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Pump performance
Pump's ability to deliver material is based on
pressure, psi (bars), and quantity, ft
(liters/min), of air supplied to motor and
amount of material discharge backpressure
to be overcome within system.
Pump performance contains curves
based on three different air pressures.
Curves relate delivery in gallons (liters) per
minute (X axis) to air consumption in cubic
feet (liters) per minute (right Y axis) and to
material discharge pressure in psi/bars
(left Y axis).
Pump performance
Delivery versus discharge pressure and air consumption
Material discharge pressure
psi
bar
1 750
120
110
1 500
100
90
1 250
80
70
1 000
60
50
40
30
20
10
1)
Air pressure
2)
Material discharge pressure
3)
Air consumption
4)
7 pounds approximates 1 gallon
5)
840 grams approximates 1 liter
3
/min
SAE 10 oil at 75 °F (24 °C)
150 psi (10,3 bar)
150 psi (10,3 bar)
1) 2)
1) 2)
100 psi (6,9 bar)
100 psi (6,9 bar)
1) 2)
1) 2)
750
50 psi (3,4 bar)
50 psi (3,4 bar)
1) 2)
1) 2)
500
250
0
0
2
4
5
10
15
150 psi (10,3 bar)
150 psi (10,3 bar)
100 psi (6,9 bar)
100 psi (6,9 bar)
50 psi (3,4 bar)
50 psi (3,4 bar)
6
8
10
20
25
30
35
40
Delivery
8
Air consumption
cfm
lpm
210
1) 3)
1) 3)
5 500
180
5 000
4 500
150
4 000
1) 3)
1) 3)
3 500
120
3 000
90
2 500
2 000
1) 3)
1) 3)
60
1 500
1 000
30
500
0
12
14
Gallons per minute
45
50
Liters per minute
Fig. 2
4)
5)
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