The setting up of BEKO Systems was important to the BEKO group because it gave the company capability in very large dryers up to 20,000m³ /hr. The product range which is the “EVERDRY” range of heat regenerated adsorption dryers goes to the 20,000 m³ /hr stated but the company has the capability to provide solutions tailor made to customers’ needs beyond this figure.

Drying compressed air to low dew points such as -40ºC is expensive.  The desiccant medium has to go through a regeneration process in order to drive off the water adsorbed but then must be cooled down before the desiccant can start drying again. The industry standard of course is that a desiccant dryer is 2 columns filled with desiccant. The first column dries the compressed air until the desiccant is partly saturated then the other column comes on line and the wet column is regenerated and cooled.

All this takes energy and hence the trend has been, in these more energy conscious times, away from any kind of purge loss of the compressed air. In fact the ultimate solution to reduce drying costs is the HOC, heat of compression dryer. This type of dryer uses the fact that compressing air raises the temperature of the air in 2 stage non lubricated compressors to approaching 200ºC. In all other drying solutions this heat is allowed to pass downstream where it can be recovered and used but in many cases goes to waste through the cooling system.

 Heat of Compression Dryer layout
This type of dryer is gaining increased market share because it can offer low dew points and also low running costs.  Different types of compressors require different versions of HOC Adsorption dryers. The standard range of BEKO fulfils all these various requirements. The version EVERDRY HOC-R (reload) provides stable pressure dew points lower than -40ºC. Even the demand for high quality air of the electronic industry with pressure dew points of -70 ºC will be realised with the Reload procedure.

The range includes 3 other ranges of the classic twin column or tower heat reactivated adsorption dryers
Photo : HOC F-2 Desorptionphase
FRP Range of Heat Regenerated Adsorption Dryers
FRP dryer layout
Uses heated blower air to regenerate the desiccant and a small purge flow of expanded dry air to cool the desiccant. This product with fewer components is to satisfy the needs of customers who need to keep the capital costs down to a minimum.
Performance range 580-40,000 m³/hr
Dew point to -40ºC at pressure
All climate zones

Photo: FRP Desorptionsphase1
FRA Range of Heat Regenerated Adsorption Dryers
Uses heated blower air to regenerate the desiccant, cooling is by ambient air and a blower

FRA dryer layout
Performance range 580-40,000 m³/hr
Dew point to -40ºC at pressure
Suitable for moderate climate zones
Photo: FRA-VDesorption1
FRL Range of Heat Regenerated Adsorption Dryers
The FRL dryer is aimed at critical ambient conditions, normally high temperatures and includes a closed circuit loop for cooling using blower air and of course the regeneration by heated blower air.
 FRL Dryer layout
Performance range 580-40,000 m³/hr
Dew point to -70ºC at pressure
Suitable for all climate zones
           Photo: FRL-Desorptionsphase1

The FRA and FRL Ranges are available in with a reversible blower for cooling the desiccant with the benefit of fewer moving parts.
The above products together with the DRYPOINT RA range of fridge dryers, the DRYPOINT M range of Membrane dryers and the standard DRYPOINT AC heatless desiccant range complete BEKO’s offering of “drying solutions”.