Dover Wilden P8 Original Series, Engineering, Operation & Maintenance

Page: 19 / 52

P E R F O R M A N C E
PX8 Metal Performance 17 WILDEN PUMP & ENGINEERING, LLC
SET
TING 4 PERFORMANCE CUR
VE
EMS CUR
VE
0.0 0.1
0.2
0.3 0.4 0.5
0.6 0.7
0.8
0.9
1.0
60
[102]
80
[136]
100
[170]
20
40
60
80
100 120 140
160 180
[76]
[151]
[227] [303] [379]
[454]
[530] [606] [681]
40
[68]
20
[34]
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
.
PX8
MET
AL TPE-FITTED
EXAMPLE
A
PX8
metal,
TPE-fitted
pump
operating
at
EMS
setting
4,
achieved
a flow rate of 197 lpm (52 gpm) using 59 Nm
3
/h (35 scfm) of air
when run at 4.1 bar (60 psig) air inlet pressure and 3.4 bar (50 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 3.4 bar (50 psig) discharge pressure and EMS
setting
2,
the
flow
X
factor
is
0.63
and
the
air
X
factor
is
0.48
(see dots on EMS curve). Multiplying the original setting 4 values the X factors provides the setting
2
flow
rate
of
124
lpm
(33
gpm)
and
an
air
consumption
of
29 Nm
3
/h (17 scfm). The flow rate was reduced by 37% while the
air consumption was reduced by 52%, 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.
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.
TECHNIC
AL D
A
TA
Height
..........................
668 mm (26.3”)
Width
...........................
404 mm (15.9”)
Depth
...........................
340 mm (13.4”)
Ship W
eight
..............
Aluminum 35 kg (78 lb)
316 Stainless Steel 53 kg (117 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’)
8.6 m W
et (28.4’)
Disp. per Stroke
..................
2.7 L (0.72 gal)
1
Max. Flow Rate
................
675 lpm (178 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.