Waterproof and breathable valve series
The automotive industry is one of the most important application fields of waterproof breathable valves. In modern vehicles, almost every key component, from the engine system and headlight assemblies to the electronic control units and sensor modules, requires the protection of waterproof breathable valves. This extensive application stems from the special operating environment of automobiles and the stringent requirements for reliability.
In the automotive engine system, waterproof breathable valves play a vital role. The Engine Control Unit (ECU), known as the "brain" of the vehicle, has extremely strict requirements for its working environment. The waterproof breathable valve is installed on the ECU housing. It can not only prevent water from seeping in during car washing or rainy days but also promptly discharge the heat and moisture generated inside, ensuring the stable operation of the ECU. Similarly, in the headlight system, the waterproof breathable valve effectively prevents the formation of water mist by balancing the internal and external pressures, maintaining the lighting effect of the headlights.
Product dimension

L | L1 | Ø | MP |
8.6 | 4 | 7.3 | M5*0.8 |
Product parameters
Air permeability | 10mlmin atp=1KPa |
Water blocking pressure | -120mbar(>) |
Applicable temperature | -50℃~150℃ |
Protection level | IP68 or IP67 |
Application Scope of Waterproof Breathable Valves
1.Automotive Industry
2.Consumer Electronics
3.Medical Equipment
4.New Energy Field
5.Industrial Equipment
6.Outdoor Lighting
7.Aerospace
8.Ocean Engineering
9.Home Appliances
10.Security Equipment