Mainly used as vintilation purpose for underground cable repairing tunnel service. convenient as it is easy to move around dipending on the subject preference on where the position of the ventilation is going to be.
Type Power Voltage Speed Capacity
PTV 20 / 8" 100 Watt 220 Vac 2800 rpm 435 cmhPTV 25 / 10" 180 Watt 220 Vac 2800 rpm 505 cmh
PTV 30 / 12" 380 Watt 220 Vac 2800 rpm 1800 cmh
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