Pressure Compensation Plug BDN Series from Hammond Manufacturing
March 3, 2026
Pressure Compensation Plug BDN Series from Hammond Manufacturing
The BDN series pressure compensation plug from Hammond Manufacturing provides controlled pressure compensation caused by temperature variations, such as night and day operations. When mounted to bottom of enclosure, this unique design provides a method of effectively draining moisture from within the enclosure.
- Packaged individually.
- Provides for controlled pressure compensation due to temperature variations (i.e. night/day operation).
- When mounted to bottom of enclosure, this unique design provides a method of effectively draining moisture from within the enclosure
- Recommend two plugs per cabinet in opposite locations.
- Pipe Thread M20 x 1.5 (minimum cutout 20.2 mm / 0.80 inches)
- Recommended Torque 10 NM
Note: Due to circumstances beyond Hammond Manufacturing’s control, the non-metallic breather drain, part #BDN4XN1, is temporarily unavailable and no new supply expected in the near term. Please see below for alternative suggestions.
Part Details
Click Part No, below, for details (e.g., Product drawings, assembly instructions, ship weight)
Part numbers with stars are new sizes or packaging configurations.
Units shown: mm.
BDN4XN1 | BDN4XS16 | |
|---|---|---|
| CSA/A Ex Approvals: | Class I, Zone 1, Ex e II | Class I, Zone 1, Ex e II |
| Class I Division 2 Groups ABCD | Class I Division 2 Groups ABCD | |
| Class II EFG, Class III | Class II EFG, Class III | |
| Ingress Protection: | IP66, CSA Enclosure Type NEMA 4X | IP66, CSA Enclosure Type NEMA 4X |
| Impact Resistance: | 20Nm (7Nm GF Nylon) | N/A |
| Materials: | Durethan BKV 30 N1 30% Glass Filled Nylon | 316L Stainless Steel |
| O Ring – Nitrile | O Ring – Nitrile | |
| Fixing nut – Brass | Fixing nut – 316L SS | |
| Operating Temp: | -50C to +85C | -30C to +100C |
More Information
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