Waveguide
Passive Dehydrator

  See Also:
W/G Pressurizing Sections
W/G Assemblies - Straights and Twists

ATM manufactures a selection of W/G Passive Dehydrators ranging from WR28 to WR650.  For more information feel free to call us and discuss your needs with one of our design engineers.

 


 

Atm Passive Dehydrators provide cost-effective drying of small volume waveguide systems.  It can also be used for backup dehydration in larger systems, eliminating the need to run a pressurized system on emergency power. 

The components employ a desiccant drying system which lasts 12 to 18 months, or more, before needing service, depending on environmental conditions and system volume and tightness.  The desiccant material is designed to change color over time, indicating a need for regeneration, which is easily accomplished  by heating the material in a convection oven.

Typical Applications for Waveguide systems should be limited to 11 feet in length, or a max of 1 cu. foot for best effectiveness.

The Canister Assembly is mounted to the Waveguide Broadwall,  and is designed to be mounted with canister facing sideways or down as shown.

• Low cost
• Reliable
• Simple installation
• 12 - 18 months typical service life
• Material color-change indicates need for service
• 8 psig pressure rated, 20 psig max
• Temp. Range: -55°C to +110°C

Standard Models
W/G Size Freq. (GHz) Standard Model No. Length

Dim A (inches)

Dim B

approx. (inches)

WR650 1.12 - 1.70 650-213A-2-2 4.00 8.9
WR430 1.70 - 2.60 430-213A-2-2 4.00 8.3
WR340 2.20 - 3.30 340-213A-2-2 4.00 8.1
WR284 2.60 - 3.95 284-213A-6-6 4.00 7.9
WR229 3.30 - 4.90 229-213B-2-2 4.00 7.8
WR187 3.95 - 5.85 187-213A-6-6 3.00 7.7
WR159 4.90 - 7.05 159-213B-2-2 3.00 7.7
WR137 5.95 - 8.20 137-213B-2-2 2.25 7.6
WR112 7.05 - 10.0 112-213B-6-6 2.25 7.5
WR90 8.20 - 12.4 90-213A-6-6 2.25 7.5
WR75 10.0 - 15.0 75-213B-6-6 2.25 7.6
WR62 12.4 - 18.0 62-213B-6-6 2.25 7.4
WR51 15.0 - 22.0 51-213B-6-6 2.25 7.4
WR42 18.0 - 26.5 42-213B-6-6 2.25 7.3
WR34 22.0- 33.0 34-231B-6-6 2.25 7.3
WR28 26.5 - 40.0 28-213B-6-6 2.25 7.3

 

Replacement Desiccant Cartridge

Extra canisters can be ordered using the model number to the right. This is the standard spare canister for all waveguide sizes.

Model No.
PHC100

 


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