Waveguide Feed-through (Pipe Penetrations)

iWaveGuidePipePen

ETS-Lindgren's Waveguide Feed-throughs are available in most sizes for water, gas, or air.

ETS-Lindgren's Waveguide Feed-throughs are available in most sizes for water, gas, or air. Specially designed waveguide feed-through assemblies are used for transporting non-conductive gases or liquids into an enclosure.

Key Features
  • Accommodate Requirements Such as Fire Suppression Systems, Hydraulics, and other Utilities
  • Honeycomb Waveguide Insert Option Available for High Frequency or Gaseous Applications
  • Dielectric Unions are Available to Maintain Isolation to the Ground
Product Details
Physical Specifications
Waveguide Feed-through Part Number
With Dielectric Option Part Number
Nominal Pipe I.D. Length
Installation Hole Size
551060
551084
1.27 cm (.5 in)
15.24 cm (6 in)
2.22 cm ( .875 in)
551061
551085
1.91 cm (.75 in)
15.24 cm (6 in)
2.86 cm ( .125 in)
551062
551086
2.54 cm (1 in)
15.24 cm (6 in)
3.49 cm (1.375 in)
551063
551087
3.175 cm (1.25 in)
15.24 cm (6 in)
4.46 cm (1.75 in)
551064
551088
3.81 cm (1.5 in)
15.24 cm (6 in)
4.92 cm (1.9375 in)
551065
551089
4.08 cm (2 in)
20.32 cm (8 in)
6.35 cm (2.5 in)
551066
551090
6.35 cm (2.5 in)
20.32 cm (8 in)
7.30 cm (2.875 in)
551067
551083
7.62 cm (3 in)
30.48 cm (12 in)
9.21 cm (3.625 in)
551068
551091
8.16 cm (4 in)
40.64 cm (16 in)
11.75 cm (4.625 in)

For circular waveguides:
fc = c/3.412r

where:
fc = cutoff frequency
c = speed of light, 1.181 x 1010 in/s
r = radius of circular waveguide in inches

General Rule of Thumb:
For circular waveguides, make sure the waveguide length is at least four times the diameter.

Electrical Specifications
Diameter of Waveguide
Frequency Cutoff
1.27 cm (.5 in)
13.8 GHz
1.91 cm (.75 in)
9.2 GHz
2.54 cm (1 in)
6.9 GHz
3.175 cm (1.25 in)
5.5 GHz
3.81 cm (1.5 in)
4.6 GHz
4.08 cm (2 in)
3.5 GHz
6.35 cm (2.5 in)
2.8 GHz
7.62 cm (3 in)
2.3 GHz
8.16 cm (4 in)
1.7 GHz

For circular waveguides:
fc = c/3.412r

where:
fc = cutoff frequency
c = speed of light, 1.181 x 1010 in/s
r = radius of circular waveguide in inches

General Rule of Thumb:
For circular waveguides, make sure the waveguide length is at least four times the diameter.