All-Flo A101 Owner's manual

IOM
INSTALLATION OPERATION
& MAINTENANCE
A101
METAL 1 INCH
AIR-OPERATED DOUBLE-DIAPHRAGM PUMP
WE PUMP SOLUTIONSWE PUMP SOLUTIONS
®®

ALF-12080-E-02 All-Flo2
TABLE OF
CONTENTS
SECTION 1 WARNINGS, DANGERS AND CAUTIONS 3
SECTION 2 MODEL DESIGNATION MATRIX & REPAIR KITS 5
SECTION 3 PRINCIPLES OF OPERATION 6
SECTION 4 DIMENSIONAL DRAWINGS 7
SECTION 5 PERFORMANCE CURVES
RUBBER DIAPHRAGMS..............................................................8
TPE DIAPHRAGMS........................................................................8
PTFE DIAPHRAGMS .....................................................................8
SECTION 6 INSTALLATION, TROUBLESHOOTING AND MAINTENANCE
INSTALLATION .................................................................................... 9-10
TROUBLESHOOTING ...................................................................11
OPERATION.....................................................................................12
MAINTENANCE ............................................................................12
SECTION 7 REPAIR AND ASSEMBLY
PUMP WET END REMOVAL............................................ 13-14
AIR VALVE REMOVAL ........................................................ 15-16
PILOT VALVE REMOVAL ....................................................17-18
TORQUE SPECIFICATIONS.......................................................18
SECTION 8 EXPLODED VIEWS AND PARTS LISTS 19-21
SECTION 9 ELASTOMERS 22
SECTION 10 WARRANTY AND REGISTRATION 23

ALF-12080-E-02 All-Flo3
SECTION 1
READ THESE WARNINGS AND SAFETY PRECAUTIONS PRIOR TO
INSTALLATION OR OPERATION. FAILURE TO COMPLY WITH THESE
INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND OR
PROPERTY DAMAGE. RETAIN THESE INSTRUCTIONS FOR FUTURE
REFERENCE.
CAUTION Always wear safety glasses when operating a pump
to avoid eye injury. If diaphragm rupture occurs, material being pumped
may be forced out of the air exhaust.
CAUTION Do not connect a compressed air source to the
exhaust port of the pump.
CAUTION Do not lubricate air supply.
CAUTION Do not exceed 120 psig (8.3 bar)
air-inlet pressure.
CAUTION Do not exceed 10 psig (0.7 bar)
or 23 ft-H2O suction pressure.
CAUTION The temperature of the process fluid and air
input must be no more than the maximum temperature allowed for the
appropriate non-metallic material. See the list of temperatures below for
each material’s maximum recommended temperature:
Buna-N (Nitrile): 10°F to 180°F (-12°C to 82°C)
Bunalast™: -40°F to 266°F (-40°C to 130°C)
EPDM: -40°F to 280°F (-40°C to 138°C)
FKM: -40°F to 350°F (-40°C to 177°C)
Hytrel®: -20°F to 220°F (-29°C to 104°C)
Nylon: 0°F to 200°F (-18°C to 93°C)
PTFE: 40°F to 220°F (4°C to 104°C)
Polyethylene: 32°F to 158°F (0°C to 70°C)
Polypropylene: 32°F to 180°F (0°C to 82°C)
Polyurethane: 10°F to 150°F (-12°C to 66°C)
PVDF: 0°F to 250°F (-18°C to 121°C)
Santoprene®: -40°F to 225°F (-40°C to 107°C)
Urethane: -65°F to 220°F (-54°C to 104°C)
Temperature limits are solely based upon mechanical stress and certain
chemicals will reduce the maximum operating temperature. The allowable
temperature range for the process fluid is determined by the materials
in contact with the fluid being pumped. Consult a chemical resistance
guide for chemical compatibility and a more precise safe temperature
limit. Always use minimum air pressure when pumping at elevated
temperatures.
CAUTION It is the end user’s responsibility to maintain the
process fluid’s temperature during use.
CAUTION Ensure all wetted components are chemically
compatible with the process fluid and the cleaning fluid.
CAUTIONS — READ FIRST!
WARNING
CAUTION
= Hazards or unsafe practices which
could result in severe personal injury,
death or substantial property damage
= Hazards or unsafe practices which
could result in minor personal injury,
product or property damage.
WARNING Prior to servicing the pump, ensure that the air and
fluid lines are closed and disconnected. While wearing personal protective
equipment, flush, drain and process liquid from the pump in a safe manner.
WARNING Maintenance must not be performed when a
hazardous atmosphere is present.
CAUTION The equipment must be inspected for visible
damage prior to use.
CAUTION Ensure pump is thoroughly cleaned and flushed
prior to installation into a process line.
CAUTION Blow out all compressed air lines in order to
remove any debris, prior to pump installation. Ensure that the muffler is
properly installed prior to pump operation.
CAUTION Ensure air exhaust is piped to atmosphere prior to a
submerged installation.
CAUTION Ensure all hardware is set to correct torque values
prior to operation.
WARNING Pump, valves and all containers must be properly
grounded prior to handling flammable fluids and/or whenever static
electricity is a hazard.
WARNING The Safety Supplement document is a part of the
manual. Please refer to the Safety Supplement document for a complete
list of safety considerations including considerations for safe operation and
maintenance of pumps marked for ATEX environments before starting the
pump.
WARNING This product can expose you to chemicals
including Nickel, Chromium, Cadmium, or Cobalt, which are known
to the State of California to cause cancer and/or birth defects or other
reproductive harm. For more information, go to www.P65Warnings.ca.gov.

ALF-12080-E-02 All-Flo4
NOTES:
SECTION 2

ALF-12080-E-02 All-Flo5
MODEL DESIGNATION MATRIX & REPAIR KITS- STAINLESS STEEL
Bold indicates recommended options
PRODUCT SERIES
FLUID CONNECTION TYPE
LIQUID SECTION
DIAPHRAGM
VALVE/BALL
VALVE SEAT
O-RINGS
SPECIAL (OTHER)
PORTING
AIR SECTION
SPECIAL (HARDWARE,
MUFFLER, LUG)
A 1 0 1 -1 2 3- 4 5 6 7 - 8 9 10
FLUID CONNECTION TYPE
N = NPT
B = BSPT
AIR SECTION
A = Aluminum
LIQUID SECTION
3 = Stainless Steel
DIAPHRAGMS
G = BunalastTM
S = Santoprene®
T = PTFE with Santoprene® Backup
E = EPDM
N = Buna – N
V = FKM
VALVE/BALL
G = BunalastTM
S = Santoprene®
T = PTFE
E = EPDM
N = Buna – N
V = FKM
3 = Stainless Steel
VALVE SEAT
3 = Stainless Steel
A = Aluminum
P = Polypropylene
Y = Nylon
O-RINGS
E = EPDM
N = Buna-N
T = PTFE
V = FKM
PORTING
B = Standard (Suction Center Front/Discharge
Center Rear)
A = Suction Center Front / Discharge Center Front
D = Suction Center Front / Discharge Right
E = Suction Center Front / Discharge Left
F = Suction Center Rear / Discharge Center Front
G = Suction Center Rear / Discharge Center Rear
I = Suction Center Rear / Discharge Right
J = Suction Center Rear / Discharge Left
P = Suction Right / Discharge Center Front
Q = Suction Right / Discharge Center Rear
S = Suction Right / Discharge Right
T = Suction Right / Discharge Left
U = Suction Left / Discharge Center Front
V = Suction Left / Discharge Center Rear
X = Suction Left / Discharge Right
Y = Suction Left / Discharge Left
4 = All Ports Open (Standard ports will be left
un-plugged)
SPECIAL OPTION
(HARDWARE, MUFFLER, LUG)
7 = Standard (Stainless Steel Hardware, Plastic
Muffler)
8 = Stainless Steel Hardware, Metal Muffler
B = PTFE Coated Stainless Steel Hardware,
Plastic Muffler
C = PTFE Coated Stainless Steel Hardware,
Metal Muffler
F = Stainless Steel Hardware, Plastic Muffler,
Grounding Lug Installed
G = Stainless Steel Hardware, Metal Muffler,
Grounding Lug Installed
H = PTFE Coated Stainless Steel Hardware, Plastic
Muffler, Grounding Lug Installed
I = PTFE Coated Stainless Steel Hardware,
Metal Muffler, Grounding Lug Installed
SPECIAL OPTION (OTHER)
0 = Standard (None)
1 = Cycle Counter Valve , DIN 43650B Connector
A = Grease Free (No Lubrication Assembly)
SIZE
WET END REPAIR KIT
Wet end kits are available and
consist of diaphragms, (back-up
diaphragms if required), balls,
seats and seat O-rings.
See matrix below.
1
2
6
7
8
9
10
AIR SECTION
A = Aluminum
DIAPHRAGM
VALVE/BALL
VALVE SEAT
O-RINGS
PRODUCT
SERIES
WET END
REPAIR KIT
PUMP SIZE
MATERIAL
AAK-100-2
PRODUCT
SERIES
PUMP SIZE
AIR END
REPAIR KIT
3
4
5
AIR END REPAIR KIT
Air end repair kit contains pilot
sleeve assembly and main air valve.
METALLIC WET END
AWE-100-4567-M

ALF-12080-E-02 All-Flo6
PRINCIPLES OF OPERATION
The air-valve directs pressurized air behind the diaphragm on the right,
causing the diaphragm on the right to move outward (to the right).
Since both the right diaphragm and the left diaphragm are connected
via a diaphragm rod, when the right diaphragm moves to the right, the
left diaphragm (through the action of the diaphragm rod) moves to the
right also.
When the diaphragm on the left side is moving to the right, it is referred
to as suction stroke. When the left diaphragm is in its suction stroke,
the left suction ball moves upward (opens) and the left discharge ball
moves downward (closes). This action creates suction and draws liquid
into the left side chamber.
The air-valve directs pressurized air behind the left diaphragm, causing
the left diaphragm to move outward (to the left).
Since both the left diaphragm and the right diaphragm are connected
via a diaphragm rod, when the left diaphragm moves to the left, the
right diaphragm (through the action of the diaphragm rod) moves to
the left also.
When the diaphragm on the left side moves outward, the left discharge ball
moves upward (opens) and the left suction ball moves downward (closes).
This causes the liquid to leave the left side liquid outlet of the pump.
Simultaneously, the right diaphragm moves inward (to the left), which
causes the right suction ball to open and the right discharge to close,
which in turn causes suction, drawing liquid into the right chamber.
The process of alternating right suction / left discharge (and vice-versa)
continues as long as compressed air is supplied to the pump.
HOW AN AIR OPERATED DOUBLE
DIAPHRAGM PUMP WORKS
SECTION 3

ALF-12080-E-02 All-Flo7
1” PUMP DIMENSIONS
STAINLESS STEEL
*Note - Suction Center Front / Discharge Center Rear are default ports. See part number matrix option code
for additional porting options.
**Note - Standard Muffler Shown
SECTION 4

ALF-12080-E-02 All-Flo8
PERFORMANCE CURVES
PERFORMANCE CURVE (1” RUBBER)* Performance Specications
Max. Flow: 48 gpm (182 lpm)
Max. Air Pressure: 120 psi (8.3 bar)
Max. Solids: 1/4” (6.4 mm)
Max. Suction Lift Dry: 17 ft-H2O (5.2 m-H2O)
Max. Suction Lift Wet: 30 ft-H2O (9.1 m-H2O)
Weight: SS-38 lbs (17 kg)
Air Inlet: 1/4” FNPT
Liquid Inlet: 1” FNPT or 1” FBSPT
Liquid Outlet: 1” FNPT or 1” FBSPT
Height: 13.22” (336 mm)
Width: 13.1” (332 mm)
Depth: 9.1” (232 mm)
Performance Specications
Max. Flow: 48 gpm (182 lpm)
Max. Air Pressure: 120 psi (8.3 bar)
Max. Solids: 1/4” (6.4 mm)
Max. Suction Lift Dry: 17 ft-H2O (5.2 m-H2O)
Max. Suction Lift Wet: 30 ft-H2O (9.1 m-H2O)
Weight: SS-38 lbs (17 kg)
Air Inlet: 1/4” FNPT
Liquid Inlet: 1” FNPT or 1” FBSPT
Liquid Outlet: 1” FNPT or 1” FBSPT
Height: 13.22” (336 mm)
Width: 13.1” (332 mm)
Depth: 9.1” (232 mm)
Performance Specications
Max. Flow: 45 gpm (170 lpm)
Max. Air Pressure: 120 psi (8.3 bar)
Max. Solids: 1/4” (6.4 mm)
Max. Suction Lift Dry: 17 ft-H2O (5.2 m-H2O)
Max. Suction Lift Wet: 30 ft-H2O (9.1 m-H2O)
Weight: SS-38 lbs (17 kg)
Air Inlet: 1/4” FNPT
Liquid Inlet: 1” FNPT or 1” FBSPT
Liquid Outlet: 1” FNPT or 1” FBSPT
Height: 13.22” (336 mm)
Width: 13.1” (332 mm)
Depth: 9.1” (232 mm)
5
SECTION
*Flow rates indicated on all three charts shown were determined by pumping water at flooded suction. For optimum life and performance, pumps should
be specified so that daily operation parameters will fall in the center of the pump performance curve.
PERFORMANCE CURVE (1” TPE)*
PERFORMANCE CURVE (1” PTFE)*
AIR CONSUMPTION (SCFM)
AIR CONSUMPTION (SCFM)
AIR CONSUMPTION (SCFM)

ALF-12080-E-02 All-Flo9
SECTION 6
INSTALLATION, TROUBLESHOOTING
AND MAINTENANCE
INSTALLATION
PIPING
Whenever possible ensure the pump is installed using
the shortest possible pipe lengths with the minimum
amount of pipe fittings. Ensure all piping is supported
independent of the pump.
Suction and discharge piping should not be smaller
than the connection size of the pump. When pumping
liquids of high viscosity, larger piping may be used, in
order to reduce frictional pipe loss.
Employ flexible hoses in order to eliminate the vibration
caused by the pump. Mounting feet can also be used to
reduce vibration effects.
All hoses should be reinforced, non-collapsible and be
capable of high vacuum service. Ensure that all piping
and hoses are chemically compatible with the process
and cleaning fluid.
For processes where pulsation effects should be
reduced, employ a pulsation dampener on the discharge
side of the pump.
For self-priming applications, ensure all connections
are airtight and the application is within the pumps
dry-lift capability. Refer to product specifications for
further details.
For flooded suction applications, install a gate valve
on the suction piping in order to facilitate service.
For unattended flooded suction operation, it is
recommended to pipe the exhaust air above the liquid
source. In the event of a diaphragm failure this will
reduce or eliminate the possibility of liquid discharging
through the exhaust onto the ground.
LOCATION
Ensure that the pump is installed in an accessible
location, in order to facilitate future service and
maintenance.
AIR
Ensure that the air supply is sufficient for the
volume of air required by the pump. Refer to product
specifications for further details. For reliable
operation, install a 5 micron air filter, air-valve and
pressure regulator. Do not exceed the pumps
maximum operating pressure of 120 psig.
REMOTE OPERATION
Utilize a three way solenoid valve for remote
operation. This ensures that air between the solenoid
and the pump is allowed to “bleed off,” ensuring
reliable operation. Liquid transfer volume is estimated
by multiplying displacement per stroke times the
number of strokes per minute
NOISE
Correct installation of the muffler reduces sound
levels. Refer to product specifications for
further details.
SUBMERGED OPERATION
For submersible operation, pipe the air exhaust to
atmosphere
GROUNDING THE PUMP
Loosen grounding screw and install a grounding wire.
Tighten grounding screw. Wire size should be a 12
gauge wire or larger. Connect the other end of the wire
to a true earth ground. Equipment must be grounded
to achieve ATEX rating and it is recommended to
configure the pump with a grounding lug option.

ALF-12080-E-02 All-Flo10
SUGGESTED INSTALLATION
This illustration is a generic
representation of an air operated
double-diaphragm pump.

ALF-12080-E-02 All-Flo11
TROUBLESHOOTING
PROBLEM EFFECT/SOLUTION
Pump Will Not Cycle
Discharge line closed or plugged
Discharge filter blocked
Check valve stuck
Air filter blocked
Air supply valve closed
Air supply hooked up to muffler side of pump
Compressor not producing air or turned off
Muffler iced or blinded
Diaphragm ruptured
Plant air supply line ruptured
Air valve wear/debris
Pilot sleeve wear/debris
Diaphragm rod broken
Diaphragm plate loose
Pumped Fluid Coming Out of Muffler
Diaphragm ruptured
Diaphragm plate loose
Inlet liquid pressure excessive (above 10 psig)
Pump Cycles but no Flow
Inlet strainer clogged
Suction valve closed
Suction line plugged
No liquid in the suction tank
Suction lift excessive
Debris stuck in valves
Excessive wear of check valves
Air leak on suction side with suction lift
Pump Cycles with Closed Discharge Valve
Debris stuck in check valve
Excessive wear of check valves
Pump Running Slowly/Not Steady
Air compressor undersized
Leak in air supply
Air-line, filter regulator or needle valve undersized
Muffler partially iced or blinded
Air valve gasket leak or misalignment
Air valve wear/debris
Pilot sleeve wear/debris
Liquid fluid filter blocked
Pump may be cavitating, reduce speed of operation
Suction strainer clogged
Pump Will Not Prime
Air leak in suction pipe
Air leak in pump manifold connections
Suction strainer and lines clogged
Excessive lift conditions
Check valve wear
Debris in check valve

ALF-12080-E-02 All-Flo12
OPERATION
The Air-Operated Double Diaphragm Pump requires
a minimum of 20 psig of air to operate, with some
variation according to diaphragm material. Increasing
the air pressure results in a more rapid cycling of the
pump and thus a higher liquid flow rate. In order to not
exceed 120 psig of inlet air pressure, and for accurate
control of the pump, it is suggested to use a pressure
regulator on the air inlet.
An alternate means of controlling the flow-rate of the
pump is to use an inlet air valve and partially open or
close accordingly. When the air valve is completely in
the closed position, the pump will cease to operate.
A third method of controlling the flow rate of the
pump is to use a liquid discharge valve. Closing the
liquid discharge valve will cause a decrease in the
flow rate since the pump will operate against a higher
discharge pressure.
Solenoid control of the inlet air may also be used in
order to facilitate remote operation. A three way
solenoid valve is recommended, in order to allow the
air to “bleed off” between the solenoid and the pump.
Do not use valves for flow control on the suction side
of the pump. (Closing or partially closing a liquid
suction valve restrict the suction line and may cause
damage to the diaphragms.) Suction strainers may
be employed to reduce or eliminate larger solids, but
routine maintenance is necessary in order to prevent
a restriction on the suction.
MAINTENANCE
Due to the unique nature of each application, periodic
inspection of the pump is the best method to determine
a proper maintenance schedule. A record should be
kept of all repairs made to an installed pump. This will
serve as the best predictor of future maintenance.
Typical maintenance involves replacing of “wear-
parts” such as the diaphragms, balls, valve seats and
O-rings. Proper maintenance can ensure trouble-free
operation of the pump. Refer to repair and assembly
instructions for further details.
WARNING Maintenance must not be performed
when a hazardous atmosphere is present.
MAINTENANCE SCHEDULE
WEEKLY (OR DAILY)
Make a visual check of the pump. If pumped fluid is
leaking out of the pump, pipe fittings or muffler turn
off pump and schedule maintenance.
EVERY THREE MONTHS
Inspect fasteners and tighten any loose fasteners to
recommended torque settings.
Schedule pump service based on pump’s service
history.

ALF-12080-E-02 All-Flo13
REPAIR AND ASSEMBLY
PUMP WET END REMOVAL
STEP 1
Using the 1/2 inch wrench
remove four “Hex-Head Cap
Screws (5/16”-18 x 1”), and four
"Flat and Lock Washers (5/16”)"
from the “Discharge Manifold”.
STEP 2
Remove the “Discharge Manifold”.
STEP 3
Remove the “O-Ring”, “Valve Seat”
and “Ball” from the “Discharge
Manifold”.
TOOLS NEEDED
1) One Wrench, ½ Inch
2) Two Wrenches, 7/16 Inch
3) Two Wrenches, ¾ Inch
WARNING Prior to servicing the pump, ensure that the air
and fluid lines are closed and disconnected. While wearing personal
protective equipment, flush, drain and process liquid from the
pump in a safe manner.
WARNING Maintenance must not be performed when a hazardous
atmosphere is present.
STEP 4
Using the 1/2 inch wrench remove
four “Hex-Head Cap Screws
(5/16”-18 x 1”)", and four “Flat and
Lock Washers (5/16”)” from the
“Suction Manifold”.
STEP 5
Remove the “Suction Manifold”.
STEP 6
Remove the “O-Ring”, “Valve
Seat” and “Ball” from the “Outer
Chamber”.
SECTION 7

ALF-12080-E-02 All-Flo14
STEP 7
In order to remove both “Outer
Chambers”, using the ½ inch
wrench, remove eight “Hex Head
Cap Screws (5/16”–18 x 1”)", and
eight “Flat and Lock Washers
(5/16”)” from each side.
STEP 8
Remove both “Outer Chambers”
from the “Intermediate”.
STEP 9
Using two ¾ inch wrenches,
remove “Outer Diaphragm Plate”,
“Diaphragm”, “Inner Diaphragm
Plate” and “Bumper” from one
side of the pump.
STEP 10
Placing the ¾ inch wrench on the remaining “Outer Diaphragm Plate”,
and the 7/16 inch wrench on the “Diaphragm Rod Assembly”, remove the
remaining “Outer Diaphragm Plate”, “Diaphragm”, “Inner Diaphragm
Plate” and “Bumper” from the other side of the pump.
PUMP WET END ASSEMBLY
To assemble the wet end of the pump, reverse the order of disassembly.
Ensure all hardware is fastened in accordance with torque specifications
(see page 18). Inverting one of the diaphragms during reassembly will
facilitate ease of assembly.

ALF-12080-E-02 All-Flo15
AIR VALVE REMOVAL
STEP 1
Using the 7/16 inch wrench, remove
four “Hex Head Cap Screws
(1/4”–20 x 3”)”, four “Lock Wash-
ers” (1/4”) and four flat
washers (1/4”)”.
STEP 2
Remove the main “Air-Valve
Assembly” from the pump.
STEP 3
Remove the “Air-Valve Gasket”
from the main “Air-Valve
Assembly”.
TOOLS NEEDED
1) One Wrench, 7/16 Inch
2) One Pick, General Purpose
3) One Pair of Pliers
WARNING Prior to servicing the pump, ensure that the air
and fluid lines are closed and disconnected. While wearing personal
protective equipment, flush, drain and process liquid from the
pump in a safe manner.
WARNING Maintenance must not be performed when a hazardous
atmosphere is present.
STEP 4
Remove the “Shuttle Plate” from
the main “Air-Valve Assembly”.
Note: The smooth shinny side of
the shuttle plate should be toward
the shuttle car.
STEP 5
Remove the “Shuttle” from the
main “Air-Valve Assembly”.
STEP 6
Using the pair of pliers, remove
the “Air Valve End Plug” from the
main “Air-Valve Assembly”.
Ensure the “O-Ring” is installed
when reassembling.
REPAIR AND ASSEMBLY

ALF-12080-E-02 All-Flo16
STEP 7
Remove the “Air Valve Spool” from
the main “Air-Valve Assembly”.
Note: The shorter piston is to be
on the plug side.
STEP 8
Using the pick, remove the “Lip
Seal (Air Valve)” from the main
“Air-Valve Assembly”.
STEP 9
Using the pick, remove the
second “Lip Seal (Air Valve)” from
the main “Air-Valve Assembly”.
AIR VALVE ASSEMBLY
To assemble the air valve, reverse the order of disassembly. During
assembly, ensure that the open side of the lip-seals are both facing
each other inward. Install the shuttle plate with the smooth/shinny side
toward the shuttle car. Lubrication of the air valve assembly, with a non-
synthetic lubricant, is recommended. Magna-Lube or Magna-Plate are
recommended for assembly lubrication (see detailed parts list for order-
ing information).
Note that if the lip-seals are installed incorrectly, they will be unable to
rotate. Insert the spool, the spool’s shorter piston is to be on the plug
side, ensure O-ring is enstalled, and then the air-valve end plug into
position.

ALF-12080-E-02 All-Flo17
PILOT VALVE REMOVAL
STEP 1
Using the screwdriver, remove
three “Phillips Flat-Head Mach
Screws” (#6-32 x 7/16) in order to
remove the “Retaining Plate”.
Repeat for other side of the pump.
STEP 2
Remove the diaphragm rod and
the pilot sleeve assembly from the
“Intermediate”.
STEP 3
Remove both “Lip Seals
(Diaphragm Rod)” and both “End
Spacers (Pilot Sleeve)” from the
pilot sleeve assembly. Remove
both “O-Rings (End Spacer)” from
both “End Spacers (Pilot Sleeve)”.
TOOLS NEEDED
1) One Screwdriver, Phillips #2
2) Two Wrenches, 7/16 Inch
WARNING Prior to servicing the pump, ensure that the air
and fluid lines are closed and disconnected. While wearing personal
protective equipment, flush, drain and process liquid from the
pump in a safe manner.
WARNING Maintenance must not be performed when a hazardous
atmosphere is present.
STEP 4
Remove three “Inner Spacers
(Pilot Sleeve)” and four “O-Rings
(Pilot Sleeve)” from the pilot
sleeve assembly.
STEP 6
Remove the “Pilot Sleeve” from
the disassembled “Diaphragm
Rod Assembly”.
REPAIR AND ASSEMBLY
STEP 5
Using two 7/16 inch wrenches,
disassemble the “Diaphragm Rod
Assembly” into its two parts.
Note they are installed with thread
locker.

ALF-12080-E-02 All-Flo18
PILOT VALVE ASSEMBLY
To assemble the pilot valve, reverse the order of disassembly. Should
process fluid have contact with the pilot valve O-rings, they should be
replaced as swelling may occur and cause irregular operation. During
assembly, ensure that the open side of the lip-seals are facing outward.
Lubrication of the pilot sleeve assembly, with a non-synthetic lubricant,
is recommended in order to facilitate re-assembly into the intermediate.
Magna-Lube or Magna-Plate are recommended for assembly lubrication
(see detailed parts list for ordering information).
TORQUE SPECIFICATION CHART
RECOMMENDED TORQUE SPECIFICATIONS
1” Pumps Wrench Size
Manifold Bolts 90 in-lbs (10.2 N-m) 1/2”
Chamber Bolts 60 in-lbs (6.8 N-m 1/2”
Air Valve Bolts 40 in-lbs (4.5 N-m) 7/16”
Diaphragm plate 90 in-lbs (10.2 N-m) 3/4”
Diaphragm plate (PTFE) 90 in-lbs (10.2 N-m) 3/4”

ALF-12080-E-02 All-Flo19
EXPLODED VIEW & PARTS LIST
A101-*A*-****-*** STAINLESS STEEL
SECTION 8

ALF-12080-E-02 All-Flo20
PARTS LIST - STAINLESS STEEL
A101-*A*-****-***
ITEM DESCRIPTION QTY PUMP MODEL PART NO. MATERIAL
10 DISCHARGE MANIFOLD 1 A101-NA3-****-*** 11330-26-NPT Stainless Steel
A101-BA3-****-*** 11330-26-BSPT Stainless Steel
20 BALL 4 A101-*A*-*V**-*** 11008-13 † FKM
A101-*A*-*E**-*** 11008-15 † EPDM
A101-*A*-*G**-*** 11008-19 † BunalastTM
A101-*A*-*N**-*** 11008-21 † Buna-N
A101-*A*-*S**-*** 11008-23 † Santoprene®
A101-*A*-*3**-*** 11008-26 † Stainless Steel
A101-*A*-*T**-*** 11008-45 † PTFE
30 VALVE SEAT 4 A101-*A*-**A*-*** 10927-20 † Aluminum
A101-*A*-**3*-*** 10927-26 † Stainless Steel
A101-*A*-**P*-*** 10927-39 † Polyproplyene
A101-*A*-**Y*-*** 10927-42 † Nylon
40 ORING VALVE SEAT 4 A101-*A*-***N-*** 11947-11 † Nitrile
A101-*A*-***V-*** 11947-13 † FKM
A101-*A*-***E-*** 11947-15 † EPDM
A101-*A*-***T-*** 11947-17 † PTFE
50 OUTER CHAMBER 2 A101-*A3-****-*** 10730-26 Stainless Steel
61 INTERMEDIATE 1 A101-*A*-****-*** 11526-20 Aluminum
70 & 90 DIAPHRAGM ROD ASSEMBLY 1 ALL MODELS 35005-00 Stainless Steel
80 PILOT SLEEVE 1 ALL MODELS 10105-31 ΔAcetel
100 INNER SPACER PILOT SLEEVE 3 ALL MODELS 10203-40 ΔPolyproplyene
110 ORING PILOT SLEEVE 4 ALL MODELS 11920-16 ΔUrethane
120 END SPACER PILOT SLEEVE 2 ALL MODELS 10209-40 ΔPolyproplyene
130 ORING END SPACER 2 ALL MODELS 11923-16 ΔUrethane
140 LIP SEAL DIAPHRAGM ROD 2 ALL MODELS 12000-76 ΔNitrile
150 RETAINING PLATE 2 ALL MODELS 12718-54 Nylon
160 BUMPER 2 ALL MODELS 12325-16 Urethane
170 INNER DIAPHRAGM PLATE 2 ALL MODELS 11104-25 Plated Steel
181 DIAPHRAGM 2A101-*A*-N***-*** 10612-11 † Buna-N
A101-*A*-V***-*** 10612-13 † FKM
A101-*A*-E***-*** 10612-15 † EPDM
A101-*A*-G***-*** 10612-19 † BunalastTM
A101-*A*-S***-*** 10612-23 † Santoprene®
182 DIAPHRAGM, BACKUP (PTFE ONLY) 2 A101-*A*-T***-*** 10613-23 † Santoprene®
190 PTFE OVERLAY (PTFE ONLY) 2 A101-*A*-T***-*** 11409-59 † PTFE
200&210 OUTER DIAPHRAGM PLATE WITH STUD 2 A101-*A3-****-*** 11220-26 Stainless Steel
220 SUCTION MANIFOLD 1 A101-NA3-****-*** 11331-26-NPT Stainless Steel
A101-BA3-****-*** 11331-26-BSPT Stainless Steel
230 AIR VALVE GASKET 1 ALL MODELS 12125-19 ‡Nitrile
240 SHUTTLE PLATE 1 ALL MODELS 10451-77 ‡Ceramic
250 SHUTTLE 1 ALL MODELS 10431-32 ‡Special
260 AIR VALVE BODY 1 ALL MODELS 11619-20 ‡Aluminum
270 AIR VALVE SPOOL 1 ALL MODELS 10482-31 ‡Acetel
280 LIP SEAL AIR VALVE 2 ALL MODELS 12003-76 ‡Nitrile
290 ORING AIR VALVE END PLUG 1 ALL MODELS 11913-11 ‡Nitrile