Tables Of Resistance Factors And Equivalent Lengths - Immergas Caesar 14 4 ERP Instruction And Recomendation Booklet

1.8 TABLES OF RESISTANCE FACTORS
AND EQUIVALENT LENGTHS.
TYPE OF DUCT
Concentric pipe Ø 60/100 m 1
Concentric bend 90° Ø 60/100
Concentric bend 45° Ø 60/100
Terminal complete with concentric horizontal intake-
exhaust Ø 60/100
Concentric horizontal intake- exhaust
terminal Ø 60/100
Concentric vertical intake-exhaust
terminal Ø 60/100
Pipe Ø 80 m 1 (with and without insulation)
Complete air intake terminal Ø 80 m 1
(with or without insulation)
Intake terminal Ø 80
Exhaust terminal Ø 80
Bend 90° Ø 80
Bend 45° Ø 80
Parallel split Ø 80
from Ø 60/100 to Ø 80/80
Equivalent
length in m of concentric pipe
Resistance
Ø 60/100
Factor
(R)
Intake and
m 1
Exhaust 16.5
Intake and
m 1.3
Exhaust 21
Intake and
m 1
Exhaust 16.5
Intake and
m 2.8
Exhaust 46
Intake and
m 1.9
Exhaust 32
Intake and
m 2.5
Exhaust 41.7
Intake 2.3 m 0.1
Exhaust 3 m 0.2
Intake 5 m 0.3
Intake 3 m 0.2
Exhaust 2.5 m 0.1
Intake 5 m 0.3
Exhaust 6.5 m 0.4
Intake 3 m 0.2
Exhaust 4 m 0.2
Intake and
m 0.5
Exhaust 8.8
9
Equivalent
length of
pipe in m
Ø 80
Intake m 7.1
Exhaust m 5.5
Intake m 9,.1
Exhaust m 7.0
Intake m 7.1
Exhaust m 5.5
Intake m 20
Exhaust m 15
Intake m 14
Exhaust m 10.6
Intake m 18
Exhaust 14
Intake m 1.0
Exhaust m 1.0
Intake m 2.2
Intake m 1.3
Exhaust m 0.8
Intake m 2.2
Exhaust m 2.1
Intake m 1.3
Exhaust m 1.3
Intake m 3.8
Exhaust m 2.9