GD Dual Technology Dryer

The Gardner Denver GDDT dryer series with
Dual Technology – an innovative family of
dryers for compressed air from 2.5 to
34m³/min
"Dual Technology" combines two drying techniques, to form an
optimised and unique compressed air treatment package –
refrigeration technology / adsorption technology.
This technology combination provides efficient drying performance
with significantly lower energy levels when compared to traditional
adsorption dryers.
Patented product features and operation mean the GDDT dryer
series can provide a constant
dew point (-40°C as standard) using extremely low amounts of purge
air. By simply setting the
required dew point on the control panel the dryer can operate from
+3°C pdp (ISO Class 4)
to -70°C pdp (ISO Class 1), in an efficient and economical manner.
– Lower operating costs vs. traditional heatless and
heatregenerative adsorption dryers
– Reduced maintenance costs due to less desiccant-fill with
extended life time
– Exemption from periodic vessel inspection
– Constant dew point performance – no peaks above set-point
– "Dial-a dew point feature" for seasonal operation (by-pass Option)

– Additional energy savings at partial load – (dew-pointdependent-
switching)
– Compact overall dimensions – small footprint – space saving.