Operating principle
CLEARPOINT® L 205 – L295 V
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Operating principle
The CLEARPOINT
®
V activated-carbon adsorber from BEKO TECHNOLOGIES GMBH functions
according to the principle of the accumulation of oil molecules on the surface and in the porous structures
of special activated carbon.
The activated carbon is in a container, through which the medium flows continuously top down.
The compressed air, from which the oil fractions need to be removed, enters the device through the
upper connection at the container.
Prior to that, the compressed air must have been filtered at least through a prefilter (residual oil aerosol
content 0.01 mg/m³ at +20°C) and should not exceed a relative humidity of 30% and a temperature of
+35°C. The service life of the activated-carbon adsorber will be reduced when these values are
exceeded. Therefore, the employment of a refrigeration dryer or even an adsorption dryer upstream of
the activated-carbon adsorber is required.
The compressed air flows through a compressed-air distributor and travels top down through the volume
filled with activated carbon. During this process, the activated carbon adsorbs the majority of the oil
aerosols and the oil vapour. Subsequently, the compressed air purified in this manner flows to the outlet
through the lower compressed-air distributor.
This process takes place without regeneration phases. The activated carbon is thus gradually saturated
with oil molecules and therefore needs to be replaced when the predefined service life has expired.
Activated carbon is able to reliably adsorb a wide range of non-polar hydrocarbons; there are, however,
restrictions regarding the adsorption capacity as far as polar hydrocarbons are concerned (e.g. benzene).
It must also be taken into account that abruptly changing operating conditions (pressure, volume flow)
may lead to desorption of the already intercalated hydrocarbons.
It is explicitly recommended to provide a shut-off valve both upstream and downstream of the activated-
carbon adsorber and to install a bypass around the activated-carbon adsorber. These components are
not included in the scope of delivery.
Flow chart CLEARPOINT
®
L 205 – 230 V
Flow chart CLEARPOINT
®
L 240 – 295 V
