1. The product is made of nickel-plated brass, stable and reliable, not easy to damage, long service life
2. The products are suitable for outdoor lamps, automobiles, cameras, photovoltaic equipment, communication equipment
3. Thread design, easy to integrate into your equipment, reduce seal design and maintenance costs, save space and other features
4. The nut is provided with a plurality of air holes, which can balance the pressure difference in the same time
5. When the thickness of the cavity body is less than 3mm, it is recommended to use nuts to fix the cavity; When it is necessary to install two water-proof ventilation valves ED respirators, the opposite direction plays an air convection effect
After installing the water-proof ventilation valve, the external impurities such as sand, ash, water droplets, and oil will be isolated in the outside of the chamber, and the air will enter or discharge freely with the internal and external pressure difference of the chamber to ensure the balance of internal and external pressure in the chamber
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