Adsorber VV-R

The GIEBEL adsorbers of the VV-R series are cost-effective solutions which are constructed without valves. Due to the low differential pressure, this adsorber can also be used to ventilate plastic tanks without problems. The adsorbers of this series are filled with 0.1 to 4.6 kg of the desiccant silica gel and therefore have a water absorption capacity of up to 1.84 l. A 3μm filter is used to additionally purify the sucked in air. An activated carbon layer adsorbs oil mist and protects the desiccant and the environment from contamination.

The Adsorbers VV-R are refillable and can be filled with fresh desiccant within a few minutes. The possibility of exchanging the desiccant and wear parts leads to very low operating costs. The use of a refillable version is particularly useful for systems with a permanent air exchange and a shorter service life.

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Hydraulic Power Packs			Gears			Barrels & IBC

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METHOD OF OPERATION

Drying of supply air - Adsorption

• Level in the system drops
• Humid air is sucked in
• Air flows into adsorber without pressure
• Uniform flow
• Air is dried to 2%rh
• Silica gel discolours
• Air is filtered up to 3μm

Dry and clean supply air!

Separation of oil particles - Desorption

• Filling level in the system increases
• Dry exhaust air containing oil is expressed
• Activated carbon absorbs oil mist
• Dry, oil-free air regenerates the silica gel
• Silica gel partially discolours back

Self regeneration and oil-free exhaust air!

Technical Data

The sucked-in air flows into the adsorber almost without pressure. After flowing into the adsorber, the air is distributed evenly over the cross-section. The pre-filter disc removes coarse dirt particles from the air already at this stage.
When the desiccant silica gel flows through, the water molecules are reliably removed from the air. The gap volume of the granulate is optimally selected with 2 to 5mm grains. This guarantees a minimum pressure build-up and at the same time very good drying efficiency. Thus, at the beginning of the drying process a residual air humidity of max. 2 % rH and a dew point of -40 °C is achieved. Due to the water absorption, the silica gel in the standard version turns from orange to green, indicating the end of the product life cycle. At the end a 3 µm filter ensures that all dirt particles are separated from the ambient air and the silica gel and that the connected system is not contaminated.

With the outflowing air the GIEBEL specific two-stage spill protection prevents larger oil droplets from penetrating into the desiccant. This is supplemented by the activated carbon, which adsorbs the finest oil particles and thus enables the adsorber to regenerate itself.

These adsorbers consist of polycarbonate, polyamide, aluminium, silica gel orange, FKM and can be used for the aeration of all common hydraulic and gear oils and lubricants, fuels, isocyanates. The GIEBEL team is at your disposal for the clarification of resistances.

PRESSURE DIFFERENCE

EXECUTIONS - ADSORBER VV-R

Adsorber	VV-R 1L	VV-R 2M	VV-R 2L	VV-R 3M	VV-R 3L	VV-R 5M	VV-R 5L	VV-R 5XL
Total weight [kg]	0,3	0,9	1,2	1,7	2,3	3,7	5,1	6,6
Adsorbens [kg]	0,2	0,3	0,5	0,8	1,4	2,2	3,3	4,6
Max. Water absorption [ml]	80	120	200	320	560	880	1320	1840
Height [mm]	141	176	234	249	325	287	387	487
Diameter [mm]	60/63	90/121	90/121	110/141	110/141	150/181	150/181	150/181
Connection	BSP, NPT,Metric	BSP, NPT,Metric, Slipfit
Valves [IN - OUT]	0 - 0	0 - 0	0 - 0	0 - 0	0 - 0	0 - 0	0 - 0	0 - 0