Siku 1 - Page 8

Non-return flap
Fan
Type D D1 a b
100 PF 99 141 13 104
125 PF 123.5 166 15 110
150 PF 147.5 188 15 125
100 PF
125 PF
150 PF
b
ØD/D**
The fan series
M, S, Silenta S, LD, LD Auto, SIKU 1, SIKU 1L,
SIKU 2L, 100 VKO L, 125 VKO L
can be equipped with a non-return flap. In this case,
the outlet ports will be 14 mm longer.
c
D
L= C + 14