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CNWINNEX BT35-11-3.15 Explosion-Proof Stainless Steel Axial Fan: ATEX-Compliant High-Efficiency, Low-Noise VentilationIn the explosive hazardous areas of petrochemical plants, oil and gas stations, hazardous-material storage facilities, and offshore platforms, ventilation equipment is not merely a process accessory—it is a foundational line of defense for the working environment. Conventional fans often struggle to reconcile material durability with explosion-proof reliability when faced with high salt spray, corrosive gases, and explosive atmospheres. The CNWINNEX BT35-11-3.15 Explosion-Proof Stainless Steel Axial Fan is engineered precisely for the ventilation demands of Zone 1 and Zone 2 high-risk environments. The product addresses corrosion challenges through stainless steel construction, establishes its explosion-proof baseline on ATEX and EN 60079 series standards, and balances 3,076 m³/h airflow with low-noise operation within a compact frame.
CNWINNEX Explosion-Proof Compressor: Full Coverage of 9 Refrigerants and Precise Pressure Control for Uncompromised Safety BoundariesIn hazardous-area explosion-proof refrigeration systems, refrigerant selection is often dictated by a project's regional environmental regulations, thermal control requirements, and system design. As the "heart" of the system, a compressor's ability to be compatible with multiple refrigerants while maintaining absolute safety control under various pressure conditions is a key indicator of engineering maturity in explosion-proof equipment.
CNWINNEX EX-ART2 2-Cylinder Explosion-Proof Compressor: Compact Architecture and Robust Parameters for Precise Cooling in Confined Hazardous SpacesIn offshore platform analyzer rooms, small explosion-proof control cabins, or space-constrained electrical equipment rooms, explosion-proof HVAC equipment faces strict physical size limits and exceptionally high safety compliance requirements. As China’s only independently IECEx-certified explosion-proof compressor company, CNWINNEX’s affiliated company introduces the EX-ART2 series 2-cylinder explosion-proof compressors—engineered specifically for these "space-premium and high-risk" working conditions.
Centered on static positive-pressure protection (pxb) and integrated with an increased-safety junction box and intrinsically safe protection components, the series carries the marking Ex eb ib mb pxb IIC T4 Gb. Through a compact 2-cylinder structure and two size matrices, it provides a solid, compliant refrigeration heart for cooling capacity requirements ranging from 3.39kW to 11.2kW.- CNWINNEX EX-ART4 Explosion-Proof Compressor: A Modular Matrix and Wide-Voltage Range Customized for Global Hazardous-Area Thermal ControlIn hazardous-area thermal control systems, a compressor must not only deliver sufficient cooling capacity but also guarantee absolute explosion-proof reliability. As China’s only independently IECEx-certified explosion-proof compressor company, CNWINNEX’s affiliated company introduces the EX-ART4 series 4-cylinder explosion-proof compressors. Centered on static positive-pressure protection (pxb) and integrated with increased safety (eb), intrinsic safety (ib), and encapsulation (mb), this series provides a rock-solid safety foundation alongside a highly modular model design and broad electrical parameter matrix—delivering a precisely matched, highly robust core for global explosion-proof HVAC systems.
- CNWINNEX Explosion-Proof Compressor: Static Pressurization + Multi-Layer Intrinsic Safety, an IECEx-Certified “Compliant Heart”The safety of an explosion-proof air conditioner is never determined by the enclosure alone. As the core moving component of the refrigeration cycle, the compressor is both the center of energy conversion and one of the potential ignition sources that most requires systematic control in hazardous areas. CNWINNEX’s affiliated company is China’s only explosion-proof compressor company holding an independent IECEx certificate. The compressor uses static positive-pressure protection as its primary structure, combined with an increased-safety junction box, intrinsically safe sensing and protection components, and a certified solenoid valve—forming a clearly layered, independently traceable explosion-proof system. Marking: Ex eb ib mb pxb IIC T4 Gb; ambient temperature range: -25°C ≤ Tamb ≤ +60°C.
- CNWINNEX’s affiliated company is China’s only independently IECEx-certified explosion-proof compressor manufacturer. Certifed to IEC 60079-0/-2/-7/-11/-18, marking Ex eb ib mb pxb IIC T4 Gb, -25°C to +60°C. The compliant core inside CNWINNEX explosion-proof air conditioners.The compliance of an explosion-proof air conditioner begins with its most critical component. CNWINNEX’s affiliated company is China’s only explosion-proof compressor company holding an independent IECEx certificate—a qualification whose significance lies not in the document itself, but in the fact that it places the most critical moving part of an explosion-proof air conditioner within an independent, traceable, and verifiable international compliance framework. In oil and gas, chemical, offshore, and hazardous-material storage applications, the compressor is both the heart of the refrigeration cycle and a potential ignition source. The depth of a compressor’s explosion-proof compliance directly determines the safety margin and certification credibility of the complete unit in Zone 1 and Zone 2 hazardous areas.
CNWINNEX Explosion-Proof Split Wall-Mounted AC Passes IEC 60335-2-40:2022 Test Report and Achieves Australian SAA Certification, Expanding Its Compliance FootprintWe are pleased to announce that the CNWINNEX explosion-proof split wall-mounted air conditioner has successfully passed the TEST REPORT IEC 60335-2-40 after a 10-week operation testing period, and has concurrently obtained Australian SAA certification. With these milestones, CNWINNEX explosion-proof air conditioners now close the loop across three compliance dimensions—hazardous-area explosion protection, electrical safety, and Australian market access—meeting ATEX Directive 2014/34/EU and related compliance standards, and providing customers on global hazardous-area projects with a more definitive compliance foundation.
CNWINNEX BKT-26 Mobile Packaged Explosion-Proof Air Conditioner: 25kW Plug-and-Play Cooling for Temporary and Mobile Hazardous Work ZonesThermal control requirements in hazardous areas are not always fixed. Plant turnarounds, emergency repairs, confined-space operations, temporary hazardous-material storage, and temporary explosion-proof electrical rooms share a common profile: the work location moves, the deployment window is short, and explosion-proof compliance does not relax because the job is "temporary." Conventional fixed explosion-proof air conditioners struggle in these scenarios—long installation cycles, complex piping modifications, and equipment that cannot follow the work face. The CNWINNEX BKT-26 Mobile Packaged Explosion-Proof Air Conditioner is engineered to fill this gap: 25kW cooling capacity in a fully integrated monoblock, heavy-duty swivel casters with brakes, and dual lifting provisions (top lifting eyes and bottom forklift pockets) that let an Ex db ib mb IIC T4 Gb certified unit be moved, positioned, and commissioned as work demands shift.
CNWINNEX BT35-11-3.15 Explosion-Proof Stainless Steel Axial Fan: ATEX-Compliant High-Efficiency, Low-Noise Ventilation
In the explosive hazardous areas of petrochemical plants, oil and gas stations, hazardous-material storage facilities, and offshore platforms, ventilation equipment is not merely a process accessory—it is a foundational line of defense for the working environment. Conventional fans often struggle to reconcile material durability with explosion-proof reliability when faced with high salt spray, corrosive gases, and explosive atmospheres. The CNWINNEX BT35-11-3.15 Explosion-Proof Stainless Steel Axial Fan is engineered precisely for the ventilation demands of Zone 1 and Zone 2 high-risk environments. The product addresses corrosion challenges through stainless steel construction, establishes its explosion-proof baseline on ATEX and EN 60079 series standards, and balances 3,076 m³/h airflow with low-noise operation within a compact frame.
Core Advantages: Engineered for Hazardous-Area Ventilation
ATEX Compliance and Multi-Layer Explosion Protection. The fan is designed and manufactured in strict accordance with ATEX Directive 2014/34/EU, carrying the marking Ex db ib mb IIC T4 Gb. This marking indicates the integration of flameproof (db), intrinsically safe (ib), and encapsulated (mb) protection concepts, qualifying the unit for Zone 1 and Zone 2 explosive gas atmospheres, covering Group IIC gases and temperature class T4. For applications involving highly hazardous media such as hydrogen or acetylene, this rating provides a higher level of safety redundancy.
Stainless Steel Construction and Corrosion Resistance. The fan body and impeller of the BT35-11-3.15 are constructed from stainless steel (304 / 316L options available), effectively resisting corrosive gases and moisture in chemical process areas, offshore platforms, and high-salt-spray coastal environments. Compared with standard carbon steel or aluminum alloy impellers, the stainless steel solution better preserves the aerodynamic profile and structural integrity of the blades over extended operating cycles, reducing dynamic imbalance and airflow degradation caused by corrosion.
Balanced Low Noise and High Airflow. The fan employs an axial airflow design with 6–8 blades, delivering 3,076 m³/h at 2,900 RPM. Through aerodynamically optimized blade angles and a streamlined casing, the unit maintains high airflow output while keeping operating noise at a low level—suitable for control room surroundings, analyzer shelters, and occupied work areas with acoustic requirements.
Wide Voltage Adaptability and Custom Fabrication. Standard configuration includes a 380V three-phase power supply, compatible with 50Hz/60Hz frequencies. The fan supports custom fabrication, allowing adjustment of blade pitch, flange dimensions, and surface treatment to suit project-specific requirements. The operating temperature range covers standard industrial environments not exceeding 40°C, meeting the ventilation needs of most onshore and near-shore hazardous areas.
Technical Specifications Overview
Parameter Specification
Model BT35-11-3.15
Brand CNWINNEX
Voltage 380V (customizable)
Airflow Volume 3,076 m³/h
Power 0.37 kW
Speed 2,900 RPM
Airflow Direction Axial
Number of Blades 6–8
Material Stainless Steel (304 / 316L optional)
Operating Temperature Not exceeding 40°C
Explosion-Proof Marking Ex db ib mb IIC T4 Gb
Applicable Zones Zone 1 / Zone 2
Performance Features Explosion-proof, high airflow, low noise
Application Ventilation and air exchange
Typical Applications
l Petrochemical and Refinery Process Areas. Forced ventilation for plant buildings, pump houses, analyzer shelters, and hazardous-material warehouses. The stainless steel construction withstands acidic gases and humid conditions, while the explosion-proof rating covers Group IIC gas risks.
l Oil & Gas Stations and Offshore Platforms. Ventilation and exhaust for non-habitable hazardous compartments at desert oil and gas stations, near-shore platforms, and FPSOs (fixed installation scenarios), maintaining structural integrity and operational reliability under salt spray exposure.
l Hazardous-Material Storage and Battery Workshops. Daily air exchange and emergency exhaust for lithium battery production and storage areas and chemical warehouses. The Ex db ib mb IIC T4 Gb marking provides explosion protection for short-term release conditions that may occur within Zone 1.
l Power and Special Industries. Ventilation and heat dissipation for explosion-proof electrical equipment rooms, battery rooms, and military explosion-proof laboratories. The low-noise characteristics suit indoor work spaces with acoustic requirements.
Request Explosion-Proof Ventilation Selection Support
Please provide your hazardous area classification (Zone 1/2), gas group and temperature class, required airflow and total pressure, installation interface dimensions, and environmental corrosion conditions. The CNWINNEX engineering team will return an ATEX-compliant BT35-11-based explosion-proof stainless steel axial fan configuration.
Contact Us
Web: www.cnwinnex.com Email: info@cnwinnex.com WhatsApp: +86 193 5436 4613
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