Dover Wilden Advanced P400 Instruction Manual

Where Innovation Flows
www.wildenpump.com
EOM
Engineering
Operation &
Maintenance
WIL-11210 - E-15
REP LAC ES WIL-11210 - E-14
P400/PX400
Advanced™Series
Metal Pumps

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
SECTION 6 SUGGESTED INSTALLATION, OPERATION & TROUBLESHOOTING.......37
SECTION 7 ASSEMBLY / DISASSEMBLY ...........................................40
SECTION 8 EXPLODED VIEW & PARTS LISTING
P400 Aluminum
Rubber/TPE/PTFE/Ultra-Flex™-Fitted ....................................48
P400 Stainless Steel
Rubber/TPE/PTFE/Ultra-Flex™-Fitted ....................................50
PX400 Aluminum
Rubber/TPE/PTFE/Ultra-Flex™-Fitted ....................................52
PX400 Stainless Steel
Rubber/TPE/PTFE/Ultra-Flex™-Fitted ....................................54
SECTION 9 ELASTOMER OPTIONS.................................................58
P400 Aluminum Performance Curves
Rubber-Fitted ...........................7
TPE-Fitted ..............................7
Reduced-Stroke PTFE-Fitted ...............8
Full-Stroke PTFE-Fitted ...................8
Ultra-Flex™-Fitted .......................9
P400 Stainless Steel Performance Curves
Rubber-Fitted ..........................10
TPE-Fitted .............................10
Reduced-Stroke PTFE-Fitted ..............11
Full-Stroke PTFE-Fitted ..................11
Ultra-Flex™-Fitted ......................12
Suction-Lift Curves
P400 Aluminum ........................13
P400 Stainless Steel & Alloy C ............14
Operating Principle .....................16
How to Use this EMS Curve ..............17
PX400 Aluminum Performance Curves
Rubber-Fitted .......................20
TPE-Fitted ..........................21
Reduced-Stroke PTFE-Fitted ...........22
Full-Stroke PTFE-Fitted ...............23
Ultra-Flex™-Fitted ...................24
PX400 Stainless Steel Performance Curves
Rubber-Fitted .......................25
TPE-Fitted ..........................26
Reduced-Stroke PTFE-Fitted ...........27
Full-Stroke PTFE-Fitted ...............28
Ultra-Flex™-Fitted ...................29
Suction-Lift Curves
PX400 Aluminum ....................35
PX400 Stainless Steel & Alloy C ........35
A. P400 Performance Curves B. PX400 Performance Curves

WIL-11210-E-15 1 WILDEN PUMP & ENGINEERING, LLC
CAUTION: Do not apply compressed air to the
exhaust port — pump will not function.
CAUTION: Do not over-lubricate air supply — excess
lubrication will reduce pump performance. Pump is
pre-lubed.
TEMPERATURE LIMITS:
Polypropylene 0°C to 79°C 32°F to 175°F
PVDF –12°C to 107°C 10°F to 225°F
PFA 7°C to 107°C 20°F to 225°F
Neoprene –18°C to 93°C 0°F to 200°F
Buna-N –12°C to 82°C 10°F to 180°F
EPDM –51°C to 138°C –60°F to 280°F
Viton®FKM –40°C to 177°C –40°F to 350°F
Wil-Flex™ –40°C to 107°C –40°F to 225°F
Saniflex™ –29°C to 104°C –20°F to 220°F
Polyurethane –12°C to 66°C 10°F to 150°F
Polytetrafluoroethylene (PTFE)
14°C to 104°C 40°F to 220°F
Nylon –18°C to 93°C 0°F to 200°F
Acetal –29°C to 82°C –20°F to 180°F
SIPD PTFE with Neoprene-backed 4°C to 104°C 40°F to 220°F
SIPD PTFE with EPDM-backed –10°C to 137°C 14°F to 280°F
Polyethylene 0°C to 70°C 32°F to 158°F
Geolast®–40°C to 82°C –40°F to 180°F
NOTE: Not all materials are available for all
models. Refer to Section 2 for material options
for your pump.
CAUTION: When choosing pump materials, be sure to
check the temperature limits for all wetted components.
Example: Viton®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 (E4)
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: Do not exceed 8.6 bar (125 psig) air supply
pressure.
CAUTION: The process fluid and cleaning fluids
must be chemically compatible with all wetted pump
components. Consult Chemical Resistance Guide (E4).
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 Teflon®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 Teflon®-fitted pumps come standard
from the factory with expanded Teflon®gaskets
installed in the diaphragm bead of the liquid chamber.
Teflon®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®pumps cannot be used in
submersible applications. Pro-Flo X™ is available
in both submersible and non-submersible options.
Do not use non-submersible Pro-Flo X™ models in
submersible applications. Turbo-Flo®pumps can also
be used in submersible applications.
CAUTION:Tighten all hardware prior to installation.
1
4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Section 1
CAUTIONS—READ FIRST!

WILDEN PUMP & ENGINEERING, LLC 2 WIL-11210-E-15
Section 2
WILDEN PUMP DESIGNATION SYSTEM
P400/PX400 METAL
38 mm (1-1/2") Pump
Maximum Flow Rate:
424 lpm (112 gpm)
LEGEND
P400 / XXXXX / XXX /XX / XXX /XXXX
O-RINGS
MODEL VALVE SEAT
VALVE BALLS
DIAPHRAGMS
AIR VALVE
CENTER BLOCK
AIR CHAMBERS
WETTED PARTS & OUTER PISTON
SPECIALTY
CODE
(if applicable)
NOTE: MOST ELASTOMERIC MATERIALS USE COLORED DOTS FOR IDENTIFICATION.
NOTE: Not all models are available with all material options.
Viton®are registered trademarks of DuPont Dow Elastomers.
SPECIALTY CODES
MATERIAL CODES
MODEL
P400 = PRO-FLO®
PX400 = PRO-FLO X™
XPX400 = PRO-FLO X™ ATEX
WETTED PARTS & OUTER PISTON
AA = ALUMINUM / ALUMINUM
HH = ALLOY C / ALLOY C
SS = STAINLESS STEEL /
STAINLESS STEEL
AIR CHAMBERS
A = ALUMINUM
C = TEFLON®-COATED
N = NICKEL-PLATED
S = STAINLESS STEEL
V = HALAR®-COATED
ALUMINUM (P400 only)
CENTER BLOCK
A = ALUMINUM (PX400 only)
N = NICKEL-PLATED
(PX400 only)
P = POLYPROPYLENE
(P400 only)
S = STAINLESS STEEL
AIR VALVE
A = ALUMINUM (PX400 only)
N = NICKEL-PLATED
(PX400 only)
P = POLYPROPYLENE
(P400 only)
S = STAINLESS STEEL
(PX400 only)
DIAPHRAGMS
BNS = BUNA-N (Red Dot)
BNU = BUNA-N, ULTRA-FLEX™
EPS = EPDM (Blue Dot)
EPU = EPDM, ULTRA-FLEX™
FSS = SANIFLEX™
[Hytrel®(Cream)]
FWS = SANITARY WIL-FLEX™,
EZ-INSTALL [Santoprene®
(Two Orange Dots)]
NES = NEOPRENE (Green Dot)
NEU = NEOPRENE, ULTRA-FLEX™
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
W/WIL-FLEX™ BACK-UP
VTS = VITON®(White Dot)
VTU = VITON®, ULTRA-FLEX™
WFS = WIL-FLEX™ [Santoprene®
(Orange Dot)]
XBS = CONDUCTIVE BUNA-N
(Two Red Dots)
ZGS = GEOLAST®, EZ-INSTALL
ZPS = POLYURETHANE,
EZ-INSTALL
ZSS = SANIFLEX™, EZ-INSTALL
ZWS = WIL-FLEX™, EZ-INSTALL
VALVE BALL
BN = BUNA-N (Red Dot)
EP = NORDEL®(Blue Dot)
FS = SANIFLEX™ [Hytrel
®
(Cream)]
FW= SANITARY WIL-FLEX™
[Santoprene®(Two Orange
Dots)]
NE = NEOPRENE (Green Dot)
PU = POLYURETHANE (Clear)
TF = TEFLON®PTFE (White)
VT = VITON®(Silver
or White Dot)
WF= WIL-FLEX™ [Santoprene
(Orange Dot)]
VALVE SEAT
A = ALUMINUM
BN = BUNA-N (Red Dot)
EP = NORDEL®(Blue Dot)
FS = SANIFLEX™ [Hytrel
®
(Cream)]
FW= SANITARY WIL-FLEX™
[Santoprene®(Two Orange
Dots)]
H = ALLOY C
M = MILD STEEL
NE = NEOPRENE (Green Dot)
PU = POLYURETHANE (Clear)
S = STAINLESS STEEL
VT = VITON®(Silver
or White Dot)
WF= WIL-FLEX™
[Santoprene (Orange Dot)]
VALVE SEAT O-RING
TF = TEFLON®PTFE
0044 Stallion balls & seats ONLY
0100 Wil-Gard 110V
0102 Wil-Gard sensor wires ONLY
0103 Wil-Gard 220V
0480 Pump Cycle Monitor (sensor & wires)
0483 Pump Cycle Monitor (module, sensor & wires)
0485 Pump Cycle Monitor (module, sensor & wires), DIN flange
0504 DIN flange
0560 Split manifold
0564 Split manifold, inlet ONLY
0563 Split manifold, discharge ONLY

WIL-11210-E-15 3 WILDEN PUMP & ENGINEERING, LLC
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.
FIGURE 1 The air valve directs pressurized
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, balancing
the load and 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).
FIGURE 2 When the pressurized diaphragm,
diaphragm A, reaches the limit of itsdischarge
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 lift 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. Atmos-
pheric 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.
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 exhaust stroke. As
the pump reaches its original starting
point, each diaphragm has gone through
one exhaust 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.
The Pro-Flo®patented air distribution system incorporates two
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 shift 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.
HOW IT WORKS—AIR DISTRIBUTION SYSTEM

WILDEN PUMP & ENGINEERING, LLC 4 WIL-11210-E-15
Section 4
DIMENSIONAL DRAWINGS
P400 Aluminum
P400 Stainless Steel/Alloy C
DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 343 13.5
B 79 3.1
C 320 12.6
D 531 20.9
E 594 23.4
F 122 4.8
G 81 3.2
H 312 12.3
J 292 11.5
K 244 9.6
L 206 8.1
M 152 6.0
N 170 6.7
P 10 0.4
DIN FLANGE
R 110 DIA. 4.3 DIA.
S 150 DIA. 5.9 DIA.
T 18 DIA. 0.7 DIA.
ANSI FLANGE
R 98 DIA. 3.9 DIA.
S 127 DIA. 5.0 DIA.
T 16 DIA. 0.6 DIA.
REV. D
DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 381 15.0
B 89 3.5
C 277 10.9
D 530 20.8
E 295 11.6
F 89 3.5
G 277 10.9
H 275 10.8
J 224 8.8
K 203 8.0
L 176 7.0
M 11 0.4
DIN FLANGE
N 150 DIA. 5.9 DIA.
P 110 DIA. 4.3 DIA.
R 18 DIA. 0.7 DIA.
ANSI FLANGE
N 127 DIA. 5.0 DIA.
P 97 DIA. 3.8 DIA.
R 15 DIA. 0.6 DIA.

WIL-11210-E-15 5 WILDEN PUMP & ENGINEERING, LLC
PX400 Stainless Steel/Alloy C
DIMENSIONAL DRAWINGS
PX400 Aluminum DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 343 13.5
B 79 3.1
C 323 12.7
D 531 20.9
E 594 23.4
F 122 4.8
G 325 12.8
H 48 1.9
J 132 5.2
K 310 12.2
L 521 20.5
M 244 9.6
N 206 8.1
P 152 6.0
R 170 6.7
S 10 0.4
DIN FLANGE
T 150 DIA. 5.9 DIA.
U 110 DIA. 4.3 DIA.
V 18 DIA. 0.7 DIA.
ANSI FLANGE
T 127 DIA. 5.0 DIA.
U 98 DIA. 3.9 DIA.
V 16 DIA. 0.6 DIA.
REV. B
DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 381 15.0
B 89 3.5
C 277 10.9
D 530 20.8
E 280 11.0
F 49 1.9
G 131 5.2
H 309 12.2
J 520 20.5
K 83 3.3
L 275 10.8
M 224 8.8
N 176 7.0
P 203 8.0
R 11 0.4
DIN FLANGE
S 150 DIA. 5.9 DIA.
T 110 DIA. 4.3 DIA.
U 18 DIA. 0.7 DIA.
ANSI FLANGE
S 127 DIA. 5.0 DIA.
T 97 DIA. 3.8 DIA.
U 15 DIA. 0.6 DIA.

WILDEN PUMP & ENGINEERING, LLC 6 WIL-11210-E-15
A. P400 Aluminum performance
Curves
P400 ALUMINUM
TPE-FITTED
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height .................................594 mm (23.4")
Width ..................................343 mm (13.5")
Depth ..................................340 mm (13.4")
Ship Weight .........Aluminum 25 kg (55 lb)
Air Inlet................................... 13 mm (1/2")
Inlet......................................38 mm (1-1/2")
Outlet...................................38 mm (1-1/2")
Suction Lift ......................3.9 m Dry (13.0')
8.9 m Wet (29.5')
Displacement/Stroke...... 1.14 L(0.30 gal)1
Max. Flow Rate............409 lpm (108 gpm)
Max. Size Solids................. 7.9 mm (5/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 114 lpm (30 gpm)
against a discharge pressure head of
2.8 bar (40 psig) requires 3.5 bar (51 psig)
and 20 Nm3/h (12 scfm) air consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height .................................594 mm (23.4")
Width ..................................343 mm (13.5")
Depth ..................................340 mm (13.4")
Ship Weight .........Aluminum 25 kg (55 lb)
Air Inlet ................................... 13 mm (1/2")
Inlet..................................... 38 mm (1-1/2")
Outlet.................................. 38 mm (1-1/2")
Suction Lift ......................4.2 m Dry (13.6')
8.9 m Wet (29.5')
Displacement/Stroke...... 1.14 L (0.30 gal)1
Max. Flow Rate........... 401 lpm (106 gpm)
Max. Size Solids................. 7.9 mm (5/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 114 lpm (30 gpm)
against a discharge pressure head of
2.8 bar (40 psig) requires 3.4 bar (50 psig)
and 20 Nm3/h (12 scfm) air consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.
P400 ALUMINUM
RUBBER-FITTED
PERFORMANCE

WIL-11210-E-15 7 WILDEN PUMP & ENGINEERING, LLC
Section 5A
PERFORMANCE
P400 ALUMINUM
PTFE-FITTED
P400 ALUMINUM
FULL-STROKE PTFE-FITTED
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height .................................594 mm (23.4")
Width ..................................343 mm (13.5")
Depth ..................................340 mm (13.4")
Ship Weight .........Aluminum 25 kg (55 lb)
Air Inlet................................... 13 mm (1/2")
Inlet......................................38 mm (1-1/2")
Outlet...................................38 mm (1-1/2")
Suction Lift ......................3.4 m Dry (11.3')
8.9 m Wet (29.5')
Displacement/Stroke .........0.57 L(0.15 gal)1
Max. Flow Rate..............329 lpm (87 gpm)
Max. Size Solids................. 7.9 mm (5/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 114 lpm (30 gpm)
against a discharge pressure head of
2.8 bar (40 psig) requires 3.8 bar
(55 psig) and 46 Nm3/h (27 scfm) air
consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.
Height ................................ 594 mm (23.4”)
Width ..................................343 mm (13.5”)
Depth ................................. 340 mm (13.4”)
Ship Weight .........Aluminum 25 kg (55 lb)
Air Inlet...................................13 mm (1/2”)
Inlet..................................... 38 mm (1-1/2”)
Outlet.................................. 38 mm (1-1/2”)
Suction Lift .......................... 5.6 Dry (18.4’)
9.3 m Wet (30.6’)
Disp. Per Stroke................... 1.1 L (.30 gal)1
Max. Flow Rate............ 420 lpm (111 gpm)
Max. Size Solids.................7.9 mm (5/16”)
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 254 lpm (67 gpm)
against a discharge pressure head of 2.1
bar (30 psig) requires 4.2 bar (60 psig)
and 88.4 Nm3/h (55 scfm).
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.

WILDEN PUMP & ENGINEERING, LLC 8 WIL-11210-E-15
P400 ALUMINUM
ULTRA-FLEX™-FITTED
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height .................................594 mm (23.4")
Width ..................................343 mm (13.5")
Depth ..................................340 mm (13.4")
Ship Weight .........Aluminum 25 kg (55 lb)
Air Inlet................................... 13 mm (1/2")
Inlet......................................38 mm (1-1/2")
Outlet...................................38 mm (1-1/2")
Suction Lift ......................4.2 m Dry (13.6')
8.9 m Wet (29.5')
Displacement/Stroke......0.79 L (0.21 gal)1
Max. Flow Rate............. 360 lpm (95 gpm)
Max. Size Solids................. 7.9 mm (5/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 114 lpm (30 gpm)
against a discharge pressure head of
2.8 bar (40 psig) requires 3.8 bar (55 psig)
and 20 Nm3/h (12 scfm) air consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.
PERFORMANCE
P400 STAINLESS STEEL
RUBBER-FITTED
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height .................................528 mm (20.8")
Width .................................. 384 mm (15.1")
Depth .................................. 295 mm (11.6")
Ship Weight ..................................................
316 Stainless Steel 35 kg (77 lb)
Alloy C 38 kg (83 lb)
Air Inlet................................... 13 mm (1/2")
Inlet......................................38 mm (1-1/2")
Outlet...................................38 mm (1-1/2")
Suction Lift ......................5.8 m Dry (19.0')
7.9 m Wet (26.0')
Displacement/Stroke..... 0.98 L (0.26 gal)1
Max. Flow Rate..............288 lpm (76 gpm)
Max. Size Solids.................4.8 mm (3/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 102 lpm (27 gpm)
against a discharge pressure head of
2.8 bar (40 psig) requires 4.1 bar (60 psig)
and 22 Nm3/h (13 scfm) air consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.

WIL-11210-E-15 9 WILDEN PUMP & ENGINEERING, LLC
PERFORMANCE
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
P400 STAINLESS STEEL
TPE-FITTED
Height .................................528 mm (20.8")
Width .................................. 384 mm (15.1")
Depth .................................. 295 mm (11.6")
Ship Weight .................................................
316 Stainless Steel 35 kg (77 lb)
Alloy C 38 kg (83 lb)
Air Inlet................................... 13 mm (1⁄2")
Inlet......................................38 mm (1-1/2")
Outlet...................................38 mm (1-1/2")
Suction Lift ...................... 5.2 m Dry (17.0')
8.8 m Wet (29.0')
Displacement/Stroke...... 1.10 L(0.29 gal)1
Max. Flow Rate..............307 lpm (81 gpm)
Max. Size Solids.................4.8 mm (3/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 114 lpm (30 gpm)
against a discharge pressure head of
2.8 bar (40 psig) requires 4.1 bar (60 psig)
and 26 Nm3/h (15 scfm) air consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.

WILDEN PUMP & ENGINEERING, LLC 10 WIL-11210-E-15
P400 STAINLESS STEEL
REDUCED-STROKE PTFE-FITTED
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height .................................528 mm (20.8")
Width .................................. 384 mm (15.1")
Depth .................................. 295 mm (11.6")
Ship Weight .................................................
316 Stainless Steel 35 kg (77 lb)
Alloy C 38 kg (83 lb)
Air Inlet................................... 13 mm (1⁄2")
Inlet......................................38 mm (1-1/2")
Outlet...................................38 mm (1-1/2")
Suction Lift ......................3.7 m Dry (12.0')
8.5 m Wet (28.0')
Displacement/Stroke...... 0.53 L (0.14 gal)1
Max. Flow Rate..............295 lpm (78 gpm)
Max. Size Solids.................4.8 mm (3/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 83 lpm (22 gpm)
against a discharge pressure head of
2.8 bar (40 psig) requires 4.1 bar
(60 psig) and 34 Nm3/h (20 scfm) air
consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.
P400 STAINLESS STEEL
FULL-STROKE PTFE-FITTED
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height ................................ 528 mm (20.8”)
Width ..................................384 mm (15.1”)
Depth ..................................295 mm (11.6”)
Ship Weight .... 316 Stainless 35 kg (77 lb)
Alloy C 38 kg (83 lb)
Air Inlet...................................13 mm (1/2”)
Inlet..................................... 38 mm (1-1/2”)
Outlet.................................. 38 mm (1-1/2”)
Suction Lift ..........................6.2 Dry (20.4’)
9.3 m Wet (30.6’)
Disp. Per Stroke...................1.0 L (.27 gal)1
Max. Flow Rate.......... 363 lpm (95.9 gpm)
Max. Size Solids................ 4.8 mm (3/16”)
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 238 lpm (63 gpm)
against a discharge pressure head of 2.8
bar (40 psig) requires 5.6 bar (80 psig)
and 114 Nm3/h (71 scfm) air consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.
80[136]
100[170]
60[102]
40[68]
20[34]
10 20 30 40 50 60 70 80 90 100 110 120
[38] [76] [114] [151] [189] [227] [265] [303] [341] [379] [416] [454]
PERFORMANCE

WIL-11210-E-15 11 WILDEN PUMP & ENGINEERING, LLC
PERFORMANCE
P400 STAINLESS STEEL
ULTRA-FLEX™-FITTED
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation
parameters will fall in the center of the pump's performance curve.
Height .................................528 mm (20.8")
Width .................................. 384 mm (15.1")
Depth .................................. 295 mm (11.6")
Ship Weight .................................................
316 Stainless Steel 35 kg (77 lb)
Alloy C 38 kg (83 lb)
Air Inlet................................... 13 mm (1/2")
Inlet......................................38 mm (1-1/2")
Outlet...................................38 mm (1-1/2")
Suction Lift ...................... 5.2 m Dry (17.0')
8.5 m Wet (28.0')
Displacement/Stroke......0.76 L(0.20 gal)1
Max. Flow Rate..............269 lpm (71 gpm)
Max. Size Solids.................4.8 mm (3/16")
1Displacement per stroke was calculated
at 4.8 bar (70 psig) air inlet pressure
against a 2.1 bar (30 psig) head pressure.
Example: To pump 170 lpm (45 gpm)
against a discharge pressure head of
2.1 bar (30 psig) requires 4.1 bar
(60 psig) and 85 Nm3/h (50 scfm) air
consumption.
Caution: Do not exceed 8.6 bar (125 psig)
air supply pressure.

WILDEN PUMP & ENGINEERING, LLC 12 WIL-11210-E-15
P400 ALUMINUM
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.
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.
P400 STAINLESS STEEL
& ALLOY C SUCTION-
LIFT CAPABILITY
SUCTION-LIFT CURVES

PX400
M E T A L
PX400 PERFORMANCE
WIL-11210-T-05

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
EMS is simple and
easy to use. With the
turn of an integrated
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.
Pro-Flo XTM Operating Principle
Section 5B
Turning the dial
changes the
relationship
between air inlet
and exhaust
porting.
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.
$
$
$
AIR CONSUMPTION
WILDEN PUMP & ENGINEERING, LLC 14 PX400 Performance

HOW TO USE THIS EMS CURVE
PX400 Performance 15 WILDEN PUMP & ENGINEERING, LLC
SETTING 4 PERFORMANCE CURVE EMS CURVE
8.2 GPM
Example data point = Example data point =
Figure 1 Figure 2
0.58
0.48
flow multiplier
air multiplier
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 consump-
tion curves and approximate air consumption
value (in this case, 9.8 scfm).
Step 2: Determining flow and air X Factors. Locate
your discharge pressure (40 psig) on the verti-
cal 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 inter-
sect the horizontal discharge pressure line.
After locating your EMS points on the 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 multi-
plier (0.58) in Step 2 to determine the flow rate
at EMS setting 2. Multiply the air consump-
tion (9.8 scfm) obtained in Step 1 by the air
X Factor multiplier (0.48) in Step 2 to deter-
mine the air consumption at EMS setting 2
(Figure 3).
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.
.58
4.8 gpm
(flow X Factor setting 2)
(flow rate for setting 2)
(air consumption for setting 4)
(air X Factor setting 2)
(air consumption for setting 2)
9.8 scfm
.48
4.7 scfm
8.2 gpm (flow rate for setting 4)
Example 1

HOW TO USE THIS EMS CURVE
WILDEN PUMP & ENGINEERING, LLC 16 PX400 Performance
EMS CURVE
SETTING 4 PERFORMANCE CURVE
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.
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
plant air frequently dips to 6.2 bar (90 psig)
pump performance will vary. Choose an oper-
ating pressure that is within your compressed
air systems capabilities. For this example we
will choose 4.1 bar (60 psig).
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 perfor-
mance 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 locat-
ing this point on the flow curve, draw a verti-
cal line downward until reaching the bottom
scale on the chart and identify the flow rate.
In our example it is 38.6 lpm (10.2 gpm). This
is the setting 4 flow rate. Observe the loca-
tion 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.
Step 4 : 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
bar (40 psig) psig discharge pressure line until
it crosses the vertical 0.49 X Factor line. Typi-
cally, this point lies between two flow EMS
setting curves (in this case, the point lies be-
tween the flow curves for EMS setting 1 and
2). Observe the location of the point relative
to the two curves it lies between and approxi-
mate the EMS setting (Figure 5). For more
precise results you can mathematically inter-
polate between the two curves to determine
the optimal EMS setting.
5 gpm / 10.2 gpm = 0.49 (flow X Factor)
DETERMINE EMS SETTING
For this example the EMS setting is 1.8.
Figure 4
Example data point = 10.2 gpm flow multiplier
Figure 5
EMS Flow
Settings 1 & 2
Example 2.1
0.49

HOW TO USE THIS EMS CURVE
PX400 Performance 17 WILDEN PUMP & ENGINEERING, LLC
EMS CURVE
SETTING 4 PERFORMANCE CURVE
Example 2.2
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 set-
ting curves closest to the EMS setting estab-
lished 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 plot-
ted 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. Af-
ter estimating (or interpolating) this point on
the curve, draw a vertical line downward un-
til reaching the bottom scale on the chart and
identify the air X Factor (Figure 7).
Step 2 : Determine air consumption. Multiply your
setting 4 air consumption (14 scfm) value by
the air X Factor obtained above (0.40) to deter-
mine your actual air consumption.
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.
Figure 6
0.40 air multiplier
Example data point =
Figure 7
10.2 gpm
Example data point =
For this example the air X Factor is 0.40.
1 4 scfm x 0.40 = 5.6 SCFM
EMS Air
Settings 1 & 2

PERFORMANCE
WILDEN PUMP & ENGINEERING, LLC 18 PX400 Performance
SETTING 4 PERFORMANCE CURVE EMS CURVE
PX400 ALUMINUM – TPE-FITTED PX400 ALUMINUM – RUBBER-FITTED
TECHNICAL DATA Height ..........................594 mm (23.4”) Width...........................343 mm (13.5”) Depth...........................310 mm (12.2”) Ship Weight ..............Aluminum 33 kg (72 lb) Air Inlet .......................... 19 mm (3/4”) Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 mm (1-1/2”) Outlet...........................38 mm (1-1/2”) Suction Lift .....................6.3 m Dry (20.5’)
9.0 m Wet (29.5’) Disp. Per Stroke................ 1.14 L (0.30 gal)1
Max. Flow Rate ...............424 lpm (112 gpm) Max. Size Solids .................7.9 mm (5/16”) 1Displacement 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: You can interpolate be- tween the setting curves for operation at in- termediate EMS settings.
EXAMPLE A PX400 aluminum, rubber-fitted pump operating at EMS setting 4, achieved a flow rate of 227 lpm (60 gpm) using 100 Nm3/h (59 scfm)
of air when run at 5.4 bar (79 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 0.52 (see dots on EMS curve). Multiplying the original setting 4 values by the X factors provides the setting 2 flow rate tof 143 lpm (38 gpm) and an air consumption of 52 Nm3/h (31 scfm). The flow rate was reduced by 37% while
the air consumption was reduced by 48%, 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.
p E r F o rmancE
WILDEN PUMP & ENGINEERING, LLC 20 PX400 Performance
sETTiNg 4 PERFORMANCE CuRvE EMs CuRvE
60 [102]
100[170]
80 [136]
10 20 30 40 50 60 70 80 90 100 110 120
[38] [76] [114] [151] [189] [227] [265] [303] [341] [379] [416] [454]
40 [68]
20 [34]
PX400 ALUMINUM – TPE-FITTED
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.
PX400 ALUMINUM – RUBBER-FITTED
TECHNICAL DATA Height ..........................594 mm (23.4”) Width...........................343 mm (13.5”) Depth...........................310 mm (12.2”) Ship Weight ............Aluminum 33 kg (72 lbs.) Air Inlet .......................... 19 mm (3/4”) Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 mm (1-1/2”) Outlet...........................38 mm (1-1/2”) Suction Lift .....................6.3 m Dry (20.5’)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0 m Wet (29.5’) Disp. Per Stroke................ 1.14 l (0.30 gal.)1
Max. Flow Rate ...............424 lpm (112 gpm) Max. Size Solids .................7.9 mm (5/16”) 1Displacement per stroke was calculated at
4.8 bar (70 psig) air inlet pressure against a 2 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 multi- plier with the original values from the setting 4 performance curve to calculate the actual flow and air consumption values for that spe- cific EMS setting. Note: you can interpolate between the setting curves for operation at intermediate EMS settings.
EXAMPLE A PX400 aluminum, Rubber-fitted pump operating at EMS setting 4, achieved a flow rate of 227 lpm (60 gpm) using 100 Nm3/h (59 scfm)
of air when run at 5.4 bar (79 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 0.52 (see dots on EMS curve). Multiplying the original setting 4 values by the “X factors” provides the setting 2 flow rate of 143 lpm (38 gpm) and an air consumption of 52 Nm3/h (31 scfm). The flow rate was reduced by 37% while
the air consumption was reduced by 48%, 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.
PERfoRMAnCEPERfoRMAnCE
WILDEN PUMP & ENGINEERING, LLC 20 PX400 Performance
sETTiNg 4 PERFORMANCE CuRvE EMs CuRvE
60 [102]
100[170]
80 [136]
10 20 30 40 50 60 70 80 90 100 110 120
[38] [76] [114] [151] [189] [227] [265] [303] [341] [379] [416] [454]
40 [68]
20 [34]
PX400 ALUMINUM – RUBBER-FITTED
TECHNICAL DATA Height ..........................594 mm (23.4”) Width...........................343 mm (13.5”) Depth...........................310 mm (12.2”) Ship Weight ............Aluminum 33 kg (72 lbs.) Air Inlet .......................... 19 mm (3/4”) Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 mm (1-1/2”) Outlet...........................38 mm (1-1/2”) Suction Lift .....................6.3 m Dry (20.5’)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0 m Wet (29.5’) Disp. Per Stroke................ 1.14 l (0.30 gal.)1
Max. Flow Rate ...............424 lpm (112 gpm) Max. Size Solids .................7.9 mm (5/16”) 1Displacement per stroke was calculated at
4.8 bar (70 psig) air inlet pressure against a 2 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 multi- plier with the original values from the setting 4 performance curve to calculate the actual flow and air consumption values for that spe- cific EMS setting. Note: you can interpolate between the setting curves for operation at intermediate EMS settings.
EXAMPLE A PX400 aluminum, Rubber-fitted pump operating at EMS setting 4, achieved a flow rate of 227 lpm (60 gpm) using 100 Nm3/h (59 scfm)
of air when run at 5.4 bar (79 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 0.52 (see dots on EMS curve). Multiplying the original setting 4 values by the “X factors” provides the setting 2 flow rate of 143 lpm (38 gpm) and an air consumption of 52 Nm3/h (31 scfm). The flow rate was reduced by 37% while
the air consumption was reduced by 48%, 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.