Dover PSG All-Flo A025-SQ User manual

IOM
INSTALLATION OPERATION
& MAINTENANCE
A025-SQ
PLASTIC 1/4 INCH
AIR-OPERATED DOUBLE-DIAPHRAGM PUMP

ALF-13210-E-01 All-Flo2
TABLE OF
CONTENTS
SECTION 1 WARNINGS, DANGERS AND CAUTIONS 3
SECTION 2 MODEL DESIGNATION MATRIX 4
SECTION 3 PRINCIPLES OF OPERATION 5
SECTION 4 DIMENSIONAL DRAWINGS 6
SECTION 5 PERFORMANCE CURVES
TPE AND PTFE DIAPHRAGMS................................................7
SECTION 6 INSTALLATION,
INSTALLATION ...................................................................................... 8-9
TROUBLESHOOTING ..................................................................10
OPERATION......................................................................................11
MAINTENANCE .............................................................................11
SECTION 7 REPAIR AND ASSEMBLY
PUMP WET END REMOVAL............................................ 12-13
AIR VALVE REMOVAL ........................................................ 14-15
TORQUE SPECIFICATIONS.......................................................15
SECTION 8 EXPLODED VIEWS AND PARTS LISTS 16-18
SECTION 9 ELASTOMERS AND REPAIR KITS 19
SECTION 10 WARRANTY AND REGISTRATION 20

ALF-13210-E-01 All-Flo3
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.
WARNING Pump, valves and all containers must
be properly grounded prior to handling flammable fluids
and/or whenever static electricity is a hazard.
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 The TX marking refers to the maximum
surface temperature depending not on the equipment
itself, but mainly on operating conditions. In this case,
the maximum surface temperature depends upon the
temperature of the process fluids.
CAUTION The temperature of the process fluid
and air input must be no more than 36°F (20C) less of 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)
Geolast®: 10°F to 180°F (-12°C to 82°C)
EPDM: -40°F to 280°F (-40°C to 138°C)
Santoprene®: -40°F to 225°F (-40°C to 107°C)
FKM: -40°F to 350°F (-40°C to 177°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)
PVDF: 0°F to 250°F (-18°C to 121°C)
Nylon: 0°F to 200°F (-18°C to 93°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 Do not lubricate air supply.
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.
CAUTION Do not connect a compressed air source
to the exhaust port of the pump.
WARNING Use only with liquid process fluid.
WARNING Maintenance must not be performed
when a hazardous atmosphere is present.
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 Ensure all wetted components are
chemically compatible with the process fluid and the
cleaning fluid.
CAUTION Ensure pump is thoroughly cleaned and
flushed prior to installation into a process line.
CAUTION Always wear Personal Protective
Equipment (PPE) when operating pump.
CAUTION Close and disconnect all
compressed air and bleed all air from the pump
prior to service. Remove all process fluid in a safe manner
prior to service.
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.
SECTION 1

ALF-13210-E-01 All-Flo4
MODEL DESIGNATION MATRIX & REPAIR KITS-BOX PLASTIC
SECTION 2
PRODUCT SERIES
FLUID CONNECTION TYPE
LIQUID SECTION
DIAPHRAGM
VALVE/BALL
VALVE SEAT
O-RINGS
SPECIAL (OTHER)
SPECIAL (PORTING)
AIR SECTION
SPECIAL (HARDWARE,
MUFFLER)
A 0 2 5 -1 2 3- 4 5 6 7 - 8 9 10
FLUID CONNECTION TYPE
S = NPS (NPT/BSP)
2 = Dual Suction / Dual Discharge (NPT/BSP)
AIR SECTION
Q = Polypropylene Intermediate-Mechanical Shift
LIQUID SECTION
K = PVDF
P = Polypropylene
Y = Conductive Nylon
DIAPHRAGMS
G = Geolast®
S = Santoprene®
T = PTFE
VALVE/BALL
T = PTFE
VALVE SEAT
K = PVDF
P = Polypropylene
Y = Conductive Nylon
O-RINGS
E = EPDM
N = Buna-N
T = PTFE
V = FKM
PORTING
Y = Default (Suction Left / Discharge Left)
S = Suction Right/ Discharge Right
SPECIAL OPTION (HARDWARE,
MUFFLER, LUG)
7 = Stainless Steel Hardware, Standard Muffler
8 = Stainless Steel Hardware, Premium Muffler
B = PTFE Coated Stainless Steel Hardware,
Standard Muffler
C = PTFE Coated Stainless Steel Hardware,
Premium Muffler
F = Stainless Steel Hardware, Standard Muffler,
Grounding Lug Installed
G = Stainless Steel Hardware, Premium Muffler,
Grounding Lug Installed
H = PTFE Coated Stainless Steel Hardware,
Standard Muffler, Grounding Lug Installed
I = PTFE Coated Stainless Steel Hardware,
Premium Muffler, Grounding Lug Installed
Note: Equipment must be grounded to achieve
ATEX rating it is recommended to configure
the pump with a grounding lug option for
ATEX applications.
SPECIAL OPTION (OTHER)
0 = Standard
1 = Cycle Counter Valve
2 = Solenoid Adaptor Valve 110/50 Volt AC, 120/60
Volt AC
3 = Solenoid Adaptor Valve 110/50 Volt AC, 120/60
Volt AC Explosion Proof
4 = Solenoid Adaptor Valve 220/50 Volt AC, 240/60
Volt AC, 12 Volt DC
5 = Solenoid Adaptor Valve 220/50 Volt AC, 240/60
Volt AC, 12 Volt DC Explosion Proof
6 = Solenoid Adaptor Valve 220/50 Volt AC, 240/60
Volt AC, 125 Volt DC
7 = Solenoid Adaptor Valve 220/50 Volt AC, 240/60
Volt AC, 125 Volt DC Explosion Proof
8 = Solenoid Adaptor Valve 24 Volt DC
9 = Solenoid Adaptor Valve 24 Volt DC, Explosion
Proof
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
Bold indicates recommended options
DIAPHRAGM
VALVE/BALL
VALVE SEAT
O-RINGS
AWE-025-4567
PRODUCT
SERIES
WET END
REPAIR KIT
PUMP SIZE
3
4
5
MATERIAL
-P–Q

ALF-13210-E-01 All-Flo5
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.
Note: The graphics show a typical diaphragm pump operation. This box
pump model uses cone valves and a mechanical shift air valve to produce
a similar cycle for these pump models.
HOW AN AIR OPERATED DOUBLE
DIAPHRAGM PUMP WORKS
SECTION 3

ALF-13210-E-01 All-Flo6
1/4” PUMP DIMENSIONS
BOX PLASTIC
SECTION 4

ALF-13210-E-01 All-Flo7
PERFORMANCE CURVES
PERFORMANCE CURVE Performance Specifications
Max. Flow: 4.3 gpm (16.3 lpm)
Max. Air Pressure: 100 psi (6.8 bar)
Max. Solids: 1/16” (1.6 mm)
Max. Suction Lift Dry: 10 ft-H2O (3.0 m-H2O)
Max. Suction Lift Wet: 26 ft-H2O (7.9 m-H2O)
Weight Polypropylene: 5 lbs (2.3 kg)
Weight PVDF & Conductive Nylon: 7 lbs (3.2 kg)
Air Inlet: 1/4” FNPT
Liquid Inlet FNPT/FBSPT: ¼”
Liquid Outlet FNPT/FBSPT: ¼”
Height: 5.34” (135.64 mm)
Width: 7.50” (190.5 mm)
Depth: 5.5” (139.70 mm)
5
SECTION
*Flow rates indicated on the chart(s) 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.
AIR CONSUMPTION (SCFM)

ALF-13210-E-01 All-Flo8
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-13210-E-01 All-Flo9
SUGGESTED INSTALLATION
This illustration is a generic
representation of an air operated
double-diaphragm pump.

ALF-13210-E-01 All-Flo10
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-13210-E-01 All-Flo11
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-13210-E-01 All-Flo12
SECTION 7
REPAIR AND ASSEMBLY
PUMP WET END REMOVAL
TOOLS NEEDED
1) Two Wrenches, 7/16 Inch
2) One Screwdriver, Straight Blade
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 1
Using the 7/16 inch wrenches
remove six “Hex-Head Cap
Screws”, six “Tension Washers”,
twelve “Washers” and six “Nuts”
from the “Manifolds”. Note the
tension washer cup face should
face towards the pump.
STEP 2
Remove the “Left Chamber”
and “Right Chamber” from the
“Intermediate”. Note the “Left
Chamber” has the long standoffs.
STEP 3
Remove the “O-Ring Retainers”
and the “O-Rings” from the “Right
Chamber”.
STEP 4
Using the straight blade
screwdriver (or 1/4 socket)
remove ten “Screws” from the
“Right Manifold”. Note the center
two “Screws” are longer than the
outer six.
STEP 5
Remove the “Right Chamber”
from the “Right Manifold”. Note
the “Right Manifold” does not have
any open ports.
STEP 6
Remove the “Manifold Gaskets”
from the “Right Chamber”.

ALF-13210-E-01 All-Flo13
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 15). Inverting one of the diaphragms during reassembly will
facilitate ease of assembly.
STEP 7
Repeat STEP 4 above for the “Left
Manifold”, then remove the “Left
Chamber” from the “Left Manifold”.
Note the “Left Manifold” is the one
which contains the open ports.
STEP 8
Remove the “Manifold Gaskets”
from the “Left Chamber”. Note
the “Left Chamber” has the long
standoffs.
STEP 9
Using two 3/4 Inch wrenches,
remove “Outer Diaphragm
Plate”, “Diaphragm” and “Inner
Diaphragm Plate” from one side of
the pump. Note PTFE diaphragms
also contain an O-Ring on the
“Intermediate” side.
STEP 10
Placing the 3/4 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” and “Inner
Diaphragm Plate” from the other side of the pump. Note PTFE diaphragms also contain an O-Ring on the
“Intermediate” side.

ALF-13210-E-01 All-Flo14
AIR VALVE REMOVAL
TOOLS NEEDED
1) Two Wrenches, 7/16 Inch
2) One Screwdriver, Phillips #2
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.
REPAIR AND ASSEMBLY
STEP 1
Using the pair of pliers, work the
“Air Inlet Cap” loose from the
“Intermediate”.
STEP 2
Using the pair of pliers, remove
the “Air Inlet Cap” from the
“Intermediate”. Ensure the
“O-Ring” is installed when
reassembling.
STEP 3
Set aside the “Air Inlet Cap” and
“O-Ring” from the “Intermediate”.
STEP 4
Using the screwdriver, remove
two “Phillips Pan-Head Screws”
in order to remove the “Retaining
Plate”. Repeat for other side of
the pump.
STEP 5
Using two 7/16 inch wrenches,
disassemble the “Diaphragm Rod
Assembly” into its two parts. Note
they are installed with thread
locker.
STEP 6
Remove the “Rods” and “Lip
Seals” from the “Intermediate”.
Remove the “Spring Clip
Assembly” and “Shuttle” thru the
“Air Inlet Cap”

ALF-13210-E-01 All-Flo15
STEP 7
Note the assebly configuration
of the “Rod” and “Spring Clip”.
The “Lip Seals” must face inward
toward the “Intermediate” for
them to properly seal.
STEP 8
Note the orientation of the
“Shuttle” pocket. The areas in the
“Intermediate” which accept the
“Spring” coils should be greased
before reassembly.
STEP 9
Note on reassembly the “Shuttle”
is installed in the “Intermediate”
pocket and the “Spring” must ride
in the “Shuttle” yolk. The “Rod”
must then be threaded thru the
“Spring Clip” 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. 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
ordering information).
Note that if the lip-seals are installed incorrectly, they will be unable
to rotate.
Apply
pressure with
finger while
inserting and
assembling
the
diaphragm
rods.
TORQUE SPECIFICATION CHART
RECOMMENDED TORQUE SPECIFICATIONS
1/4” Pumps
Manifold Screws 12 in-lbs (1.36 N-m)
Chamber Bolts 5 ft-lbs (6.8 N-m)
Diaphragm Plates 40 in-lbs (4.5 N-m)
Note: When using pumps built with PTFE O-Rings, always replace with new PTFE O-Rings, since the original
O-Rings may not reseal the pump.

ALF-13210-E-01 All-Flo16
EXPLODED VIEW & PARTS LIST
A025-SQ*-****-*** BOX PLASTIC
SECTION 8

ALF-13210-E-01 All-Flo17
PARTS LIST - BOX PLASTIC
A025-SQ*-****-***
ITEM DESCRIPTION QTY PUMP MODEL PART NO. MATERIAL
1 LEFT MANIFOLD 1 A025-SQP-****-*** 10503-40 Polypropylene
A025-SQY-****-*** 10503-46 Conductive Nylon
A025-SQK-****-*** 10503-56 PVDF
2 MANIFOLD, GASKET 4 A025-SQ*-***N-*** 11936-11 Nitrile
A025-SQ*-***V-*** 11936-13 FKM
A025-SQ*-***E-*** 11936-15 EPDM
A025-SQ*-***T-*** 12111-59 PTFE
3 VALVE DISC 4 ALL MODELS 11006-59 PTFE
(Included in item 6 & 18. Cannot be ordered separately.)
4 O-RING RETAINER 2 ALL MODELS 12711-60 Polypropylene
5 SCREW (#8 X 1-1/4”) 16 ALL MODELS (NON-PTFE COATED) 12524-26 Stainless Steel
5A SCREW (#8 X 1”) 4 ALL MODELS (NON-PTFE COATED) 12525-26 Stainless Steel
6 LEFT CHAMBER 1 A025-SQP-****-*** 10714-40 Polypropylene
A025-SQY-****-*** 10714-46 Conductive Nylon
A025-SQK-****-*** 10714-56 PVDF
7 OUTER DIAPHRAGM PLATE 2 A025-SQP-****-*** 11205-40 Polypropylene
A025-SQY-****-*** 11205-46 Conductive Nylon
A025-SQK-****-*** 11205-56 PVDF
8 O-RING 2 A025-SQ*-T***-*** 10606-23 Santoprene®
(Diaphragm, PTFE ONLY)
9 DIAPHRAGM 2 A025-SQ*-G***-*** 10604-19 Geolast®
A025-SQ*-S***-*** 10604-23 Santoprene®
A025-SQ*-T***-*** 10604-59 PTFE
10 INNER DIAPHRAGM PLATE 2 ALL MODELS 11105-25 Plated Steel
11 DIAPHRAGM ROD (Short) 1 ALL MODELS * Stainless Steel
12 SCREW (#6 X 1/2”) 4 ALL MODELS 12510-26 Stainless Steel
13 SEAL RETAINER 2 ALL MODELS 12710-60 Polypropylene
14 LIP SEAL 2 ALL MODELS 12000-76 Nitrile
15 INTERMEDIATE 1 ALL MODELS 11508-60 Polypropylene
16 DIAPHRAGM ROD (Long) 1 ALL MODELS * Stainless Steel
17 O-RING (Manifold Tube) 2 A025-SQ*-***N-*** 11928-11 Nitrile
A025-SQ*-***V-*** 11928-13 FKM
A025-SQ*-***E-*** 11928-15 EPDM
A025-SQ*-***T-*** 11928-17 PTFE
18 RIGHT CHAMBER 1 A025-SQP-****-*** 10715-40 Polypropylene
A025-SQY-****-*** 10715-46 Conductive Nylon
A025-SQK-****-*** 10715-56 PVDF
19 RIGHT MANIFOLD 1 A025-SQP-****-*** 10513-40 Polypropylene
A025-SQY-****-*** 10513-46 Conductive Nylon
A025-SQK-****-*** 10715-56 PVDF
20 MUFFLER CAP 1 ALL MODELS 13108-60 Polypropylene
21 O-RING (Caps) 2 ALL MODELS 11909-11 Nitrile
22 SHUTTLE 1 ALL MODELS 10411-00 Special
23 SPRING CLIP ASSY 1 ALL MODELS 51000-00 Various
24 MUFFLER 1 ALL MODELS 13003-00 Special
25 AIR INLET CAP 1 ALL MODELS 13109-60 Polypropylene

ALF-13210-E-01 All-Flo18
ITEM DESCRIPTION QTY PUMP MODEL PART NO. MATERIAL
26 FLAT WASHER (1/4”) 12 ALL MODELS (NON-PTFE COATED) 12300-26 Stainless Steel
27 CAP SCREW (1/4” x 7-5/8”) 6 ALL MODELS (NON-PTFE COATED) 12517-26 Stainless Steel
28 HEX NUT (1/4” - 20) 6 ALL MODELS (NON-PTFE COATED) 12600-26 Stainless Steel
29 WASHER, TENSION (1/4”) 6 ALL MODELS (NON-PTFE COATED) 12305-26 Stainless Steel
* Any Character
* NOTE: DIAPHRAGM ROD CAN ONLY BE PURCHSED AS AN ASSEMBLY.
DIAPHRAGM ROD ASSEMBLY 1 ALL MODELS 39000-00 Stainless Steel
Items 11 & 16
PARTS LIST - BOX PLASTIC
A025-SQ*-****-***

ALF-13210-E-01 All-Flo19
SECTION
9
ELASTOMERS & REPAIR KITS
WETTED ELASTOMERS
II 2 GD c TX
Warning: The TX marking refers to the maximum surface temperature depending not on the equipment itself, but mainly
on operating conditions. In this case, the maximum surface temperature depends upon the temperature of the process
fluids.
FKM
is an elastomer with good corrosion resistance to a
wide variety of chemicals. Temperature range -40°F
to 350°F (-40°C to 177°C).
Most of the above elastomers are available in FDA
approved formulations.
BUNA-N (NITRILE)
is a general purpose elastomer used with water and
many oils. Temperature range 10°F to 180°F (-12°C
to 82°C).
GEOLAST®
is an injection molded thermoplastic material with
characteristics similar to Nitrile. Has excellent
abrasion resistance. Temperature range 10°F to 180°F
(-12°C to 82°C).
EPDM
is a general purpose elastomer with good resistance
to many acids and bases. Temperature range -40°F
to 280°F (-40°C to 138°C).
SANTOPRENE®
is an injection molded material with characteristics
similar to EPDM. Has excellent abrasion resistance.
Temperature range -40°F to 225°F (-40°C to 107°C).
PTFE (POLYTETRAFLUOROETHYLENE)
is a thermoplastic polymer that is inert to most
chemicals. Temperature range 40°F to 220°F (4°C to
104°C).
Geolast®is a registered trademark of ExxonMobil Chemical Co.
Santoprene®is a registered trademark of ExxonMobil Chemical Co.
Hytrel®is a registered trademark of DuPont Performance Elastomers L.L.C.
Magnalube®is a registered trademark of Carleton-Stuart Corp.

ALF-13210-E-01 All-Flo20
WARRANTY. All All-Flo products shall be covered by the standard All-Flo Limited Warranty in effect at the time
of shipment. This warranty (which may be modified by All-Flo at any time) provides:
MATERIALS SOLD ARE WARRANTED TO THE ORIGINAL USER AGAINST DEFECTS IN WORKMANSHIP OR
MATERIALS UNDER NORMAL USE (RENTAL USE EXCLUDED) FOR FIVE YEARS AFTER PURCHASE DATE. ANY
PUMP WHICH IS DETERMINED TO BE DEFECTIVE IN MATERIAL AND WORKMANSHIP AND RETURNED TO
ALL-FLO, SHIPPING COSTS PREPAID, WILL BE REPAIRED OR REPLACED AT ALL-FLO’S OPTION. CUSTOMER
SHALL NOTIFY ALL-FLO IN WRITING WITHIN 30 DAYS OF ANY CLAIMED DEFECTS. NO MATERIALS CAN BE
RETURNED WITHOUT THE PRIOR CONSENT OF ALL-FLO, AND IF APPROVED SHALL BE RETURNED TO
ALL-FLO FREIGHT PREPAID. ALL-FLO’S LIABILITY FOR ANY BREACH OF THIS WARRANTY SHALL BE
LIMITED TO EITHER REPLACEMENT OF THE MATERIALS OR, AT ALL-FLO’S SOLE OPTION, THE REFUND OF
THE PURCHASE PRICE. ALL-FLO SHALL NOT BE HELD LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES CAUSED BY BREACH OF THIS WARRANTY. THIS EXCLUSION APPLIES WHETHER SUCH DAMAGES
WERE SOUGHT BASED ON BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, STRICT LIABILITY
IN TORT, OR ANY OTHER LEGAL THEORY. FURTHER, ALL-FLO SHALL NOT BE LIABLE FOR LOSSES, DELAYS,
LABOR COSTS, OR ANY OTHER COST OR EXPENSE DIRECTLY OR INDIRECTLY ARISING FROM THE USE OF
MATERIALS. ALL-FLO’S LIABILITY IS EXPRESSLY LIMITED TO THE REPLACEMENT OR REPAIR OF DEFECTIVE
GOODS, OR THE TOTAL VALUE OF SUCH GOODS. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,
WHETHER EXPRESS, IMPLIED, OR ORAL INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY, ANY
IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, AND ANY IMPLIED WARRANTIES
OTHERWISE ARISING FROM A COURSE OF DEALING OR TRADE. All-Flo will not, in ANY event, be liable for any
loss of profit, interruption of business or any other special, consequential or incidental damages suffered or
sustained by Customer. All-Flo’s total maximum liability to the customer in respect of sale of materials or
services rendered by All-Flo is limited to the total monies received by All-Flo from the customer for the
particular materials described in Customer’s order.
All-Flo does not warrant any part or component that it does not manufacture, but will assign to the original
end-user purchaser of any warranty received by it from the manufacturer, to extent such pass through is
permitted by the manufacturer.
REGISTRATION FORM
Pump Model _________________________________ Pump Serial Number __________________________
Company Name _____________________________________________________________________________
Name ______________________________________ Email _______________________________________
Phone # ____________________________ City _____________________ State ______ Zip ___________
Qty of Pumps ________________________________ Fluid Pumping _______________________________
How did you hear about us? Existing All-Flo user,
Web, Distributor, Magazine…
______________________________________________________
www.all-flo.com/registration-form.html
WARRANTY AND REGISTRATION
Scan QR code and
complete form
on mobile phone
or visit
10
SECTION
MAIL TO: All-Flo | Attn: Product Registration
22069 Van Buren Street, Grand Terrace, CA 92313-5651