Brochure

6
PNEUDRI - four key features
guarantee air quality
Modular aluminium design
Aluminium extrusions are used throughout for drying
chambers and distribution manifolds. is design allows
the desiccant material to be retained within the drying
chambers.'Snowstorm' lling, prevents movement of the
desiccant material during operation and also eliminates
desiccant attrition and breakdown which could lead to a
loss of pressure dewpoint.
OIL-X EVOLUTION ltration
Adsorption dryers are designed for the removal of water vapour and not liquid water, water
aerosols, oil, particulates or micro-organisms. Only by using Parker domnick hunter OIL-X
EVOLUTION pre and after ltration can the removal of these contaminants be assured and air
quality in accordance with all editions of ISO8573-1 be guaranteed.
Adsorbent desiccant material
Speciallyselecteddesiccantmaterialsprovide:
• Optimumadsorptionandregenerationcapacity-toensureconsistentdewpoint
• Lowdusting-topreventblockageofdownstreamltration
• Highcrushstrength-topreventbreakdownofthedesiccantduringoperation
• Highresistancetoaggressiveandoil-freecondensate-forcompatibility
withalltypesofaircompressor,theirlubricantsandcondensate
'Snowstorm' filling method
Unique to Parker domnick hunter modular dryers is the
snowstorm filling technique used to charge the drying
chambers with adsorbent desiccant material.
The benefits are:
• Achievesmaximumpackingdensityforthe
desiccantmaterial,fullyutilisingalloftheavailable
spaceenvelope
• Preventsairchannellingthroughthedesiccant
asexperiencedwithtwintowerdesigns.Due
tochannelling,twintowerdesignsrequiremore
desiccanttoachieveanidenticaldewpoint,
increasingphysicalsize,operationaland
maintenancecosts
•Preventsdesiccantattritionwhichcanlead
todusting,blockedfiltersandlossofdewpoint
•Allows100%oftheavailabledesiccantmaterialto
beusedfordrying,thereforereducingtheamount
ofdesiccantrequiredandmaintenancecosts
•100%ofthedesiccantisregeneratedensuring
consistentdewpoint
•Providesalow,equalresistancetoairflow
allowingmultipledryingchambersandmultiple
dryerbankstobeused,afeatureonlyavailable
withPNEUDRI
Loose filled bed
Inconsistent drying and
desiccant attrition
Snowstorm filled bed
Consistent drying with
no desiccant attrition
'Snowstorm' filling
ensures consistent
dewpoint performance