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Waveguide Pipe Penetrations

Raymond EMC offers a full line of NPT waveguide pipe penetrations designed to pass a variety of materials into or out of an R.F. Shielded Enclosure without compromising the overall R.F. Shielding Effectiveness of the enclosure.

Key Features

Standard Sizes

Waveguide  Nominal Size Waveguide OD Waveguide ID Waveguide Length 100dB Attenuation Cut-Off Frequency
3/8" 0.675" 0.423" 4" 11GHz
1/2" 0.840" 0.546" 4" 10GHz
3/4" 1.050" 0.742" 4" 6.6GHz
1" 1.063" 1.315" 4" 5.2GHz
1 1/4" 1.660" 1.368" 4 1/2" 4GHz
1 1/2" 1.900" 1.600" 6" 3.3GHz
2" 2.375" 2.063" 8" 2.6GHz
2 1/2" 2.875" 2.501" 10" 2.2GHz
3" 3.500" 3.062" 12" 1.8GHz
4" 4.500" 4.000" 16" 1.4GHz

Wide Range of Applications

Raymond EMC waveguide pipe penetrations are perfect for passing any dielectric materials/fluids through an R.F. Shielded Enclosure. 

Water, for Fire Suppression Systems
Gas, for Fire Suppression Systems
Air, for Hard Pipe Compressed Air Systems
Polyurethane (or any dielectric) tubing, for Compressed Air
Fibre Optics, for Data Transmission

It should be noted that waveguide pipe penetrations larger than ½” nominal size will no longer provide 100 dB R.F. Shielding Effectiveness at 10 GHz.

Complies with standard trade sizes

All Raymond EMC waveguide pipe penetrations are fully NPT threaded ensuring that our pipe penetrations are compatible with off-the-shelf plumbing products. This is especially advantageous for applications requiring connection of incoming rigid pipe to the waveguide pipe penetration as is typically the case for fire suppression systems where water or gas is fed into the enclosure from an outside source. A dielectric break must be installed inline with any incoming conductive plumbing to create a non-conducting break between the conductive piping and the shield to maintain the single point grounding imperative to the performance of an R.F. Shielded Enclosure.  Raymond EMC can supply any pipe penetration complete with a dielectric union coupler.

Easy Installation

All Raymond EMC waveguide pipe penetrations can be installed in a bulkhead connector panel or directly in an R.F. Shielded Panel and can be field located once an installation is complete to ensure perfect placement based on actual on-site shield dimensions. Accompanying flange nuts tightened on either side of the shield ensure an R.F.-tight fit.