Application Scenarios
● Hazardous areas with explosive gas mixtures: Zone 1, Zone 2.
● Explosive gas mixtures: Groups IIA, IIB, IIC.
● Hazardous areas with combustible dust: Zone 20, Zone 21, Zone 22.
Product Description
● The Explosion Proof Marine Air Conditioner is specifically developed and manufactured for corrosive and hazardous locations such as oil tankers, chemical carriers, offshore drilling platforms, and shore-side docks.
● It employs multiple anti-corrosion technologies, offering excellent corrosion resistance for reliable operation in high-salinity maritime environments.
● Equipped with internationally renowned brand compressors, it ensures safe and reliable operation, high cooling/heating efficiency, long service life, and environmental friendliness.
● It integrates multiple functions including filtration, ventilation, and cooling.
Product Features
● Explosion-proof marking: Ex d ib mb IIB T4 Gb, Ex d ib mb IIC T4 Gb.
● Manufactured with advanced explosion-proof design and technology, ensuring superior explosion-proof performance, safety, and reliability. Housing material: Stainless steel.
● Indoor unit: Copper tubes with aluminum fins. Outdoor unit: Copper tubes with copper fins.
● Hermetic scroll compressor for smooth and stable operation.
● Available in various types including window type, wall-mounted type, and floor standing type units.
● Intelligent control system for energy-efficient operation.
● Optional features: Power-off memory and automatic restart upon power restoration.
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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