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Translation of the original instructions with assembly instructions AF 73 - 76 S/AF 93 - 96 S, Filtration Group GmbH, 11.07.19,
Mat. No. 79301615, Version 13
5
Intended application
DANGER!
PROHIBITED:
Use for other purposes without prior consultation with
the manufacturer.
Use in potentially explosive atmospheres, unless
explicitly mentioned in the contract documentation.
Use with smouldering, burning or adhesive particles.
Use with highly explosive dusts (e.g. aluminium dust,
explosives, etc.).
CAUTION!
This FG metal-edge filter is only allowed to be used in
accordance with the operating conditions specified in the
contract documentation and in the Instruction Manual. All
forms of use which deviate from or exceed the limits of
use described above are considered to be contrary to the
intended purpose. The manufacturer shall not be liable
for any damage resulting from such use.
CAUTION!
Conditionally allowed:
Use of solvents in consultation with the manufacturer.
Reverse flow through the filter (pressure < 0.6 bar).
FG metal-edge filters are designed for filtering liquids or
pastes with a viscosity of up to 500,000 mPas. They can be
cleaned without interrupting operation. The cleaning process
can be either manual or automatic.
Types of application:
CLM filtration
Product filtration
Pre-separation within filter cascades
Protective filtration before or after certain process steps
Process filtration
Destruction of unwanted agglomerates
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Functional description
6.1
Principle of the process
Filtration
A triangular-shaped wire is wound immovably on a
threaded, profiled support tube. The thread lead determines
the gap width and thus the fineness of the filter. The
suspension flows inwards through the filter element. The
particles settle on the outside of the element. The triangular
geometry results in a significant increase in the cross-
section after the narrowest gap. Clogging is thus practically
impossible.
Fig. 1: Principle of separation at the filter element
Cleaning
The particles that settle on the cartridge or on the split tube
cause the differential pressure between the muddy side and
the clean side of the filter element to increase.
If this pressure difference exceeds a (settable) limit value, a
cleaning process is started. The filter element begins to
rotate. The scraper scrapes the filter cake off of the filter
element.
Fig. 2: Cleaning
Filter element
Profiled support tube
Narrowest gap
Increase in cross-section
Triangular
wire winding
Filter cake
Scraper
Profiled
support
tube
