CNWINNEX 10ft explosion-proof pressurized offshore cabin is a specialized, compact, and highly engineered workspace designed for safe operation in hazardous (Zone 1 or Zone 2) offshore environments. It is typically certified to DNV 2.7-1/EN 12079 and features a positive pressure system with A60 fire rating to protect personnel and equipment from drilling hazards.
Key Features and Specifications:
● Dimensions: Approx. 10ft x 8ft x 8ft 6in (2991mm x 2438mm x 2591mm).
● Safety Standards: Certified to DNV 2.7-1, DNV 2.7-2 (optional), ATEX, IECEx, and IEC60079-13.
● Hazardous Area Rating: Suitable for Zone 1 or Zone 2.
● Fire Rating: A60 fire protection conforming to SOLAS 2009 (or A0 option).
● Pressurization System: Positive pressure fan system (often with gas detectors and CPFG panels) ensures clean air inside, preventing flammable gases from entering.
● Structure: Heavy-duty Corten steel, equipped with DNV-certified lifting slings for offshore crane transport.
● Internal Layout: Includes air lock, main room, and equipment room.
● Internal Features: HVAC system with Ex-rated air conditioner (IECEx/ATEX certified), Ex-rated lighting, smoke/gas detection, anti-static flooring, fire and gas control panel. Often outfitted as a workshop, laboratory, or office.
● Mud Logging Units: Houses sensitive measurement equipment in hazardous zones.
● Laboratory & Workshop Cabin: For maintenance or testing work on rigs.
● Control Room/Shelter: Used as motor control centers (MCC), variable speed drive (VSD/VFD) cabins, or temporary refuge (TR) shelters.
CNWINNEX explosion-proof systems are widely deployed in oil & gas, petrochemicals, pharmaceuticals, ports & terminals, mining, power generation, offshore platforms, and other areas where flammable gases or dusts are present. Typical applications include control room climate control, hazardous area logistics and access management, video surveillance & security, pressurized analyzer shelters, robotic inspection, as well as custom explosion-proof enclosures and system integration.
An explosion-proof air conditioner is a specialized HVAC unit designed for hazardous environments where flammable gases, vapors, or combustible dusts are present (e.g., petrochemical plants, gas stations, paint booths, pharmaceutical labs).
The most critical difference from a standard air conditioner lies in “active ignition prevention.” Standard units generate tiny sparks during normal operation – such as when relays open/close, compressors start/stop, or circuits make/break. While safe in normal air, these sparks can be deadly in an explosive atmosphere.
CNWINNEX’s explosion-proof design is based on the T4 temperature class. For high-temperature regions such as the Middle East or areas with extreme summer heat, we offer custom units rated for ambient temperatures up to 60°C (140°F) , ensuring reliable operation without overload in harsh tropical climates. For cold regions, we offer custom units rated for ambient temperatures as low as -50°C (-58°F) , guaranteeing safe operation in extreme arctic conditions.
The explosion-proof rating of CNWINNEX air conditioners is:
Ex 2 G D Ex db ib mb IIB T4 Gb / Ex 2 G D Ex db ib mb IIC T4 Gb / Ex ib mb tb IIIC T130°C Db
●For Gas (G): Ex db ib mb IIC T4 Gb
Suitable for IIC gas groups (including hydrogen, acetylene, etc.), using flameproof (db), intrinsic safety (ib), and encapsulated (mb) combined protection. Temperature class T4 (max surface temperature ≤135°C), Equipment Protection Level Gb.
●For Dust (D): Ex ib mb tb IIIC T130°C Db
Suitable for IIIC conductive dusts, using intrinsic safety (ib), encapsulation (mb), and dust-tight (tb) protection. Maximum surface temperature 130°C, Equipment Protection Level Db.
CNWINNEX products comply with international explosion-proof certification standards such as ISO, CNEX, ATEX, IECEx, SAA, EAC, ensuring safe use in different countries and regions., and BV or DNV (for offshore applications) . Depending on the product type and zone classification, we offer various protection concepts including Ex d, Ex e, Ex ib, and Ex nA, with ingress protection up to IP66/IP67, ensuring safe and compliant operation in hazardous environments worldwide.
Absolutely. Explosion-proof Custom Engineering is our sixth core business. From non-standard Ex components (special material junction boxes, intrinsically safe sensors, etc.) to integrated Ex systems (skid-mounted control rooms, pressurized cabins, legacy equipment retrofitting), we provide full-process custom services covering conceptual design, 3D simulation, compliance certification, manufacturing, and delivery. Simply share your operating parameters and functional needs, and we will engineer a dedicated explosion-proof safety solution for you.
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