Waterproof and breathable valve
In the vast system of modern industry and technological products, the waterproof and breathable valve, despite its small size, holds a pivotal position. It is a precision component that integrates the functions of waterproofing and ventilation, specifically designed to address the protection and pressure balance issues of equipment in complex environments.
Structurally, the waterproof and breathable valve mainly consists of a housing and a core breathable membrane. The housing is usually made of sturdy and weather - resistant materials, such as engineering plastics or metal alloys, which can withstand external physical impacts and chemical corrosion. The breathable membrane, on the other hand, is the key to its unique functions. It is made of special polymer materials and has a nanoscale microporous structure. These micropores allow gas molecules to move freely through, enabling gas exchange between the inside and outside of the equipment, while effectively blocking liquid water molecules, thus ensuring the waterproof performance.
Take smartphones as an example. When the internal electronic components of a smartphone are working, heat is generated. If the heat cannot be dissipated in a timely manner, it will affect the phone's performance and even shorten its service life. The waterproof and breathable valve can allow hot air to escape while preventing rainwater, sweat, etc. from entering the phone, avoiding malfunctions such as short - circuits. In the automotive field, the engine generates a large amount of heat and pressure during operation. The waterproof and breathable valve, installed on relevant components in the engine compartment, can balance the pressure and prevent seals from being damaged due to pressure differences. Moreover, in car headlights, it can prevent the formation of fog, ensuring clear lighting for night driving.
Thanks to its unique structure and performance, the waterproof and breathable valve has become the guardian of the stable operation of numerous devices. It plays an irreplaceable role in different fields and lays a solid foundation for the development of modern technology and industry.
precision instruments

L |
L1 |
H |
Ø |
MP |
21 |
10 |
17 |
17.2 |
M12*1.5 |
Product dimensions
Air permeability |
10ml/min atp=1KPa |
Water - blocking pressure |
-120mbar(>1M) |
Operating Temperature |
-50S℃~150℃ |
Protection level |
IP68 or IP67 |
FAQ
Q:Are you manufactory or trade company?
A:We are manufactory specialized in pratective vent and have the direct price!
Q:What is the price?
A:Please leave your whatsapp or email address. We will send details to you.
Q: Is there after-sales guarantee for the purchase of Xi 'an Hoan Microwave Co.,LTD?
A:Yes, we provide perfect after-sales service, if you encounter any problems in the process of use, you can contact us, there will be professionals for you to solve.
Q:How do you ship the goods and how long does it take to arrive?
A:We usually ship by DHL, UPS, FedEx or TNT if sample. It usually takes7-10 days to arrive. If big order will ship by sea.