Hitachi 222104 - Manual (Page 15)

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Performance Curves
0
25
50
75
100
125
150
0 1 2 3 4 5
(3.8) (7.6) (11.4) (15.1) (18.9)
FLUID FLOW––gpm (lpm)
Test Fluid: No. 10 weight oil at 75
_
F (23.9
_
C)
To find fluid outlet pressure at a specific fluid flow
and operating air pressure:
1. Locate desired fluid flow along bottom of chart.
2. Follow vertical line up to intersection with
selected fluid outlet pressure curve (black).
3. Follow left to scale to read fluid outlet pressure.
To find pump air consumption at a specific fluid
flow and air pressure:
1. Locate desired flow along bottom of chart.
2. Read vertical line up to intersection with
selected air consumption curve (gray).
2. Follow right to scale to read air consumption.
Air
Consumption
scfm
(m
#
/min)
KEY black curves=fluid outlet pressure
gray curves=air consumption
(0.34, 3.4)
(0.7, 7)
(0.51, 5.1)
(0.85, 8.5)
4
(0.112)
10
(0.280)
(1.0, 10.4)
2
(0.056)
6
8
(0.224)
A 40 psi (0.28 MPa, 2.8 bar) air pressure
B 70 psi (0.48 MPa, 4.8 bar) air pressure
C 100 psi (0.7 MPa, 7 bar) air pressure
D 150 psi (1.0 MPa, 10.4 bar) air pressure
(0.17, 1.7)
B
C
D
(0.168)
A
B
D
C
A
Fluid
Outlet Pressure,
psi
(MPa, bar)