Table of Contents
Advertisement
Example of Finding Pump Air Consumption and Air Pressure at a Specific Fluid Delivery and Discharge Head:
To supply 60 gpm (227 liters) fluid flow (horizontal scale) at 40 psi (0.28 MPa, 2.8 bar) discharge head pressure (vertical scale) re-
quires approximately 60 scfm (1.68 m
feet
psi
(meters)
(MPa, bar)
280
(85.3)
240
(73.2)
200
(61.0)
(0.56, 5.6)
160
(48.8)
(0.42, 4.2)
120
(36.6)
(0.28, 2.8)
80
(24.4)
40
(0.14, 1.4)
(12.2)
0
TEST CONDITIONS
Pump tested in water with PTFE diaphragm and inlet
submerged.
Performance Chart
#
/min) air consumption at 70 psi (0.48 MPa, 4.8 bar) inlet air pressure.
120
A
(0.8, 8)
E
100
B
(0.7, 7)
F
80
C
60
40
D
20
0
0
30
(114)
INLET AIR PRESSURES
A
120 psi air (0.8 MPa, 8 bar)
B
100 psi air (0.7 MPa, 7 bar)
C
70 psi air (0.48 MPa, 4.8 bar)
D
40 psi air (0.28 MPa, 2.8 bar)
G
H
60
90
(227)
(341)
FLUID FLOW GPM (lpm)
KEY
AIR CONSUMPTION
E
25 scfm (0.70 m#/min)
F
50 scfm (1.40 m#/min)
G 75 scfm (2.10 m#/min)
H
100 scfm (2.80 m#/min)
120
150
(454)
(568)
FLUID PRESSURE AND FLOW
SCFM AIR CONSUMPTION
308550
35
Advertisement
Table of Contents
