One-Way Explosion-Proof Valve

The One-Way Explosion-Proof Valve (Model PD05ALM12*1.5-7) is an industrial-grade safety component designed to deliver reliable explosion protection while maintaining unidirectional airflow. Engineered for use in environments where flammable gases and vapors may be present, this valve ensures pressurized system safety by preventing the reverse flow of hazardous substances into sealed enclosures.

Its thread-mount design, high sealing performance, and IP68/6K9K protection rating make it the ideal choice for outdoor electrical control boxes, pharmaceutical equipment, oil & gas systems, and industrial manufacturing machinery.

Key Features & Advantages

One-Way Gas Flow Control

The valve allows internal pressure to safely vent outward while blocking external air, dust, and flammable vapors from entering the system. This unidirectional ventilation design is critical for sealed enclosures operating in hazardous environments.

Explosion-Proof & Flame Retardant

With opening pressure set at 3–7 kPa, the valve activates only when necessary, protecting the enclosure from overpressure while maintaining structural integrity. The body material meets UL94-V0 flame retardant standards, adding another layer of safety in explosive or fire-prone zones.

IP68 / 6K9K Protection

Rated IP68 and 6K9K, this explosion-proof valve provides exceptional resistance to dust, submersion, and high-pressure water spray, ensuring stable operation in harsh outdoor or corrosive industrial settings.

Durable Aluminum Alloy Housing

Crafted from high-strength aluminum alloy, the PD05ALM12*1.5-7 valve is resistant to corrosion, thermal expansion, and mechanical stress, offering a long service life in extreme temperature conditions from -40℃ to 120℃.

Easy Threaded Installation

The valve is designed with M12×1.5 threading and a thread length of 6mm, allowing for quick and secure thread mounting onto a variety of enclosures or system interfaces. With a recommended mounting torque of 8–12 kgf·cm, it ensures leak-free, stable attachment.

This industrial One-Way Explosion-Proof Valve is engineered for a wide range of sealed systems requiring pressure relief, gas ventilation, and explosion containment:

• Outdoor electrical control boxes

• Battery systems and power cabinets

• Chemical and pharmaceutical equipment

• Oil and gas refining or transport systems

• Factory automation enclosures

• Hazardous material containment units

• Renewable energy storage cabinets (BESS)

• Sensor boxes and sealed monitoring enclosures

Why Choose the PD05ALM12*1.5-7?

One-way gas flow ensures explosion-proof protection
IP68/6K9K waterproof and dustproof performance
UL94-V0 flame retardant housing for enhanced safety
Suitable for extreme temperatures and outdoor use
Ideal for hazardous gas environments and sealed pressure systems

FAQ – One-Way Explosion-Proof Valve PD05ALM12*1.5-7

1. What is the function of a one-way explosion-proof valve?

This valve allows internal pressure or gas to escape in one direction while preventing hazardous substances—such as flammable gas, vapor, or moisture—from entering. It’s specifically designed for sealed enclosures operating in explosive or outdoor environments.

2. What protection level does this valve offer?

It is rated IP68/6K9K, meaning it is fully dustproof, waterproof under immersion, and can withstand high-pressure water spray, making it suitable for outdoor and industrial use.

3. What is the operating pressure range?

The valve opens automatically when the internal pressure reaches between 3–7 kPa, ensuring timely venting without risking enclosure integrity.

4. What materials is this valve made from?

The valve body is made of high-quality aluminum alloy, offering excellent thermal stability, mechanical strength, and corrosion resistance.

5. Is the valve flame retardant?

Yes. It meets the UL94-V0 flame retardant standard, which is critical for environments where fire safety is a concern.

6. What are the temperature limits for this valve?

It supports working conditions between -40℃ to 120℃, and sustained operation up to 110℃, making it suitable for extreme temperatures.

7. How is the valve installed?

This model uses an M12×1.5 thread mounting design with a 6mm thread length, and requires 8–12 kgf·cm of torque for proper sealing and installation.

8. Where is this valve typically used?

Common applications include:

• Outdoor electrical control boxes

• Battery and power storage systems

• Oil & gas equipment

• Pharmaceutical processing enclosures

• Factory automation cabinets