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Unit Friction Loss - Hazen and Williams
Imperial
Metric
Steel Pipe
PE Pipe
Steel Pipe Dimensions
Pipe Nominal Size
Custom
NPS 1/2 (DN 15)
NPS 3/4 (DN 20)
NPS 1 (DN 25)
NPS 1-1/4 (DN 32)
NPS 1-1/2 (DN 40)
NPS 2 (DN 50)
NPS 2-1/2
NPS 3 (DN 80)
NPS 3-1/2
NPS 4 (DN 100)
NPS 6 (DN 150)
NPS 8 (DN 200)
NPS 10 (DN 250)
NPS 12 (DN 300)
NPS 14 (DN 350)
NPS 16 (DN 400)
NPS 18 (DN 450)
NPS 20 (DN 500)
NPS 22 (DN 550)
NPS 24 (DN 600)
NPS 26 (DN 650)
NPS 30 (DN 750)
NPS 36 (DN 900)
NPS 42 (DN 1050)
Select "Custom" for manual pipe OD and wall thickness inputs.
Schedule
STD
40
XS
80
160
XXS
Select "Custom" from "Pipe Nominal Size" above for manual pipe OD and wall thickness inputs.
Outer Diameter,
OD
inch
Wall Thickness,
t
inch
PE Pipe Dimensions
Pipe Dimension Standard
Iron Pipe Size (IPS)
Ductile Iron Pipe Size (DIPS)
Pipe Nominal Size (IPS)
1
Custom
1 1/2
2
3
4
6
8
10
12
14
16
18
20
22
24
28
30
32
36
42
48
54
Dimension Ratio (DR)
7
7.3
9
9.3
11
13.5
17
21
26
32.5
Pipe Nominal Size (DIPS)
3
4
6
8
10
12
14
16
18
20
24
30
Custom
Dimension Ratio (DR)
7
9
11
13.5
17
21
26
32.5
Outer Diameter,
OD
inch
Wall Thickness,
t
inch
Dimension Ratio (DR)
Friction Loss - Hazen and Williams Formula
Flowrate,
Q
gpm
ft³/s
H-W Friction Factor
Pipe Length
ft
Report
Report Options
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Date
Revision
Developer
Approver
Reviewer
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