High hardness brass air vent plug with 1/8, 1/4, 1/2, 3/8 NPT or G threads, IP67 waterproof, dustproof, oil-proof, breathable function, can be used in battery boxes of new energy vehicles and hybrid vehicles.
Specifications
- Model: CCHN-MS-HT
- Material: Brass Nickel Plated
- Temperature Resistance: -40℃ to 125℃
- Moisture Permeability: >5000g/24H.M2
- Hydrostatic Pressure Resistance: ≥100mbar for 30min
- Protection Level: IP67
- Features: Dustproof, Hydrophobic, Breathable, Heat Dissipation
Dimension (Unit: mm)

Details
| Specifications |
Air Permeability |
Thread Length |
Total Length |
Thread Diameter |
Wrench Diameter |
| G1/8 |
≥1200ml/min/@70mbar |
8mm |
17mm |
10mm |
14mm |
| G1/4 |
≥1500ml/min/@70mbar |
8.5mm |
17.5mm |
12mm |
16mm |
| G3/8 |
≥1700ml/min/@70mbar |
10mm |
19mm |
16mm |
20mm |
| G1/2 |
≥1700ml/min/@70mbar |
10mm |
19mm |
20mm |
22mm |
| 1/8 NPT |
≥1200ml/min/@70mbar |
8mm |
17mm |
10mm |
14mm |
| 1/4 NPT |
≥1500ml/min/@70mbar |
8.5mm |
17.5mm |
12mm |
16mm |
| 3/8 NPT |
≥1700ml/min/@70mbar |
10mm |
19mm |
16mm |
20mm |
| 1/2 NPT |
≥1700ml/min/@70mbar |
10mm |
19mm |
20mm |
24mm |
| G5/8 |
≥1700ml/min/@70mbar |
10mm |
19mm |
G5/8 |
22mm |
Applications
CCHN air vent plugs can be widely used in battery packs and battery boxes of base station equipment, new energy electric vehicles, hybrid vehicles, the solar energy industry, high-power energy storage equipment, and various outdoor electrical equipment products.

Tips: What material is the vent plug made of?
-
Stainless steel vent plugs are durable and corrosion-resistant, ideal for harsh and marine environments、
- Brass vent plugs offer good corrosion resistance and are common in plumbing and fuel systems
-
Aluminum vent plugs are lightweight and suitable for general industrial use
-
Nylon vent plugs provide good chemical resistance for lighter-duty applications.