12
INSTALLERUSERMAINTENANCE TECHNICIAN
TYPE OF DUCT
Resistance
Factor
(R)
Equivalent length
in m of concentric
pipe Ø 60/100
Equivalent length
in metres of pipe
Ø 80
Equivalent length
in metres of pipe
60 Ø
Equivalent length
in m of concentric
pipe Ø 80/125
Concentric pipe Ø 60/100
m 1
Intake and
Exhaust 6.4
m 1
Intake m 7.3
Exhaust m 1.9 m 3.0
Exhaust m 5.3
Concentric bend 90° Ø
60/100
Intake and
Exhaust 8.2
1.3 m
Intake m 9.4
Exhaust m 2.5 m 3.9
Exhaust m 6.8
Concentric bend 45° Ø
60/100
Intake and
Exhaust 6.4
m 1
Intake m 7.3
Exhaust m 1.9 m 3.0
Exhaust m 5.3
Terminal complete with
concentric horizontal
intake-exhaust Ø 60/100
Intake and
Exhaust 15
m 2.3
Intake m 17.2
Exhaust m 4.5 m 7.1
Exhaust m 12.5
Concentric horizontal
intake- exhaust terminal
Ø 60/100
Intake and
Exhaust 10
m 1.5
Intake m 11.5
Exhaust m 3.0 4.7 m
Exhaust m 8.3
Terminal complete with
concentric vertical in-
take-exhaust Ø 60/100
Intake and
Exhaust 16.3
m 2.5
Intake m 18.7
Exhaust m 4.9 m 7.7
Exhaust m 13.6
Concentric vertical
intake-exhaust terminal Ø
60/100
Intake and
Exhaust 9
1.4 m
Intake m 10.3
Exhaust m 2.7 m 4.3
Exhaust m 7.5
Pipe Ø 80 m 1
Intake 0.87 m 0.1 Intake m 1.0
Exhaust m 0.4
m 0.4
m 0.5
Exhaust 1.2 m 0.2 Exhaust m 1.0
Complete intake terminal
Ø 80 m 1
Intake 3 m 0.5 Intake m 3.4 Exhaust m 0.9 1.4 m
Intake terminal Ø 80
Exhaust terminal Ø 80
Intake 2.2 m 0.35 Intake m 2.5
Exhaust m 0.6
m 1
m 0.9
Exhaust 1.9 m 0.3 Exhaust m 1.6
Bend 90° 80 Ø
Intake 1.9 m 0.3 Intake m 2.2
Exhaust m 0.8
m 0.9
m 1.2
Exhaust 2.6 m 0.4 Exhaust m 2.1
45° 80 Ø Bend
Intake 1.2 m 0.2 Intake m 1.4
Exhaust m 0.5
m 0.5
0.7
Exhaust 1.6 m 0.25 Exhaust m 1.3
Pipe Ø 60 m 1 for ducting Exhaust 3.3 m 0.5
Intake 3.8
Exhaust m 1.0 m 1.5
Exhaust 2.7
Bend 90° Ø 60 for ducting
Exhaust 3.5 m 0.55
Intake 4.0
Exhaust m 1.1 1.6 m
Exhaust 2.9
Reduction Ø 80/60
Intake and
Exhaust 2.6
m 0.4
Intake m 3.0
Exhaust m 0.8 m 1.2
Exhaust m 2.1
Terminal complete with
exhaust
vertical Ø 60 for ducting
Exhaust 12.2 1.9 m
Intake m 14
Exhaust m 3.7 m 5.8
Exhaust m 10.1