* NOTE: 1/2
"
data applies to
PE pipe only.
PVC
has smaller
ID of .612
"
Water Pipe Sizing Chart
Friction Loss in Plastic Pipe with Standard Inside Diameter (SIDR)
THIS CHART APPLIES ONLY TO: PVC pipe, Schedule 40 (160 PSI) and to
PE (polyethylene) pipe with SIDR designation (most common 100 PSI black pipe)
HEAD LOSS in VERTICAL FEET per HUNDRED FEET of pipe
or VERTICAL METERS per HUNDRED METERS of pipe
Nominal Pipe Diameter (Inches)
F L O W
RATE
1/2
*
3/4
1 1
1/4
1
1/2
2 2
1/2
3
4
5
6
GPM L P M
.662
.82
1.05
1.38
1.61
2.07
2.47
3.07
4.03
5.05
6.06
1
3 . 8
1 . 1 3
0 . 1 4
0 . 0 5
0 . 0 2
.
.
.
.
.
.
.
2
7 . 6
4 . 1 6
0 . 3 5
0 . 1 4
0 . 0 5
0 . 0 2
.
.
.
.
.
.
3
1 1
8 . 5 5
2 . 1 9
0 . 3 2
0 . 0 9
0 . 0 5
.
.
.
.
.
.
4
1 5
1 4 . 8
3 . 7 0
0 . 5 3
0 . 1 6
0 . 0 9
0 . 0 2
.
.
.
.
.
5
1 9
2 2 . 2
5 . 7 8
0 . 8 1
0 . 2 5
0 . 1 2
0 . 0 4
.
.
.
.
.
6
2 3
3 1 . 0
7 . 8 5
1 . 0 0
0 . 3 5
0 . 1 8
0 . 0 7
0 . 0 2
.
.
.
.
7
2 7
.
1 0 . 6
1 . 5 2
0 . 4 6
0 . 2 3
0 . 0 8
0 . 0 3
.
.
.
.
8
3 0
.
1 3 . 4
1 . 9 4
0 . 5 8
0 . 3 0
0 . 0 9
0 . 0 5
.
.
.
.
9
3 4
.
1 6 . 9
2 . 4 3
0 . 7 2
0 . 3 7
0 . 1 2
0 . 0 6
.
.
.
.
1 0
3 8
.
2 0 . 3
2 . 9 3
0 . 8 8
0 . 4 6
0 . 1 6
0 . 0 7
0 . 0 2
.
.
.
1 1
4 2
.
2 4 . 3
3 . 5 1
1 . 0 4
0 . 5 3
0 . 1 8
0 . 0 8
0 . 0 3
.
.
.
1 2
4 6
.
2 8 . 6
4 . 1 1
1 . 2 2
0 . 6 5
0 . 2 1
0 . 0 9
0 . 0 4
.
.
.
1 4
5 3
.
.
5 . 4 7
1 . 6 4
0 . 8 5
0 . 2 8
0 . 1 2
0 . 0 5
.
.
.
1 6
6 1
.
.
7 . 0 2
2 . 1 0
1 . 0 9
0 . 3 7
0 . 1 4
0 . 0 6
.
.
.
1 8
6 8
.
.
8 . 7 3
2 . 6 1
1 . 3 4
0 . 4 6
0 . 1 8
0 . 0 7
.
.
.
2 0
7 6
.
.
1 0 . 6
3 . 1 6
1 . 6 4
0 . 5 5
0 . 2 1
0 . 0 8
0 . 0 2
.
.
2 2
8 3
.
.
1 3 . 3
3 . 7 9
1 . 9 6
0 . 6 7
0 . 2 5
0 . 0 9
0 . 0 3
.
.
2 4
9 1
.
.
1 4 . 9
4 . 4 4
2 . 3 1
0 . 7 9
0 . 3 0
0 . 1 1
0 . 0 4
.
.
2 6
9 9
.
.
.
5 . 1 5
2 . 6 6
0 . 9 0
0 . 3 5
0 . 1 4
0 . 0 5
.
.
2 8
1 0 6
.
.
.
5 . 9 1
3 . 0 5
1 . 0 4
0 . 4 2
0 . 1 6
0 . 0 5
.
.
3 0
1 1 4
.
.
.
6 . 7 2
3 . 4 6
1 . 1 8
0 . 4 6
0 . 1 8
0 . 0 6
.
.
3 5
1 3 3
.
.
8 . 9 4
4 . 6 2
1 . 5 7
0 . 6 2
0 . 2 3
0 . 0 7
.
.
4 0
1 5 2
.
.
1 1 . 0
5 . 9 1
1 . 9 9
0 . 7 9
0 . 3 0
0 . 0 9
0 . 0 2
.
4 5
1 7 1
.
.
1 4 . 2
7 . 3 7
2 . 4 9
0 . 9 7
0 . 3 7
0 . 1 2
0 . 0 4
.
5 0
1 9 0
.
.
1 7 . 3
8 . 9 6
3 . 0 3
1 . 2 0
0 . 4 6
0 . 1 4
0 . 0 5
.
5 5
2 0 8
.
.
.
1 0 . 7
3 . 6 0
1 . 4 3
0 . 5 5
0 . 1 6
0 . 0 6
.
6 0
2 2 7
.
.
.
1 2 . 5
4 . 2 3
1 . 6 6
0 . 6 5
0 . 1 8
0 . 0 7
0 . 0 2
6 5
2 4 6
.
.
1 4 . 5
4 . 9 0
1 . 9 4
0 . 7 4
0 . 2 2
0 . 0 8
0 . 0 3
7 0
2 6 5
.
.
1 6 . 7
5 . 6 4
2 . 2 2
0 . 8 5
0 . 2 5
0 . 0 9
0 . 0 4
7 5
2 8 4
.
1 9 . 0
6 . 4 0
2 . 5 2
0 . 9 7
0 . 2 8
0 . 1 0
0 . 0 5
8 0
3 0 3
.
.
7 . 2 1
2 . 8 4
1 . 0 9
0 . 3 2
0 . 1 2
0 . 0 6
8 5
3 2 2
.
.
8 . 0 6
3 . 1 9
1 . 2 2
0 . 3 7
0 . 1 3
0 . 0 7
9 0
3 4 1
.
.
8 . 9 6
3 . 5 3
1 . 3 6
0 . 3 9
0 . 1 4
0 . 0 8
9 5
3 6 0
.
.
.
9 . 9 1
3 . 9 0
1 . 5 0
0 . 4 4
0 . 1 6
0 . 0 9
1 0 0 3 7 9
.
.
.
.
.
1 0 . 9
4 . 3 0
1 . 6 6
0 . 4 9
0 . 1 8
0 . 1 2
1 5 0 5 6 9
.
.
.
.
.
2 3 . 1
9 . 1 0
3 . 5 1
1 . 0 4
0 . 3 7
0 . 1 6
2 0 0 7 5 8
.
.
.
.
.
.
1 5 . 5
5 . 9 8
1 . 7 6
0 . 6 2
0 . 2 8
NOTE: Shaded values are
at velocities over 5 feet per
second and should be
selected with caution.
actual Inside Diameter (inches)
Dankoff Solar Products, Inc.
Solar Water Pump Manufacturing
Since 1983
2810 Industrial Rd.
Santa Fe, NM 87505 USA
Phone (505) 473-3800
Fax (505) 473-3830
E-mail: [email protected]
