Explosion-Proof Fans
Explosion-proof axial and wall fans, 2,100–18,000 m³/h, 70–1,100 W, 220 / 380 V, for oil & gas, chemical and paint-shop environments. Final selection is confirmed at the duty point (airflow / static pressure / voltage / control mode) and by project verification.
| Model | Size | Max airflowm³/h | Max static pressurePa | PowerW | NoisedB(A) | Speedrpm | VoltageV | ||
|---|---|---|---|---|---|---|---|---|---|
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LWEX-AF-2.5A-0.12-4P-1-001AC | — | — | see curve | 120 | — | — | 220 | Details |
|
LWEX-AF-2.5A-0.12-4P-3-001AC | — | — | see curve | 120 | — | — | 380 | Details |
|
LWEX-AF-3A-0.18-4P-1-001AC | — | — | see curve | 180 | — | — | 220 | Details |
|
LWEX-AF-3A-0.18-4P-3-001AC | — | — | see curve | 180 | — | — | 380 | Details |
|
LWEX-AF-4A-0.37-4P-1-001AC | — | — | see curve | 370 | — | — | 220 | Details |
|
LWEX-AF-4A-0.37-4P-3-001AC | — | — | see curve | 370 | — | — | 380 | Details |
|
LWEX-AF-5A-0.55-4P-1-001AC | — | — | see curve | 550 | — | — | 220 | Details |
|
LWEX-AF-5A-0.55-4P-3-001AC | — | — | see curve | 550 | — | — | 380 | Details |
|
LWEX-AF-6A-0.75-4P-1-001AC | — | 8,700 | see curve | 750 | — | 1,450 | 220 | Details |
|
LWEX-AF-6A-0.75-4P-3-001AC | — | 8,700 | see curve | 750 | — | 1,450 | 380 | Details |
|
LWEX-AF-7.5A-1.1-4P-3-001AC | — | 10,500 | see curve | 1,100 | — | 1,450 | 380 | Details |
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LWEX-AF-7A-1.1-4P-3-001AC | — | 10,200 | see curve | 1,100 | — | 1,450 | 380 | Details |
 |
LWEX-WF-3A-0.12-4P-1-001AC | — | 2,200 | see curve | 120 | — | 1,450 | 220 | Details |
|
LWEX-WF-3A-0.12-4P-3-001AC | — | 2,200 | see curve | 120 | — | 1,450 | 380 | Details |
|
LWEX-WF-4A-0.18-4P-1-001AC | — | 2,400 | see curve | 180 | — | 1,450 | 220 | Details |
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LWEX-WF-4A-0.18-4P-3-001AC | — | 2,400 | see curve | 180 | — | 1,450 | 380 | Details |
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LWEX-WF-5A-0.25-4P-1-001AC | — | 4,900 | see curve | 250 | — | 1,450 | 220 | Details |
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LWEX-WF-5A-0.25-4P-3-001AC | — | 4,900 | see curve | 250 | — | 1,450 | 380 | Details |
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LWEX-WF-6A-0.37-4P-1-001AC | — | 9,500 | see curve | 370 | — | 1,450 | 220 | Details |
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LWEX-WF-6A-0.37-4P-3-001AC | — | 9,500 | see curve | 370 | — | 1,450 | 380 | Details |
 |
LWEX-WFS-5A-0.37-4P-1-001AC | — | 6,600 | see curve | 370 | — | 1,450 | 220 | Details |
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LWEX-WFS-5A-0.37-4P-3-001AC | — | 6,600 | see curve | 370 | — | 1,450 | 380 | Details |
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LWEX-WFS-6A-0.55-4P-1-001AC | — | 9,600 | see curve | 550 | — | 1,450 | 220 | Details |
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LWEX-WFS-6A-0.55-4P-3-001AC | — | 9,600 | see curve | 550 | — | 1,450 | 380 | Details |
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LWEX-WFS-7.5A-0.75-4P-1-001AC | — | 18,000 | see curve | 750 | — | 1,450 | 220 | Details |
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LWEX-WFS-7.5A-0.75-4P-3-001AC | — | 18,000 | see curve | 750 | — | 1,450 | 380 | Details |
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LWSFPEX-4A-0.9-2P-1-001AC | — | 2,100 | see curve | 900 | — | 2,900 | 220 | Details |
| LWWEX-OR-2.5A-0.155-2P-1-001AC | — | — | see curve | 155 | — | — | 220 | Details | |
| LWWEX-OR-2A-0.07-2P-1-001AC | — | — | see curve | 70 | — | — | 220 | Details | |
| LWWEX-OR-3A-0.14-2P-3-001AC | — | — | see curve | 140 | — | — | 380 | Details | |
| LWWEX-OR-3A-0.18-2P-1-001AC | — | — | see curve | 180 | — | — | 220 | Details |
Explosion-Proof Fans — selection guide
Explosion-Proof Fans: 31 models, maximum airflow 2,100–18,000 m³/h, AC motors, across 5 series.
Explosion-proof fans for hazardous areas: LWEX-AF axial fans, LWEX-WF and LWEX-WFS wall fans, LWWEX-OR external-rotor wall fans and the LWSFPEX portable safe-area axial unit, 2,100 to 18,000 m³/h with 70–1,100 W motors on 220 / 380 V. Motors and construction are matched to the zone and gas group of the installation and certified per configuration.
How to select from this range
- Define the hazardous-area zone and gas / dust group first; it fixes the motor protection concept and materials.
- Select the duty point as for any fan, then confirm the Ex rating with our engineers — certificates are issued per configuration.
- Specify spark-resistant construction (AMCA 99 type A / B / C) where the application requires it.
Where these fans are used
- Oil & gas facilities
- Chemical and pharmaceutical plants
- Paint booths and solvent stores
- Battery and hydrogen facilities
Curves in the selector are digitised from each model’s published catalogue curve; wind-tunnel measured curves (AMCA 210 / ISO 5801 methods) are labelled “measured” where available — see the test labs and certificates. Final selection is confirmed at the duty point and by project validation.
FAQ — Explosion-Proof Fans
Which explosion-proof fan types are available?
Axial (LWEX-AF), wall (LWEX-WF / WFS), external-rotor wall (LWWEX-OR) and portable (LWSFPEX) formats, 2,100–18,000 m³/h. The model code LWWEX-OR-3A-0.14-2P gives the size class, motor power in kW and pole count.
Are spark-resistant impellers available?
Yes, non-sparking impeller and housing combinations are offered for applications that require them; state the AMCA 99 construction type with your enquiry.
What is the lead time for explosion-proof fans?
Standard configurations ship in 15–30 days; certified special versions on request.