WILDEN PUMP & ENGINEERING, LLC
14
PX8 Plastic
Performance
SET
TING 4 PERFORMANCE CUR
VE
EMS CUR
VE
P E R F O R M A N C E
PX8 PLA
S
TIC RUBBER-FITTED
The Effi
ciency Management System (EMS) can be used to optimize the performance of your Wilden pump for
specifi
c applications. The pump is delivered with the EMS adjusted to setting 4, which allows maximum fl
ow
.
EXAMPLE
A PX8 polypropylene, rubber
-fi
tted pump operating at EMS setting
4, achieved a fl
ow rate of 231 lpm (61 gpm) using 75 Nm
3
/h (44 scfm)
of air when run at 4.1 bar (60 psig) air inlet pressure and 2.8 bar (40
psig) discharge pressure (See dot on performance curve).
The end user did not require that much fl
ow and wanted to reduce
air consumption at his facility
. He determined that EMS setting 2
would meet his needs. At 2.8 bar (40 psig) discharge pressure and
EMS setting 2, the fl
ow “X factor” is 0.69 and the air “X factor” is
0.53 (see dots on EMS curve).
Multiplying the original setting 4 values by the “X factors” provides
the setting 2 fl
ow rate of 159 lpm (42 gpm) and an air consumption
of 40 Nm
3
/h (23 scfm). The fl
ow rate was reduced by 31% while
the air consumption was reduced by 47%, thus providing increased
effi
ciency
.
For a detailed example for how to set your EMS, see beginning of
performance curve section.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure.
TECHNIC
AL D
A
T
A
Height
. . . . . . . . . . . . . . . . . . . . . . . . . .
770 mm (30.3”)
Width
. . . . . . . . . . . . . . . . . . . . . . . . . . .
490 mm (19.3”)
Depth
. . . . . . . . . . . . . . . . . . . . . . . . . . .
356 mm (14.0”)
Ship W
eight
. . . . . . . .
Polypropylene 34 kg (75 lbs.)
Air Inlet
. . . . . . . . . . . . . . . . . . . . . . . . . .
19 mm (3/4”)
Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51 mm (2”)
Outlet
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51 mm (2”)
Suction Lift
. . . . . . . . . . . . . . . . . . . . .
6.9 m Dry (22.7’)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3 m W
et (30.6’)
Disp. Per Stroke
. . . . . . . . . . . . . . . . .
2.9 l (0.77 gal.)1
Max. Flow Rate
. . . . . . . . . . . . . . .
594 lpm (157 gpm)
Max. Size Solids
. . . . . . . . . . . . . . . . . .
6.4 mm (1/4”)
1
Displacement per stroke was calculated at 4.8 bar (70 psig)
air inlet pressure against a 2.1 bar (30 psig)head pressure.
The Effi
ciency Management System (EMS)
can be used to optimize the performance of
your Wilden pump for specifi
c
applications.
The pump is delivered with the EMS adjusted
to setting 4, which allows maximum fl
ow
.
The EMS curve allows the pump user to
determine fl
ow and air consumption at
each EMS setting. For any EMS setting and
discharge pressure, the “X factor” is used
as a multiplier with the original values from
the setting 4 performance curve to calculate
the actual fl
ow and air consumption values
for that specifi
c EMS setting. Note: you can
interpolate between the setting curves for
operation at intermediate EMS settings.
