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Hazardous Location Drain Vents
Safe for use around hazardous gasses and dust, these vents maintain steady pressure and prevent moisture buildup from temperature changes inside enclosures. They allow air to flow through the enclosures while protecting the contents from washdowns, dirt, and weather. Install these vents at the lowest point on an enclosure, so moisture can drip out.
Increased-safety drains keep sparks, high temperatures, or current creepage inside an enclosure, so they won’t ignite flammable gasses and dust.
Flameproof drains reduce the risk of igniting flammable gasses and dust if an explosion occurs within the enclosure.
Glass-filled nylon drains are lightweight yet durable. They’re good for most areas.
316 stainless steel drains stand up to corrosion. They’re best for areas with salt water.
For technical drawings and 3-D models, click on a part number.
| Thread Size  | Thread Pitch, mm | Height | Environmental Rating | Nut Material | O-Ring Material | Color | Maximum Temperature, °F | Specifications Met | Each | |
Increased-Safety Drains | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Glass-Filled Nylon Plastic | ||||||||||
| M20 | 1.5 | 1 1/4" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | Brass | Buna-N Rubber | Black | 185° | ATEX II 2DG IECEx Ex tb IIIC Db IECEx Exe II Gb | 0000000 | 000000 |
316 Stainless Steel | ||||||||||
| M20 | 1.5 | 1" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | 316 Stainless Steel | Buna-N Rubber | __ | 185° | ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 0000000 | 000000 |
| M25 | 1.5 | 1 5/16" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | 316 Stainless Steel | Buna-N Rubber | __ | 185° | ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 000000 | 000000 |
Flameproof Drains | ||||||||||
316 Stainless Steel | ||||||||||
| M20 | 1.5 | 1" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | __ | Silicone Rubber | __ | 300° | ATEX Ex d IIC Gb ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex d IIC Gb IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 0000000 | 000000 |
| M25 | 1.5 | 1 5/16" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | __ | Silicone Rubber | __ | 300° | ATEX Ex d IIC Gb ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex d IIC Gb IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 0000000 | 000000 |
Drain Vents
Mount to the outside of your enclosure to prevent moisture from being trapped inside. Rated NEMA 4X for protection from washdowns and corrosion.
| Ht. | Wd. | Dp. | Environmental Rating | Material | Mounting Fasteners Included | Color | Each | |
| 2 3/4" | 2" | 11/16" | NEMA 4X | Fiberglass | Yes | Gray | 000000 | 000000 |
Self-Draining Breather Vents
Minimize moisture buildup in enclosures. Also known as drain plugs, these breather vents have a small outlet that allows condensation to drain. They have a silicone O-ring above the threads for a tight seal. Install them at the lowest point of the enclosure. Breather vents meet IP66 for protection in washdown environments. Use them to prevent excess vacuum and pressure in cylinders, gear boxes, and tanks and to block debris from entering equipment.
Brass breather vents have good corrosion resistance.
316 stainless steel breather vents have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Max. Temp., °F | Ht. | Dia. | For Use With | Environmental Rating | Each | |
NPT Male | |||||||
|---|---|---|---|---|---|---|---|
Brass Body and Fitting | |||||||
| 1/2 | 320° | 15/16" | 1" | Air | IEC Zone 1 Groups IIC, IIB, IIA, IEC Zone 21 Groups IIIC, IIIB, IIIA, IP66, NEMA 4X | 0000000 | 000000 |
| 1/4 | 320° | 15/16" | 11/16" | Air | IP66, NEMA 4X | 0000000 | 00000 |
316 Stainless Steel Body and Fitting | |||||||
| 1/2 | 320° | 15/16" | 1" | Air | IEC Zone 1 Groups IIC, IIB, IIA, IEC Zone 21 Groups IIIC, IIIB, IIIA, IP66, NEMA 4X | 0000000 | 00000 |
| 1/4 | 320° | 15/16" | 11/16" | Air | IP66, NEMA 4X | 0000000 | 00000 |