Description; Intended Use Of The Ln, Gl, Bf, Rf, Df, Tfs, Fp And Fpv Series; Intended Use To W3, Din En Iso 15012-1 / -4 , Dust Category H, Din En Iso 60335-2-69 Aa; Notes On W3 (Iso 15012) And Dust Category H (En 60335-2-69 Aa) - TBH RF Serie Instructions D'utilisation Et D'entretien

2. Description

TBH extraction and filter systems are intended for commercial use, for example in schools,
universities, factories, laboratories, etc.
2.1 Intended Use of the LN, GL, BF, RF, DF, TFS, FP and FPV
Series
The extraction and filter systems of the LN, GL, BF, RF, DF, TFS, FP and FPV series are
intended for the extraction of dust and smoke.
They may not be used for the extraction of burning or glowing substances, highly flammable
or explosive gases, aggressive media, explosive dusts and aluminium grinding dust, or for
the extraction of liquids of any type.
2.1.1 Intended Use to W3, DIN EN ISO 15012-1 / -4 , Dust Category
H, DIN EN ISO 60335-2-69 AA
Filter and extraction systems with W3 label are suitable for welding work and related
processes or if smoke containing KMR materials is expected (e.g. when welding high-alloy
steels or welding additives with more than 5% (Cr, Ni)). (except gouging and grinding).
TBH filter and extraction systems are also designed for extraction with automated laser
welding processes, laser marking processes, laser cutting processes or similar and are not
intended for use in conjunction with hand-held torches (e.g. MIG MAG or TIG welding
equipment).
For extraction of glowing particles and sparks, an effective spark trap or spark suppression
device must be installed upstream of the extraction and filter system.
2.1.2 Notes on W3 (ISO 15012) and Dust Category H (EN 60335-2-
69 AA)
Systems for extraction from welding processes or similar processes, which, for example, fall
under (DE) TRGS528 or TRGS560, must be labelled "W3" in accordance with DIN EN ISO
15012 and meet the separation degree "H" in accordance with EN60335-2.
TBH filter and extraction systems with "W3" label meet these requirements.
Exhaust-air Conductance (into the Open) & Dust Suspension
Depending on the application, it must be checked whether exhaust-air conductance (into the
open) is possible/necessary. However, recirculation operation (independent of
filters/approvals/manufacturers) is only permitted if the extraction and filter system is
operated at different locations and exhaust air operation (into open) - for operational reasons
- is not possible or proportionate (see TRGS560, Section 3). A few substances, according to
GefStoffV, are generally excluded from recirculation operation due to their high hazard (see
TRGS560, Section 3) - but must nevertheless be filtered before discharged to the open.
Description
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