28
INSTALLERUSERMAINTENANCE TECHNICIANTECHNICAL DATA
1.13 TABLES OF RESISTANCE FACTORS AND EQUIVALENT LENGTHS OF “GREEN RANGE” FLUE
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
Stub pipe with inspection Ø 80/125
3,4 1,6