Explosion-Proof Pressurized Equipment Cabin-Safely Adapting Non-Ex Equipment for Hazardous Areas

In flammable and explosive environments such as petroleum, chemical, military, pharmaceutical, and warehousing industries, many high-performance precision instruments, electrical control devices, and VFD cabinets are not inherently explosion-proof, yet they must operate reliably within hazardous areas. How to resolve this contradiction?

CNWINNEX Explosion-Proof Pressurized Equipment Cabin is specifically designed to "make non-explosion-proof equipment safe for hazardous areas." We provide one-to-one customized pressurized enclosures based on your specific equipment dimensions, interfaces, cooling requirements, and operational needs. By placing your standard equipment inside our enclosure, advanced pressurization technology ensures the entire unit meets the requirements for hazardous area operation—preserving the original equipment's full performance while adding reliable explosion-proof protection.

● One-to-One Custom Design, Perfectly Matched to Your Equipment
We understand that every piece of equipment has unique requirements. The CNWINNEX engineering team provides comprehensive custom design based on your equipment drawings, dimensions, weight, electrical interfaces, cooling needs, and operating habits. Whether it's a small analyzer or a large VFD cabinet, we create a perfectly fitted "safety shell."

● Pressurized Technology, Giving Non-Ex Equipment an Explosion-Proof Identity
Strictly compliant with ATEX and IECEx standards (Ex p/px, py). By continuously introducing protective gas (such as clean air or nitrogen) into the enclosure, a stable positive pressure is maintained, effectively preventing the ingress of an external explosive atmosphere. The system features automatic compensation, purge cycles, real-time pressure monitoring, and alarm interlocks, ensuring equipment inside operates safely under all conditions.

● Operational Convenience Without Compromising Performance
Based on daily operational requirements, we can customize observation windows, panel openings, and button interfaces, allowing personnel to read parameters and operate equipment without opening the enclosure door. Ventilation and cooling requirements are fully considered to ensure explosion-proof protection does not affect original equipment performance.

● Robust Protection, Suitable for Harsh Environments
The enclosure features high-strength steel construction with anti-corrosion coatings and an IP65 rating, capable of withstanding dust, sand, rain, snow, solar radiation, and extreme temperatures. Whether in scorching desert oil fields or humid coastal chemical plants, it provides stable and reliable protection for precision equipment inside.

● Intelligent Monitoring, Unattended Operation
Integrated with an advanced control system, it displays real-time key parameters such as internal pressure and temperature. Supports remote alarm transmission and DCS integration, enabling "unattended, remote monitoring" while significantly reducing manual inspection risks.

Technical Specifications & Application Scope

● Hazardous Area Classification: Suitable for Zone 1 and Zone 2 with IIA, IIB, IIC explosive gas atmospheres; and Zone 21 and Zone 22 with combustible dust atmospheres

● Temperature Class: T1 to T4

● Enclosure Rating: IP65 for both indoor and outdoor installation

● Target Industries: Petroleum, chemical, military, pharmaceutical, warehousing, and other flammable/explosive environments

● Applicable Equipment Types: Analytical instruments, online monitoring devices, VFD cabinets, control cabinets, distribution boxes, PLC cabinets, industrial computers, and other non-explosion-proof electrical equipment

Typical Applications

● Online Analyzer Shelters: Placing non-Ex gas analyzers and chromatographs in hazardous areas.

● VFD/Soft Starter Protection: Safely operating high-power variable frequency equipment in explosive environments.

● Temporary Work Sites: Rapid deployment of standard power distribution equipment into hazardous zones.

● Equipment Retrofit/Upgrade: Adding explosion-proof functionality to existing standard equipment.