Friction Loss
This calculator can help you estimate the amount of pressure your pump must create to deliver the desired flow rate at your destination. Also realize that various types of pipe have maximum pressure levels they can handle without rupturing. This calculator also computes the total resistance for a system with up to two different types of pipe.
Desired Flow Rate
Pipe #1
Size
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
10
12
14
16
18
20
inch
Material
Steel Pipe (new)
Polyethelene
PVC
Steel Pipe (10 years old)
600 max psi
Friction Loss Head Feet
0
10
20
30
40
50
60
70
80
90
100
Friction Loss: 0 feet, 0 psi Velocity: 0 F/S, 0 M/S
Pipe #2
Size
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
10
12
14
16
18
20
inch
Material
Steel Pipe (new)
Polyethelene
PVC
Steel Pipe (10 years old)
600 max psi
Friction Loss Head Feet
0
10
20
30
40
50
60
70
80
90
100
Friction Loss: 0 feet, 0 psi Velocity: 0 F/S, 0 M/S
Combined Results
Friction Loss Head Feet
0
10
20
30
40
50
60
70
80
90
100
Friction Loss: 0 feet, 0 psi Velocity: 0 F/S, 0 M/S
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