Axial flow fan WL-SIGMA 1000
Axial flow fan WL-SIGMA 1000 is designed for independent/separate ventilation of mining excavations (e.g. in coal mines, cooper mines). Due to its construction, axial flow fan WL-SIGMA 1000 can operate in forcing or exhaust ventilation system.
Axial flow fan WL-SIGMA 1000 can be applied in underground mining methane and non-methane excavations, considered as level “a”, “b” and “c” area exposed to danger of methane explosion, as well as grade “A” and “B” danger of coal dust explosion. Axial flow fan has been classified as Group I, category M2 due to its application in areas exposed to danger of explosion (according to directive 2014/34/UE).
|Nominal volumetric flow (Q) [m3/s]||8 (1st gear), 20 (2nd gear)|
|Nominal total pressure increase (P) [Pa]||860 (1st gear), 2900 (2nd gear)|
|Max. total pressure increase (P) [Pa]||880 (1st gear), 3510 (2nd gear)|
|Capacity range [m3/s]||4 - 13,5 (1st gear)), 11 - 26 (2nd gear)|
|Weight of fan [kg]||~1490|
|Fan internal diameter [mm]||956|
|Workplace temperature [°C]||od -10 do +40|
|Relative humidity at 25°C [%]||do 100|
|Applicable rated voltage change [UN]||0,95 - 1,05|
|Increase of forcing air temperature [°C]||1 - 2|