Page 323 - GoodyearEPIndustrialHose

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
321
OPEN-END DISCHARGE
GENERAL INFORMATION
The term “open-end discharge” refers to a hose which empties a fluid into the atmosphere. Even though one end is open, the pressure
is not low throughout the hose.
The inlet end pressure is equal to that in the line to which the hose is connected unless the flow rate is so low that the hose is not
completely filled. The pressure along the hose length drops from a maximum at the inlet to zero at the outlet and the pressure at any
given point along the length is nearly proportional to the distance from the hose inlet.
The following table shows the flow in gallons per minute for various sizes of hoses in open-end discharge service.
25 50 75 100 125 150 200 300
30 10.4 6.2 5.6 4.8 4.3 3.8 3.3 2.6
40 12.1 8.5 6.2 5.6 5.0 4.5 3.8 3.2
50 13.8 9.4 7.5 6.4 5.6 5.1 4.0 3.5
60 15.2 10.4 8.5 7.1 6.2 5.6 4.9 3.8
1⁄2˝ 70 16.6 11.2 9.0 7.8 6.8 6.2 5.3 4.2
hose 80 18.0 12.1 9.8 8.5 7.3 6.6 5.6 4.5
90 19.0 13.0 10.4 8.8 7.7 7.1 6.0 4.8
100 20.1 13.8 11.0 9.4 8.5 7.5 6.4 4.9
125 22.8 15.5 12.5 10.5 9.4 8.5 7.2 5.8
30 18.1 12.5 10.3 8.7 7.7 7.0 6.0 4.9
40 21.4 14.8 12.5 10.3 9.0 8.3 7.0 5.7
50 23.9 16.5 13.2 11.4 10.3 9.2 7.9 6.3
60 26.5 18.1 14.8 12.5 11.2 10.3 8.7 7.0
5⁄8˝ 70 27.5 20.0 16.0 13.7 12.0 11.0 10.0 7.6
hose 80 30.6 21.4 16.8 14.8 13.0 11.8 10.3 8.3
90 32.5 22.5 18.1 15.5 14.0 12.5 10.5 8.7
100 34.5 23.9 19.0 16.6 14.8 13.2 11.4 9.2
125 39.0 27.0 21.5 18.5 16.6 15.0 12.9 10.5
30 31.0 21.3 17.2 14.8 13.0 11.8 10.2 8.2
40 36.0 25.0 20.0 17.2 15.2 13.8 11.8 9.4
50 41.0 28.0 22.5 19.2 17.2 15.5 13.2 10.7
60 45.5 31.0 25.0 21.3 19.0 17.2 14.8 11.8
3⁄4˝ 70 49.5 34.0 27.2 23.5 21.0 18.8 17.1 12.8
hose 80 53.0 36.0 29.1 25.0 22.0 20.0 17.2 13.8
90 56.2 39.0 31.0 27.0 23.8 21.3 18.2 14.8
100 60.0 41.0 33.0 28.0 25.0 22.6 19.2 15.5
125 68.0 46.0 37.5 32.0 23.0 25.8 21.8 17.5
25 50 75 100 125 150 200 300
30 68.0 46.2 37.5 32.0 28.5 25.8 22.0 17.8
40 79.0 54.4 44.0 37.5 33.0 30.0 25.8 20.8
50 89.0 62.0 49.0 42.0 37.5 34.0 29.0 23.3
60 100.0 68.0 54.4 46.2 41.8 37.5 32.0 25.8
1˝ 70 — 74.0 59.0 51.0 45.0 40.8 37.3 28.0
hose 80 — 79.0 63.0 54.4 48.0 43.0 37.5 30.0
90 — 84.0 68.0 58.0 51.8 46.2 40.0 32.0
100 — 89.0 71.0 62.0 54.4 49.0 42.0 34.0
125 — 101.0 80.0 68.0 62.0 55.8 47.8 38.0
50 — 110.0 85.0 72.0 56.0 58.0 50.0 42.0
11⁄4 ˝ 75 — 130.0 110.0 90.0 80.0 73.0 64.0 52.0
hose100 — 150.0 125.0 110.0 92.0 85.0 73.0 58.0
150 — — 150.0 130.0 120.0 110.0 90.0 67.0
50 — 140.0 115.0 96.0 85.0 75.0 65.0 54.0
13⁄8 ˝ 75 — 170.0 140.0 125.0 110.0 96.0 84.0 67.0
hose100 — 205.0 160.0 140.0 125.0 110.0 96.0 75.0
150 — — 205.0 170.0 155.0 140.0 125.0 97.0
50 — 180.0 150.0 130.0 120.0 105.0 90.0 74.0
11⁄2 ˝ 75 — 230.0 180.0 160.0 145.0 130.0 120.0 90.0
hose100 — 260.0 220.0 180.0 170.0 150.0 130.0 105.0
150 — — 260.0 230.0 205.0 180.0 160.0 130.0
50 — 380.0 310.0 270.0 240.0 210.0 180.0 150.0
2˝ 75 — 480.0 380.0 330.0 290.0 270.0 230.0 180.0
hose100 — 550.0 450.0 380.0 350.0 310.0 260.0 215.0
125 — — 550.0 480.0 425.0 380.0 330.0 265.0
Hose Length, feet Pressure
at Inlet,
psi
Pressure
at Inlet,
psi
Hose Length, feet
OPEN-END FLOW (GPM)