Creating healthy, clean air on construction sites.
Waldemar Luft
- 5 min read
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- EFi 75xx – ex-proof ventilator
EFi 75xx – ex-proof ventilator
Axial ventilator explosion-proof
In potentially explosive environments, the transport ventilator Efi 75xx is the right choice. They draw off dangerous gases safely and quickly.
The casing is made of a robust ABS carbon plastic passes voltage into the floor and thus prevents static charges and for this reason dangerous sparking. The casing and motor sealing is in keeping with the high protection class IP65 and offers an effective protection against dust and water. Anti-static hoses ensure safe operation.
ATEX: motor/housing: II 2 G Ex db eb IIB T6 Gb, II 2 G Ex IIB T6 Gb, Zone 1+2
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Key features
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ATEX explosion-proof ventilator
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For harsh working conditions
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PC/ABS antistatic casing, weatherproof, flame retardant and chemical resistant
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High air flow
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Easy transport with comfortable handle
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Possibility to connect a flex tube
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Effective protection against dust and water
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Safely blow or exhaust hazardous gases with minimal risk of the fan causing a spark
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Atex certification: II 2 G Ex db eb IIB T6 Gb, II 2 G Ex IIB T6 Gb, Zone 1+2
Special features in explosion-proof areas
Installation conditions and different hazardous areas have to be observed. Connect device to explosion-proof power socket only. Earth anti-static hoses, when required.
Fans for explosive atmospheres
Fans with ATEX approval may be operated in Zone 1 and 2.
Zone 1 is an area in which a hazardous explosive atmosphere consisting of a mixture of air and flammable gases, vapours or mists is likely to occur in normal operation occasionally. The equipment is approved for substance group IIB. A typical gas for group IIB is ethylene with an ignition energy of 60 - 180 mJ.
Ventilation of shafts
If the existing natural ventilation in shafts and duct systems is not sufficient due to local conditions such as the location of the shafts or their cover properties, additional, technical ventilation measures become necessary. Especially in warm temperatures, when the air in the manhole is cooler than that in the surrounding area, it is often not possible to provide sufficient ventilation. Even temporarily opening manhole covers is not always sufficient for optimal ventilation.
In sewer shafts, for example, foul gases can displace the oxygen in the air and thus lead to unconsciousness among sewer workers. This can be remedied with targeted technical ventilation and powerful fans. The fresh air then reaches the workplace directly and prevents health impairments caused by bad air.
Sufficient technical ventilation is achieved when, for example, an air flow of at least 600m³/h per m² of duct cross-section is achieved in ducts.
Product specifications
Air flow
4,250
m³/h
Air pressure
314
Pa
Fan
Axial
type
Fan speed
1
Power consumption
560
W
Power supply
220-240/1ph/50-60
V/Hz
Sound level
89
dB(A)
Flex rube diametre
305
Ømm
Protection class
IP55
Product size (l x w x h)
406 x 381 x 406
mm
Box size (l x w x h)
450 x 500 x 520
mm
Net/gross weight
20
kg
Pallet
6
pcs
Accessories and consumables
Product code: 1250066
Accessory for EFi 75xx
Product code: 1450290
Accessory for UB 20xx, EFi 75xx
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