Additional operating instructions according to ATEX 2014/34/EU for FKF particle filter box
07/06 - 4
Construction subject to change. No return possible!
06.12.2021Version:
Description
The FKF particle filter box with fluid seal on the filter cell has
been specially developed for use in cleanrooms as required by
the pharmaceutical, electronic, precision mechanical and optical
industries in hospitals and laboratories. The integrated particle
filter (to DIN EN 1822) removes particles, radioactive dust,
mist, bacteria, viruses, etc., from the supply or return air.
This ensures that the incoming and outgoing air flows are ex-
tremely clean and germ-free.
The fluid is located at the filter cell and pressed into a sealing
device especially developed for this purpose in the filter box
when the filter cell is installed. Owing to the properties of the
fluid, the filter cell can be mounted and dismounted several
times without having to change the fluid.
The filter box, type FKF-... , consists of electrolytically galva-
nised sheet steel painted to RAL 9010 (white) or stainless steel
V2A (1.4301) with a round connection spigot for hose connec-
tion while the type FKF-Q-... has a rectangular spigot with con-
nection flange. A filter pressure device in the filter box ensures
a safe seal. As a standard feature, a differential pressure and
aerosol monitoring device is integrated in the particle filter
box.
Optionally, the particle filter boxes FKF-H-... are additionally
equipped with a shut-off damper sealing air-tight. This shut-off
damper can be adjusted manually from below after the air dif-
fuser is removed. Leakage at closed shut-off damper according
to DIN EN 1751, class 4, at a duct pressure of up to 1000 Pa. An
electric actuator is not available. As an alternative, a SCHAKO
DKA-L in ATEX version can be used outside the filter box.
Attention!
We would like to point out that we supply the filter boxes with
integrated spacers for fitting the filter clamps and the diffuser
assembly pole brace. This makes it possible to fit the air diffuser
without additional expense, even when the filter has not yet been
inserted into the filter box.
The assembly of the air diffusers is effected via magnetic fasten-
ing. This allows the air diffusers to be easily taken off for filter
replacement and decontamination without requiring tools. The
following ceiling air diffusers in supply and return air models are
suitable to be fitted to the particle filter box type FKF: FDQJ,
FPIL, FDAV. Magnetic fastening is generally not possible for
FPIL and FDAV and for air diffusers made of aluminium and
stainless steel. These air diffusers are mounted via central fas-
tening (-VM).
If required, the suitable particle filters can be included in the de-
livery.
Sealing on the particle filter
The filter boxes in stainless steel design 1.4301 are
delivered together with the air diffuser FDQJ made of stainless
steel. FPIL and FDAV are not available in connection with parti-
cle filter boxes made of stainless steel.
The particle filter box has the following ATEX marking:
This particle filter box meets the regulations of the ATEX direc-
tives and can be used in ventilation systems in areas subject to
explosion hazards.
The particle filter box has been certified for the explosion pro-
tection group II for Zones 1, 2 and 21, 22.
Zones 1 and 2 represent the application range containing gases,
while Zones 21 and 22 represent the application range contain-
ing dusts.
Classification by zone must be established by the system oper-
ator or planner in compliance with current standards.
Note:
In explosion-protected zones, only devices that have an ATEX
approval for this use may be used.
Technical data, information
- The grounding terminals of the particle filter box must be
connected to the equipotential bonding.
- It rests with the operator to ensure that the products are only
used in zones specified by the product marking.
Fluid
(in filter housing)
II 2G Ex h IIB T6 Gb
II 2D Ex h IIC T80°C Db EPS 09 ATEX 2 154 X
