Suitable for all applications where low or high-viscosity liquids or pastes have to be filtered and homogenised.
AF 73 G / AF 93 G
AF 73 G / AF 93 G
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These compact inline filter systems can be designed for semi or fully automatic cleaning. The system is cleaned by rotating the filter cartridge against a spring actuated scraper. The AF 93 G version also has integrated preseparation.
Multiple advantages
Extended filter
Extended filter service life due to the use of a cleanable element
No interruption
Cleaning is possible without interrupting filtration
Separation quality
Precise separation quality in accordance with the metal-edge principle
Filter cartridge
Sturdy filter cartridge made of triangular stainless steel wire on a rugged core element
Efficient cleaning
Efficient filter cleaning assures maximum process stability
Long service life
Solid construction and high-quality materials for a long service life
Modular system
Modular system for optimum filter selection (small Vario series)
Filter selection
Modular Filtration Group Vario system for optimum filter selection
Wide range of applications
Material variants open up a wide range of applications
Gas-tight shaft
Gas-tight shaft selas available optional
Application in Ex zone
Application in Ex zone 1 and 2 optional
PED
Certification for Pressure Equipment Directive (PED) according to category III PED EN optional
Maintenance
Easy maintenance
Distribution
Worldwide distribution
Operating principle
The Filtration Group AF 73 G and AF 93 G metal-edge filters belong to the small Vario series. The Filtration Group metal-edge filter system is used to filter and homogenise a wide range of liquids and pastes. This compact, inline filter system consumes no filter material, which means there is also no need for subsequent disposal. The filter is cleaned either automatically or semi-automatically without interrupting operation. The concentrated solids are drained off simply by opening the system for a short time. The medium to be cleaned is guided into the filter housing under pressure or in suction mode. It flows inward through the Filtration Group filter cartridge. The solids are separated on the surface of the triangular filter cartridge wires. The filtered fluid exits the filter housing at the top opposite the inlet connection. In the AF 93 G version, the tangential flow around the tube of the integrated preseparator relieves the load on the filter cartridge from coarse and heavy particles. The filter is cleaned either when a preset differential pressure limit is reached or after a specified cycle time elapses. The Filtration Group filter cartridge is rotated against a spring actuated scraper for this purpose. The special gap geometry of the filter cartridge guarantees efficient cleaning. The particles or agglomerates are skimmed from the surface and settle in the collection cone. The patented filter cartridge bearing (AKF system) prevents high axial forces and facilitates the cleaning process. The residue that has settled in the collection cone can be emptied via the drain valve either when the machine is at a standstill or during filtration.
- Optimal cleaning with sharpedged triangular wire
- Large effective filter surface
- Precise, small gap widths
- High differential pressure stability and torsional strength
- Different material combinations possible

- High wear resistance to abrasive media
- Sturdy trapezoidal profile for high-viscosity media
- Continuous welded design
- Manufactured in stainless steel

- Specified sharp-edged hole diameter
- Asymmetric hole pattern
- Suitable for filtering fibrous waste material
- Manufactured in stainless steel or nickel


Technical data
Connections and nominal diameters:

Materials:

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Performance curves

— Viscosity in 1 mm²/s
— Viscosity in 33 mm²/s
— Viscosity in 100 mm²/s
— Viscosity in 500 mm²/s
y = volumetric flow V [l/min]
x = gap width f [µm]
The curves represent the volumetric flow through the entire filter system (filter housing including one filter element as an example) and refer to a differential pressure of 0.3 bar. Specific information about process data is essential for reliable operation of automatic filters.
Important information about the performance curve! This is an example of a filter element of the type AF6016. The number of filter elements can be read from the type number key, see section 6.
The curves represent the volumetric flow through the entire filter system (filter housing including one filter element as an example) and refer to a differential pressure of 0.3 bar. Specific information about process data is essential for reliable operation of automatic filters.
Important information about the performance curve! This is an example of a filter element of the type AF6016. The number of filter elements can be read from the type number key, see section 6.