Low Cost Passive Self-Pumping™
Dehydrator
Model RCD™–2 Passive Self-Pumping™
Dehydrator
(PDF
Version  )
BENEFITS
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Keep waveguide and coax dry
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FEATURES
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Low Cost
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Reliable |
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No power required
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Long desiccant life |
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Self pressurizing
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Simple Installation |
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Desiccant indicates when to regenerate/replace |
DESCRIPTION
Although it contains just one moving part, the Patented
RCD–2 Passive Dehydrator dries waveguide and coax
in fixed, mobile and solar powered systems with volumes
up to one cubic foot. It eliminates the need to operate
pressurization equipment from emergency power when used
as a backup for mechanical systems. The RCD–2
may also be used to protect equipment from moisture
damage during transit and unheated storage.
The RCD–2 provides a 1/8" male NPT fitting.
Gas diffusion insures that the desiccant is exposed
to any water vapor present in the system. The RCD–2
works best when the waveguide or coax system is tightly
sealed.
The RCD–2 uses ambient temperature variations
for pressurization. When the temperature drops, the
system pressure becomes negative which opens the RCD–2’s
check valve. Ambient air is drawn in through the desiccant.
Internal pressure increases with ambient temperature,
closing the check valve and pressurizing the system.
The RCD–2 employs a blend of silica gel and activated
alumina desiccants. This combination provides effective
drying while indicating when desiccant regeneration
is required. The desiccant can either be replaced or
regenerated by heating in a convection oven. Depending
upon the system volume and tightness along with environmental
conditions at the site, the desiccant lasts 12 to 18
months, or longer, before requiring regeneration or
replacement. Conditions such as a leaky system and damp
climate may reduce desiccant longevity.
SPECIFICATIONS
| Maximum dehydrated volume |
One cubic foot |
| Desiccant replacement/regeneration interval |
Typically 12 to 18 months, or more |
| Rated pressure |
Up to 8 psig |
| Maximum pressure |
20 psig |
| Desiccant system |
Blend of activated alumina and silica gel that
indicates when service is needed |
| Check valve sensitivity |
Nominally 0.1 psig |
ORDERING INFORMATION
Order
Number - Description
17963 - RCD–2 Passive Dehydrator
18018 - RCD–2 Users Manual
18024 - RCD–2 Replacement Desiccant
18038 - Plastic Elbow, 1/8" Male NPT to 1/4"
Barb Hose
18039 - Plastic Tee, 1/8" Male NPT to (2) 1/4"
Barb Hose
18040 - Brass Straight, 1/8" NPT to 1/4" Barb
Hose
18041 - Female Coupling, 1/8" Female NPT
18042 - Plastic Tee, (3) 1/4" Barb Hose
18043 - 1/4" I.D. PVC Tubing
18051 - Tape, Teflon
LIMITED WARRANTY
ETI's two year limited warranty covering defects in workmanship
and materials applies. Contact Customer Service for complete
warranty information.
DISCLAIMER
Environmental Technology, Inc. makes no representations
or warranties, either expressed or implied, with respect
to the contents of this publication or the products that
it describes, and specifically disclaims any implied warranties
of merchantability or fitness for any particular purpose.
Environmental Technology, Inc. reserves the right to revise
this publication, and to make changes and improvements
to the products in this publication, without the obligation
of Environmental Technology, Inc. to notify any person
or organization of such revisions, changes or improvements.
The ETI logo, Snow Switch, Floorstat, Tracon, and Heat
Systems are registered trademarks of Environmental Technology,
Inc. We Manage Heat, Digital Anticipation, ComfortTouch,
Dry Floors, LCD, APS, SC, GIT, SIT, CIT, ES, HSC, FWT,
GPT, ADH, EDH, RCM, RCD, RCU, FMC, SMT are trademarks
of Environmental Technology, Inc. Copyright 2000, All
rights reserved.
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