en - Installation and planning notes
Substitute pipe
lengths
176
90° bend
45° bend
90° bend
45° bend
90° concertina bend
45° concertina bend
90° segmented bend
(3 welded seams)
45° segmented bend
(3 welded seams)
90° bend, Westaflex
ducting
45° bend, Westaflex
ducting
According to the number of bends, the substitute pipe lengths must
be deducted from the maximum permissible pipe length.
Type of bend
Substitute pipe
length
PRI 210
PRI 214
PRI 217
r = 2 d
0.25 m
r = 2 d
0.15 m
r = d
0.35 m
r = d
0.25 m
r = 2 d
0.7 m
r = 2 d
0.55 m
r = 2 d
0.45 m
r = 2 d
-
r = d
-
r = 2 d
0.5 m
r = 4 d
0.35 m
r = d
-
r = 2 d
0.4 m
r = 4 d
0.3 m