtration process while reducing the effort required for operation to a minimum. Thanks to its independent control and automated processes, the automatic filter is able to continuously monitor and adjust the filtration process to achieve optimum filtration results.
Its rotating filter drum ensures the uniform distribution and removal of solids over the entire filter surface. Its robust design and excellent backwash performance offers companies a reliable solution for the efficient filtration of solids for almost every industry. Contact our experts and find out more about our Filterautomat - an industrial water filter for solid-liquid separation.
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MAXIMUM CLEANING PERFORMANCE AND FINE FILTRATION DOWN TO 25 MICROMETERS
With cleaning speeds of 4 to 10 m/s and 100% cleaning of the entire filter surface, we ensure outstanding cleaning performance for every application. Even coarse particles are reliably sheared, while the fine filtration effortlessly traps particles from a size of 25 μm.
FLEXIBLE CUSTOMIZATION AND EASY INTEGRATION FOR VERSATILE FILTRATION REQUIREMENTS
Thanks to the uniform feeding of the entire filter surface and the option of integrating individual wedge-wire screens or wire mesh, the automatic filter offers a flexible and adaptable solution for every application. The compact inline design and fully pre-wired tested unit allows for quick installation and seamless integration into existing systems.
EFFECTIVE APPLICATIONS IN NUMEROUS INDUSTRIES
The automatic filter is versatile and can be used in industries such as steel, paper, chemicals and power plants. It also supports cleaning in wastewater treatment plants and the maintenance of building technology, while additionally ensuring clean systems in geothermal and offshore applications, the food industry, drinking water treatment and irrigation. Furthermore, it plays a valuable role in mussel control.
WHY A BACKWASH FUNCTION?
Backwashing is used to regularly clean the filter element to remove accumulated solids. This keeps the filter surface free and fully functional, allowing the filtration process to continue without interruption and with consistent efficiency.
HOW DOES THE BACKWASH FUNCTION WORK?
Automatic backwashing prevents blockages caused by deposits, which could otherwise result in increased differential pressure, reduced water flow and potential process disruptions. In this way, backwashing ensures constant cleaning performance extending the service life of the filter by removing contamination completely and in good time.
This video illustrates the individual steps of the filtration process.
From the entry of the raw water to the exit of the clean water, it shows the entire process and explains how the automatic backwash function works without interrupting the filtration process.
The motor-driven backwash valve opens, creating atmospheric pressure in the backwash line and in the flushing channels in the filter housing. Due to the excess pressure on the clean water side of the filter drum, the solids accumulated on the filter element are backwashed towards the atmosphere against the direction of filtration.
Filter components
Filter housing
There are two opposite flushing channels in the filter housing. To prevent the raw water from entering the flushing channels during the backwash process, the flushing openings are sealed off all around with sealing surfaces. The filter housing is coated with a standard two-component epoxy resin coating. During assembly, the upper part of the filter is inserted into the filter housing, with the lower part of the filter drum centered in the filter housing by a ring surface.
Filter drum
The filter drum consists of a sturdy inner and outer support basket. The filter element is located between these support baskets. The conical design allows the three individual parts to be fixed and screwed together with perfect dimensional accuracy. A high-quality powder coating is applied to the support cages to protect them against corrosion.
Coarser parts can also be retained in the segment-like openings in the outer part of the filter drum and, if necessary, broken up between the outer part of the filter drum and the backwash channel. These particles are then flushed out of the system during the backwash process.
Filter element: Wedge wire screen
The automatic filter can be equipped with different filter elements depending on the requirements. The wedge wire screen consists of welded stainless steel triangular rods and is characterized by an extremely robust design. It is available in various grades of stainless steel and offers a filter finenesses starting from 30 μm.
Filter element: Wire mesh
Alternatively, a wire mesh is available that is held in a sandwich construction by two supporting meshes, which enables a higher net filter area utilization. This element is also available in various stainless steel grades and offers a filter finenesses starting from 25 μm.
