25
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
1. 19 TA B L E S O F R E S I S TA N C E FAC T O R S A N D E Q U I VA L E N T L E N GT H S O F “ G R E E N R A N G E ” F LU E
SYSTEM COMPONENTS
TYPE OF DUCT
Resistance
factor
(R)
Equivalent
length
in m of concentric
pipe Ø 80/125
Concentric pipe 80/125 Ø m 1
2,1 1
90° concentric bend 80/125 Ø
3,0 1,4
Concentric bend 45° Ø 80/125
2,1 1
Terminal complete with concentric horizontal intake-exhaust
Ø 80/125
2,8 1,3
Terminal complete with concentric vertical intake-exhaust
Ø 80/125
3,6 1,7
90° concentric bend Ø 80/125 with inspection
3,4 1,6
S t u b p i p e w i t h i n s p e c t i o n Ø 8 0 / 1 2 5
3,4 1,6