Cargo Tank Fan
medium
2 models total
Explosion-proof cargo tank ventilation fans
2 manufacturers · 2 models
Maico
1
Maico EX Vent Marine
variable
· Conditioned Air / Exhaust Air
· axial fan
Type
axial_fan
Atex
ja
Origin
Germany
Common Failures & Inspection Points
- Motor insulation failure
- Blade damage
- ATEX certification void from modification
Service: German manufacturer. ATEX Zone 1 rated.
Spare Parts: Maico: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
Strengths
- ATEX Zone 1 certification ensures compliance with strict explosive atmosphere requirements.
- German engineering delivers robust construction and reliable long‑term performance.
- Axial flow design offers high air volume with relatively low pressure drop, suitable for large tank spaces.
- Integrated motor housing is explosion‑proof, eliminating the need for separate enclosures.
- Standardized mounting simplifies installation on existing cargo tank vent systems.
Weaknesses
- Motor insulation failures have been reported in field service, requiring careful monitoring.
- Blade damage (e.g., from impact or corrosion) can impair performance and may void ATEX approval if repaired improperly.
- Any modification to the fan or motor housing invalidates the ATEX certification.
- Higher initial purchase price compared with non‑explosion‑proof alternatives.
- Limited to applications where axial flow is appropriate; not ideal for high‑pressure, low‑flow scenarios.
Typical Vessels:
Oil tankerChemical tankerLPG carrier
Certifications:
ATEX Zone 1
Decision Guide: Choose if you need explosion‑proof ventilation for hazardous cargo tanks, value proven German build quality, and require high air flow with low pressure loss. Avoid if the installation will likely involve modifications, if blade damage risk is high, or if a lower‑cost non‑ATEX fan meets your safety regime.
Use Cases: Installed on product, crude oil, chemical, or LPG cargo tanks to provide continuous ventilation during loading/unloading, tank cleaning, and pressure equalisation, preventing vapor accumulation and reducing explosion risk.
Novenco (Systemair)
1
Novenco EX Cargo Fan
variable CFM
· Conditioned Air / Exhaust Air
· ATEX‑certified axial fan
Type
axial_fan
Atex
ja
Application
cargo_tank
Common Failures & Inspection Points
- Motor bearing failure
- Blade corrosion from cargo vapour
- ATEX seal degradation
Service: ATEX/IECEx certified. Annual motor check. Do not modify EX protection.
Spare Parts: Novenco (Systemair): Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
Strengths
- Explosion‑proof (ATEX/IECEx) motor and housing for use in hazardous atmospheres
- Corrosion‑resistant blade material suitable for aggressive cargo vapours
- Sealed bearing design reduces maintenance frequency and limits ingress of gases
- Compact, low‑profile installation fits confined tank spaces
- Straightforward annual motor inspection procedure
Weaknesses
- Higher purchase price than non‑EX axial fans due to explosion protection
- Maximum airflow limited by ATEX enclosure constraints
- Requires specialist installation and commissioning to retain certification
- Bearing wear can still occur if annual checks are missed
- Blade corrosion may accelerate if protective coating is damaged
Typical Vessels:
Oil tankerChemical tankerLPG carrierProduct tanker
Certifications:
ATEXIECEx
Decision Guide: Choose if you need a fan that can safely operate in explosive atmospheres inside cargo tanks, especially for oil, chemical or LPG carriers where ATEX compliance is mandatory. Avoid if the ventilation requirement exceeds the modest airflow capacity of an axial EX‑type fan or when budget constraints preclude the higher cost of explosion‑proof equipment.
Use Cases: Ventilation and pressure equalisation of cargo tanks during loading, unloading and ballast operations; removal of hazardous vapours; inert gas purge support in tankers carrying flammable liquids.