DEX HEATED REGENERATIVE DRYER SECTION 3
14
3.1 TYPE OF CONSTRUCTION
• Designed for operation indoors in a Non-
hazardous location. The electrical equip-
ment is constructed to Nema 12 standards.
• Fully automatic, external heat regenerated
twin tower dryer.
3.2 AMBIENT CONDITIONS
3.3 OPERATIONAL DATA
3.3.1 ADSORPTION
3.3.2 REGENERATION
3.3.1 COOLING
3.4 PRESSURE VESSEL DESIGN
AND CONSTRUCTION DATA
The desiccant chamber pressure vessels are
constructed to the latest edition of the ASME Code,
Section VIII, Division 1.
3.4.1 DESICCANT CHAMBERS
3.4.2 PREFILTERS AND AFTERFILTER
3.5 PIPE MANIFOLD DETAILS
Atmospheric Pressure 14.7 PSIA
Ambient Temperature Minimum 40°F
Ambient Temerature Maximum 105°F
Medium Compressed Air
Condition Free from dirt, oil,
condensation and aggressive
contaminants
Inlet Flow _____scfm
Inlet Pressure 100 psig (minimum)
Adsorption capacity Saturated inlet air at
100°F
Outlet pressure
dewpoint
-40°F
(with dry air cooling)
Desiccant type Activated Alumina (F-200)
Amount per vessel _____lbs
Medium Atmospheric air
Nominal flow rate _____scfm
Regeneration
temperature
400°F
Regeneration time 180 minutes maximum
Medium Compressed air or ambient air
Nominal flow rate _____scfm
Cooling air
temperature
100°F maximum
Cooling time 60 minutes
Design pressure 200 psig
Design temperature 400°F
MDMT -20°F at 150 psig
Materials of
construction
SA516 Gr.70, SA53 Gr.B,
SA105
Design Pressure 232 psig
Design temperature -20 to 250°F
Materials of
Construcion
Cast aluminum, up to 1500
CFM (Carbon Steel
ASME Coded)
Wet air inlet _____inch sch. 40 pipe
Dry air outlet _____inch sch. 40 pipe
Regeneration outlet _____inch sch. 40 pipe
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