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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 Rooftop Packaged Explosion-Proof Air Conditioner: 200kW All-in-One Thermal Control That Rethinks Installation for Marine & Offshore Hazardous AreasLarge-capacity climate control in hazardous areas has long carried a structural contradiction. Split explosion-proof systems distribute the compliance burden across indoor units, outdoor units, refrigerant piping, and on-site coordination—each interface a potential gap in the certification chain and a drag on project schedules. Conventional floor-standing or cabinet units, meanwhile, consume premium work area in spaces where every square meter already carries operational and safety value. The CNWINNEX Rooftop Packaged Explosion-Proof Air Conditioner resolves this by moving integration upstream: cooling, heating, humidification, steam heating, and the complete explosion-proof electrical control system are assembled and factory-tested in a single rooftop monoblock. On site, only power, water, and duct connections remain. With 200kW rated cooling and heating capacity and 36,000 m³/h airflow, it delivers centralized, uniform thermal control within an ATEX Zone 1/2 compliance envelope.
CNWINNEX Explosion-Proof Compressor: Full Coverage of 9 Refrigerants and Precise Pressure Control for Uncompromised Safety Boundaries
In 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.
As China's only independently IECEx-certified explosion-proof compressor company, CNWINNEX’s affiliated company delivers an explosion-proof compressor series that not only utilizes static positive-pressure (pxb) and multi-layer intrinsic safety protection in its explosion-proof structure but also demonstrates exceptional professionalism and compatibility in its working pressure control matrix—perfectly adapting to 9 mainstream refrigerants to provide highly flexible and absolutely safe underlying power for hazardous-area thermal control projects worldwide.
Compatible with 9 Mainstream Refrigerants: Comprehensive Coverage from Traditional to Eco-Friendly
In response to strict greenhouse gas emission controls in different regions globally, the pressure control system of CNWINNEX explosion-proof compressors natively supports the following 9 refrigerants. Whether it is traditional HCFCs, mainstream HFCs, or highly regarded natural working fluids, it ensures stable operating boundaries:
Classic and Transitional Refrigerants: R22
Mainstream HFC Refrigerants: R134a, R407C, R404A, R507, R410A
Low-GWP Eco-Friendly Alternatives: R448A, R513A
Natural Working Fluid: R290 (Propane) — It is well known that R290 is highly flammable; precise pressure control by the explosion-proof compressor is the absolute core of system safety.
Pressure Control Matrix: Transparent, Precise, and Standardized Lines of Defense
In an explosion-proof air conditioning system, pressure anomalies are often accompanied by temperature runaway or even equipment failure. CNWINNEX has established strict and consistent Working Pressure and Pressure Protection Control Values for all refrigerants, ensuring the system never breaches safety boundaries under any operating condition:
1. Core Working Pressure Range
During operation, the safe working pressure range of the system is strictly limited between 0.25 MPa (Minimum) and 2.2 MPa (Maximum). This range provides a stable physical environment for the static positive-pressure system.
2. High-Pressure Protection Logic (Preventing Overpressure and Condensation Failure)
l Cut-off Value: When system pressure reaches 2.6 ~ 2.8 MPa, the high-pressure protection device will instantly cut off power to prevent compressor overload or pipe burst.
l Recovery & Closing Value: The system will only resume operation after the pressure drops back to the safe range of 2.0 ~ 2.2 MPa, avoiding frequent start-stops.
3. Low-Pressure Protection Logic (Preventing Leakage and Insufficient Refrigerant Return)
l Cut-off Value: When system pressure falls below 0.19 ~ 0.22 MPa, the low-pressure protection device activates to prevent the compressor from idling and damaging itself in a vacuum or under-charged state.
l Recovery & Closing Value: The system automatically resets and operates after the pressure recovers to 0.22 ~ 0.25 MPa.
4. Hardcore Settings of the Pressure Controllers
The intrinsically safe low-pressure and high-pressure controllers are connected in parallel directly to the compressor pipelines, with their core protection trigger points solidly set as:
l Low-Pressure Controller: 0.19 / 0.25 MPa
l High-Pressure Controller: 2.8 / 2.0 MPa
This ensures the accuracy of pressure sensing and allows the intrinsically safe parameters (Ui: 10.5V, Ii: 11.3mA) to be perfectly managed via safety barriers in the safe area.
Engineering Value: Certainty for Project Stakeholders
l Breaking Through Environmental Barriers: Whether facing EU F-Gas regulations requiring R513A or R448A, or needing the extreme cost-effectiveness of R410A, one explosion-proof compressor can meet refrigerant-switching needs for global projects without the need to re-certify or redesign the pressure system.
l Handling Extreme Conditions: Combined with the wide temperature range design of -25°C ≤ Tamb ≤ +60°C, precise pressure control ensures the compressor operates stably under the escort of protection mechanisms in extreme heat (where high pressure spikes) or severe cold (where low pressure drops).
l Zero Friction in Compliance Reviews: The parameters are fully open, transparent, and compliant with the IEC 60079 series standards, providing highly persuasive technical documentation for owners, EPCs, and third-party auditors.
Applications
Backed by strong refrigerant compatibility and pressure control precision, this series of explosion-proof compressors is widely integrated into CNWINNEX explosion-proof air conditioners (split, packaged, rooftop), suitable for:
l Oil, Gas & Petrochemical: Refinery process units with alternating high and low temperatures, and natural gas processing plants with high leakage risks.
l Offshore & Marine: Explosion-proof control rooms that need to adapt to vessel motion and seawater cooling systems (fixed installation types).
l New Energy & Special Industries: Lithium battery production and storage areas (with extremely high requirements for temperature, humidity, and safety), and military explosion-proof laboratories.
Request Detailed Pressure Control Settings and Customized Solutions — Regardless of the eco-friendly refrigerant your project uses or the harsh hazardous-area pressure conditions it faces, CNWINNEX can provide compliant and reliable core component support. Contact us to obtain the complete technical parameter matrix.
Contact Us
Web: www.cnwinnex.com Email: info@cnwinnex.com WhatsApp: +86 193 5436 4613
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