 NEW
PRODUCTS: Click
to view Molded & Immobilized Desiccants |
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1
Feed Flow
2 Fibre Bundle and
Permeate Flow
3
Retentate Flow
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4
Sweep Flow
5 Total Air Loss
( Permeate + Sweep Flow)
6 Output Flow
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With
the advent of the aerospace and defense industries drive
for life cycle cost savings, Drytech is pursuing combination
technologies to provide longer life desiccant systems.
These systems use a combination of a membrane filter to
initially reduce the dewpoint to -40 deg. C, with the
desiccator being used as a polishing filter further reducing
the dew-point to the -65 deg to -75 deg C range, where
applications
apply. This combination increases the life of the desiccant
by up to 3-6 times its normal life depending on ambient
conditions.
Drytech
will design and supply just the combination membrane
desiccant filter or incorporate it into a self contained
compact, robust and lightweight compressor/pump package
to meet the rigors of military and aerospace applications.
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Typical
Specifications
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Options
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- Operating
Pressure Range: Inches water gauge to 50 psig or higher
- Maximum
Flow Rate: Low SCFM range
- Steady
State Flow Rate: SCCM-SLPM range
- Dew
Point -40 deg. F membrane alone
- -75
deg. F desiccant/membrane option
- PowerSupply:
12 ,24 ,28V DC or 115V AC 50/60Hz
- Minimum
Peak Power Consumption: 250Watts
- Minimum
Steady State Power Consumption: 120Watts
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- Ruggedized
enclosure
- Storage
bottle
- Electric
heat torch heaters for sub-freezing temperatures
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Applications |
Membrane
Filter Technology |
- Antenna
Pressurization
- Waveguide
Drying
- Pneumatic
System
- Pure
Air System
- Airborne
Sensors
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A
membrane filter consists of a bundle of hollow membrane microfibres.
The compressed air is passed through these hollow fibres, and
the water vapour and/or Carbon Dioxide is removed by the principle
of selective permeation through the membrane fibre wall.
A proportion of the resulting clean air, termed the 'sweep flow',
is then re-directed back along the length of the exterior of
the fibre bundle to carry away the impurities and return it
to atmosphere. The remainder of the clean dry air is then piped
away for use downstreamas depcted in Figure 1.
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