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PVC/CPVC Equivalent Vent Length Calculati n Sheet
Fi
g / Terminati n Type
1)
90 elbow
2)
45 elbow
3)
IPEX Low Pro le Termina on
4)
IPEX 4" Concentric Termina on
5)
IPEX 3" Concentric Termina on
Royal 3" Concentric Termina on
6)
7)
Royal Low Pro le Termina on
8)
3" Tee Termina on
9)
4" Tee Termina on
10)
3" Snorkel Termina on
11)
4" Snorkel Termina on
12)
Length of Straight Secti n in feet
Note: Ensure SW 1 in DIPSW 1 is in "OFF" positi n if vent length is greater than 21ft (6.4m).
Equivalent Vent Length Calcula on Sheet
Number of
fi ngs
NA
KBP Series Manual
Equivalent Vent
Length
x
5
x
2.5
5
x
x
20
x
20
20
5
x
5
x
5
15
x
x
15
Total (add up
lines 1 through
Total Equivalent
Length
=
=
=
=
=
=
=
=
=
=
37
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