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APPENDIX c
Air &
Multipurpose
General Purpose
Heavy Duty
Push-on
Chemical
Transfer
Cleaning
Equipment
Food
Transfer
Washdown
Marine
Material
Handling
Abrasives
Bulk Transfer
Cement & Concrete
Mining
Petroleum
Aircraft Fueling
Dispensing
Dock
Transfer
Spray
Steam
Vacuum
Veyance
Water
Discharge
Suction &
Discharge
Washdown
Welding
Coupling
Systems
APPENDIX
319
Actual Internal Diameter, Inches
flow data
(continued)
GENERAL INFORMATION
Flow of
water in
cu. feet
per sec.
Flow of
water in
U.S. gal.
per min.
Water Flow Pressure Loss (PSI per 100 feet of hose)
Note: The pressure loss experienced by a liquid flowing through a hose depends on the rate of flow, the viscosity of the liquid, the hose ID,
the smoothness of the tube, and the hose length. This chart shows the relationship between rate of flow, ID, and pressure loss for water
at 68°F with a viscosity of one centipoise. The pressure is directly proportional to the length of the hose, therefore, the data shown can
be easily extended by use of proportions, e.g., the pressure drop for 50 feet of hose length is half that for 100 feet.
1
/
2
5
/
8
3
/
4
1
1
1
/
4
1
1
/
2
2
2
1
/
2
3
0.5
.001
0.4
1.5
.003
3.02
1.01
0.42
2.5
.005
7.75
2.58
1.08
5
.011
27.8
9.27
3.86
0.95
0.32
0.13
10
.022
99.5
33.2
13.8
3.38
1.14
0.47
0.12
15
.033
71.0
29.6
7.25
2.45
1.01
0.25
0.08
20
.044
121.0
50.3
12.4
4.15
1.71
0.42
0.14
25
.055
76.5
18.7
6.34
2.60
0.64
0.22
30
.066
108.0
26.5
8.96
3.68
0.90
0.30
0.13
35
.077
142.0
34.8
11.8
4.83
1.18
0.40
0.17
40
.088
44.7
15.1
6.20
1.52
0.51
0.21
45
.099
55.0
18.6
7.65
1.87
0.63
0.26
50
.110
67.5
22.8
9.35
2.28
0.78
0.32
60
.132
94.3
31.8
13.1
3.19
1.08
0.45
70
.154
126.0
42.5
17.5
4.25
1.44
0.60
80
.176
54.6
22.5
5.48
1.86
0.77
90
.198
67.5
27.8
6.80
2.30
0.95
100
.223
81.5
33.5
8.19
2.78
1.15
125
.278
124.0
50.6
12.4
4.20
1.73
150
.334
72.1
17.6
6.97
2.46
175
.390
94.5
23.1
7.83
3.23
200
.446
122.0
29.6
10.1
4.15
225
.501
36.8
12.5
5.15
250
.557
44.6
15.2
6.28
275
.613
53.3
18.1
7.45
300
.688
62.5
21.2
8.75
325
.724
72.5
24.6
10.2
350
.780
83.2
28.2
11.7
375
.836
94.5
32.1
13.3
400
.891
107.0
36.2
14.9
450
1.00
44.9
18.6
500
1.11
54.5
22.5
600
1.34
76.5
31.6
700
1.56
102.0
42.1
800
1.78
131.0
53.9
900
2.00
66.8
1000
2.23
81.4
1100
2.45
97.0
1200
2.67
114.0
1300
2.90
132.0
1400
3.12
1500
3.34
1600
3.56
1800
4.01
2000
4.45