Performance
Performance
Performance Charts
Charts
Charts
Test
Test
Test Conditions:
Conditions:
Conditions: The pump was tested in water with
the inlet submerged. The air pressure was set at 7
bar (100 psi).
How
How
How to
to
to Use
Use
Use the
the
the Charts
Charts
Charts
1.
Choose a flow rate and outlet pressure that falls
below the Power Limit Curve. Conditions outside
of the curve will decrease the life of the pump.
2.
Set the VFD frequency corresponding to the
desired flow rate. Flow rates will increase with
outlet pressure lower than 0.7 bar (10 psi) and
with high inlet head pressure.
3.
To prevent inlet cavitation erosion, the
Net
Positive Suction Head Available (NPSHa)
of your
system should be above the
Net Positive Suction
Head Required (NPSHr)
line shown on the chart.
High
High
High speed
speed
speed gear
gear
gear ratio
ratio
ratio VA
VA
VA---EH50
EH50
EH50 pumps
pumps
pumps with
with
with option
option
option AC,
AC,
AC, A1,
A1,
A1, A2,
A2,
A2, AX
AX
AX
Pump
Pump
Pump Speed
Speed
Speed Cycles
Cycles
Cycles per
per
per Minute
Minute
Minute
Outlet
Outlet
Outlet
Pressure
Pressure
Pressure
bar,
bar,
bar, MPa
MPa
MPa
(PSI)
(PSI)
(PSI)
0
0
53
(20)
80
(30)
106
(40)
133
(50)
160
(60)
186
(70)
212
(80)
238
(90)
27
(10)
0
1.52
(5)
3.05
(10)
4.57
(15)
6.10
(20)
7.62
(25)
9.14
(30)
10.67
(35)
A
B
0.7, 0.07
(10)
1.4, 0.14
(20)
2.1, 0.21
(30)
2.8, 0.28
(40)
3.4, 0.34
(50)
4.1, 0.41
(60)
4.8, 0.48
(70)
5.5, 0.55
(80)
6.2, 0.62
(90)
6.9, 0.69
(100)
76
(20)
151
(40)
227
(60)
303
(80)
379
(100)
454
(120)
530
(140)
Fluid
Fluid
Fluid Flow
Flow
Flow —
—
— lpm
lpm
lpm (gpm)
(gpm)
(gpm)
NPSHr
NPSHr
NPSHr
Meters
Meters
Meters WC
WC
WC
(feet
(feet
(feet WC)
WC)
WC)
KEY
KEY
KEY
A
A
A
Power Limit Curve
B
B
B
Net Positive Suction Head Required
The shaded area is recommended for continuous duty.
859.0769
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