Compressed Air Dryers DPA Series 0 pages

> Double optimisation of the consumptions in line with the production type. The control permits to manage the
airflow on 7 levels, self-adjusting the dryer’s functioning according to the quantity of material present. The system thus
avoids wastage of energy as well as of compressed air.
> Self-adaptation of the working parameters. Thanks to the Material Database included in the standard
configuration, the control automatically regulates the process conditions once the material has been selected and
the hourly throughput has been set.
> Dew Point values up to -40°C. The DPA 10-20-30 models are also available in the C configuration (DPA 10C- 20C-
30C), complete with optional desiccant towers, which permit to extend the unit’s application range. The regeneration
process is carried out without heat, by means of compressed air supply.
> Control of correct dehumidification. The electronic system of the DPA dryers includes the Drying Control function. It
Exclusive technical features
The DPA compressed air dryers are formed by a compact box which includes the power
and the electronic control for managing the temperature and other functions. By using
dehumidified and oil-free compressed air with pressure at 5 to 7 bar, the DPA dryers reach
Dew Point values of -25°C, suitable for most polymers. The dryers of the DPA Series can
be combined with a glass drying hopper with a capacity of 1, 3 or 6 dm3 or with a stainless
steel insulated drying hopper (with a volume of 10, 20 or 30 dm3).
continuously checks the loading times of the drying hopper and the drying times,
and it signals critical events.
> Open Material Database, containing 50 materials complete with pre-defined
set values for optimal processing. The database can be modified, customised
and integrated with new data in line with the customer’s production.
> Maximum possibility of inspection. In all models, the drying hopper is equipped
with removable diffusing cone, for cleaning operations for simple and rapid material
changes.
DPA 3 model
DPA 1 unit with glass hopper
Simplified cleaning operations
Compressed Air Dryers
DPA Series
The new Piovan Dryers of the DPA Series use compressed air for
the treatment of hygroscopic polymers. The range consists of 6
models, with a drying capacity ranging from 0.2 to 25 kg/h. The
average Dew Point value is of -25°C, which can be extended up
to -40°C in the configuration with desiccant towers. The DPA units
are ideally suited for application on injection moulding and blow
moulding machines, with small-medium throughputs.