Dover PSG ALL-FLO A075 Manual

IOM
INSTALLATION OPERATION
& MAINTENANCE
A075
PLASTIC 3/4 INCH
AIR-OPERATED DOUBLE-DIAPHRAGM PUMP

ALF-11040-E-02 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
RUBBER, TPE AND PTFE DIAPHRAGMS...........................7
SECTION 6 INSTALLATION, TROUBLESHOOTING AND MAINTENANCE
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
PILOT VALVE REMOVAL...................................................16-17
TORQUE SPECIFICATIONS.......................................................17
SECTION 8 EXPLODED VIEWS AND PARTS LISTS 18-20
SECTION 9 ELASTOMERS AND REPAIR KITS 21
SECTION 10 WARRANTY AND REGISTRATION 22

ALF-11040-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)
Geolast®: 10°F to 180°F (-12°C to 82°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 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-11040-E-02 All-Flo4
MODEL DESIGNATION MATRIX-BOLTED 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 7 5 -1 2 3- 4 5 6 7 - 8 9 10
FLUID CONNECTION TYPE
N = NPT
B = BSPT
AIR SECTION
P = Polypropylene Intermediate-Pneumatic Shift
LIQUID SECTION
K = PVDF
P = Polypropylene
Y = Conductive Nylon
DIAPHRAGMS
G = Geolast®
S = Santoprene®
T = PTFE with Santoprene®Backup
V = FKM
VALVE/BALL
G = Geolast®
S = Santoprene®
T = PTFE
V = FKM
3 = Stainless Steel
VALVE SEAT
P = Polypropylene
K = PVDF
3 = Stainless Steel
O-RINGS
E = EPDM
N = Buna-N
T = PTFE
V = FKM
PORTING
S = Default (Suction Right/ Discharge Right)
T = Suction Right / Discharge Left
X = Suction Left / Discharge Right
Y = Suction Left / Discharge Left
A = Suction Center Front / Discharge Center Front
B = Suction Center Front / Discharge Center Rear
C = Suction Center Front / Discharge Top
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
H = Suction Center Rear / Discharge Top
I = Suction Center Rear / Discharge Right
J = Suction Center Rear / Discharge Left
K = Suction Bottom / Discharge Center Front
L = Suction Bottom / Discharge Center Rear
M = Suction Bottom / Discharge Top
N = Suction Bottom / Discharge Right
O = Suction Bottom / Discharge Left
P = Suction Right / Discharge Center Front
Q = Suction Right / Discharge Center Rear
R = Suction Right / Discharge Top
U = Suction Left / Discharge Center Front
V = Suction Left / Discharge Center Rear
W = Suction Left / Discharge Top
4 = All Ports Open (Standard ports will be
left un-plugged)
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, DIN 43650B Connector
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, DIN 43650B Connector
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, DIN 43650B Connector
7 = Solenoid Adaptor Valve 220/50 Volt AC, 240/60
Volt AC, 125 Volt DC Explosion Proof
8 = Solenoid Adaptor Valve 24 Volt DC, DIN
43650B Connector
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
AIR END REPAIR KIT
Air end repair kit contains pilot sleeve
assembly and main air valve.
DIAPHRAGM
VALVE/BALL
VALVE SEAT
O-RINGS
AWE-075-4567-P
PRODUCT
SERIES
WET END
REPAIR KIT
PUMP SIZE
MATERIAL
AAK-075-P
PRODUCT
SERIES
PUMP SIZE
AIR END
REPAIR KIT
3
4
5
MATERIAL

ALF-11040-E-02 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.
HOW AN AIR OPERATED DOUBLE
DIAPHRAGM PUMP WORKS
SECTION 3