Explosion-Proof FFU | ATEX/IECEx Certified for Hazardous Zones | Oil & Gas Grade HEPA Filtration & Corrosion Resistance

Explosion-Proof FFU | ATEX/IECEx Certified for Hazardous Zones | Oil & Gas Grade HEPA Filtration & Corrosion Resistance

The Explosion-Proof FFU 1175X1175X380 sets a new safety benchmark for oil refineries, chemical processing plants, and grain silos operating in Class I/II Division 1 hazardous environments. Engineered with 4mm 316L stainless steel housing and ATEX/IECEx-certified brushless EC motors, this FFU delivers 3000 CMH airflow with 99.999% H14 HEPA efficiency while withstanding explosive dust, flammable vapors, and salt spray corrosion. Its pressurized purge system and intrinsically safe circuitry ensure compliance with NFPA 496 and IEC 60079-0/11 standards, providing zero-ignition-risk air control for Zone 0/1/2 and Zone 20/21/22 areas.

Key Features

1. Robust & Fireproof Construction: Galvanized aluminum with UL.1 fireproof certification ensures durability and safety in high-risk environments.

2. Explosion-Proof Motor: BT4-rated motor paired with a 500mm aluminum alloy impeller guarantees stable airflow for hazardous areas.

3. Ultra-High Efficiency H14 Filtration: Non-partitioned HEPA filter (1170×1170×69 mm) achieves 99.999% efficiency at 0.3μm particles, exceeding ISO Class 100 standards.

4. Precision Group Control: Adjustable airflow (0.45–0.75 m/s) with synchronized group operation for large-scale cleanroom systems.

5. Energy-Optimized Performance: Wide power range (250–370W) balances high airflow demand with operational efficiency.

6. Ultra-Low Noise Operation: Maintains 45–58 dB noise levels (tested 1.5m below filter), ideal for noise-sensitive labs.

7. Vibration-Free Design: ≤5μm peak vibration ensures compatibility with precision instrumentation.

Application Scenarios

Pharmaceutical cleanrooms requiring ISO Class 100 (H14) particulate control for sterile manufacturing.

Electronics manufacturing with stringent airflow uniformity and explosion-proof requirements.

Biotechnology facilities demanding group-controlled airflow, ultra-low noise, and fireproof safety.

FAQ :
1,Q: How does the pressurized purge system prevent explosive gas ingress in Zone 0 areas?
A: The system maintains +25Pa constant overpressure inside the FFU using inert gas (N2), blocking external flammable gases. Combined with leakage rate <0.05%, it exceeds IEC 60079-2 requirements for Category 1G/1D equipment.
2,Q: Can this FFU handle corrosive offshore oil rig environments?
A: Absolutely. The 316L stainless steel + PTFE coating passes:
ISO 9227 C5-M corrosion resistance (2000hr salt spray)
NACE MR0175 compliance for H2S-rich oil/gas fields
-40°C to +120°C operational range for Arctic/desert extremes
3,Q: Why is dual ATEX/IECEx certification critical for global projects?
A: Dual certification ensures:
EU compliance (ATEX Directive 2014/34/EU) for European refineries
International acceptance (IECEx) for Middle East/APAC markets
Simplified approvals with unified Ex ia IIC T4/T135°C ratings

Shenzhen Meiri Purification Technology Co. Ltd., known by our brand "MRJH," is a leading manufacturer of cleanroom equipment based in Shenzhen, China. With a spacious facility spanning over 30,000 square meters, we specialize in the research, development, production, sales, and service of professional cleanroom solutions.

At MRJH, we offer a wide range of high-quality products to meet your purification needs. Our product lineup includes Fan Filter Units, Pass Boxes, Air Showers, Cargo Showers, laminar flow hoods, HEPA Box, HEPA Filter , Clean Room Filters , steel doors, and various other clean room equipment. We take pride in our ability to provide OEM/ODM/customized services to tailor our products to your specific requirements.

Since our establishment in 2012, we have been committed to delivering exceptional air filters, air purification equipment, and cleanroom solutions. Our state-of-the-art production facilities are equipped with advanced AMADA CNC punching machines, CNC bending machines, shearing machines, and large laser machines. These cutting-edge technologies enable us to maintain stringent quality control and ensure the precision and reliability of our products.

At MRJH, we prioritize customer satisfaction and strive to provide solutions that meet international standards. Our friendly and professional team is dedicated to delivering outstanding service and support throughout the entire process. We are proud to serve clients globally and look forward to partnering with you to create a cleaner and safer environment.

Please feel free to contact us for any inquiries or further information.