Introduction to Plastic Waterproof Breathable Valve

Plastic waterproof breathable valve is a new type of waterproof breathable component, which combines the waterproof breathable membrane with other materials such as plastic and silicone rubber through embedded injection molding and hot melt welding to form a sealed installation component; Avoiding dust, water or other harmful substances from entering while maintaining pressure balance inside and outside the equipment, it has the advantages of stable performance, simple installation, extended product life cycle, high waterproof and breathable performance.
 

●Characteristics of Waterproof Breathable Valve:

1. Highly sealed and dust-proof; 2. Easy and fast installation; 3. Durable and stable structure; 4. Temperature and corrosion resistance; 5. Waterproof, breathable, balanced pressure4. Temperature resistance and corrosion resistance; 5. Waterproof and breathable balance pressure

●Application areas:

1. New energy vehicles and the automotive industry; 2. Outdoor lighting industry; 3. Outdoor communication industry; 4. Outdoor monitoring industry; 5. Photovoltaic industry; 6. Personal consumer electronics industry; 7. Packaging chemical industry; 8. Other industries

●Waterproof breathable valve waterproof principle:

When the sealing chamber of the plastic waterproof and breathable valve is operating normally, under normal internal pressure conditions, Shangda’s pressure relief product continues to exhaust the sealing chamber, providing waterproof, dustproof, and breathable protection. Similar to the working principle of traditional breathable valves, under normal conditions, an increase in external ambient temperature leads to an increase in internal air pressure inside the sealing chamber, causing air to flow outward. Conversely, when the external ambient temperature decreases, the internal air pressure inside the sealing chamber decreases, and air enters the chamber; At the same time, the pressure relief valve is equipped with e-PTFE membrane components, which are dust-proof, liquid proof, pollution proof, and particle proof.

●Advantages of Plastic Waterproof Breathable Valve :

一、Structural advantages:
1. Reserve a guide position at the starting end of the thread, which can quickly locate and facilitate quick installation, improving efficiency;
2. The ventilation hollow holes are divided into six petal shaped support ribs, and their symmetrical structure plays a role in cavity pressure buffering, drainage protection, preventing fatigue and stretching of the breathable membrane, and extending the service life of the breathable valve.
3. The welding surface of the base has a limiting groove, which can be installed vertically on the side to quickly release air and automatically discharge accumulated dust, rain, dew, condensation, and other foreign objects, thereby reducing the functional hazards of product air permeability degradation and blockage without air permeability.

二、Advantages on the mold:
The entire set of molds is made of imported S136 steel from Sweden, which is one of the top three supporting suppliers in the industry. The mold design, manufacturing and other processes are comprehensively monitored, and the hardware source ensures the consistency and stability of product dimensions;

●The protective function of plastic waterproof breathable valve:

1.Waterproof,breathable,balanced pressure difference

2. Long term high temperature resistance and flame retardancy
3. Preventing condensation/dust/dirt/particles
4. The highest protection level is up to IP68