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To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid flow
(lpm/gpm) and operating hydraulic pressure (psi/MPa/bar):
1. Locate desired flow along bottom of chart.
2. Follow vertical line up to intersection with selected fluid outlet
pressure curve (black). Follow left to scale to read fluid outlet
pressure.
Fluid Outlet Pressure
psi
cycles per minute
MPa, bar
18
5000
34, 345
A
4000
28, 280
B
3000
21, 210
2000
C
14, 140
1000
7, 70
0
0
1
gpm
liters/minute
3.8
32
308354
Technical Data
(Model 237290 and 248817 Viscount II Pump)
Performance Charts
A
9.9 MPa, 99 bar (1428 psi) hydraulic oil pressure
B
7 MPa, 70 bar (1000 psi) hydraulic pressure
C
4 MPa, 40 bar (571 psi) hydraulic pressure
Test Fluid: No. 10 Weight Oil
36
54
72
2
3
4
7.6
11.4
15.2
To find Pump Hydraulic Oil Consumption (gpm or lpm) at a specific
fluid flow (lpm/gpm):
1. Locate desired flow along bottom of chart.
2. Read vertical line up to intersection with selected hydraulic con-
sumption curve (dashes). Follow left to scale to read oil consump-
tion.
Hydraulic Oil Consumption
gpm
lpm
cycles per minute
(hyd. oil)
18
10
38.0
8
30.4
6
22.8
4
15.2
2
7.6
0
0
1
gpm
liters/minute
3.8
36
54
72
hydraulic oil
consumption
2
3
4
7.6
11.4
15.2
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