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Bulkhead Feed-Through
Bulkhead Feed-Through
PENN ENGINEERING'S Bulkhead Feed-Throughs will assist when a waveguide system must pass through a pressurized wall or cabinet. A heavy mounting flange and a gasket provide secure sealing. Brass units are Silver plated per QQ-S-365D Class A, Aluminum units are Chem-film per MIL-C-5541E, and both are finished with PENN ENGINEERING'S Metallic Blue Paint.
Special Bulkheads are available upon request.
| Model # | Waveguide Size EIA |
Frequency Range GHz |
"A" | "B" | "C" | "D***" | "L" |
| 4256 | WR 284 | 2.60-3.95 | 1.625 | 7.25 | 6.5* | 5.5 | 4.25 |
| 4254 | WR 229 | 3.30-4.90 | 1.625 | 6.750 | 6.00* | 5.00 | 4.25 |
| 4252 | WR 187 | 3.95-5.85 | 1.625 | 5.250 | 4.625* | 3.75 | 4.25 |
| 4250 | WR 159 | 4.90-7.05 | 1.625 | 6.00 | 5.250* | 4.25 | 4.25 |
| 4248 | WR 137 | 5.85-8.20 | 1.625 | 4.750 | 4.00* | 3.125 | 4.25 |
| 4246 | WR 112 | 7.05-10.0 | 1.625 | 4.00 | 3.250* | 2.625 | 4.25 |
| 4244 | WR 102 | 7.00-11.0 | 1.625 | 4.00 | 3.250* | 2.625 | 4.25 |
| 4242 | WR 90 | 8.20-12.4 | 1.625 | 3.375 | 2.875** | 2.125 | 3.75 |
| 4240 | WR 75 | 10.0-15.0 | 1.625 | 3.375 | 2.875** | 2.125 | 3.75 |
| 4238 | WR 62 | 12.4-18.0 | 1.00 | 3.375 | 2.875** | 2.125 | 3.00 |
| 4236 | WR 51 | 15.0-22.0 | 1.00 | 3.375 | 2.875** | 2.125 | 3.00 |
| 4234 | WR 42 | 18.0-26.5 | 1.00 | 3.375 | 2.875** | 2.125 | 3.00 |
| 4232 | WR 34 | 22.0-33.0 | 1.00 | 3.00 | 2.875** | 2.125 | 3.00 |
| 4230 | WR 28 | 26.5-40.0 | 1.00 | 3.00 | 2.500** | 1.875 | 3.00 |
| 4228 | WR 22 | 33.0-50.0 | 1.00 | 3.00 | 2.500** | 1.875 | 3.00 |
| 4226 | WR 19 | 40.0-60.0 | 1.00 | 3.00 | 2.500** | 1.875 | 3.00 |
| 4224 | WR 15 | 50.0-75.0 | 1.00 | 3.00 | 2.500** | 1.875 | 3.00 |
| 4222 | WR 12 | 60.0-90.0 | 1.00 | 3.00 | 2.500** | 1.875 | 3.00 |
| 4220 | WR 10 | 75.0-110.0 | 1.00 | 3.00 | 2.500** | 1.875 | 3.00 |
*Diameter of bolt circle for 8 holes 1/4" diameter
** Diameter of bolt circle for 6 holes 1/4" diameter
*** Diameter of clearance hole in wall or panel
