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DUCTLENGTHCKRT
Duct Fitting
Number
ToM @uivalent
Duct Fitting
Equivalent bn@
of Fittings
bn@-Fiting
8
Diameter90° Elbow
r
(1.:2 m)
6 Diameter
45°
Elbow
2.5'
(.76m)
*AFOW
Y to 6 Transition
1.0'
(12.7
cm to 15.24cm)
(.30 m)
Air Flowthisdirectionnot recommended,
m
6" to 3%"X1 O "90° Elbow
/
(15.24cm to 8.26cm x 25.4cm)
(1.~m)
Air Flow
a
3WX1Oto690° Elbow
9'
(8.26cm x 25.4cm to 15.24cm)
(2.75m)
Air Flow
@F':524:rn~fi:::~~~;
"
(.30 m)
a
3X"X1 O"to 6 Transition
4.5'
(8.26cm x 25.4cm to 15.24cm)
(1.37m)
,
Air Flow
Y
to 3WX1 O"90° Elbow
6'
(12.7cm to 8.26cm x 25.4cm)
(1.83m)
Air Flowthisdirectionnot recommended.
@
3WX1 090° Elbow
#
(8.26cm x 25.4cm)
(1.~m)
-
3WX1 O Flat Elbow
12'
(8.26cm x 25.4 cm)
(3.66m)
Q
k
6" Wall Cap
28'
(15.24cm)
(8.53m)
m
3Z"X1 O Wall Cap
20'
(8.26cm x 25.4 cm)
(6.10m)
&
-.Z
10"xlO RoofJack
o'
(25.4cm x 25.4 cm)
(Om)
@
ThermalBreak
2'
(.61m)
6 DiameterStraightDuct–Feet
1'
(Forflex duct multiplyby 2.)
(.30m)
3WX1 W StraightDuct–Feet
1'
(.30m)
System Total
19
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