Are there different models of waterproof breathable valves

1. Equal pressure equalizing valve

The equal pressure equalizing valve is a globally recognized advanced waterproof and breathable valve technology. Its main function is to maintain the pressure difference at zero or negative pressure. This kind of valve uses a complex and precise diaphragm system inside. When the external pressure is greater than the internal pressure, the valve diaphragm will bulge outward, allowing solid particles, liquids and gases to flow out. When the external pressure is less than the internal pressure, the diaphragm will dent inward to prevent the intrusion of external water and dust, while also maintaining the stability of solid particles and humidity.

2. Ceramic breathable valve

Ceramic breathable valve is another commonly used waterproof breathable valve model, which is mainly used in air-sealing equipment with very high requirements, such as communication equipment, particle filters, automated control systems, etc. The manufacturing principle of the ceramic breathable valve is to use nano-ceramic technology to achieve the breathable effect through the breathable mechanism of countless micropores. This kind of valve has a high degree of corrosion resistance, high temperature erosion performance and extremely high pressure resistance. It also has good air permeability and excellent waterproof performance.
3. SMD breathable valve

The patch-type breathable valve is a new type of waterproof breathable valve. It not only has super breathable and waterproof properties, but also has the advantages of small size, light weight, and easy installation. The patch-type breathable valve consists of two electrodes and a diaphragm in the middle. Breathing holes are formed on the diaphragm through specially treated porous polymer materials. When there is pressure inside the device, the diaphragm will be squeezed outward, causing the ventilation holes to expand, allowing air, water vapor and gas to be discharged. When there is liquid or dust from the outside attached to the ventilation holes, the diaphragm will return to its original state. , thereby preventing the penetration of external substances.