VERDER VA 50 - Page 34

34 819.4496
Performance Chart
Example of Finding Pump Air Consumption and Air Pressure at a Specific Fluid Delivery and Discharge Head:
To supply 227 liters fluid flow (horizontal scale) at 2.8 bar discharge head pressure (vertical scale) requires approximately
1.68 N m
3
/min air consumption at 4.9 bar inlet air pressure.
114
2.8
1.4
4.2
85.3
73.2
61.0
48.8
36.6
24.4
12.2
0
5.6
7.0
8.4
A
B
C
D
A
B
C
D
E
F
G
H
E
F
G
H
227 341 568454
0
0
FLUID FLOW L/MIN
INLET AIR PRESSURES
8.4 bar air
7 bar
4.9 bar air
2.8 air
AIR CONSUMPTION
0.70 N m
3
/min
1.40 N m
3
/min
2.10 N m
3
/min
2.80 N m
3
/
min
PUMP DISCHARGED HEAD
TEST CONDITIONS
Pump tested in water with PTFE diaphragm and
inlet submerged.
FLUID PRESSURE AND FLOW
N M
3
/MIN AIR CONSUMPTION
KEY