Hose Pressure Drop Chart
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1
2Hose Pressure Drop*
The chart below shows pressure in PSI for 10 feet of hose (smooth bore) without fittings.
Fluid specification: Specific gravity =.85; Viscosity = v = 20 centistokes (C.S.), (20
C.S.=97 S.S.U.); ref MIL-H5606, +70°F (+21°C).
Flow: US gallons per minute (gpm).
Hose pressure drop in PSI per 10 feet of hose length.
Hose Size
-03
-04
-05
-06
-08
-10
-12
-16
-20
-24
-32
-40
-48
Hose I.D. (in)
3/16
1/4
5/16
3/8
1/2
5/8
3/4
1
1-1/4 1-1/2
2
2-1/2
3
DN
5
6
8
10
12
16
20
25
32
40
50
63
80
.25
10
3.1
.50
19
6
2.7
1
40
12
5.5
2.4
2
95
24
10
4.8
3
185
46
17
7
2.2
4
78
29
12
3
1.2
5
120
44
18
4.5
1.6
0.7
8
95
39
10
3.6
1.4
10
59
15
5.7
2
0.6
12
80
20
7.2
2.6
0.8
15
30
10
4.2
1.2
0.4
18
40
15
6.3
1.5
0.6
20
49
19
8
2
0.7
0.3
25
72
26
11
3
1
0.4
30
34
14
3.6
1.3
0.5
0.1
35
47
19
5
1.7
0.7
0.2
40
25
6.5
2.2
0.9
0.2
50
36
9
3.3
1.3
0.4
0.2
60
50
12
4.4
1.8
0.5
0.2
70
17
6
2.4
0.7
0.3
80
21
7.1
3
0.8
0.3
0.1
90
27
9
3.8
1
0.5
0.1
100
33
12
4.7
1.3
0.6
0.2
150
60
22
8.5
2.2
1
0.3
200
36
15
3.9
1.7
0.6
250
54
22
5.3
2.5
0.8
300
29
7.5
4
1.1
400
51
14
6.5
2.2
500
20
10
3
800
18
5
1000
10
*
Pressure drop values listed are typical of many petroleum based hydraulic oils at approximately +100° F (+38° C).
Differences in fluids, fluid temperature and viscosity can increase or decrease actual pressure drop compared to the
values listed.
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