The Breathable Explosion-Proof Valve is a compact yet highly efficient safety component designed to integrate ventilation, pressure equalization, and explosion protection into a single unit. As a high-performance Explosion-Proof Breather Valve, it enables controlled air and gas exchange while preventing the accumulation of hazardous gases inside sealed enclosures.
This Waterproof Breathable Explosion-Proof Valve is specifically engineered for applications where both environmental sealing and explosion safety are critical, such as battery packs, chemical containers, and industrial equipment housings.

| Model | PB10A4K-70D-8T |
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| Product type | Waterproof, breathable explosion-proof valve | Body material | Aluminum alloy |
| Valve mounting type | Internal flange type | Protection class | IP68/6K9K |
| permeability ML/min@1.5kPa | ≥1000 | Opening pressure kPa | 7~13 |
| permeability ML/min@2.5kPa | ≥2000 | Installation type | 4-hole internal mounting |
| Spool fully open exhaust area (mm²) | 1620 |
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Explosion-Proof Vent Valve with Reliable Safety Performance
Functioning as an Explosion-Proof Vent Valve and Explosion-Proof Pressure Vent, the valve releases excess internal pressure when it exceeds safe limits, effectively reducing the risk of ignition or enclosure failure. Its Explosion Resistant Valve structure ensures that vented gases are discharged in a controlled manner, making it suitable for hazardous and potentially explosive environments.
By maintaining pressure balance, this Explosion Proof Vent protects enclosures from deformation caused by pressure build-up or sudden temperature changes.
Advanced Breathability with ePTFE Membrane Technology
At the heart of the Breathable Explosion-Resistant Valve is a high-performance ePTFE Vent Membrane, also referred to as a PTFE Breathable Membrane. The Microporous PTFE Membrane structure allows gas molecules to pass through freely while blocking water, dust, and contaminants.
This advanced membrane technology provides:
High air permeability for continuous ventilation
Excellent hydrophobic and oleophobic performance
Strong chemical resistance
Long-term stability in harsh industrial conditions
Together, these characteristics ensure efficient ventilation without compromising enclosure protection.
Waterproof and Dustproof Design for Harsh Environments
With an IP68/6K9K protection rating, this Industrial Explosion-Proof Vent Valve delivers outstanding resistance to water immersion, high-pressure water jets, and dust ingress. As a Waterproof Breathable Explosion-Proof Valve, it ensures reliable performance in outdoor installations and demanding industrial environments where moisture, dirt, and aggressive cleaning processes are common.
Precision Pressure Control and High Airflow Capacity
The valve features a precisely calibrated opening pressure range of 7 to 13 kPa, allowing it to act as a dependable Pressure Equalization Explosion-Proof Vent. Once the internal pressure reaches the set threshold, the valve opens rapidly, utilizing its large exhaust area to evacuate gases efficiently.
This controlled venting behavior minimizes stress on enclosure structures while ensuring fast and safe pressure relief.
Durable Aluminum Alloy Construction and Secure Installation
Manufactured with a high-strength aluminum alloy body, the valve offers excellent corrosion resistance, lightweight performance, and mechanical durability. The internal flange design with a 4-hole mounting structure ensures secure and stable installation across a wide range of industrial enclosures and equipment housings.
Typical Applications
The Breathable Explosion-Proof Valve is widely used in industries requiring both ventilation and explosion protection, including:
Lithium battery packs and energy storage systems
Chemical storage and processing equipment
Industrial electrical and control enclosures
Outdoor communication and telecom cabinets
Fuel tank venting systems
Laboratory and pharmaceutical safety enclosures
In all these applications, the valve functions as a reliable Explosion-Proof Vent Valve, enhancing safety and extending equipment service life.
Key Benefits at a Glance
Integrated Safety Function: Combines ventilation, pressure equalization, and explosion protection
High Airflow Performance: Efficient gas exchange using ePTFE membrane technology
Superior Environmental Sealing: Waterproof and dustproof IP68/6K9K protection
Controlled Pressure Release: Precise opening pressure prevents enclosure damage
Robust Construction: Aluminum alloy body for long-term industrial use
Wide Applicability: Suitable for battery, chemical, industrial, and outdoor systems
A Trusted Industrial Explosion-Proof Vent Solution
Whether used as an Explosion-Proof Breather Valve, Explosion-Proof Pressure Vent, or Industrial Explosion-Proof Vent Valve, this product delivers dependable performance in hazardous environments. By combining advanced Microporous PTFE Membrane technology with a rugged explosion-resistant structure, it provides a comprehensive solution for safe ventilation and pressure control.
Frequently Asked Questions (FAQ)
Q1: What is a Breathable Explosion-Proof Valve?
A: It’s a safety device that combines ventilation, pressure equalization, and explosion prevention. It allows air and gas exchange while blocking external contaminants and preventing ignition risks.
Q2: Where is this explosion-proof vent valve commonly used?
A: Widely used in battery packs, chemical containers, industrial control cabinets, telecommunication enclosures, and hazardous gas environments.
Q3: Can this valve withstand outdoor conditions?
A: Yes, with its IP68/6K9K rating, the valve is fully waterproof, dustproof, and resistant to high-pressure water jets, making it ideal for outdoor industrial installations.
Q4: How does the breathability feature help?
A: The breathable function helps equalize internal and external pressure, preventing equipment deformation while keeping out water, dust, and other contaminants.
Q5: What is the opening pressure range for this valve?
A: The valve opens when internal pressure reaches between 7 to 13 kPa, providing timely and reliable venting.
Q6: Can the valve handle both gases and vapors?
A: Yes, it is suitable for venting various gases or vapors, preventing gas build-up that could lead to explosion risks.