Shenzhen Meiri Purification Technology Co., Ltd.
| Delivery Time | 7-15 days |
| custom made | support |
| official website | www.ffu-cleanroom.com |
| Brand Name | MRJH |
| Model Number | Explosion-proof FFU 1175X1175X380 |
| Certification | ISO,CE,UL,RoHS |
| Place of Origin | Guangdong, China |
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Product Specification
| Delivery Time | 7-15 days | custom made | support |
| official website | www.ffu-cleanroom.com | Brand Name | MRJH |
| Model Number | Explosion-proof FFU 1175X1175X380 | Certification | ISO,CE,UL,RoHS |
| Place of Origin | Guangdong, China |
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.
| Parameter Name | Value |
| Material | High-quality galvanized aluminum (UL.1 fireproof grade) |
| Fan System | BT4 explosion-proof motor + 500mm aluminum alloy impeller |
| Filtration | Aluminum frame non-partition HEPA filter (1170×1170×69 mm), Efficiency: 99.999% @0.3μm (H14), Initial resistance: ≤110Pa ±10% |
| Air Speed | 0.45–0.75 m/s ±5% (group control) |
| Noise Level | 45–58 dB ±5dB (static test 1.5m below filter) |
| Power Supply | 220V, 50Hz |
| size | 1175×1175×380 mm |
| Air Volume | 2000 CMH |
| Certifications | ISO 14644-1,ISO 9001,CE |
| Parameter/Feature | Our Product | Market Average | Advantages |
|---|---|---|---|
| H13 Filter Pleat Count | 315 pleats | 260 pleats | Larger filtration area, improving filtration efficiency and dust holding capacity. |
| HEPA Filter | - | - | Increased thickness of filtration media enhances filtration effectiveness and lifespan. |
| Pleat Height | 50 mm | 38 mm | Thicker filtration media improves filtration performance and longevity. |
| Protective Mesh Brand | High-quality 9N brand | Generic brands | Superior support and protection, ensuring structural stability. |
| Frame Thickness | 1.0 mm | 0.7 mm | Stronger frame for enhanced durability and reduced deformation risks. |
| Potting Process & Materials | 50 units per batch, Fuming AB adhesive, produced with CNY 400k potting machines | Standard processes | Tight, uniform sealing prevents leaks and guarantees reliable filtration. |
| Average Airflow Velocity | 0.8 m/s | 0.65 m/s | Higher airflow capacity with lower resistance, boosting system efficiency. |
| Motor | Waterproof | Non-waterproof | Enhanced safety and reliability in diverse environments. |
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
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2012
Total Annual:
1500000-2000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
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 profession... 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 profession...
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