7±1
ø
139
±
1
ø
128
±
0.5
4-
ø
4.5
±
0.5
ø100±0.5
(R6)
(1)
90
°±
1
°
（等配）
（
Each
）
ø150 mm type
Model no. Surface treatment Mass (g)
109-1081 Electro nickel plating (silver) 70
109-1081H Cation electropainting (black)
Fan
Hexagonal nuts
Inlet nozzle
Finger guard
Screw
s
Spring washers
Plain washers
Mounting example
Centrifugal fan
DC
Inlet nozzle for centrifugal fan and splash proof centrifugal fan
Dimensions (unit: mm)
Nozzle mounted in fan inlet side to adjust the flow of introduced air. Material: Steel sheet
