Idiomas disponibles
Idiomas disponibles
Pump performance
Ability of pump to deliver material is based
on pressure (psi/bar) and quantity (cfm/lpm)
of air supplied to motor and amount of
material discharge backpressure to be
overcome within system.
Pump performance (→ Fig. 2) contains
curves based on three different air
pressures. Curves relate delivery in ounces
(grams) per minute (X axis) to air
consumption in cubic feet (liters) per minute
(right Y axis) and to material discharge
pressure in psi (bar) (left Y axis).
Pump performance
Delivery versus discharge pressure and air consumption
bar
6 000
400
5 000
300
4 000
3 000
200
2 000
100
1 000
Legend:
Δ
Air pressure
– – –
Air consumption
–––––
Material discharge pressure
Gear oil (140) at 75 °F (25 °C)
psi
200 psi (13.4 bar) ∆
200 psi (6.9 bar) ∆
150 psi (10.3 bar) ∆
150 psi (3.4 bar) ∆
100 psi (6.9 bar) ∆
100 psi (6.9 bar) ∆
50 psi (3.4 bar) ∆
50 psi (3.4 bar) ∆
0
0.2
1
200 psi (6.9 bar) ∆
200 psi (13.4 bar) ∆
150 psi (10.3 bar) ∆
150 psi (3.4 bar) ∆
100 psi (6.9 bar) ∆
100 psi (6.9 bar) ∆
50 psi (3.4 bar) ∆
50 psi (3.4 bar) ∆
0.4
0.6
2
Delivery
7
Fig. 2
cfm
lpm
60
1 500
50
40
1 000
30
20
500
10
0.8
Ounces per minute
3
Grams per minute
