Dover Wilden P8 Original Series, Engineering, Operation & Maintenance

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P E R F O R M A N C E
PX8 Metal Performance 19 WILDEN PUMP & ENGINEERING, LLC
The Efficiency Management System (EMS) can be used to optimize the performance of your Wilden pump for specific applications. The pump is delivered with the EMS adjusted to setting 4, which allows maximum flow
.
SET
TING 4 PERFORMANCE CUR
VE
EMS CUR
VE
PX8 MET
AL FULL
-S
TROKE PTFE-FITTED
TECHNIC
AL D
A
TA
Height
..........................
668 mm (26.3”)
Width
...........................
404 mm (15.9”)
Depth
...........................
340 mm (13.4”)
Ship W
eight
........
Stainless Steel 53 kg (117 lb)
Aluminum 35 kg (78 lb)
Cast Iron 49 kg (109 lb)
Alloy C 54 kg (119 lb)
Air Inlet
..........................
19 mm (3/4”)
Inlet
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51 mm (2”)
Outlet
..............................
51 mm (2”)
Suction Lift
....................
6.7 m Dry (22.1’)
9.0 m W
et (29.5’)
Disp. per Stroke
.................
2.6 L (0.68 gal)
1
Max. Flow Rate
.............
703 lpm (185.6 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 Efficiency Management System (EMS) can be used to optimize the performance of your Wilden pump for specific applications. The pump is delivered with the EMS adjusted to setting 4, which allows maximum flow
.
The
EMS
curve
allows
the
pump
user
to deter
-
mine flow 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 per
-
formance curve to calculate the actual flow and air consumption values for that specific EMS setting.
NOTE: Y
ou can
interpolate be
-
tween the setting curves for operation at in
-
termediate EMS settings.
EXAMPLE
A PX8 metal, full-stroke PTFE fitted pump operating at EMS setting 4, achieved a flow rate of 553 lpm (146 gpm) using 156 Nm
3
/h (92
scfm)
of
air
when
run
at
5.5
bar
(80
psig)
air
inlet
pressure
and
0.7
bar (10 psig) discharge pressure (see dot on performance curve). The end user did not require that much flow and wanted to reduce air consumption at his facility
. He determined that EMS setting 2
would meet his needs. At 0.7 bar (10 psig) discharge pressure and EMS
setting
2,
the
flow
X
factor
is
0.63
and
the
air
X
factor
is
0.43
(see dots on EMS curve). Multiplying the original setting 4 values by the X factors provides the setting 2 flow rate of 348 lpm (92 gpm) and an air consumption of 67 Nm
3
/h (40 scfm). The flow rate was reduced by 37% while
the air consumption was reduced by 57%, thus providing increased efficiency
.
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.