EOM

Engineering
Operation &
Maintenance

P1
Metal Pump

Where Innovation Flows

wildenpump.com
 TA B L E O F C O N T E N T S

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
A. P1 Performance Curves
Rubber-Fitted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
TPE-Fitted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PTFE-Fitted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
B. Suction-Lift Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SECTION 6 SUGGESTED INSTALLATION, OPERATION & TROUBLESHOOTING. . . . . . . . 8

SECTION 7 DISASSEMBLY / REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

SECTION 8 EXPLODED VIEW & PARTS LISTING

P1 Metal Rubber/TPE-Fitted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
P1 Metal PTFE-Fitted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
P1 Metal Saniflo™ 1935/2004/EC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

SECTION 9 ELASTOMER OPTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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Section 1
CAUTIONS—READ FIRST!

CAUTION: Do not apply compressed air to the exhaust port — CAUTION: Always wear safety glasses when operating pump.
pump will not function. If diaphragm rupture occurs, material being pumped may be
forced out air exhaust.
CAUTION: Do not over-lubricate air supply — excess
lubrication will reduce pump performance. Pump is pre-lubed. CAUTION: Before any maintenance or repair is attempted, the
compressed air line to the pump should be disconnected and all
TEMPERATURE LIMITS: air pressure allowed to bleed from pump. Disconnect all intake,
Polypropylene 0°C to 79°C 32°F to 175°F discharge and air lines. Drain the pump by turning it upside down
PVDF –12°C to 107°C 10°F to 225°F and allowing any fluid to flow into a suitable container.
PFA 7°C to 107°C 20°F to 225°F CAUTION: Blow out air line for 10 to 20 seconds before
Neoprene –18°C to 93°C 0°F to 200°F attaching to pump to make sure all pipeline debris is clear. Use an
Buna-N –12°C to 82°C 10°F to 180°F in-line air filter. A 5μ (micron) air filter is recommended.
EPDM –51°C to 138°C –60°F to 280°F NOTE: When installing PTFE diaphragms, it is important
FKM –40°C to 177°C –40°F to 350°F to tighten outer pistons simultaneously (turning in opposite
Wil-Flex™ –40°C to 107°C –40°F to 225°F directions) to ensure tight fit. (See torque specifications.)
Saniflex™ –29°C to 104°C –20°F to 220°F NOTE: Some PTFE-fitted pumps come standard from the factory
Polyurethane –12°C to 66°C 10°F to 150°F with expanded PTFE gaskets installed in the diaphragm bead of
Polytetrafluoroethylene (PTFE)1 4°C to 104°C 40°F to 220°F the liquid chamber. PTFE gaskets cannot be re-used.
Nylon –18°C to 93°C 0°F to 200°F NOTE: Before starting disassembly, mark a line from each liquid
Acetal –29°C to 82°C –20°F to 180°F chamber to its corresponding air chamber. This line will assist in
SIPD PTFE with Neoprene-backed 4°C to 104°C 40°F to 220°F proper alignment during reassembly.
SIPD PTFE with EPDM-backed –10°C to 137°C 14°F to 280°F
CAUTION: Pro-Flo ® pumps cannot be used in submersible
Polyethylene 0°C to 70°C 32°F to 158°F applications.
Geolast® –40°C to 82°C –40°F to 180°F
CAUTION: Tighten all hardware prior to installation.
4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
1 

NOTE: Not all materials are available for all models. Refer to CAUTION: For UL-listed pumps, all pipe connections are to be
Secton 2 for material options for your pump. made using U.L. classified gasoline-resistant pipe compound.
NOTE: UL-listed configured pumps have the folllowing CAUTION: For UL-listed pumps all installations must conform
temperature limits: UL 79 Buna-N =12.2°C to 52°C (10°F to 125°F). to NFPA 30, NFPA 30A, and all other applicable codes.
CAUTION: When choosing pump materials, be sure to check CAUTION: For UL-listed pumps, air exhaust port is to be
the temperature limits for all wetted components. Example: FKM connected to pipe or tubing to be routed outdoors or other
has a maximum limit of 177°C (350°F) but polypropylene has a location determined to be equivalent.
maximum limit of only 79°C (175°F).
CAUTION: For UL-listed pumps, pump is to be grounded using
CAUTION: Maximum temperature limits are based upon the jam-nut located at the top of the long vertical carriage bolt.
mechanical stress only. Certain chemicals will significantly The ground connection is marked with a tag having the grounding
reduce maximum safe operating temperatures. Consult Chemical symbol.
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: Do not exceed 8.6 bar (125 psig) air supply pressure.

CAUTION: For UL-listed pumps, do not exceed 3.4 bar (50 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
all 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.

WIL-10300-E-19 1 WILDEN PUMP & ENGINEERING, LLC

Section 2
W IL DEN PUMP DESIGN AT ION SYS T EM

P1/PX1 METAL LEGEND XPX1 / X X X X X / XXX / XX / X XX / XXXX

13 mm (½") Pump O-RINGS
MODEL VALVE SEAT SPECIALTY
Maximum Flow Rate: VALVE BALLS CODE
ATEX DIAPHRAGMS (if applicable)
62.8 lpm (16.6 gpm) AIR VALVE
CENTER SECTION
WETTED PARTS & OUTER PISTON

MATERIAL CODES
MODEL DIAPHRAGMS VALVE BALLS
®
P1 = Pro-Flo BNS = BUNA-N (Red Dot) BN = BUNA-N (Red Dot)
EPS = EPDM (Blue Dot) EP = EPDM (Blue Dot)
WETTED PARTS & OUTER PISTON FSS = SANIFLEX™
®
FS = S ANIFLEX™
®
AA = ALUMINUM / ALUMINUM [Hytrel (Cream)] 1,3 [Hytrel (Cream)] 1,3
AZ = ALUMINUM / NO PISTON PUS = POLYURETHANE (Clear) PU = POLYURETHANE (Brown)
SS = STAINLESS STEEL / TEU = PTFE w/EPDM TF = PTFE (White) 1,2,3
STAINLESS STEEL BACK-UP (White) 1,2,3 VT = FKM (White Dot)
®
SZ = STAINLESS STEEL / THU = PTFE W/HIGH-TEMP WF = WIL-FLEX™ [Santoprene
NO PISTON BUNA-N BACKUP (White) (Three Black Dots)]
TNL = PTFE W/NEOPRENE VALVE SEAT
CENTER SECTION BACK-UP O-RING, A = ALUMINUM
IPD (White) H = A LLOY C
GG = CONDUCTIVE ACETAL
TNU = PTFE W/NEOPRENE S = STAINLESS STEEL
JJ = CONDUCTIVE
BACK-UP (White) V = FKM (White Dot)
POLYPROPYLENE
TSU = PTFE W/SANIFLEX™
LL = ACETAL
BACK-UP (White) 1,2,3 VALVE SEAT O-RING
PP = POLYPROPYLENE
TVU = PTFE W/FKM BACKUP BN = BUNA-N
VTS = FKM (White Dot) EP = EPDM
AIR VALVE ®
WFS = WIL-FLEX™ [Santoprene  ANIFLEX™
FS = S
G = CONDUCTIVE ACETAL
(Three Black Dots)] ®
[Hytrel (Cream)] 1,3
J = CONDUCTIVE
XBS = C  ONDUCTIVE BUNA-N PU = POLYURETHANE (Brown)
POLYPROPYLENE
(Two Red Dots) TF = PTFE (White) 1,2,3
L = ACETAL ®
P = POLYPROPYLENE WF = WIL-FLEX™ [Santoprene ]

REFERENCES:
1 Meets Requirements of FDA CFR21.177

2 
Meets Requirements of USP Class VI
3 
Meets Requirements of 1935/2004/EC

SPECIALTY CODES
0023 Wing nuts 0103 Wil-Gard II™ 220V 0603 PFA-coated hardware, Wil-Gard 110V
0067 Saniflo™ FDA, Wil-Gard II™ 220V 0120 Saniflo™ FDA, Wil-Gard II™ 110V 0608 PFA-coated hardware, Wil-Gard 220V
0070 Saniflo™ FDA 0206 PFA-coated hardware, Wil-Gard II™ 0067E Saniflo™ FDA, Wil-Gard II™ 220V (1935/2004/EC)
0079 Tri-clamp fittings, wing nuts sensor wires ONLY 0070E Saniflo™ FDA (1935/2004/EC)
0080 Tri-clamp fittings ONLY 0390 CSA-approved 0120E Saniflo™ FDA, Wil-Gard II™ 110V (1935/2004/EC)
0100 Wil-Gard II™ 110V 0495 UL-approved
0102 Wil-Gard II™ sensor wires ONLY 0502 PFA-coated hardware

NOTE: Wilden UL-Listed pumps have been evaluated for use at a 25°C (77°F) ambient temperature with a maximum inlet pressure of 3.4 bar (50 psi).

WILDEN PUMP & ENGINEERING, LLC 2 WIL-10300-E-19

 Section 3
Section 3
HOW IT WORKS—PUMP
HOW IT WORKS
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.
The Wilden diaphragm pump is an air-operated, ptlacement, self-priming pump. These drawings show the flow pattern
through the pump upon its initial stroke. It is assumed the pump has no fluid in it prior to its initial stroke.

B A B A B A

OPEN

FIGURE 1 The air valve directs pressurized FIGURE 2 When the pressurized diaphragm, FIGURE 3 At completion of the stroke,
air to the back side of diaphragm A. The diaphragm A, reaches the limit of its discharge the air valve again redirects air to the
compressed air is applied directly to the stroke, the air valve redirects pressurized back side of diaphragm A, which starts
liquid column separated by elastomeric air to the back side of diaphragm B. The diaphragm B on its exhaust stroke. As
diaphragms. The diaphragm acts as pressurized air forces diaphragm B away the pump reaches its original starting
a separation membrane between the from the center while pulling diaphragm A point, each diaphragm has gone through
FIGURE 1   The air valve directs pressurized air to FIGURE 2  When the pressurized diaphragm, FIGURE 3   At completion of the stroke, the air valve
compressed air and liquid, balancing the to the center.
diaphragm A, reaches Diaphragm
the limit of B is its now on its
discharge one redirects
again exhaustairand
to theone
backdischarge stroke.
side of diaphragm A,
the back side of diaphragm A. The compressed
air is load
appliedand removing
directly mechanical
to the liquid column sepa- stress discharge
stroke, stroke.
the air valve Diaphragm
redirects pressurized B forces
air to thethe This starts
which constitutes
diaphragmone complete
B on its exhaustpumping
stroke. As
rated from the diaphragm.
by elastomeric diaphragms.The compressed
The diaphragm back sidevalve
inlet of diaphragm B. Theits
ball onto pressurized
seat due air forces
to the the pump
cycle. reaches
The pumpitsmay
original
take starting
severalpoint, each
cycles
acts airas amoves
separation
the membrane
diaphragm between
awaythefrom diaphragm
hydraulic B away from developed
forces the center block in while pull-
the liquid diaphragm has gone
to completely through
prime one exhaust on
depending and the
one
compressed air and liquid, balancing the load and ing diaphragm A to the center block. Diaphragm B discharge stroke. This constitutes one complete
the center of the pump. The opposite chamber
is now and manifold
on its discharge stroke.of the pump.
Diaphragm These
B forces conditions
pumping ofThe
cycle. thepump
application.
may take several cycles
removing mechanical stress from the diaphragm.
diaphragmairismoves
The compressed pulled in by the
the diaphragm awayshaft thesame hydraulic
inlet valve ball onto forces
its seat duelift tothe
the discharge
hydraulic to completely prime depending on the conditions of
from connected
the center blockto the pressurized
of the pump. The diaphragm.
opposite forces
valve developed
ball offinits theseat,
liquid while
chamber theand mani-
opposite the application.
diaphragm is pulledBinisbyontheitsshaft
Diaphragm connected
suction to air
stroke; folddischarge
of the pump. valveThese
ball is same
forcedhydraulic
onto its forces
seat,
the pressurized diaphragm. Diaphragm B is on its lift the discharge valve ball off its seat, while the
behind the diaphragm has been forced forcing
opposite fluid valve
discharge to flow ball isthrough
forced onto the pump
its seat,
suction stroke; air behind the diaphragm has been
forcedoutout to atmosphere
to the atmosphere through
through the the exhaust
exhaust discharge.
forcing fluid to The
flow movement
through the pump of diaphragm
discharge. A
port ofport
the of theThe
pump. pump.
movement The ofmovement
diaphragm of Thetoward
movement the ofcenter
diaphragm A toward
of the pumpthe center a
creates
B toward the centerBblock
diaphragm towardof thethepump createsofa the
center block of the pump
vacuum withincreates
liquida chamber
vacuum within liquid
A. Atmos-
vacuum within chamber B. Atmospheric pressure chamber A. Atmospheric pressure forces fluid into
pump creates a vacuum within chamber B. thepheric pressure
inlet manifold of theforces
pump. The fluid into
inlet the
valve ballinlet
is
forces fluid into the inlet manifold forcing the inlet
valve Atmospheric
ball off its seat. pressure
Liquid is free forces
to move fluid
pastinto manifold
forced of the
off its seat pump.
allowing theThe
fluid inlet
beingvalve
pumped ball
thevalve
the inlet inletball
manifold forcing
and fill the the inlet
liquid chamber valve
(see to fill the liquid
is forced chamber.
off its seat allowing the fluid being
shaded area).
ball off its seat. Liquid is free to move pumped to fill the liquid chamber.
past the inlet valve ball and fill the liquid
chamber (see shaded area).

HOW IT WORKS—AIR DISTRIBUTION SYSTEM

HOW IT WORKS—AIR DISTRIBUTION SYSTEM
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.

TT4845 EOM P4/PV4M 5/05

WIL-10300-E-19
33 WILDEN PUMP & ENGINEERING, LLC
WILDEN PUMP & ENGINEERING, LLC
Section 4
DIMENSIONAL DR AWINGS

P1 M ETAL DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 208 8.2
B 28 1.1
C 130 5.1
D 198 7.8
E 224 8.8
F 53 2.1
G 114 4.5
H 206 8.1
J 262 10.3
K 130 5.1
L 30 1.2
M 137 5.4
N 109 4.3
P 84 3.3
R 102 4.0
S 8 0.3
T 203 8.0
U 142 5.6
V 112 4.4
BSPT threads available. LW0403 REV. A

P1 M ETAL S A N I F LO FDA
DIMENSIONS
ITEM METRIC (mm) STANDARD (inch)
A 203 8.0
B 53 2.1
C 130 5.1
D 218 8.6
E 257 10.1
F 53 2.1
G 114 4.5
H 114 4.5
J 287 11.3
K 130 5.1
L 84 3.3
M 102 4.0
N 84 3.3
P 142 5.6
R 8 0.3
LW0401 REV. A

WILDEN PUMP & ENGINEERING, LLC 4 WIL-10300-E-19

Section 5A
PERFORMANCE

P1 ME TA L
RUBBER-FITTED
Ship Weight................ Aluminum 6 kg (13 lb)
Stainless Steel 9 kg (20 lb)
Air Inlet....................................... 6 mm (1/4")
Inlet..........................................13 mm (1/2")
Outlet....................................... 13 mm (1⁄2")
Suction Lift......................... 5.8 m Dry (19.0')
9.5 m Wet (31.0')
Disp. per Stroke1................ 0.11 L (0.029 gal)
Max. Flow Rate.............. 58.7 lpm (15.5 gpm)
Max. Size Solids..................1.59 mm (1/16")
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 18.9 lpm (5 gpm) against
a discharge pressure head of 2.7 bar (40
psig) requires 4 bar (60 psig) and 5.92 Nm3/h
(3.5 scfm) air consumption. (See dot on
chart.)
Flow rates indicated on chart were determined by pumping water.
Caution: Do not exceed 8.6 bar (125 psig) air
supply pressure. For optimum life and performance, pumps should be specified so that daily operation p­ arameters
will fall in the center of the pump's performance curve.

P1 ME TA L
TPE-FITTED
Ship Weight................ Aluminum 6 kg (13 lb)
Stainless Steel 9 kg (20 lb)
Air Inlet....................................... 6 mm (1/4")
Inlet..........................................13 mm (1/2")
Outlet.......................................13 mm (1/2")
Suction Lift......................... 5.2 m Dry (17.0')
9.5 m Wet (31.0')
Disp. per Stroke1................ 0.11 L (0.029 gal)
Max. Flow Rate.............. 58.3 lpm (15.4 gpm)
Max. Size Solids..................1.59 mm (1/16")
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 18.9 lpm (5 gpm) against
a discharge pressure head of 2.7 bar (40
psig) requires 4 bar (60 psig) and 5.92 Nm3/h
(3.5 scfm) air consumption. (See dot on
chart.)
Caution: Do not exceed 8.6 bar (125 psig) air Flow rates indicated on chart were determined by pumping water.
supply pressure. For optimum life and performance, pumps should be specified so that daily operation p­ arameters
will fall in the center of the pump's performance curve.

WIL-10300-E-19 5 WILDEN PUMP & ENGINEERING, LLC

 PERFORMANCE

P1 M E TAL
PTFE-FITTED
Ship Weight................ Aluminum 6 kg (13 lb)
Stainless Steel 9.2 kg (20 lb)
Air Inlet....................................... 6 mm (1/4")
Inlet..........................................13 mm (1/2")
Outlet.......................................13 mm (1/2")
Suction Lift......................... 4.9 m Dry (16.0')
9.5 m Wet (31.0')
Disp. per Stroke1................ 0.09 L (0.025 gal)
Max. Flow Rate.............. 54.4 lpm (14.4 gpm)
Max. Size Solids..................1.59 mm (1/16")
1
Displacement per stroke was calculated at 4.8 bar
(70) air inlet pressure against a 2.1 bar (30 psig)
head pressure.
Example: To pump 18.9 lpm (5 gpm) against
a discharge pressure head of 2.7 bar (40
psig) requires 4 bar (60 psig) and 5.92 Nm3/h
(3.5 scfm) air consumption. (See dot on
chart.)
Flow rates indicated on chart were determined by pumping water.
Caution: Do not exceed 8.6 bar (125 psig) air
supply pressure. For optimum life and performance, pumps should be specified so that daily operation p­ arameters
will fall in the center of the pump's performance curve.

WILDEN PUMP & ENGINEERING, LLC 6 WIL-10300-E-19

Section 5B
SUCTION-LIFT CURVES

P1 M E TA L

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.

WIL-10300-E-19 7 WILDEN PUMP & ENGINEERING, LLC

Section 6
SUGGES T ED INS TA L L AT ION
Wilden pumps are designed to meet the performance requirements For UL-listed pumps, all installation must conform with NFPA 30,
of even the most demanding pumping applications. They have NFPA 30A, and other applicable codes. All pipe connections are
been designed and manufactured to the highest standards and are to be made using UL-classified gasoline-resistant pipe compound.
available in a variety of liquid path materials to meet your chemical Exhaust port is to be connected to pipe or tubing to be routed
resistance needs. Refer to the performance section of this manual outdoors or other location determined to be equivalent.
for an in-depth analysis of the performance characteristics of your
The best choice possible will be a site involving the shortest and
pump. Wilden offers the widest variety of elastomer options in the
straightest hook-up of suction and discharge piping. Unnecessary
industry to satisfy temperature, chemical compatibility, abrasion
elbows, bends, and fittings should be avoided. Pipe sizes should
resistance and flex concerns.
be selected to keep friction losses within practical limits. All piping
The suction pipe size should be at least the equivalent or larger should be supported independently of the pump. In addition, the
than the diameter size of the suction inlet on your Wilden pump. piping should be aligned to avoid placing stress on the pump
The suction hose must be non-collapsible, reinforced type as these fittings.
pumps are capable of pulling a high vacuum. Discharge piping
Flexible hose can be installed to aid in absorbing the forces created
should also be the equivalent or larger than the diameter of the
by the natural reciprocating action of the pump. If the pump is to be
pump discharge which will help reduce friction losses. It is critical
bolted down to a solid location, a mounting pad placed between the
that all fittings and connections are airtight or a reduction or loss of
pump and the foundation will assist in minimizing pump vibration.
pump suction capability will result.
Flexible connections between the pump and rigid piping will also
INSTALLATION: Months of careful planning, study, and selection assist in minimizing pump vibration. If quick-closing valves are
efforts can result in unsatisfactory pump performance if installation installed at any point in the discharge system, or if pulsation within
details are left to chance. a system becomes a problem, a surge suppressor (SD Equalizer®)
should be installed to protect the pump, piping and gauges from
Premature failure and long-term dissatisfaction can be avoided if
surges and water hammer.
reasonable care is exercised throughout the installation process.
If the pump is to be used in a self-priming application, make sure
LOCATION: Noise, safety, and other logistical factors usually dictate
that all connections are airtight and that the suction lift is within
where equipment will be situated on the production floor. Multiple
the model’s ability. NOTE: Materials of construction and elastomer
installations with conflicting requirements can result in congestion
material have an effect on suction lift parameters. Please refer to the
of utility areas, leaving few choices for additional pumps.
performance section for specifics.
Within the framework of these and other existing conditions, every
When pumps are installed in applications involving flooded suction
pump should be located in such a way that the following key factors
or suction head pressures, a gate valve should be installed in the
are balanced against each other to maximum advantage.
suction line to permit closing of the line for pump service.
ACCESS: First of all, the location should be accessible. If it’s easy
Pumps in service with a positive suction head are most efficient
to reach the pump, maintenance personnel will have an easier time
when inlet pressure is limited to 0.5–0.7 bar (7–10 psig). Premature
carrying out routine inspections and adjustments. Should major
diaphragm failure may occur if positive suction is 0.7 bar (10 psig)
repairs become necessary, ease of access can play a key role in
and higher.
speeding the repair process and reducing total downtime.
NOTE: Pro-Flo® and Accu-Flo™ pumps do not have a single-point
AIR SUPPLY: Every pump location should have an air line large
exhaust option and are not submersible.
enough to supply the volume of air necessary to achieve the desired
pumping rate. ALL WILDEN PUMPS ARE CAPABLE OF PASSING SOLIDS. A
STRAINER SHOULD BE USED ON THE PUMP INTAKE TO ENSURE
For best results, the pumps should use a 5µ (micron) air filter,
THAT THE PUMP'S RATED SOLIDS CAPACITY IS NOT EXCEEDED.
needle valve and regulator. The use of an air filter before the pump
will ensure that the majority of any pipeline contaminants will be CAUTION: DO NOT EXCEED 8.6 BAR (125 PSIG) AIR SUPPLY
eliminated. PRESSURE.
SOLENOID OPERATION: When operation is controlled by a solenoid CAUTION: FOR UL-LISTED PUMPS, DO NOT EXCEED 3.4 BAR (50
valve in the air line, three-way valves should be used. This valve PSIG) AIR SUPPLY PRESSURE.
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.

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 S U G G E S T E D I N S TA L L AT I O N

GAUGE
(OPTIONAL)
EQUALIZER SHUT-OFF
SURGE DAMPENER
VALVE
(OPTIONAL)
DISCHARGE

FLEXIBLE
CONNECTION

MUFFLER

FLEXIBLE
CONNECTION
SUCTION

COMBINATION
FILTER & REGULATOR

AIR SHUT-OFF VALVE

FOOTPAD

NOTE: In the event of a power failure, the shut-off AIR-OPERATED PUMPS: To stop the pump from
valve should be closed, if the restarting of the pump operating in an emergency situation, simply close
is not desirable once power is regained. the shut-off valve (user-supplied) installed in the air
supply line. A properly functioning valve will stop the
air supply to the pump, therefore st pping 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.

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 S U G G E S T E D O P E R AT I O N & M A I N T E N A N C E
OPERATION: P1 pumps are pre-lubricated, and do not The P1 pumps run solely on compressed air and do not
require in-line lubrication. Additional lubrication will generate heat, therefore your process fluid temperature
not damage the pump, however if the pump is heavily will not be affected.
lubricated by an external source, the pump’s internal NOTE: Canadian Standards Association (CSA)-
lubrication may be washed away. If the pump is then configured pumps run solely on gas and do not
moved to a non-lubricated location, it may need to be generate heat.
disassembled and re-lubricated as described in the
REASSEMBLY/DISASSEMBLY INSTRUCTIONS. MAINTENANCE AND INSPECTIONS: Since each
application is unique, maintenance schedules may be
Pump discharge rate can be controlled by limiting the different for every pump. Frequency of use, line pressure,
volume and/or pressure of the air supply to the pump. A viscosity and abrasiveness of process fluid all affect
regulator is used to control air pressure while a needle the parts life of a Wilden pump. Periodic inspections
valve is used to control volume. Pump discharge rate have been found to offer the best means for preventing
can also be controlled by throttling the pump discharge unscheduled pump downtime. Personnel familiar with
by partially closing a valve in the discharge line of the the pump’s construction and service should be informed
pump. This action increases friction loss which reduces of any abnormalities that are detected during operation.
flow rate. (See Section 5.) This is useful when the need
exists to control the pump from a remote location. RECORDS: When service is required, a record should be
When the pump discharge pressure equals or exceeds made of all necessary repairs and replacements. Over
the air supply pressure, the pump will stop; no bypass a period of time, such records can become a valuable
or pressure relief valve is needed, and pump damage tool for predicting and preventing future maintenance
will not occur. The pump has reached a “deadhead” problems and unscheduled downtime. In addition,
situation and can be restarted by reducing the fluid accurate records make it possible to identify pumps
discharge pressure or increasing the air inlet pressure. that are poorly suited to their applications.

TROUBLESHOOTING
Pump will not run or runs slowly. Verify that vacuum required to lift liquid is not
2. 
1. Remove plug from pilot spool exhaust. greater than the vapor pressure of the material
being pumped (cavitation).
2. Ensure that the air inlet pressure is at least 0.3 bar
3. Check for sticking ball check valves. If material being
(5 psig) above startup pressure and that the differential
pumped is not compatible with pump elastomers,
pressure (the difference between air inlet and liquid
swelling may occur. Replace ball check valves and
discharge pressures) is not less than 0.7 bar (10 psig).
seats with proper elastomers. Also, as the check
3. Check air inlet filter for debris (see SUGGESTED valve balls wear out, they become smaller and can
INSTALLATION). become stuck in the seats. In this case, replace balls
4. 
Check for extreme air leakage (blow by) which and seats.
would indicate worn seals/bores in the air valve, Pump air valve freezes.
pilot spool and main shaft.
Check for excessive moisture in compressed
1. 
5. 
Disassemble pump and check for obstructions air. Either install a dryer or hot air generator
in the air passageways or objects which would for compressed air. Alternatively, a coalescing
obstruct the movement of internal parts. filter may be used to remove the water from the
6. Check for sticking ball check valves. If material being compressed air in some applications.
pumped is not compatible with pump elastomers,
swelling may occur. Replace ball check valves and Air bubbles in pump discharge.
seals with proper elastomers. Also, as the check 1. Check for ruptured diaphragm.
valve balls wear out, they become smaller and can 2. Check tightness of outer pistons (refer to Section 7).
become stuck in the seats. In this case, replace balls
and seats. 3. 
Check tightness of fasteners and integrity of
O-rings and seals, especially at intake manifold.
7. Check for broken inner piston which will cause the
air valve spool to be unable to shift. 4. Ensure pipe connections are airtight.

Pump runs but little or no product flows. Product comes out air exhaust.

1. Check for pump cavitation; slow pump speed down 1. Check for diaphragm rupture.
to allow thick material to flow into liquid chambers. 2. Check tightness of outer pistons to shaft.
WILDEN PUMP & ENGINEERING, LLC 10 WIL-10300-E-19
Section 7
P U M P DIS A S SE M BLY

TOOLS REQUIRED: CAUTION: Before any maintenance or repair is attempted, the compressed air line
• 3/8" Box Wrench to the pump should be disconnected and all air pressure allowed to bleed from the
• 7/16" Wrench pump. Disconnect all intake, discharge and air lines. Drain the pump by turning it
• Adjustable Wrench upside down and allowing any fluid to flow into a suitable container. Be aware of
• Vise equipped with soft any hazardous effects of contact with your process fluid.
jaws (such as plywood, NOTE: The model photographed for these instructions is a PX version and
plastic or other suitable incorporates rubber diaphragms, balls and seats.
material)

Step 1 Step 2 Step 3

Prior to disassembly, alignment Using a 7/16” box wrench, remove Next, remove the discharge
marks should be placed on the the nuts that connect the inlet and manifold from the pump.
liquid chambers and air chamber to discharge manifolds to the center
assist with proper alignment during section assembly.
reassembly.

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 P U M P D I S A S S E M B LY

Step 4 Step 5 Step 6

Remove the discharge valve ball, Now the center section assembly Remove the inlet valve ball, valve
valve seat and valve seat O-ring can be removed from the inlet seat and valve seat O-ring and
and inspect for signs of wear and manifold. inspect for signs of wear and/
replace, if necessary. or chemical attack. Replace, if
necessary.

Step 7 Step 8 Step 9

Using a 3/8” wrench, remove the Remove the tee section o-rings Using a 7/16” box end wrench,
small clamp band that connects the and inspect for signs of wear and/ remove the large clamp bands.
manifold elbows to the tee section. or chemical attack. Replace, if With the clamp bands removed, lift
necessary. the liquid chamber away from the
center section.

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 P U M P D I S A S S E M B LY

Step 10 Step 11A Step 11B

Using an adjustable wrench or Due to varying torque values, one B) The diaphragm assembly and
rotating the diaphragm by hand, of the two situations will occur: shaft remain connected leaving the
remove the diaphragm assembly opposite side diaphragm assembly
A) The outer piston, diaphragm and
from the center section. within the opposite side of the
inner piston will separate from the
center section assembly.
shaft which remains connected
to the opposite side diaphragm
assembly.

Step 13
To remove the 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 the diaphragm
assembly from shaft. Inspect all
parts for wear and replace with
genuine Wilden parts, if necessary.

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 A I R VA LV E / C E N T E R S E C T I O N D I S A S S E M B LY

TOOLS REQUIRED: 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
• 3/16" Hex-Head Wrench pump. Disconnect all intake, discharge and air lines. Drain the pump by turning it
• 7/32" Hex-Head Wrench upside down and allowing any fluid to flow into a suitable container. Be aware of
• Snap-Ring Pliers hazardous effects of contact with your process fluid.
• O-Ring Pick

Step 1 Step 2 Step 3

Using a 3/16” hex-head wrench, Remove the air valve and muffler Remove the air valve gasket
loosen the air valve bolts. plate from the center section. and inspet for nicks, gouges and
chemical attack. Replace if necessary
with genuine Wilden parts. NOTE:
When installing the air valve gasket
onto the center section assembly,
position gasket with the grooved
side facing away from the center
section.

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 A I R VA LV E / C E N T E R S E C T I O N D I S A S S E M B LY

Step 4 Step 5 Step 6

Remove muffler plate gasket and Remove air valve end cap to expose Remove air valve spool from air
inspect. Replace, if necessary. air valve spool. NOTE: The end cap valve body by threading one air valve
cannot be removed until removing bolt into the end of the spool and
air valve bolts. 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 7 Step 8 Step 9

Remove pilot spool retaining snap Remove pilot spool assembly from Using an O-ring pick, gently remove the pilot
ring on both sides of center section center section. spool retaining O-ring from the opposite
with snap-ring pliers. side of the notched end of the spool. Gently
remove the pilot spool from pilot spool sleeve
and inspect for nicks, gouges and other
signs of wear. Replace pilot spool assembly
or outer sleeve O-rings if necessary. During
re-assembly never insert the pilot spool into
the sleeve with the “notched” end side first,
this end incorporates the urethane O-ring
and will be damaged as it slides over the
ports cut in the pilot spool sleeve.

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 A I R VA LV E / C E N T E R S E C T I O N D I S A S S E M B LY

Step 10
Check center section shaft seals
for signs of wear. If necessary,
remove the shaft seals with an
O-ring pick and replace.

WILDEN PUMP & ENGINEERING, LLC 16 WIL-10300-E-19

 R E A S S E M B LY H I N T & T I P S

REASSEMBLY:
Upon performing applicable maintenance to the air dis- PRO-FLO® MAXIMUM TORQUE SPECIFICATIONS
tribution system, the pump can now be reassembled.
Please refer to the disassembly instructions for photos Description of Part Maximum Torque
and parts placement. To reassemble the pump, follow Air Valve, Pro-Flo® 3.1 N•m (27 in-lb)
the disassembly instructions in reverse order. The air
Outer Piston 14.1 N•m (125 in-lb)
distribution system needs to be assembled first, then the
diaphragms and finally the wetted path. Please find the Small Clamp Band 1.7 N•m (15 in-lb)
applicable torque specifications on this page. The follow- Large Clamp Band (Rubber/TPE-Fitted) 9.0 N•m (80 in-lb)
ing tips will assist in the assembly process. Large Clamp Band (PTFE-Fitted) 13.6 N•m (120 in-lb)
• Clean the inside of the center section shaft bore to Vertical Bolts 14.1 N•m (125 in-lb)
ensure no damage is done to new seals.
• Stainless bolts should be lubed to reduce the possibil-
ity of seizing during tightening.
• Level the water chamber side of the intake/discharge
manifold to ensure a proper sealing surface. This is
most easily accomplished by placing them on a flat
surface prior to tightening their clamp bands to the
desired torque (see below for Torque Specifications).
• Be sure to tighten outer pistons simultaneously on
PTFE-fitted pumps to ensure proper torque values.
• Ensure proper mating of liquid chambers to manifolds
prior to tightening vertical bolts. Overhang should be
equal on both sides.
• Apply a small amount of Loctite 242 to the shaft inter-
val threads before the diaphragm assembly.
• Concave side of disc spring in diaphragm assembly
faces toward shaft.

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Section 8
E XPLODED VIE W & PARTS LISTING

P1 METAL RUBBER/ TPE-FITTED EXPLODED VIEW

WILDEN PUMP & ENGINEERING, LLC 18 WIL-10300-E-19

 E XPLODED VIE W & PARTS LISTING

P1 METAL RUBBER/ TPE-FITTED PA R T S L I S T I N G

Qty. Per P1/APPP P1/SPPP P1/SPPP/070

Item Part Description Pump P/N P/N P/N
1 Pro-Flo™ Air Valve Assembly 1
1 01-2010-20 01-2010-20 01-2010-20
2 End Cap 1 01-2332-20 01-2332-20 01-2332-20
3 O-Ring (-126), End Cap (Ø.1.362 x Ø.103) 1 01-2395-52 01-2395-52 01-2395-52
4 Gasket, Air Valve 1 01-2615-52 01-2615-52 01-2615-52
5 Screw, HSHC, Air Valve (1/4"-20 x 3") 4 01-6001-03 01-6001-03 01-6001-03
6 Nut, Hex, (1/4”-20) 4 04-6400-03 04-6400-03 04-6400-03
7 Center Section Assembly 1 01-3140-20 01-3140-20 01-3140-20
8 Bushing, Reducer 1 01-6950-20 01-6950-20 01-6950-20
9 Removable Pilot Sleeve Assembly 1 01-3880-99 01-3880-99 01-3880-99
10 Shaft Seal 2 01-3220-55 01-3220-55 01-3220-55
11 Retaining Ring 2 00-2650-03 00-2650-03 00-2650-03
12 Muffler Plate 1 01-3181-20 01-3181-20 01-3181-20
13 Gasket, Muffler Plate 1 01-3505-52 01-3505-52 01-3505-52
14 Muffler 1 02-3510-99 02-3510-99 02-3510-99
15 Shaft, Pro-Flo™ 1 01-3810-03 01-3810-03 01-3810-03
16 Disc Spring 2 01-6802-08 01-6802-08 01-6802-08
17 Inner Piston 2 01-3711-08 01-3711-08 01-3711-08
18 Outer Piston 2 01-4570-01 01-4570-03 01-4570-03
19 Liquid Chamber 2 01-5000-01 01-5000-03 01-5000-03
20 Manifold Tee Section 2 01-5160-01 01-5160-03 01-5160-03-70
21 Inlet Manifold Elbow 2 01-5220-01 01-5220-03 01-5220-03
22 Discharge Manifold Elbow 2 01-5230-01 01-5230-03 01-5230-03
23 Screw, SHCS (Chamber Bolt) (1/4"-20 x 7 3/8) 4 01-6080-03 01-6080-03 01-6080-03
24 Vertical Bolt Washer (.2811.D. x .6250.D. x .065THR) 4 01-6730-03 01-6730-03 01-6730-03
25 Vertical Bolt Nut (1/4"-20) 4 04-6400-03 04-6400-03 04-6650-03-70
26 Diaphragm 2 * * 01-1010-56
27 Valve Ball 4 * * 01-1080-56
28 Valve Seat 4 01-1120-01 01-1120-03 01-1120-03P
29 Valve Seat O-Ring 4 * * 01-1200-56
30 Manifold O-Ring (Ø.987 x Ø.103) 4 * * 01-1300-56
31 Small Clamp Band Assy. 4 01-7100-03 01-7100-03 01-7100-03P
32 Small Clamp Band Bolt 8 01-6101-03 01-6101-03 01-6101-03
33 Small Clamp Band Nut (#10-24) 8 01-6400-03 01-6400-03 01-6400-03
34 Large Clamp Band Assy. 2 01-7300-03 01-7300-03 01-7300-03
35 Large Clamp Band Bolt (1/4"-20 x 2 1/4") 4 01-6070-03 01-6070-03 01-6070-03
36 Large Clamp Band Nut (1/4"-20) 4 04-6400-03 04-6400-03 04-6650-03-70
Wing Nut (Not Shown) 4 N/A N/A 04-6651-10
1Air Valve Assembly includes items 2 and 3.
*Refer to corresponding elastomer chart in Section 10.
070 Specialty Code = SanifloFDA
All boldface items are primary wear parts.

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 E XPLODED VIE W & PARTS LISTING

P1 METAL PTFE-FITTED EXPLODED VIEW

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 E XPLODED VIE W & PARTS LISTING

P1 METAL PTFE-FITTED PA R T S L I S T I N G

Qty Per. P1/APPP P1/SPPP P1/SPPP/070

Item Part Description Pump P/N P/N P/N
1 Pro-Flo™ Air Valve Assembly 1
1 01-2010-20 01-2010-20 01-2010-20
2 End Cap 1 01-2332-20 01-2332-20 01-2332-20
3 O-Ring (-126) (Ø.1.362 x Ø.103), End Cap 1 01-2395-52 01-2395-52 01-2395-52
4 Gasket, Air Valve 1 01-2615-52 01-2615-52 01-2615-52
5 Screw, HSHC, Air Valve (1⁄4-20 x 3") 4 01-6001-03 01-6001-03 01-6001-03
6 Nut, Hex, (1/4”-20) 4 04-6400-03 04-6400-03 04-6400-03
7 Center Section Assembly 1 01-3140-20 01-3140-20 01-3140-20
8 Bushing, Reducer 1 01-6950-20 01-6950-20 01-6950-20
9 Removable Pilot Sleeve Assembly 1 01-3880-99 01-3880-99 01-3880-99
10 Shaft Seal 2 01-3220-55 01-3220-55 01-3220-55
11 Retaining Ring 2 00-2650-03 00-2650-03 00-2650-03
12 Muffler Plate 1 01-3181-20 01-3181-20 01-3181-20
13 Gasket, Muffler Plate 1 01-3505-52 01-3505-52 01-3505-52
14 Muffler 1 02-3510-99 02-3510-99 01-3510-99
15 Shaft, Pro-Flo™ 1 01-3810-03 01-3810-03 01-3810-03
16 Disc Spring (Belleville Washer) 2 01-6802-08 01-6802-08 01-6802-08
17 Inner Piston 2 01-3711-08 01-3711-08 01-3711-08
18 Outer Piston 2 01-4570-01 01-4570-03 01-4570-03
19 Liquid Chamber 2 01-5000-01 01-5000-03 01-5000-03
20 Manifold Tee Section 2 01-5160-01 01-5160-03 01-5160-03-70
21 Inlet Manifold Elbow 2 01-5220-01 01-5220-03 01-5220-03
22 Discharge Manifold Elbow 2 01-5230-01 01-5230-03 01-5230-03
23 Screw, SHCS (Chamber Bolt) (1/4"-20 x 7 3/8) 4 01-6080-03 01-6080-03 01-6080-03
24 Vertical Bolt Washer (.2811.D. x .6250.D. x .065THR) 4 01-6730-03 01-6730-03 01-6730-03
25 Vertical Bolt Nut (1/4"-20) 4 04-6400-03 04-6400-03 04-6650-03-70
26 PTFE Primary Diaphragm 2 01-1010-55 01-1010-55 01-1010-55
27 Neoprene Backup Diaphragm 2 01-1060-51 01-1060-51 01-1060-51
28 Valve Ball 4 01-1080-55 01-1080-55 01-1080-55
29 Valve Seat 4 01-1120-01 01-1120-03 01-1120-03P
30 Valve Seat (-119) O-Ring (Ø.924 x Ø.103) 4 01-1200-55 01-1200-55 01-1200-55
31 Manifold (-120) O-Ring (Ø.987 x Ø.103) 4 01-1300-55 01-1300-55 01-1300-55
32 Small Clamp Band Assy. 4 01-7100-03 01-7100-03 01-7100-03
33 Small Clamp Band Bolt (#10-24 x 1") 8 01-6101-03 01-6101-03 01-6101-03
34 Small Clamp Band Nut (#10-24) 8 01-6400-03 01-6400-03 01-6400-03
35 Large Clamp Band Assy. 2 01-7300-03 01-7300-03 01-7300-03
36 Large Clamp Band Bolt (1/4"-20 x 2 1/4") 4 01-6070-03 01-6070-03 01-6070-03
37 Large Clamp Band Nut (1/4"-20) 4 04-6400-03 04-6400-03 04-6650-03-70
Wing Nut 4 N/A N/A 04-6651-10
1Air Valve Assembly includes items 2 and 3.
*Refer to corresponding elastomer chart in Section 10.
070 Specialty Code = SanifloFDA
All boldface items are primary wear parts.

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 E XPLODED VIE W & PARTS LISTING

P1 METAL SANIFLO™ 1935 / 2004 / EC EXPLODED VIEW

PTFE

PTFE IPD
LW0093, Rev. A

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 E XPLODED VIE W & PARTS LISTING

P1 METAL SANIFLO™ 1935 / 2004 / EC PA R T S L I S T I N G

P1/SSLLL/ P1/SSPPP/
Item Description Qty. 1935/2004/EC 1935/2004/EC
P/N P/N
AIR DISTRIBUTION COMPONENTS
1 Air Valve Assembly, Pro-Flo 1 1 01-2010-13 01-2010-20
2 End Cap 1 01-2332-13 01-2332-20
3 O-Ring (-126), End Cap (Ø1.362” x Ø.103”) 1 01-2395-52 01-2395-52
4 Gasket, Air Valve, Pro-Flo™ 1 01-2615-52 01-2615-52
5 Gasket, Muffler Plate, Pro-Flo™ 1 01-3505-52 01-3505-52
6 Muffler Plate, Pro-Flo™ 1 01-3181-13 01-3181-20
7 Screw, SHC, Air Valve (1/4”-20 x 3”) 4 01-6001-03 01-6001-03
8 Hex Nut, (1/4”-20) 4 04-6400-03 04-6400-03
9 Muffler, 1/2” MNPT 1 02-3510-99 02-3510-99
10 Center Section Assembly, Pro-Flo™ 2 1 01-3140-13 01-3140-20
11 Assembly, Pilot Sleeve 1 01-3880-99 01-3880-99
12 O-Ring (-009), Pilot Spool Retaining (Ø.208” x Ø.070”) 2 04-2650-49-700 04-2650-49-700
13 Seal, Shaft 2 01-3220-55 01-3220-55
14 Bushing, Reducer, 1/2” MNPT to 1/4” FNPT 1 01-6950-20 01-6950-20
15 Ring, Retaining 2 00-2650-03 00-2650-03
WETTED PATH COMPONENTS
16 Chamber, Liquid 2 01-5000-03P 01-5000-03P
17 Manifold, T-Section 2 01-5160-03-70P 01-5160-03-70P
18 Elbow, Inlet Manifold 2 01-5220-03P 01-5220-03P
19 Elbow, Discharge Manifold 2 01-5230-03P 01-5230-03P
20 O-Ring, Manifold (-120), (Ø.987 x Ø.103) 4 * *
21 Screw, SHCS, (Chamber Bolt) (1/4”-20 x 7-1/2”) 4 01-6080-03 01-6080-03
22 Washer, Flat (Ø.281” x Ø.625” x .065”) 4 01-6730-03 01-6730-03
23 Large Clamp Band Assembly 4 01-7300-03 01-7300-03
24 RHSN Bolt, Large Clamp Band (1/4”-20 x 2-1/4”) 4 01-6070-03 01-6070-03
25 Wing Nut, (1/4”-20) 8 04-6651-10 04-6651-10
26 Small Clamp Band Assembly 8 01-7100-03-70 01-7100-03-70
27 HHC Screw, Small Clamp Band (#10-24 x 1”) 8 01-6101-03 01-6101-03
28 HEX Nut, Small Clamp Band (#10-24) 8 01-6400-03 01-6400-03
VALVE BALLS/VALVE SEATS/VALVE O-RINGS
29 Ball, Valve, Pkg 4 1 * *
30 Seat, Valve 4 01-1120-03E 01-1120-03E
31 O-Ring (-119),Valve Seat (Ø.924 x Ø.139), Pkg 4 1 * *
FULL STROKE RUBBER/TPE/PTFE COMPONENTS
32 Shaft 1 01-3810-03 01-3810-03
33 Stud, Shaft (5/16”-18 x 1-3/8”) 2 01-6150-03 01-6150-03
34 Spring, Disk (Ø.331” x Ø.512”) 2 01-6802-08 01-6802-08
35 Piston, Inner 2 01-3711-08 01-3711-08
36 Diaphragm, Primary, Pkg 2 1 * *
37 Diaphragm, Back-Up, Pkg 2 1 * *
38 Piston, Outer 2 01-4570-03E 01-4570-03E
REDUCE STROKE PTFE/IPD COMPONENTS
32 Shaft 1 01-3810-03 01-3810-03
34 Spring, Disk (Ø.331” x Ø.512”) 2 01-6802-08 01-6802-08
35 Piston, Inner 2 01-3711-08 01-3711-08
36 Diaphragm, Primary, Pkg 2 1 * *
37 Diaphragm, Back-Up, Pkg 2 1 * *
LW0082 Rev. B
1 Air Valve Assembly includes items 2 and 3.
2 Center Section Assembly includes items 13 and 14.

All boldface items are primary wear parts.

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Section 9
ELASTOMER OPTIONS

P1 Metal
MATERIAL DIAPHRAGMS VALVE BALL VALVE SEAT O-RINGS MANIFOLD O-RINGS
Polyurethane 01-1010-50 01-1080-50 01-1200-50 01-1300-50
Buna-N 01-1010-52 01-1080-52 00-1260-52 01-1300-52
FKM 01-1010-53 01-1080-53 N/A N/A
Wil-Flex™ 01-1010-58 01-1080-58 00-1260-58 00-1260-58
Saniflex™ 01-1010-56 01-1080-56 01-1200-56 01-1300-56
PTFE** 01-1010-55 01-1080-55 01-1200-55 01-1300-55
EPDM 01-1010-54 01-1080-54 00-1260-54 01-1300-54

**NOTE: An integral piston PTFE diaphragm is also available. To order this diaphragm, use part number 01-1030-55.
When using this diaphragm, no outer pistons are needed. The outer piston is integrated into the diaphragm design.

P1 Metal Saniflo™ 1935/2004/EC

REDUCED-
STROKE BACKUP VALVE SEATS MANIFOLD
MATERIAL DIAPHRAGMS DIAPHRAGMS VALVE BALLS O-RINGS O-RINGS
FDA EPDM N/A 01-1060-54E N/A N/A N/A
Saniflex™ 01-1010-56E 01-1060-56E 01-1080-56E 01-1200-56E 01-1300-56E
PTFE 01-1010-55E N/A 01-1080-55E 01-1200-55E 01-1300-55E
LWOO82, Rev. B

WILDEN PUMP & ENGINEERING, LLC 24 WIL-10300-E-19

 DECLARATION OF CONFORMITY
STATEMENT OF COMPLIANCE TO REGULATIONS (EC) NO 1935/2004
ON MATERIALS AND ARTICLES INTEDNDED TO COME INTO CONTACT WITH FOOD
(as per Article 16 of EGULATION (EC) No 1935/2004)

Wilden Pump & Engineering, LLC, 22069 Van Buren Street, Grand Terrace, CA 92313-5607 USA,
certifies as the manufacturer that the Air-Operated Double Diaphragm pumps listed below comply with
the European Community Regulation 1935/2004/(EC) for Food Contact Materials.

§ 25 mm (1”) Saniflo Hygienic™ HS Metal Pump:

(PX,XPX)2 /(SS,SZ)(SSS,NNN)/(FBS,FES,FSL,FSS,LEL,TEU,TSS,TSU)/(FB,FE,FS,TF)/(FB,FE,FV,TF)/(0770-0789)E
§ 38 mm – 76 mm (1-½”-3”) Pro-Flo X Saniflo Hygienic™ HS Metal Pump:
(PX,XPX)(4,8,15)/(SS,SZ)(SSS,NNN)/(BNU,EPU,FBS,FES,FSL,FSS,LEL,TEU,TSS,TSU,ZSS)/(FB,FE,FS,FV,SF,TF,TM)/(FB,FE,TF)/(077
0-0789)E
§ 38 mm – 76 mm (1-½”-3”) Pro-Flo Shift Saniflo Hygienic™ HS Metal Pump:
(PS,XPS)(4,8,15)/(SS,SZ)(SSS,NNN)/(FBS,FES,FSL,FSS,LEL,TSS,ZSS)/(FB,FE,FS,FV,SF,TF,TM)/(FB,FE,TF)/(0770-0789)E
§ 76 mm (3”) Saniflo HS High Pressure Advanced Metal Pump
H1500/(SS,SZ)III/(FSL,TSS)/(TF,TM)/(FE,FV,TF)/0770E
§ 13 mm (½”)Pro-Flo & Pro-Flo X™ Saniflo FDA Metal Pump Models:
(P,PX,XPX)1/(SS,SZ)(AAA,GGG,JJJ,LLL,PPP)/(FSL,FSS,TEU,TSU)/(FS,TF)/S(FS,TF)/(0067,0070,0120)E
§ 25 mm (1”) Pro-Flo Saniflo FDA Metal Pump Models:
P2/(SS,SZ)(LLL,PPP)/(FBS,FES,FSL,FSS,LEL,TEU,TSS,TSU)/(FS,TF)/S(FS,TF)/2070E
§ 38 mm (1-½”) Pro-Flo & Pro-Flo X™ Saniflo FDA Metal Pump Models:
(P,PX,XPX)4/(SS,SZ)(AAA,LLL,NNN,SSS)/(BNU,EPU,FBS,FES,FSL,FSS,TEU, TSS, TSU)/(FS,TF)/(FS,STF)/(0067,0070,0075,0120)E
§ 51 mm (2”) Pro-Flo & Pro-Flo X™ Saniflo FDA Metal Pump Models:
(P,PX,XPX)8/(SS,SZ)(AAA,PPP,NNN,SSS)/( BNU,EPU,FBS,FES,FSS,TEU,TSU,TSS)/(FS,TF)/(FS,STF)/(0070,0075,0120)E
§ 76 mm 3” Pro-Flo X™ Saniflo FDA Metal Pump Models:
(PX,XPX)15/(SS,SZ)(AAA,NNN,SSS)/(BNU,EPU,FSL,FSS,TEU,TSU,TSS)/(FS,TF)/(FS,STF)/(0070,0075,0120)E
§ 38 mm 1-½” Pro-Flo Shift™ Saniflo FDA Metal Pump Models:
XPS4/(SS,SZ)(AAA,NNN,SSS)/(FBS,FES,FSL,FSS,TSS,ZSS)/(FS,TF)/(FS,STF)/(0067,0070,0775,0120)E
§ 51 mm 2” Pro-Flo Shift™ Saniflo FDA Metal Pump Models:
XPS8/(SS,SZ)(AAA,NNN,SSS)/(FBS,FES,FSL,FSS,TSS,ZSS)/(FS,TF)/(FS,STF)/(0070,0075,0120)E
§ 76 mm 3” Pro-Flo Shift™ Saniflo FDA Metal Pump Models:
XPS15/(SS,SZ)(AAA,NNN,SSS)/(FSL,FSS,TSS,ZSS)/(FS,TF)/(FS,STF)/(0070,0120,0341)E

Materials used in equipment that are intended to contact food belong to the groups of materials listed in Annex
1 (EC) 1935/2004 (List of groups of materials and articles which may be covered by specific measures)
5) Rubbers 8) Metal and Alloy 10) Plastics

Compliance is subject to material and equipment storage, handling and usage recommended by Wilden in the
engineering operation and maintenance manual and supplemental technical publications.

This declaration is based on the following information:

Statements of raw material suppliers

Wilden will make available to the competent authorities appropriate documentation to demonstrate compliance

Approved By:

Chris Distaso
Director of Engineering
Date: July 5, 2017
NOTES
 WARR ANT Y
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
P U M P I N F O R M AT I O N

Item # Serial #

Company Where Purchased

Y O U R I N F O R M AT I O N

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 Centrifugal Gear Submersible Lobe

Other

Media being pumped?

How did you hear of Wilden Pump? Trade Journal Trade Show Internet/E-mail Distributor

Other

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 SUBMITTED ONLINE VIA THE PSGDOVER.COM WEBSITE
WILDEN PUMP & ENGINEERING, LLC
 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:

PSG
22069 Van Buren St., Grand Terrace, CA 92313-5607
P: +1 (909) 422-1730 • F: +1 (909) 783-3440
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WIL-10300-E-19
Replaces WIL-10300-E-18