Page 1
EOM
Engineering
Operation &
Maintenance
PX220/PX230
Metal Pump
Where Innovation Flows
wildenpump.com
Page 2
TABLE OF CONTENTS
SECTION 1 CAUTIONS—READ FIRST! ...................................................1
SECTION 2 WILDEN PUMP DESIGNATION SYSTEM ....................................2
SECTION 3 HOW IT WORKS—PUMP & AIR DISTRIBUTION SYSTEM ..................3
SECTION 4 DIMENSIONAL DRAWINGS ..................................................4
SECTION 5 PERFORMANCE
Operating Principle ........................................................8
How to Use this EMS Curve ................................................9
Performance Curves
PX220/PX230 Metal Rubber-Fitted ........................................12
PX220/PX230 Metal Tpe-Fitted ...........................................13
PX220/PX230 Metal Reduced-Stroke PTFE-Fitted ............................14
PX220/PX230 Metal Full-Stroke PTFE-Fitted ................................15
Suction-Lift Curves .......................................................16
SECTION 6 SUGGESTED INSTALLATION, OPERATION & TROUBLESHOOTING ........17
SECTION 7 DISASSEMBLY / REASSEMBLY .............................................20
Grounding Strap for CSA Pumps ...........................................22
Air Valve Disassembly ....................................................23
Reassembly Hints & Tips ..................................................26
SECTION 8 EXPLODED VIEW & PARTS LISTING
PX220/PX230 Metal .............................................................28
SECTION 9 ELASTOMER OPTIONS ......................................................30
Page 3
Section 1
CAUTIONS—READ FIRST!
CAUTION: Do not apply compressed air to the exhaust port
— pump will not function.
CAUTION: Do not, under any circumstance loosen the set
screw located at the adjuster dial of the Pro-Flo X™ pump.
If the set screw is loose when the pump is pressurized, it
could eject and cause injury to anyone in the area.
CAUTION: Do not over-lubricate air supply — excess
lubrication will reduce pump performance. Pump is prelubed.
Temperature Limits:
Acetal –29°C to 82°C –20°F to 180°F
Buna-N –12°C to 82°C 10°F to 180°F
Geolast
®
–40°C to 82°C –40°F to 180°F
Neoprene –18°C to 93°C 0°F to 200°F
Nordel
®
EPDM –51°C to 138°C –60°F to 280°F
Nylon –18°C to 93°C 0°F to 200°F
PFA –7°C to 107°C 45°F to 225°F
Polypropylene 0°C to 79°C 32°F to 175°F
Polyurethane –12°C to 66°C 10°F to 150°F
PVDF –12°C to 107°C 10°F to 225°F
Saniflex™ –29°C to 104°C –20°F to 220°F
SIPD PTFE
SIPD PTFE
PTFE
with
EPDM-backed 4°C to 137°C 40°F to 280°F
with
Neoprene-backed
1
4°C to 104°C 40°F to 220°F
4°C to 93°C 40°F to 200°F
FKM –40°C to 177°C –40°F to 350°F
Wil-Flex™ –40°C to 107°C –40°F to 225°F
1
4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
NOTE: Not all materials are available for all models. Refer
to Section 2 for material options for your pump.
CAUTION: Canadian Standards Association (CSA)
configured pumps should not be used in temperatures
lower than 0.0°C to 52°C (32°F to 125°F).
CAUTION: When choosing pump materials, be sure to
check the temperature limits for all wetted components.
Example: FKM has a maximum limit of 177°C (350°F) but
polypropylene has a maximum limit of only 79°C (175°F).
CAUTION: Maximum temperature limits are based upon
mechanical stress only. Certain chemicals will significantly
reduce maximum safe operating temperatures. Consult
Chemical Resistance Guide for chemical compatibility and
temperature limits.
WARNING: Prevent static sparking. If static sparking
occurs, fire or explosion could result. Pump, valves and
containers must be grounded to a proper grounding point
when handling flammable fluids and whenever discharge
of static electricity is a hazard.
CAUTION: Canadian Standards Association (CSA)
configured pumps must be electrically grounded using the
grounding conductor provided. Improper grounding can
cause improper and dangerous operation.
CAUTION: For U.L. listed pumps, do not exceed 3.4 bar (50
psig) air supply pressure.
CAUTION: Do not exceed 8.6 bar (125 psig) air supply
pressure.
CAUTION: Canadian Standards Association (CSA)
configured pumps should not exceed 6.9 bar (100 psig)
natural gas supply pressure.
CAUTION: The process fluid and cleaning fluids must be
chemically compatible with all wetted pump components.
Consult the Chemical Resistance Guide.
CAUTION: Do not exceed 82°C (180°F) air inlet temperature
for Pro-Flo X™ models.
CAUTION: Pumps should be thoroughly flushed before
installing into process lines. FDA- and USDA-approved
pumps should be cleaned and/or sanitized before being
used.
CAUTION: Always wear safety glasses when operating
pump. If diaphragm rupture occurs, material being pumped
may be forced out air exhaust.
CAUTION: Before any maintenance or repair is attempted,
the compressed air line to the pump should be
disconnected and all air pressure allowed to bleed from
pump. Disconnect all intake, discharge and air lines. Drain
the pump by turning it upside down and allowing any fluid
to flow into a suitable container.
CAUTION: Blow out air line for 10 to 20 seconds before
attaching to pump to make sure all pipeline debris is
clear. Use an in-line air filter. A 5μ (micron) air filter is
recommended.
NOTE: When installing PTFE diaphragms, it is important to
tighten outer pistons simultaneously (turning in opposite
directions) to ensure tight fit. (See torque specifications in
Section 7.)
NOTE: Cast Iron PTFE-fitted pumps come standard from
the factory with expanded PTFE gaskets installed in the
diaphragm bead of the liquid chamber. PTFE gaskets
cannot be re-used.
NOTE: Before starting disassembly, mark a line from each
liquid chamber to its corresponding air chamber. This line
will assist in proper alignment during reassembly.
CAUTION: Pro-Flo X™ pumps can be used for submersible
applications, when using the Pro-Flo X™ submersible
option.
CAUTION: Tighten all hardware prior to installation.
CAUTION: The gas outlet of CSA configured pumps must
be vented to a safe location in accordance with local codes
or, in the absence of local codes, an industry or nationally
recognized code having jurisdiction over the specified
installation.
CAUTION: For U.L. listed pumps, all pipe connections are
to be made using U.L. classified gasoline-resistant pipe
compound.
CAUTION: For U.L. listed pumps all installations must
conform to NFPA 30, NFPA 30A and all other applicable
codes.
CAUTION: For U.L. listed pumps, air exhaust port is to
be connected to pipe or tubing to be routed outdoors or
other location determined to be equivalent.
CAUTION: For U.L. listed pumps, pump is to be grounded
using the jam-nut located at the top of the long vertical carriage
bolt. The ground connection is marked with a tag having the
grounding symbol.
WIL-1161 0 - E- 02 1 WILDEN PUMP & ENGINEERING, LLC
Page 4
Section 2
WILDEN PUMP DESIGNATION SYSTEM
PX220/PX230 METAL
25 mm (1") Pump
Maximum Flow Rate:
212 lpm (56 gpm)
MATERIAL CODES
MODEL
PX220 = PRO-FLO® THREADED
PX230 = PRO-FLO® FLANGED
XPX220 = PRO-FLO® ATEX
XPX230 = PRO-FLO® ATEX
WETTED PARTS & OUTER PISTON
AA = ALUMINUM / ALUMINUM
SS = STAINLESS STEEL /
STAINLESS STEEL
WW = DUCTILE IRON /
DUCTILE IRON
CENTER SECTION
AA = ALUMINUM
AIR VALVE
A = ALUMINUM
DIAPHRAGMS
BNS = BUNA-N (Red Dot)
EPS = EPDM (Blue Dot)
ESD = BUNA-N
LEGEND
PORTS
PORTS
THREADED PORTS
FLANGED PORTS
XPX220 / XXXXX / XXX/ XX /X XX/ XXXX
MODEL VALVE SEATS
ATEX DIAPHRAGMS
WETTED PARTS & OUTER PISTON
FSL = FULL-STROKE SANITARY
SANIFLEX™ IPD [Hytrel
(Cream)]
FSS = SANIFLEX
[Hytrel® (Cream)]
FWL = FULL-STROKE SANITARY
WIL-FLEX™ [Santoprene®
(Two Black Dots)]
NES = NEOPRENE (Green Dot)
PUS = POLYURETHANE (Clear)
TEU = PTFE w/EPDM
BACK-UP (White)
TNU = PTFE w/NEOPRENE
BACK-UP (White)
TSS = FULL-STROKE PTFE
w/SANIFLEX™ BACK-UP
TSU = PTFE w/SANIFLEX™
BACK-UP (White)
TWS = FULL-STROKE PTFE
TXU = PTFE w/CONDUCTIVE
BUNA-N BACK-UP
w/WIL-FLEX
VTS = FKM (White Dot)
WFS = WIL-FLEXTM [Santoprene
(Three Black Dots)]
WWL
= FULL-STROKE WIL-FLEX™
IPD [Santoprene® (Three
Black Dots)]
XBS = CONDUCTIVE BUNA-N
(Two Red Dots)
AIR VALVE
CENTER SECTION
TM
TM
BACK-UP
VALVE BALLS
®
®
O-RINGS
VALVE BALLS
BN = BUNA-N (Red Dot)
FS = SANIFLEX
[Hytrel® (Cream)]
EP = EPDM (Blue Dot)
NE = NEOPRENE (Green Dot)
PU = POLYURETHANE (Brown)
TF = PTFE (White)
VT = FKM (White Dot)
WF = WIL-FLEXTM [Santoprene
(Three Black Dots)]
VALVE SEATS
A = ALUMINUM
M = MILD STEEL
S = STAINLESS STEEL
VALVE SEAT & MANIFOLD
O-RINGS
BN = BUNA-N
FS = SANIFLEX
[Hytrel® (Cream)]
EP = EPDM
NE = NEOPRENE
PU = POLYURETHANE (Brown)
TF = PTFE (White)
VT = FKM
WF = WIL-FLEXTM (Santoprene®)
SPECIALTY
CODE
(if applicable)
TM
TM
®
SPECIALTY CODES
0014 25 mm (1”) BSPT side-ported inlet and discharge
0320 Single-point exhaust
0492 U.L. Approved, Side-ported (1” inlet and discharge manifolds)
0493 U.L. Approved, Center Ported NPT, Turbo
“drop-in” (1” Inlet facing air inlet, 3/4” discharge facing exhaust)
0494 U.L. Approved, Center Ported NPT, Pro-Flo
“drop-in” (1” inlet facing exhaust, 3/4” discharge facing air inlet)
0677 25 mm (1") NPT center-ported inlet and discharge manifold
0678 25 mm (1") BSPT center-ported inlet and discharge manifold
0687 25 mm (1") NPT center-ported inlet and discharge manifold,
Submersible Center Section
NOTE: T he Wilden UL 7 9 Listed products covered by this manual are PX 200 models followed by AA or SS, followed by A A, followed by A , followed by BNS
or TNU, followed by BN or TF, followed by A or S, followed by BN or T F, followed by 0 492, 04 93 or 0494. W ilden UL Lis ted pumps have been evaluated for use
at a 25° C (7 7° F ) ambient temperature with a maximum inlet pressure of 3.4 bar (5 0 psi ).
NOTE: MOST ELASTOMERIC MATERIALS USE COLORED DOT FOR IDENTIFICATION
0688 25 mm (1") BSPT center-ported inlet and discharge
manifold, Submersible Center Section
0695 19 mm (3/4") NPT center-ported discharge manifold
(Turbo-Flo "Drop-in")
0696 19 mm (3/4") BSPT center-ported discharge manifold
(Turbo-Flo "Drop-in")
0697 19 mm (3/4") NPT center-ported discharge manifold
(Pro-Flo "Drop-in")
0698 19 mm (3/4") BSPT center-ported discharge manifold
(Pro-Flo "Drop-in")
WILDEN PUMP & ENGINEERING, LLC 2 WIL-1161 0 - E- 02
0735 19 mm (3/4") NPT center-ported discharge manifold
(Turbo-Flo "Drop-in"), Submersible Center Section
0736 19 mm (3/4") BSPT center-ported discharge manifold
(Turbo-Flo "Drop-in"), Submersible Center Section
0737 19 mm (3/4") NPT center-ported discharge manifold
(Pro-Flo "Drop-in"), Submersible Center Section
0738 19 mm (3/4") BSPT center-ported discharge manifold
(Pro-Flo "Drop-in"), Submersible Center Section
Page 5
MUFFLER
MAIN SHAFT
PILOT SPOOL
AIR VALVE SPOOL
END CAP
Section 3
HOW IT WORKS—PUMP
The Wilden diaphragm pump is an air-operated, positive displacement, self-priming pump. These drawings show flow pattern
through the pump upon its initial stroke. It is assumed the pump has no fluid in it prior to its initial stroke.
CLOSED
OUTLET
OPEN
B A
INLET
FIGUR E 1 The air valve dire cts pre ssurized
air to the back side of diaphragm A. The
compressed air is applied directly to the
liquid column separated by elastomeric
diaphragms. The diaphragm acts as
a separation membrane between the
compressed air and liquid; a balanced
load removes mechanical stress from the
diaphragm. The compressed air moves
the diaphragm away from the center
of the pump. The opposite diaphragm
is pulled in by the shaft connected to
the pressurized diaphragm. Diaphragm
B is on its suction stroke; air behind
the diaphragm has been forced out to
atmosphere through the exhaust port of
the pump. The movement of diaphragm
B toward the center of the pump creates
a vacuum within chamber B. Atmospheric
pressure forces fluid into the inlet
manifold forcing the inlet valve ball off its
seat. Liquid is free to move past the inlet
valve ball and fill the liquid chamber (see
shaded area).
CLOSEDOPEN
OPEN
OUTLET
CLOSED
B A
CLOSED OPEN
FIGURE 2 When the pressurized diaphragm,
diaphra gm A, re aches t he limit of it s disc harge
stroke, the air valve redirects pressurized
air to the back side of diaphragm B. The
pressurized air forces diaphragm B away
from the center while pulling diaphragm A
to the center. Diaphragm B is now on its
discharge stroke. Diaphragm B forces the
inlet valve ball onto its seat due to the
hydraulic forces developed in the liquid
chamber and manifold of the pump. These
same hydraulic forces lif t the discharge
valve ball off its seat, while the opposite
discharge valve ball is forced onto its seat,
forcing fluid to flow through the pump
discharge. The movement of diaphragm A
toward the center of the pump creates a
vacuum within liquid chamber A. Atmospheric pressure forces fluid into the inlet
manifold of the pump. The inlet valve ball
is forced off its seat allowing the fluid being
pumped to fill the liquid chamber.
INLET
CLOSED OPEN
OUTLET
B A
OPEN
FIGURE 3 At completion of the stroke,
the air valve again redirects air to the
back side of diaphragm A, which starts
diaphragm B on its suction stroke. As
the pump reaches its original starting
point, each diaphragm has gone through
one suction and one discharge stroke.
This constitutes one complete pumping
cycle. The pump may take several cycles
to completely prime depending on the
conditions of the application.
INLET
CLOSED
HOW IT WORKS—AIR DISTRIBUTION SYSTEM
AIR INLET AIR VALVE
MUFFLER PLATE
WIL-1161 0 - E- 02 3 WILDEN PUMP & ENGINEERING, LLC
The Pro-Flo
moving parts : the air valve spool and the pilot spool. The heart of
the system is the air valve spool and air valve. This valve design
incorporates an unbalanced spool. The smaller end of the spool
is pressurized continuously, while the large end is alternately
pressurized then exhausted to move the spool. The spool directs
pressurized air to one air chamber while exhausting the other.
The air causes the main shaft /diaphragm assembly to shif t to
one side — discharging liquid on that side and pulling liquid in
on the other side. When the shaft reaches the end of its stroke,
the inner piston actuates the pilot spool, which pressurizes and
exhausts the large end of the air valve spool. The repositioning
of the air valve spool routes the air to the other air chamber.
®
patented air distribution system incorporates two
Page 6
Section 4
DIMENSIONAL DRAWINGS
PX220 Metal —Threaded
DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 361 14.2
B 36 1.4
C 163 6.4
D 254 10.0
E 287 11.3
F 56 2.2
G 384 15.1
H 71 2.8
J 140 5.5
K 155 6.1
L 206 8.1
M 173 6.8
N 104 4.1
P 127 5.0
R 10 0.4
LW0448 REV. A
PX220 Metal—Center-Ported
DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 422 16.6
B 36 1.4
C 163 6.4
D 254 10.0
E 287 11.3
F 33 1.3
G 384 15.1
H 71 2.8
J 140 5.5
K 155 6.1
L 206 8.1
M 173 6.8
N 104 4.1
P 127 5.0
R 10 0.4
LW0449 REV. A
WILDEN PUMP & ENGINEERING, LLC 4 WIL-1161 0 - E- 02
Page 7
Section 4
DIMENSIONAL DRAWINGS
PX230 Stainless Steel —Flanged
DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 373 14.7
B 69 2.7
C 195 7.6
D 287 11.3
E 340 13.4
F 343 13.5
G 71 2.8
H 384 15.1
J 71 2.8
K 140 5.5
L 188 7.4
M 206 8.1
N 173 6.8
P 104 4.1
R 127 5.0
S 10 0.4
DIN FLANGE
T 85 DIA. 3.3 DIA.
U 115 DIA. 4.5 DIA.
V 14 DIA. 0.6 DIA.
ANSI FLANGE
T 79 DIA. 3.1 DIA.
U 109 DIA. 4.3 DIA.
V 14 DIA. 0.6 DIA.
LW0450 REV. A
WIL-1161 0 - E- 02 5 WILDEN PUMP & ENGINEERING, LLC
Page 8
Section 5B
NOTES
Page 9
PX220/PX230
M E T A L
PX220/PX230 PERFORMANCE
Page 10
Section 5B
Pro-Flo X
The Pro-Flo X™ air distribution system with the
revolutionary Efficiency Management System (EMS)
offers flexibility never before seen in the world of
AODD pumps. The
patent-pending EMS
is simple and easy
to use. With the
turn of an integrated
TM
Operating Principle
control dial, the operator can select the optimal
balance of flow and efficiency that best meets the
application needs. Pro-Flo X™ provides higher
performance, lower
operational costs
and flexibility that
exceeds previous
industry standards.
AIR CONSUMPTION
$
$
$
Turning the dial
changes the
relationship
between air inlet
and exhaust
porting.
WILDEN PUMP & ENGINEERING, LLC 8 PX220/PX230 Performance
Each dial setting
represents an
entirely different
flow curve.
Pro-Flo X™ pumps
are shipped from
the factory on
setting 4, which
is the highest
flow rate setting
possible.
Moving the dial
from setting 4
causes a decrease
in flow and an even
greater decrease in
air consumption.
When the air
consumption
decreases more
than the flow
rate, efficiency
is improved and
operating costs
are reduced.
Page 11
Example 1
HOW TO USE THIS EMS CURVE
SETTING 4 PERFORMANCE CURVE
Figure 1 Figure 2
Example data point = Example data point =
This is an example showing how to determine flow rate and
air consumption for your Pro-Flo X™ pump using the Efficien
cy Management System (EMS) curve and the performance
curve. For this example we will be using 4.1 bar (60 psig) inlet
air pressure and 2.8 bar (40 psig) discharge pressure and EMS
setting 2.
Step 1:
Identifying performance at setting 4. Locate
the curve that represents the flow rate of the
pump with 4.1 bar (60 psig) air inlet pressure.
Mark the point where this curve crosses the
horizontal line representing 2.8 bar (40 psig)
discharge pressure (Figure 1). After locating
your performance point on the flow curve,
draw a vertical line downward until reaching
the bottom scale on the chart. Identify the flow
rate (in this case, 8.2 gpm). Observe location
of performance point relative to air consumption curves and approximate air consumption
value (in this case, 9.8 scfm).
8.2
GPM
-
EMS curve, draw vertical lines downward until
reaching the bottom scale on the chart. This
identifies the flow X Factor (in this case, 0.58)
and air X Factor (in this case, 0.48).
Step 3:
Calculating performance for specific EMS
setting. Multiply the flow rate (8.2 gpm)
obtained in Step 1 by the flow X Factor multiplier (0.58) in Step 2 to determine the flow rate
at EMS setting 2. Multiply the air consumption (9.8 scfm) obtained in Step 1 by the air
X Factor multiplier (0.48) in Step 2 to determine the air consumption at EMS setting 2
(Figure 3).
8.2
gpm
.58
4.8
gpm
0.58
0.48
(flow rate for setting 4)
(Flow X Factor setting 2)
(Flow rate for setting 2)
EMS CURVE
flow multiplier
air multiplier
Step 2:
Determining flow and air X Factors. Locate
your discharge pressure [2.8 bar (40 psig)] on
the vertical axis of the EMS curve (Figure 2).
Follow along the 2.8 bar (40 psig) horizontal
line until intersecting both flow and air curves
for your desired EMS setting (in this case, setting 2). Mark the points where the EMS curves
intersect the horizontal discharge pressure
line. After locating your EMS points on the
PX220/PX230 Performance 9 WILDEN PUMP & ENGINEERING, LLC
9.8
scfm
(air consumption for setting 4)
.48
4.7
Figure 3
The flow rate and air consumption at Setting
2 are found to be 18.2 lpm (4.8 gpm) and 7.9
Nm3/h (4.7 scfm) respectively.
(Air X Factor setting 2)
scfm
(air consumption for setting 2)
Page 12
HOW TO USE THIS EMS CURVE
Example 2.1
SETTING 4 PERFORMANCE CURVE
Figure 4
Example data point =
This is an example showing how to determine the inlet air
pressure and the EMS setting for your Pro-Flo X™ pump to
optimize the pump for a specific application. For this exam
ple we will be using an application requirement of 18.9 lpm
(5 gpm) flow rate against 2.8 bar (40 psig) discharge pressure.
This example will illustrate how to calculate the air consump
tion that could be expected at this operational point.
10.2
gpm
-
-
DETERMINE EMS SETTING
Step 1
: Establish inlet air pressure. Higher air pres-
sures will typically allow the pump to run
more efficiently, however, available plant air
pressure can vary greatly. If an operating
pressure of 6.9 bar (100 psig) is chosen when
EMS Flow
Settings 1 & 2
0.49
In our example it is 38.6 lpm (10.2 gpm). This
is the setting 4 flow rate. Observe the location of the performance point relative to air
consumption curves and approximate air
consumption value. In our example setting
4 air consumption is 24 Nm3/h (14 scfm).
(See figure 4.)
Step 3
: Determine flow X Factor. Divide the required
flow rate 18.9 lpm (5 gpm) by the setting 4 flow
rate 38.6 lpm (10.2 gpm) to determine the flow
X Factor for the application.
5
gpm / 10.2 gpm = 0.49 (flow X Factor)
EMS CURVE
Figure 5
flow multiplier
plant air frequently dips to 6.2 bar (90 psig)
Step 4
pump performance will vary. Choose an operating pressure that is within your compressed
air system's capabilities. For this example we
will choose 4.1 bar (60 psig).
: Determine EMS setting from the flow
X Factor. Plot the point representing the flow
X Factor (0.49) and the application discharge
pressure 2.8 bar (40 psig) on the EMS curve.
This is done by following the horizontal 2.8
Step 2
: Determine performance point at setting 4. For
this example an inlet air pressure of 4.1 bar
(60 psig) inlet air pressure has been chosen.
Locate the curve that represents the performance of the pump with 4.1 bar (60 psig) inlet
air pressure. Mark the point where this curve
crosses the horizontal line representing 2.8
bar (40 psig) discharge pressure. After locating this point on the flow curve, draw a vertical line downward until reaching the bottom
scale on the chart and identify the flow rate.
bar (40 psig) discharge pressure line until it
crosses the vertical 0.49 X Factor line. Typically, this point lies between two flow EMS setting curves (in this case, the point lies between
the flow curves for EMS setting 1 and 2). Observe the location of the point relative to the
two curves it lies between and approximate
the EMS setting (Figure 5). For more precise
results you can mathematically interpolate between the two curves to determine the optimal EMS setting.
For this example the EMS setting is 1.8.
WILDEN PUMP & ENGINEERING, LLC 10 PX220/PX230 Performance
Page 13
HOW TO USE THIS EMS CURVE
Example 2.2
SETTING 4 PERFORMANCE CURVE
Figure 6
Example data point =
10.2
gpm
Determine air consumption at a specific
EMS setting.
Step 1
: Determine air X Factor. In order to determine
the air X Factor, identify the two air EMS setting curves closest to the EMS setting established in example 2.1 (in this case, the point
lies between the air curves for EMS setting
1 and 2). The point representing your EMS
setting (1.8) must be approximated and plotted on the EMS curve along the horizontal
line representing your discharge pressure (in
this case, 40 psig). This air point is different
than the flow point plotted in example 2.1. After estimating (or interpolating) this point on
the curve, draw a vertical line downward until reaching the bottom scale on the chart and
identify the air X Factor (Figure 7).
EMS CURVE
EMS Air
Settings 1 & 2
Figure 7
Example data point =
Step 2
: Determine air consumption. Multiply your
setting 4 air consumption (14 scfm) value by
the air X Factor obtained above (0.40) to determine your actual air consumption.
1
4 scfm x 0.40 = 5.6 SCFM
In summary, for an application requiring 18.9 lpm
(5 gpm) against 2.8 bar (40 psig) discharge pressure,
the pump inlet air pressure should be set to 4.1 bar
(60 psig) and the EMS dial should be set to 1.8. The
pump would then consume 9.5 Nm3/h (5.6 scfm) of
compressed air.
0.40
air multiplier
For this example the air X Factor is 0.40.
PX220/PX230 Performance 11 WILDEN PUMP & ENGINEERING, LLC
Page 14
EMS CURVE
PERFORMANCE
/h (29 scfm)
3
/h (21 scfm). The flow rate was reduced by 14% while the
3
air consumption was reduced by 26%, thus providing increased
EXAMPLE
A PX220/PX230 metal, rubber-fitted pump operating at EMS setting
4 achieved a flow rate of 87 lpm (23 gpm) using 49 Nm
of air when run at 5.5 bar (80 psig) air inlet pressure and 4.1 bar (60
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 3
would meet his needs. At 4.1 bar (60 psig) discharge pressure and
EMS setting 3, the flow X factor is 0.86 and the air X factor is 0.74
(see dots on EMS curve).
Multiplying the original setting 4 values by the X factors provides
efficiency.
the setting 3 flow rate of 75 lpm (20 gpm) and an air consumption of
36 Nm
For a detailed example for how to set your EMS, see beginning of perfor-
mance curve section.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure. Canadian
Standards Association (CSA) configured pumps should not exceed 6.9
bar (100 psig) natural gas supply pressure. Please read all cautions and
suggested installation sections before operating any Wilden product.
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
determine 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 performance curve to calculate the
actual flow and air consumption values for
that specific EMS setting. NOTE: You can
interpolate between the setting curves for
operation at intermediate EMS settings.
SETTING 4 PERFORMANCE CURVE
.................0.30 L (0.08 gal)
1
...............................25 mm (1”)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mm (1”)
PX220/PX230 METAL RUBBER-FITTED
TECHNICAL DATA
Ship Weight .............. Aluminum 15 kg (34 lb)
Ductile Iron 26 kg (57 lb)
Inlet
Outlet
316 Stainless Steel 28 kg (61 lb)
Air Inlet ...........................13 mm (1/2”)
Suction Lift ..................... 5.9 m Dry (19.3’)
9.0 m Wet (29.5’)
Disp. Per Stroke
WILDEN PUMP & ENGINEERING, LLC 12 PX220/PX230 Performance
Displacement per stroke was calculated at 4.8 bar (70 psig)
Max. Flow Rate .................212 lpm (56 gpm)
air inlet pressure against a 2.1 bar (30 psig) head pressure.
Max. Size Solids ...................6.4 mm (1/4”)
1
Page 15
EMS CURVE
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
10 20 30 40 50 60
[38] [76] [114] [151] [189] [227]
Air
Setting 3
PERFORMANCE
/h (29 scfm)
3
Air Flow
Setting 2
Air Flow
Setting 1
Flow
60 [102]
X Factor
Multiplier
/h (2 scfm). The flow rate was reduced by 82% while the
3
air consumption was reduced by 93%, thus providing increased
EXAMPLE
A PX220/PX230 metal, TPE-fitted pump operating at EMS setting 4
achieved a flow rate of 142 lpm (38 gpm) using 49 Nm
of air when run at 4.1 bar (60 psig) air inlet pressure and 1.4 bar (20
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 1
would meet his needs. At 1.4 bar (20 psig) discharge pressure and
EMS setting 1, the flow X factor is 0.18 and the air X factor is 0.07
(see dots on EMS curve).
Multiplying the original setting 4 values by the X factors provides
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
determine 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 performance curve to calculate the
efficiency.
For a detailed example for how to set your EMS, see beginning of perfor-
mance curve section.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure. Canadian
the setting 1 flow rate of 26 lpm (7 gpm) and an air consumption
of 3 Nm
actual flow and air consumption values for
that specific EMS setting. NOTE: You can
interpolate between the setting curves for
operation at intermediate EMS settings.
Standards Association (CSA) configured pumps should not exceed 6.9
bar (100 psig) natural gas supply pressure. Please read all cautions and
suggested installation sections before operating any Wilden product.
45 [76]
15 [25]
30 [51]
Ship Weight .............. Aluminum 15 kg (34 lb)
Ductile Iron 26 kg (57 lb)
316 Stainless Steel 28 kg (61 lb)
TECHNICAL DATA
Air Inlet ...........................13 mm (1/2”)
...............................25 mm (1”)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mm (1”)
Inlet
Outlet
Suction Lift ..................... 5.5 m Dry (18.2’)
9.0 m Wet (29.5’)
.................0.34 L (0.09 gal)
1
Disp. Per Stroke
Max. Flow Rate .................212 lpm (56 gpm)
Max. Size Solids ...................6.4 mm (1/4”)
Displacement per stroke was calculated at 4.8 bar (70 psig)
air inlet pressure against a 2.1 bar (30 psig) head pressure
SETTING 4 PERFORMANCE CURVE
PX220/PX230 METAL TPE-FITTED
PX220/PX230 Performance 13 WILDEN PUMP & ENGINEERING, LLC
Page 16
EMS CURVE
PERFORMANCE
/h (16 scfm). The flow rate was reduced by 37% while the
/h (44 scfm) of air when run at 5.5 bar (80 psig) air inlet pressure
3
and 0.7 bar (10 psig) discharge pressure (see dot on performance
EXAMPLE
A PX220/PX230 metal, reduced-stroke PTFE-fitted pump operating
curve).
at EMS setting 4 achieved a flow rate of 129 lpm (34 gpm) using 75
Nm
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 0.36
(see dots on EMS curve).
3
air consumption was reduced by 64%, thus providing increased
27 Nm
efficiency.
For a detailed example for how to set your EMS, see beginning of perfor-
mance curve section.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure. Canadian
Multiplying the original setting 4 values by the X factors provides
the setting 2 flow rate of 81 lpm (21 gpm) and an air consumption of
Standards Association (CSA) configured pumps should not exceed 6.9
bar (100 psig) natural gas supply pressure. Please read all cautions and
suggested installation sections before operating any Wilden product.
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
determine 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 performance curve to calculate the
actual flow and air consumption values for
that specific EMS setting. NOTE: You can
interpolate between the setting curves for
operation at intermediate EMS settings.
SETTING 4 PERFORMANCE CURVE
................0.23 L (0.06 gal)
1
.......................... 13 mm (1/2”)
..............................25 mm (1”)
9.0 m Wet (29.5’)
PX220/PX230 METAL REDUCED-STROKE PTFE-FITTED
TECHNICAL DATA
Ship Weight ..............Aluminum 15 kg (34 lb)
Ductile Iron 26 kg (57 lb)
316 Stainless Steel 28 kg (61 lb)
Air Inlet
Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mm (1”)
Outlet
Disp. Per Stroke
Suction Lift .....................4.3 m Dry (14.2’)
WILDEN PUMP & ENGINEERING, LLC 14 PX220/PX230 Performance
Displacement per stroke was calculated at 4.8 bar (70 psig)
Max. Flow Rate ................186 lpm (49 gpm)
Max. Size Solids ..................6.4 mm (1/4”)
air inlet pressure against a 2.1 bar (30 psig) head pressure.
1
Page 17
PERFORMANCE
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
EMS CURVE
Air
Setting 3
Air Flow
Setting 2
Flow
Setting 1
Air Flow
X Factor
Multiplier
/h (30 scfm) of air when run at 4.1 bar (60 psig) air inlet
3
pressure and 2.8 bar (40 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 2.8 bar (40 psig) discharge pressure and
EMS setting 2, the flow X factor is 0.73 and the air X factor is 0.64
EXAMPLE
A PX220/PX230 metal, full-stroke PTFE fitted pump operating
at EMS setting 4 achieved a flow rate of 95 lpm (25 gpm) using
51 Nm
(see dots on EMS curve).
/h (19 scfm). The flow rate was reduced by 27% while the
3
Multiplying the original setting 4 values by the X factors provides
the setting 2 flow rate of 69 lpm (18 gpm) and an air consumption of
33 Nm
air consumption was reduced by 36%, thus providing increased
efficiency.
For a detailed example for how to set your EMS, see beginning of perfor-
mance curve section.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure. Canadian
Standards Association (CSA) configured pumps should not exceed 6.9
bar (100 psig) natural gas supply pressure. Please read all cautions and
suggested installation sections before operating any Wilden product.
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
determine 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 performance curve to calculate the
actual flow and air consumption values for
that specific EMS setting. NOTE: You can
interpolate between the setting curves for
operation at intermediate EMS settings.
SETTING 4 PERFORMANCE CURVE
.................0.4 L (0.11 gal)
1
...........................378 mm (14.7”)
PX220/PX230 METAL FULL-STROKE PTFE-FITTED
TECHNICAL DATA
............................244 mm (9.6”)
Width
Depth
Height ..........................340 mm (13.4”)
Ship Weight .........Stainless Steel 28 kg (61 lb)
PX220/PX230 Performance 15 WILDEN PUMP & ENGINEERING, LLC
.......................... 13 mm (1/2”)
..............................25 mm (1”)
Aluminum 15 kg (34 lb)
Cast Iron 26 kg (57 lb)
Air Inlet
Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mm (1”)
9.0 m Wet (29.5’)
Outlet
Suction Lift .....................5.5 m Dry (18.2’)
Disp. Per Stroke
Displacement per stroke was calculated at 4.8 bar (70 psig)
Max. Flow Rate ..............198 lpm (52.3 gpm)
Max. Size Solids ..................6.4 mm (1/4”)
air inlet pressure against a 2.1 bar (30 psig) head pressure.
1
Page 18
Section 5D
SUCTION-LIFT CURVES
PX220/PX230 METAL
SUCTION-LIFT
CAPABILITY
Suction-lift curves are calibrated for
pumps operating at 305 m (1,000')
above sea level. This chart is meant
to be a guide only. There are many
variables that can affect your
pump's operating characteristics.
The number of intake and discharge
elbows, viscosity of pumping fluid,
elevation (atmospheric pressure)
and pipe friction loss all affect the
amount of suction lift your pump will
attain.
WILDEN PUMP & ENGINEERING, LLC 16 PX220/PX230 Performance
Page 19
Section 6
SUGGESTED INSTALLATION
Wilden® pumps are designed to meet the performance
requirements of even the most demanding pumping applications.
They have been designed and manufactured to the highest
standards and are available in a variety of liquid path materials to
meet your chemical resistance needs. Refer to the performance
section of this manual for an in-depth analysis of the performance
characteristics of your pump. Wilden offers the widest variety of
elastomer options in the industry to satisfy temperature, chemical
compatibility, abrasion resistance and flex concerns.
The suction pipe size should be at least the equivalent or larger
than the diameter size of the suction inlet on your Wilden
pump. The suction hose must be non-collapsible, reinforced
type as these pumps are capable of pulling a high vacuum.
Discharge piping should also be the equivalent or larger than
the diameter of the pump discharge which will help reduce
friction losses. It is critical that all fittings and connections
are airtight or a reduction or loss of pump suction capability
will result.
INSTALLATION: Months of careful planning, study and selection
efforts can result in unsatisfactory pump performance if installation
details are left to chance.
Premature failure and long-term dissatisfaction can be avoided if
reasonable care is exercised throughout the installation process.
LOCATION: Noise, safety and other logistical factors usually
dictate where equipment will be situated on the production floor.
Multiple installations with conflicting requirements can result
in congestion of utility areas, leaving few choices for additional
pumps.
Within the framework of these and other existing conditions,
every pump should be located in such a way that six key factors
are balanced against each other to maximum advantage.
ACCESS: First of all, the location should be accessible. If it’s easy
to reach the pump, maintenance personnel will have an easier
time carrying out routine inspections and adjustments. Should
major repairs become necessary, ease of access can play a key
role in speeding the repair process and reducing total downtime.
AIR SUPPLY: Every pump location should have an air line large
enough to supply the volume of air necessary to achieve the
desired pumping rate. Use air pressure up to a maximum of 8.6
bar (125 psig) depending on pumping requirements.
For best results, the pumps should use a 5µ (micron) air filter,
needle valve and regulator. The use of an air filter before the pump
will ensure that the majority of any pipeline contaminants will be
eliminated.
NOTE: Canadian Standards Association (CSA) configured pumps
should not exceed 6.9 bar (100 psig) natural gas supply pressure.
Only CSA-configured pumps should be operated using natural
gas.
SOLENOID OPERATION: When operation is controlled by a
solenoid valve in the air line, three-way valves should be used.
This valve allows trapped air between the valve and the pump to
bleed off which improves pump performance. Pumping volume
can be estimated by counting the number of strokes per minute
and then multiplying the figure by the displacement per stroke.
MUFFLER: Sound levels are reduced below OSHA specifications
using the standard Wilden muffler. Other mufflers can be
used to further reduce sound levels, but they usually reduce
pump performance.
ELEVATION: Selecting a site that is well within the pump’s
dynamic lift capability will assure that loss-of-prime issues will be
eliminated. In addition, pump efficiency can be adversely affected
if proper attention is not given to site location.
PIPING: Final determination of the pump site should not be made
until the piping challenges of each possible location have been
evaluated. The impact of current and future installations should be
considered ahead of time to make sure that inadvertent restrictions
are not created for any remaining sites.
For U.L.-listed pumps, all installation must conform with NFPA 30,
NFPA 30A and other applicable codes. All pipe connections are to
be made using U.L. classified gasoline-resistant pipe compound.
Exhaust port is to be connected to pipe or tubing to be routed
outdoors or other location determined to be equivalent.
The best choice possible will be a site involving the shortest and
straightest hook-up of suction and discharge piping. Unnecessary
elbows, bends and fittings should be avoided. Pipe sizes should
be selected to keep friction losses within practical limits. All piping
should be supported independently of the pump. In addition, the
piping should be aligned to avoid placing stress on the pump
fittings.
Flexible hose can be installed to aid in absorbing the forces created
by the natural reciprocating action of the pump. If the pump is
to be bolted down to a solid location, a mounting pad placed
between the pump and the foundation will assist in minimizing
pump vibration. Flexible connections between the pump and
rigid piping will also assist in minimizing pump vibration. If quickclosing valves are installed at any point in the discharge system,
or if pulsation within a system becomes a problem, a surge
suppressor (SD Equalizer
pump, piping and gauges from surges and water hammer.
If the pump is to be used in a self-priming application, make sure
that all connections are airtight and that the suction lift is within
the model’s ability. NOTE: Materials of construction and elastomer
material have an effect on suction-lift parameters. Please refer to
the performance section for specifics.
When pumps are installed in applications involving flooded
suction or suction head pressures, a gate valve should be installed
in the suction line to permit closing of the line for pump service.
Pumps in service with a positive suction head are most efficient
when inlet pressure is limited to 0.5–0.7 bar (7–10 psig). Premature
diaphragm failure may occur if positive suction is 0.7 bar (10 psig)
and higher.
SUBMERSIBLE APPLICATIONS: Pro-Flo X™ pumps can be used for
submersible applications when using the Pro-Flo X™ submersible
option.
ALL WILDEN PUMPS ARE CAPABLE OF PASSING SOLIDS. A
STRAINER SHOULD BE USED ON THE PUMP INTAKE TO ENSURE
THAT THE PUMP'S RATED SOLIDS CAPACITY IS NOT EXCEEDED.
CAUTION: DO NOT EXCEED 8.6 BAR (125 PSIG) AIR SUPPLY
PRESSURE.
CAUTION: CANADIAN STANDARDS ASSOCIATION (CSA)
CONFIGURED PUMPS SHOULD NOT EXCEED 6.9 BAR (100PSIG)
NATURAL GAS SUPPLY PRESSURE.
CAUTION: FOR U.L. LISTED PUMPS, DO NOT EXCEED 3.4 BAR
(50 PSIG) AIR SUPPLY PRESSURE.
®
) should be installed to protect the
WIL-1161 0 - E- 02 17 WILDEN PUMP & ENGINEERING, LLC
Page 20
FOOTPAD
(OPTIONAL)
DISCHARGE
SUGGESTED INSTALLATION
This illustration is a generic
representation of an air-operated
double-diaphragm pump.
MUFFLER
FLEXIBLE
CONNECTION
SUCTION
EQUALIZER
SURGE DAMPENER
(OPTIONAL)
GAUGE
SHUT-OFF
VALVE
FLEXIBLE
CONNECTION
NEEDLE VALVE
COMBINATION
FILTER & REGULATOR
AIR SHUT-OFF VALVE
NOTE: In the event of a power failure, the shut-off
valve should be closed, if the restarting of the pump is
not desirable once power is regained.
AIR-OPERATED PUMPS: To stop the pump from
operating in an emergency situation, simply close
the shut-of f valve (user-supplied) installed in the air
supply line. A properly functioning valve will stop the
air supply to the pump, therefore stopping output. This
shut-off valve should be located far enough away from
the pumping equipment such that it can be reached
safely in an emergency situation.
WILDEN PUMP & ENGINEERING, LLC 18 WIL-1161 0 - E- 02
Page 21
SUGGESTED OPERATION & MAINTENANCE
OPERATION: The Pro-Flo X™ pumps are pre-lubricated
and do not require in-line lubrication. Additional
lubrication will not damage the pump, however if the
pump is heavily lubricated by an external source, the
pump’s internal lubrication may be washed away. If the
pump is then moved to a non-lubricated location, it may
need to be disassembled and re-lubricated as described
in the DISASSEMBLY / REASSEMBLY INSTRUCTIONS.
Pump discharge rate can be controlled by limiting the
volume and/or pressure of the air supply to the pump. A
regulator is used to control air pressure while a needle
valve is used to control volume. Pump discharge rate
can also be controlled by throttling the pump discharge
by partially closing a valve in the discharge line of the
pump. This action increases friction loss which reduces
flow rate. (See Section 5.) This is useful when the need
exists to control the pump from a remote location.
When the pump discharge pressure equals or exceeds
the air supply pressure, the pump will stop; no bypass
or pressure relief valve is needed, and pump damage
will not occur. The pump has reached a “deadhead”
situation and can be restarted by reducing the fluid
TROUBLESHOOTING
discharge pressure or increasing the air inlet pressure.
The Pro-Flo X™ pumps run solely on compressed air
and do not generate heat, therefore your process fluid
temperature will not be affected.
MAINTENANCE AND INSPECTIONS: Since each
application is unique, maintenance schedules may be
different for every pump. Frequency of use, line pressure,
viscosity and abrasiveness of process fluid all affect
the parts life of a Wilden pump. Periodic inspections
have been found to offer the best means for preventing
unscheduled pump downtime. Personnel familiar with
the pump’s construction and service should be informed
of any abnormalities that are detected during operation.
RECORDS: When service is required, a record should be
made of all necessary repairs and replacements. Over
a period of time, such records can become a valuable
tool for predicting and preventing future maintenance
problems and unscheduled downtime. In addition,
accurate records make it possible to identify pumps
that are poorly suited to their applications.
Pump will not run or runs slowly.
1. Ensure that the air inlet pressure is at least 0.3 bar
(5 psig) above startup pressure and that the differential
pressure (the difference between air inlet and liquid
discharge pressures) is not less than 0.7 bar (10 psig).
2. Check air inlet filter for debris (see SUGGESTED
INSTALLATION).
3. Check for extreme air leakage (blow by) that would
indicate worn seals /bores in the air valve, pilot
spool and main shaft.
4. Disassemble pump and check for obstructions in
the air passageways or objects that would obstruct
the movement of internal parts.
5. Check for sticking ball check valves. If material being
pumped is not compatible with pump elastomers,
swelling may occur. Replace ball check valves and
seals with proper elastomers. Also, as the check
valve balls wear out, they become smaller and can
become stuck in the seats. In this case, replace balls
and seats.
6. Check for broken inner piston that will cause the air
valve spool to be unable to shif t.
7. Remove plug from pilot spool exhaust.
Pump runs but little or no product flows.
1. Check for pump cavitation; slow pump speed down
to allow thick material to flow into liquid chambers.
WIL-1161 0 - E- 02 19 WILDEN PUMP & ENGINEERING, LLC
2. Verify that vacuum required to lift liquid is not
greater than the vapor pressure of the material
being pumped (cavitation).
3. Check for sticking ball check valves. If material being
pumped is not compatible with pump elastomers,
swelling may occur. Replace ball check valves and
seats with proper elastomers. Also, as the check
valve balls wear out, they become smaller and can
become stuck in the seats. In this case, replace balls
and seats.
Pump air valve freezes.
1. Check for excessive moisture in compressed
air. Either install a dryer or hot air generator for
compre ssed air. Alternativel y, a c oalescing filter may
be used to remove the water from the compressed
air in some applications.
Air bubbles in pump discharge.
1. Check for ruptured diaphragm.
2. Check tightness of outer pistons (refer to Section 7).
3. Check tightness of fasteners and integrity of
O-rings and seals, especially at intake manifold.
4. Ensure pipe connections are airtight.
Product comes out air exhaust.
1. Check for diaphragm rupture.
2. Check tightness of outer pistons to shaft.
Page 22
Section 7
PUMP DISASSEMBLY
Tools Required:
• 13 mm (1/2") Box
Wrench
• 2 – 25 mm (1") Sockets
or Adjustable Wrench
• Adjustable Wrench
• Vise equipped with
soft jaws (such as
plywood, plastic
or other suitable
material)
CAUTION: Before any maintenance or repair is attempted, the compressed air line
to the pump should be disconnected and all air pressure allowed to bleed from the
pump. Disconnect all intake, discharge and air lines. Drain the pump by turning it
upside down and allowing any fluid to flow into a suitable container. Be aware of
any hazardous effects of contact with your process fluid.
NOTE: The model used for these instructions incorporates rubber diaphragms and
balls. Models with PTFE diaphragms and balls are the same except where noted.
Step 1
Please note alignment marks on
center section. Use to properly align
liquid chamber to center section.
WILDEN PUMP & ENGINEERING, LLC 20 WIL-116 10 -E- 02
Step 2
Using a 13 mm (1/2") wrench,
loosen the discharge manifold from
the liquid chambers.
Step 3
Remove the discharge manifold to
expose the valve balls, valve seats
and valve seat O-rings.
Page 23
Section 4
PUMP DISASSEMBLY
Step 4
Remove the discharge valve
balls, seats and valve seat
O-rings from the discharge manifold
and liquid chamber, inspect for
nicks, gouges, chemical attack or
abrasive wear. NOTE: Replace worn
parts with genuine Wilden part for
reliable performance.
Step 5
Using a 13 mm (1/2") wrench,
remove the inlet manifold.
Step 6
Remove the inlet valve balls, seats
and valve seat O-rings from the
liquid chamber and inlet manifold,
inspect for nicks, gouges, chemical
attack or abrasive wear.
Step 7
Using a 13 mm (1/2") wrench,
remove the liquid chambers from
the center section.
WIL-1161 0 - E- 02 21 WILDEN PUMP & ENGINEERING, LLC
Step 8
The liquid chamber should be
removed to expose the diaphragm
and outer piston. Rotate center
section and remove the opposite
liquid chamber.
Step 9
Using two adjustable wrenches
or 25 mm (1”) sockets, remove
diaphragm assembly from center
section assembly.
Page 24
PUMP DISASSEMBLY
Step 10
After loosening and removing
the outer piston the diaphragm
assembly can be disassembled.
Step 11
To remove the remaining diaphragm
assembly from the shaft, secure
shaft with soft jaws (a vise fitted with
plywood or other suitable material) to
ensure shaft is not nicked, scratched,
or gouged. Using an adjustable
wrench, remove diaphragm assembly
from shaft. Inspect all parts for wear
and replace with genuine Wilden
parts if necessary.
GROUNDING STRAP FOR CSA PX220/PX230 PUMPS
Step 12
Inspect diaphragms, outer and
inner pistons for signs of wear.
Replace with genuine Wilden parts
if necessary.
v
Figure 1 Figure 2
Canadian Standards Association (CSA) configured pumps must be
electrically grounded using the grounding strap provided (Figure 1).
Improper grounding can cause improper and dangerous operation. To
properly attach the grounding strap to a CSA configured PX220/PX230
pump, identify the designated grounding location on the muffler plate;
using the provided self-tapping screw and grounding wire, thread the
grounding screw through the grounding wire lug, into the muffler plate and
tighten securely (figure 2). Completion of the pump grounding procedure
must be done in accordance with local codes, or in the absence of local
codes, an industrial or nationally recognized code having jurisdiction over
the specified installation.
WILDEN PUMP & ENGINEERING, LLC 22 WIL-116 10 -E- 02
Page 25
AIR VALVE DISASSEMBLY
Tools Required:
• 5 mm (3⁄16") Allen
Wrench
• Snap-Ring Pliers
• O-Ring Pick
CAUTION: Before any maintenance or repair is attempted, the compressed air line
to the pump should be disconnected and all air pressure allowed to bleed from the
pump. Disconnect all intake, discharge and air lines. Drain the pump by turning it
upside down and allowing any fluid to flow into a suitable container. Be aware of
hazardous effects of contact with your process fluid.
The PX220/PX230 metal pumps uses the Pro-Flo X™ air distribution system. A 6 mm
(1⁄4") air inlet connects the air supply to the center section. Proprietary composite seals
reduce the co efficient of friction and allow the pump to run lube-free. Constructed of
®
polypropylene, the Pro-Flo
air distribution system is designed to perform in on/off,
non-freezing, non-stalling, tough duty applications.
Step 1
Loosen the air valve bolts utilizing
a 5 mm (3 ⁄16") Allen wrench.
Step 2
Remove muffler plate and air valve
bolts from air valve assembly
exposing muffler gasket for inspec-
Step 3
Lift away air valve assembly
and remove air valve gasket for
inspection. Replace if necessary.
tion. Replace if necessary.
WIL-1161 0 - E- 02 23 WILDEN PUMP & ENGINEERING, LLC
Page 26
AIR VALVE DISASSEMBLY
Step 4
Remove air valve end cap to expose
air valve spool by simply lifting up
on end cap once air valve bolts are
removed.
Step 5
Remove air valve spool from air
valve body by threading one air
valve bolt into the end of the spool
and gently sliding the spool out of
the air valve body. Inspect seals for
signs of wear and replace entire
assembly if necessary. Use caution
when handling air valve spool to
prevent damaging seals.
NOTE: Seals should not be
removed from assembly. Seals are
not sold separately.
Step 6
Remove pilot spool sleeve retaining
snap ring on both sides of center
section with snap-ring pliers.
Step 7
Remove pilot spool sleeve from
center section.
WILDEN PUMP & ENGINEERING, LLC 24 WIL-116 10 -E- 02
Step 8
With O-ring pick, gently remove the O-ring from the opposite side of the
center hole cut on the spool. Gently remove the pilot spool from sleeve
and inspect for nicks, gouges or other signs of wear. Replace pilot sleeve
assembly or outer sleeve O-rings if necessary. During reassembly never
insert the pilot spool into the sleeve with the center cut side first, this end
incorporates the urethane O-ring and will be damaged as it slides over the
ports cut in the sleeve.
NOTE: Seals should not be removed from pilot spool.
Seals are not sold separately.
Page 27
AIR VALVE DISASSEMBLY
Step 9
Check center section Glyd™ rings
for signs of wear. If necessary,
remove Glyd™ rings with O-ring
pick and replace.
SUBMERSIBLE PRO-FLO X™
Step 1
Install a 1/4" NPT pipe plug
(00-7010-08 or 00-7010-03) into the
pilot spool bleed port located at the
front of the center section.
Non-Submersible Submersible
Step 2
Next, install an optional submersible air valve gasket
(02-2621-52). The submersible air valve gasket can be purchased
as a spare part or included with the purchase of a new
Pro-Flo X™ pump.
WIL-1161 0 - E- 02 25 WILDEN PUMP & ENGINEERING, LLC
Page 28
REASSEMBLY HINTS & TIPS
RE AS SE MB LY:
Upon performing applicable maintenance to the air
distribution system, the pump can now be reassembled.
Please refer to the disassembly instructions for photos
and parts placement. To reassemble the pump, follow
the disassembly instructions in reverse order. The air
distribution system needs to be assembled first, then
the diaphragms and finally the wetted path. Please find
the applicable torque specifications on this page. The
following tips will assist in the assembly process.
• Lubricate air valve bore, center section shaft and pilot
spool bore with NLGI grade 2 white EP bearing grease
or equivalent.
• Clean the inside of the center section shaft bore to
ensure no damage is done to new shaft seals.
• A small amount of NLGI grade 2 white EP bearing
grease can be applied to the muffler and air valve
gaskets to locate gaskets during assembly.
• Make sure that the exhaust port on the muffler plate
is centered between the two exhaust ports on the
center section.
• Stainless bolts should be lubed to reduce the possibility
of seizing during tightening.
PRO-FLO X™ MAXIMUM TORQUE
SPECIFICATIONS
Description of Part Torque
Air Valve 11.3 N•m (100 in-lb)
Dial Set Screw 11.3 N•m (100 in-lb)
Outer Pistons, All diaphragms 47.1 N•m (30 ft-lb)
Top and Bottom Manifold 8.5 N•m (75 in-lb)
Liquid Chamber to Center Section 8.5 N•m (75 in-lb)
Figure A
SHA FT SE AL
SHAFT SEAL INSTALLATION:
PRE-INSTALLATION
• Once all of the old seals have been removed, the
inside of the bushing should be cleaned to ensure no
debris is left that may cause premature damage to the
new seals.
INSTALLATION
The following tools can be used to aid in the installation
of the new seals:
Needle-Nose Pliers
Phillips Screwdriver
Electrical Tape
• Wrap electrical tape around each leg of the needlenose pliers (heat shrink tubing may also be used). This
is done to prevent damaging the inside surface of the
new seal.
• With a new seal in hand, place the two legs of the
needle-nose pliers inside the seal ring. (See Figure A.)
• Open the pliers as wide as the seal diameter will allow,
then with two fingers pull down on the top portion of
the seal to form a kidney shape. (See Figure B.)
• Lightly clamp the pliers together to hold the seal into
the kidney shape. Be sure to pull the seal into as tight
of a kidney shape as possible, this will allow the seal to
travel down the bushing bore easier.
• With the seal clamped in the pliers, insert the seal into
the bushing bore and position the bottom of the seal
into the correct groove. Once the bottom of the seal is
seated in the groove, release the clamp pressure on the
pliers. This will allow the seal to partially snap back to
its original shape.
• After the pliers are removed, you will notice a slight
bump in the seal shape. Before the seal can be properly
resized, the bump in the seal should be removed as
much as possible. This can be done with either the
Phillips screwdriver or your finger. With either the side
of the screwdriver or your finger, apply light pressure
to the peak of the bump. This pressure will cause the
bump to be almost completely eliminated.
• Lubricate the edge of the shaft with NLGI grade 2 white
EP bearing grease.
• Slowly insert the center shaft with a rotating motion.
This will complete the resizing of the seal.
• Perform these steps for the remaining seals.
NEEDLE-NOSE
Figure B
PLIERS
TAPE
WILDEN PUMP & ENGINEERING, LLC 26 WIL-116 10 -E- 02
SHA FT SE AL
TAPEAV
Page 29
NOTES
Page 30
Section 8 exploded view & parts listing
Section 8
EXPLODED VIEW & PARTS LISTING
PX220/PX230 METAL
EXPLODED VIEW
FULL-STROKE PTFE
REDUCED-STROKE PTFE
METAL ADS
FULL-STROKE IPD
STAINLESS
STEEL
FLANGED
LW0451 REV. A
WILDEN PUMP & ENGINEERING, LLC 28 W IL-116 10 - E- 02
Page 31
EXPLODED VIEW & PARTS LISTING
PX220/PX230 METAL
Item
®
Pro-Flo X
1
2 O-Ring, End Cap (-126, Ø1.362 x Ø.103) 2 01-2395-52 01-2395-52 01-2395-52
3 End Cap 2 01-2340-01 01-2340-01 01-2340-01
4 Screw, SHC, Air Valve (1/4"-20 x 3") 4 01-6001-03 01-6001-03 01-6001-03
5 Muffler Plate, Pro-Flo X
6 Gasket, Muffler Plate, Pro-Flo X
7 Gasket, Air Valve, Pro-Flo X
8 Center Section Assembly, Pro-Flo X
Pilot Sleeve Assembly
9
10 Pilot Spool Retaining O-Ring (-009. Ø.208 x Ø.070) 1 04-2650-49-700 04-2650-49-700 04-2650-49-700
11 Shaft Seal 2 02-3210-55-225 02-3210-55-225 02-3210-55-225
12 O-Ring, Air Adjustment (-206, Ø.484 x Ø.139) 1 00-1300-52 00-1300-52 00-1300-52
13 Retaining Ring 1 00-2650-03 00-2650-03 00-2650-03
14 Grounding Screw, (10-32 x 1/2") Self-Tapping 1 04-6345-08 04-6345-08 04-6345-08
15 Muffler, 3/4" MNPT 1 08-3510-99R 08-3510-99R 08-3510-99R
Air Valve Assembly
Description Qty.
1
®
®
®
® 2
AIR DISTRIBUTION COMPONENTS
1 02-2030-01 02-2030-01 02-2030-01
1 02-3185-01 02-3185-01 02-3185-01
1 02-3502-52 02-3502-52 02-3502-52
1 02-2620-52 02-2620-52 02-2620-52
1 02-3148-01 02-3148-01 02-3148-01
1 02-3880-99 02-3880-99 02-3880-99
PX220/AAAAA
P/N
PX220/WWAAA
P/N
PARTS LISTING
PX220/SSAAA
P/N
WETTED PATH COMPONENTS
16 Liquid Chamber 2 02-5015-01 02-5015-02 02-5015-03
17 Inlet Manifold, ANSI Flange 1 N/A N/A 02-5090-03
Inlet Manifold, DIN Flange 1 N/A N/A 02-5091-03
Inlet Manifold, Side Ported, 1" NPT 1 02-5095-01 02-5095-02-677 02-5095-03
Inlet Manifold, Side Ported, 1" BSPT 1 02-5096-01 02-5096-02-678 02-5096-03
Inlet Manifold, Center Ported, 1" NPT 1 02-5095-01-677 02-5090-02 02-5095-03-677
Inlet Manifold, Center Ported, 1" BSPT 1 02-5096-01-678 02-5091-02 02-5096-03-678
18 Discharge Manifold, ANSI Flange 1 N/A N/A 02-5030-03
Discharge Manifold, DIN Flange 1 N/A N/A 02-5031-03
Discharge Manifold, Side Ported, 1" NPT 1 02-5035-01 02-5035-02-697 02-5035-03
Discharge Manifold, Side Ported, 1" BSPT 1 02-5036-01 02-5036-02-698 02-5036-03
Discharge Manifold, Center Ported, 3/4" NPT 1 02-5035-01-697 02-5035-02-677 02-5035-03-697
Discharge Manifold, Center Ported, 3/4" BSPT 1 02-5036-01-698 02-5036-02-678 02-5036-03-698
Discharge Manifold, Center Ported, 1" NPT 1 02-5035-01-677 02-5030-02 02-5035-03-677
Discharge Manifold, Center Ported, 1" BSPT 1 02-5036-01-678 02-5031-02 02-5036-03-678
19 Screw, HHC, 5/16"-18 x 1" 32 08-6180-03-42 08-6180-03-42 08-6180-03-42
20 Washer, 5/16" 32 02-6731-03 02-6731-03 02-6731-03
21 Pipe Plug, 1" NPT 2 02-7010-01 02-7010-02 02-7010-03
Pipe Plug, 1" BSPT 2 02-7011-03 02-7011-02 02-7011-03
VALVE BALLS/VALVE SEATS/VALVE O-RINGS/MANIFOLD O-RING
22 Ball, Valve 4 * * *
23 O-ring, Manifold (-229, Ø2.359 x Ø.139) 4 * * *
24 Valve Seat 4 02-1125-01 02-1125-08 02-1125-03
25 O-ring, Valve Seat (-224, Ø1.734 x Ø.139) 4 * * *
FULL-STROKE RUBBER/TPE/PTFE/FSIPD COMPONENTS
26 Shaft 1 02-3810-03 02-3810-03 02-3810-03
27 Stud, 3/8"-16 x 1 1/4" (not shown) 2 N/A 02-6150-08 02-6150-08
28 Disc Spring 2 02-6802-08 02-6802-08 02-6802-08
29 Inner Piston 2 02-3701-01 02-3701-01 02-3701-01
30 Diaphragm, Primary 2 * * *
Diaphragm, IPD Primary 2 * * *
31 Diaphragm, Backup 2 * * *
32 Outer Piston 2 02-4550-01 02-4550-02 02-4550-03
REDUCED-STROKE PTFE COMPONENTS
26 Shaft, Reduced-Stroke PTFE 1 02-3840-03 02-3840-03 02-3840-03
27 Stud, 3/8"-16 x 1 1/4" (not shown) 2 N/A 02-6150-08 02-6150-08
28 Disc Spring 2 02-6802-08 02-6802-08 02-6802-08
29 Inner Piston, Reduced-Stroke PTFE 2 02-3751-01 02-3751-01 02-3751-01
30 Diaphragm, Primary, Reduced-Stroke PTFE 2 * * *
31 Diaphragm, Backup, Reduced-Stroke PTFE 2 * * *
32 Outer Piston, Reduced-Stroke PTFE 2 02-4601-01 02-4600-02 02-4600-03
* Refer to Elastomer Options in Section 9
1
Air Valve Assembly includes items 2 and 3
2
Center Section Assembly includes items 11 and 12.
For submersible Pro-Flo X™ pump, use air valve gasket 02-2621-52
and pipe plug 00-7010-08 or 00-7010-03.
All boldface items are primary wear parts.
LW0452 REV. B
WIL-1161 0 - E- 02 29 WILDEN PUMP & ENGINEERING, LLC
Page 32
Section 9
ELASTOMER OPTIONS
PX220/PX230 Metal
MATERIAL
Polyurethane
Neoprene
®
Buna-N
Conductive Buna-N®02-1010-86 N/A N/A N/A N/A N/A N/A N/A N/A N/A
FKM
EPDM
PTFE
Saniflex™
Wil-Flex™
Food Grade Wil-Flex™
Aluminum
Mild Steel
Stainless Steel
DIAPHRAGM
(2)
02-1010-50 N/A N/A N/A N/A N/A 02-1085-50 N/A 02-1205-50 02-1372-50
02-1010-51 N/A N/A N/A N/A 02-1060-51 02-1085-51 N/A 02-1205-51 02-1372-51
02-1010-52 N/A N/A N/A N/A N/A 02-1085-52 N/A 02-1205-52 70-1280-52
02-1010-53 N/A N/A N/A N/A N/A 02-1085-53 N/A 02-1205-53 02-1372-53
02-1010-54 N/A N/A N/A N/A 02-1060-54 02-1085-54 N/A 02-1205-54 02-1372-54
N/A 02-1040-55 N/A N/A 02-1010-55 N/A 02-1085-55 N/A 02-1205-55 70-1280-55
02-1010-56 N/A 02-1065-56 02-1031-56 N/A 02-1060-56 02-1085-56 N/A 02-1205-56 02-1372-56
02-1010-58 N/A N/A 02-1031-58 N/A N/A 02-1085-58 N/A 02-1205-58 02-1372-58
N/A N/A 02-1065-57 02-1031-57 N/A N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A 02-1125-01 N/A N/A
N/A N/A N/A N/A N/A N/A N/A 02-1125-08 N/A N/A
N/A N/A N/A N/A N/A N/A N/A 02-1125-03 N/A N/A
FULL-STROKE
DIAPHRAGMS
(2)
FULL-STROKE
BACKUP
DIAPHRAGMS
(2)
FULL-STROKE
IPD
DIAPHRAGMS
(2)
REDUCED-
STROKE
DIAPHRAGMS
(2)
REDUCED-
STROKE
BACKUP
DIAPHRAGMS
(2)
VALVE
BALLS
(4)
VALVE
SEATS
(4)
VALVE
SEAT
O-RINGS
(4)
MANIFOLD
LW0452 REV. B
O-RINGS
(4)
WILDEN PUMP & ENGINEERING, LLC 30 W IL-116 10 - E- 02
Page 33
NOTES
Page 34
NOTES
Page 35
WARRANTY
Each and every product manufactured by Wilden Pump and Engineering, LLC is built to meet the highest
standards of quality. Every pump is functionally tested to insure integrity of operation.
Wilden Pump and Engineering, LLC warrants that pumps, accessories and parts manufactured or supplied by
it to be free from defects in material and workmanship for a period of five (5) years from date of installation or
six (6) years from date of manufacture, whichever comes first. Failure due to normal wear, misapplication, or
abuse is, of course, excluded from this warranty.
Since the use of Wilden pumps and parts is beyond our control, we cannot guarantee the suitability of any pump
or part for a particular application and Wilden Pump and Engineering, LLC shall not be liable for any consequential
damage or expense arising from the use or misuse of its products on any application. Responsibility is limited
solely to replacement or repair of defective Wilden pumps and parts.
All decisions as to the cause of failure are the sole determination of Wilden Pump and Engineering, LLC.
Prior approval must be obtained from Wilden for return of any items for warranty consideration and must be
accompanied by the appropriate MSDS for the product(s) involved. A Return Goods Tag, obtained from an
authorized Wilden distributor, must be included with the items which must be shipped freight prepaid.
The foregoing warranty is exclusive and in lieu of all other warranties expressed or implied (whether written or oral)
including all implied warranties of merchantability and fitness for any particular purpose. No distributor or other
person is authorized to assume any liability or obligation for Wilden Pump and Engineering, LLC other than expressly
provided herein.
PLEASE PRINT OR TYPE AND FAX TO WILDEN
PUMP INFORMATION
Item # Serial #
Company Where Purchased
YOUR INFORMATION
Company Name
Industry
Name Title
Street Address
City State Postal Code Country
Telephone Fax E-mail Web Address
Number of pumps in facility? Number of Wilden pumps?
Types of pumps in facility (check all that apply): Diaphragm
Media being pumped?
Other
Centrifugal
Gear
Submersible
Lobe
How did you hear of Wilden Pump?
Other
Trade Journal
Trade Show
Internet/E-mail
Distributor
ONCE COMPLETE, FAX TO (909) 783-3440
OR GO TO PSGDOVER.COM > WILDEN > SUPPORT TO COMPLETE THE WARRANTY REGISTRATION ONLINE
NOTE: WARRANTY VOID IF PAGE IS NOT FAXED TO WILDEN OR SUBMIT TED ONLINE VIA THE PSGDOVER.COM WEBSITE
WILDEN PUMP & ENGINEERING, LLC
Page 36
PSG
22069 Van Buren St., Grand Terrace, CA 92313-5607
P: +1 (909) 422-1730
• F: +1 (909) 783-3440
wildenpump.com
LISTED
79
Where Innovation Flows
PSG® reserves the right to modify the information and illustrations contained in this document without prior notice. This is a non-contractual document. 11-2018
Authorized PSG Representative:
Copyrigh t ©2018, PS G®, A Dover Compa ny
REPLACES WIL-11610-E-01
WI L-1161 0 - E- 02
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