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6661AX-X-C
OPERATOR’S MANUAL
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
RELEASED:
REVISED:
(REV. S)
1” DIAPHRAGM PUMP
9-11-89
1-10-03
1:1 RATIO (NON-METALLIC)
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
SERVICE KITS
Refer to the Model Description Chart to match the pump material options.
637118ĆC for Air Section repair (see page 6).
637161ĆXXĆC for Fluid Section repair (see page 4).
PUMP DATA
Models . . . . . . See Model Description Chart for ĆXXX".
Pump Type . . . NonĆMetallic, Air Operated, Double Diaphragm
Material . . . . . . See Model Description Chart.
Weight 6661A3Ć, 1AFĆ, 1AJĆ, 1ALĆ . . . 20.25 lbs (9.19 kgs)
6661APĆ, 1ARĆ, 1ASĆ, 1ATĆ . . 20.25 lbs (9.19 kgs)
6661A4Ć, 1AGĆ, 1AKĆ, 1ANĆ . . 28.5 lbs (12.93 kgs)
6661B3Ć, 1BFĆ, 1BJĆ, 1BLĆ . . . 28.8 lbs (13.06 kgs)
6661BPĆ, 1BRĆ, 1BSĆ, 1BTĆ . . 28.8 lbs (13.06 kgs)
6661B4Ć, 1BGĆ, 1BKĆ, 1BNĆ . . 37 lbs (16.78 kgs)
Maximum Air Inlet Pressure . . . . . . . . 120 p.s.i. (8.3 bar)
Maximum Material Inlet Pressure . . . . 10 p.s.i. (0.69 bar)
Maximum Outlet Pressure . . . . . . . . . 120 p.s.i. (8.3 bar)
Maximum Flow Rate (flooded inlet) . . . . 47 g.p.m. (177.9 l.p.m.)
Displacement / Cycle @ 100 p.s.i.g. . . 0.17 gal. (0.64 lit.)
Maximum Particle Size (semiĆsolids) . . . 1/8" dia. (3.2 mm)
Maximum Temperature Limits
Polypropylene . . . . . 35_ to 150_ F (2_ to 66_ C)
PVDF (Kynar) . . . . . 10_ to 200_ F (Ć12_ to 93_ C)
Dimensional Data . . . . . . . . . . . . . . . see page 8
Noise Level @ 70 p.s.i. Ć 60 c.p.m.¬ . . 64.5 db (A)­
¬ Tested with 93110 muffler installed.
­ The pump sound pressure levels published here have been updated to an Equivalent
Continuous Sound Level (LAeq) to meet the intent of ANSI S1.13Ć1971, CAGIĆPNEUĆ
ROP S5.1 using four microphone locations.
NOTICE: All possible options are shown in the chart, however, certain
combinations may not be recommended, consult a representative or the
factory if you have questions concerning availability.
GENERAL DESCRIPTION
The ARO Diaphragm Pump offers high volume delivery even at low air
pressure and a broad range of material compatibility options available.
Refer to the model and option chart. ARO pumps feature stall resistant
design, modular air motor / fluid sections.
Air operated double diaphragm pumps utilize a pressure differential in
the air chambers to alternately create suction and positive fluid pressure
in the fluid chambers, ball checks insure a positive flow of fluid.
Pump cycling will begin as air pressure is applied and it will continue to
pump and keep up with the demand. It will build and maintain line presĆ
sure and will stop cycling once maximum line pressure is reached (disĆ
pensing device closed) and will resume pumping as needed.
INGERSOLL-RAND COMPANY
P.O. BOX 151 D ONE ARO CENTER D BRYAN, OHIO 43506Ć0151
& (419) 636-4242 D FAX (419) 633-1674
E2003 D PRINTED IN U.S.A.
6661XFĆXXXĆC
6661XGĆXXXĆC
6661XRĆXXXĆC
6661XJĆXXXĆC
6661XKĆXXXĆC
6661XLĆXXXĆC
6661XNĆXXXĆC
6661XSĆXXXĆC
6661XTĆXXXĆC
6661X3ĆXXXĆC
6661X4ĆXXXĆC
6661XPĆXXXĆC
Figure 1
MODEL DESCRIPTION CHART
6661 X X Ć X X X Ć C
CENTER BODY MATERIAL
A Ć Aluminum
B Ć Cast Iron
FLUID CAP / MANIFOLD MATERIAL
3 Ć Colorless Polypropylene flange (3Ćpiece manifold)
4 Ć PVDF (KynarR) flange (3Ćpiece manifold)
F Ć Colorless Polypropylene flange (one piece manifold)
G Ć PVDF (Kynar) flange (one piece manifold)
J Ć Colorless Polypropylene, N.P.T. (one piece manifold)
K Ć PVDF (Kynar), N.P.T. (one piece manifold)
L Ć Colorless Polypropylene, B.S.P. (one piece manifold)
N Ć PVDF (Kynar), B.S.P. (one piece manifold)
P Ć Gray Polypropylene flange (3Ćpiece manifold)
R Ć Gray Polypropylene flange (one piece manifold)
S Ć Gray Polypropylene, N.P.T. (one piece manifold)
T Ć Gray Polypropylene, B.S.P. (one piece manifold)
SEAT MATERIAL
2 Ć 316 Stainless Steel
3 Ć Polypropylene
4 Ć PVDF (Kynar)
8 Ć Hard 440 Stainless Steel
BALL MATERIAL
1 Ć Neoprene
8 Ć Polyurethane
2 Ć Nitrile
A Ć 316 Stainless Steel
3 Ć VitonR
E Ć SantopreneR
4 Ć T.F.E. (TeflonR)
M Ć Medical Grade Santoprene
5 Ć E.P.R.
DIAPHRAGM MATERIAL
1 Ć Neoprene
3 Ć Viton
9 Ć HytrelR
2 Ć Nitrile
5 Ć E.P.R.
B Ć Santoprene
4 Ć T.F.E. (Teflon) / Santoprene
M Ć Medical Grade Santoprene
FLUID SECTION SERVICE KIT SELECTION
6661XX Ć X X X Ć C
EXAMPLE: MODEL # 6661A3Ć311ĆC
637161 Ć X X Ć C
FLUID SECTION SERVICE KIT # 637161Ć11ĆC
BALL
DIAPHRAGM
OPERATING AND SAFETY PRECAUTIONS
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
READ, UNDERSTAND AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
S Check pump motor section, fluid caps, manifolds and all
HAZARDOUS MATERIALS
EXCESSIVE AIR PRESSURE
wetted parts to assure compatibility before using with solvents
HAZARDOUS
PRESSURE
STATIC SPARK
of this type.
WARNING HAZARDOUS MATERIALS. Can cause serious inĆ
jury or property damage. Do not attempt to return a pump to the
WARNING EXCESSIVE AIR PRESSURE. Can cause pump
factory or service center that contains hazardous material.
damage, personal injury or property damage.
Safe handling practices must comply with local and national
Be sure material hoses and other components are able to withĆ
laws and safety code requirements.
stand fluid pressures developed by this pump. Check all hoses
S Obtain Material Safety Data Sheets on all materials from the
for damage or wear. Be certain dispensing device is clean and
supplier for proper handling instructions.
in proper working condition.
CAUTION Verify the chemical compatibility of the pump
Do not exceed the maximum inlet air pressure as stated on the
pump model plate.
wetted parts and the substance being pumped, flushed or reĆ
circulated. Chemical compatibility may change with temperaĆ
WARNING STATIC SPARK. Can cause explosion resulting in
ture and concentration of the chemical(s) within the
severe injury or death. Ground pump and pumping system.
substances being pumped, flushed or circulated. For specific
Sparks can ignite flammable material and vapors.
fluid compatibility, consult the chemical manufacturer.
The pumping system and object being sprayed must be
CAUTION Maximum temperatures are based on mechaniĆ
grounded when it is pumping, flushing, recirculating or sprayĆ
ing flammable materials such as paints, solvents, lacquers,
cal stress only. Certain chemicals will significantly reduce
etc. or used in a location where surrounding atmosphere is
maximum safe operating temperature. Consult the chemical
conducive to spontaneous combustion. Ground the dispensĆ
manufacturer for chemical compatibility and temperature limĆ
ing valve or device, containers, hoses and any object to which
its. Refer to PUMP DATA on page 1 of this manual.
material is being pumped.
CAUTION Be certain all operators of this equipment have
Secure pump, connections and all contact points to avoid
been trained for safe working practices, understand it's limitaĆ
vibration and generation of contact or static spark.
tions, and wear safety goggles / equipment when required.
Consult local building codes and electrical codes for specific
CAUTION Do not use the pump for the structural support of
grounding requirements.
the
piping system. Be certain the system components are
After grounding, periodically verify continuity of electrical path
properly
supported to prevent stress on the pump parts.
to ground. Test with an ohmmeter from each component (e.g.,
S
Suction
and
discharge connections should be flexible connecĆ
hoses, pump, clamps, container, spray gun, etc.) to ground to
tions
(such
as
hose), not rigid piped, and should be compatible
insure continuity. Ohmmeter should show 100 ohms or less.
with
the
substance
being pumped.
Submerse the outlet hose end, dispensing valve or device in
CAUTION
Prevent
unnecessary damage to the pump. Do
the material being dispensed if possible. (Avoid free streaming
not allow pump to operate when out of material for long periods
of material being dispensed.)
of time.
Use hoses incorporating a static wire.
S Disconnect air line from pump when system sits idle for long
Use proper ventilation.
periods of time.
Keep inflammables away from heat, open flames and sparks.
CAUTION Use only genuine ARO replacement parts to asĆ
Keep containers closed when not in use.
sure
compatible pressure rating and longest service life.
WARNING Pump exhaust may contain contaminants. Can
cause severe injury. Pipe exhaust away from work area and perĆ
NOTICE
Replacement warning labels are available upon
sonnel.
request: Static Spark PN \ 93122 & Diaphragm Rupture PN \
In the event of a diaphragm rupture, material can be forced out
93616Ć1."
of the air exhaust muffler.
NOTICE
REĆTORQUE ALL FASTENERS BEFORE OPERAĆ
Pipe the exhaust to a safe remote location when pumping hazĆ
TION. Creep of housing and gasket materials may cause fasĆ
ardous or inflammable materials.
teners to loosen. ReĆtorque all fasteners to insure against fluid
Use a grounded 3/8" min. i.d. hose between the pump and the
or air leakage.
muffler.
WARNING HAZARDOUS PRESSURE. Can result in serious
WARNING = Hazards or unsafe practices which could
result in severe personal injury, death or
injury or property damage. Do not service or clean pump,
substantial property damage.
hoses or dispensing valve while the system is pressurized.
Disconnect air supply line and relieve pressure from the sysĆ
=
Hazards or unsafe practices which could
CAUTION
tem by opening dispensing valve or device and / or carefully
result in minor personal injury, product
and slowly loosening and removing outlet hose or piping from
or property damage.
pump.
=
Important installation, operation or
NOTICE
WARNING EXPLOSION HAZARD. Models containing alumiĆ
maintenance information.
num wetted parts cannot be used with III.ĆTrichloroethane, MeĆ
thylene Chloride or other Halogenated Hydrocarbon solvents
which may react and explode.
PAGE 2 OF 8
6661AXĆXĆC
AIR AND LUBE REQUIREMENTS
S
S
WARNING EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage.
A filter capable of filtering out particles larger than 50 microns should
be used on the air supply. There is no lubrication required other than
the O" ring lubricant which is applied during assembly or repair.
If lubricated air is present, make sure that is compatible with the NiĆ
trile O" rings in the air motor section of the pump.
OPERATING INSTRUCTIONS
S Always flush the pump with a solvent compatible with the material
S
S
S
S
being pumped if the material being pumped is subject to ``setting up"
when not in use for a period of time.
Disconnect the air supply from the pump if it is to be inactive for a few
hours.
The outlet material volume is governed not only by the air supply but
also by the material supply available at the inlet. The material supply
tubing should not be too small or restrictive. Be sure not to use hose
which might collapse.
When the diaphragm pump is used in a forcedĆfeed (flooded inlet)
situation it is recommended that a Check Valve" be installed at the
air inlet.
Secure the diaphragm pump legs to a suitable surface to insure
against damage by vibration.
MAINTENANCE CONTINUED
S Keep good records of service activity and include pump in prevenĆ
tive maintenance program.
S Before disassembling empty captured material in the outlet manifold
by turning the pump upside down to drain material from the pump.
FLUID SECTION DISASSEMBLY
1. Remove top manifold(s).
2. Remove (22) balls, (19 and 33) O" rings and (21) seats.
3. Remove (15) fluid caps.
NOTE: Only Teflon diaphragm models use a (7) primary diaphragm and
an (8) backup diaphragm. Refer to the auxiliary view in the Fluid Section
illustration.
4. Remove the (6) nut, (7) or (7 / 8) diaphragms and (5) washers.
5. Remove (3 and 4) O" rings.
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.
FLUID SECTION REASSEMBLY
S Reassemble in reverse order.
S Clean and inspect all parts. Replace worn or damaged parts with
new parts as required.
S Lubricate (1) diaphragm rod and (2) O" ring with KeyĆLubeR
grease.
S Use ARO PN / 98930ĆT Bullet (installation tool) to aid in installation
of (2) O" ring on (1) diaphragm rod.
MAINTENANCE
S Be certain (7) or (7 / 8) diaphragm(s) align properly with (15) fluid
Refer to the part views and descriptions as provided on page 4 through 7
for parts identification and Service Kit information.
S Certain ARO Smart Parts" are indicated which should be available
for fast repair and reduction of down time.
S Service kits are divided to service two separate diaphragm pump
functions: 1. AIR SECTION, 2. FLUID SECTION. The FLUID SECĆ
TION is divided further to match typical part MATERIAL OPTIONS.
S Provide a clean work surface to protect sensitive internal moving
parts from contamination from dirt and foreign matter during service
disassembly and reassembly.
S
S
caps before making final torque adjustments on bolt and nuts to
avoid twisting the diaphragm.
For models with Teflon diaphragms: Item (8) Santoprene diaphragm
is installed with the side marked AIR SIDE" towards the pump cenĆ
ter body. Install the Teflon Diaphragm with the side marked FLUID
SIDE" towards the fluid cap.
ReĆcheck torque settings after pump has been reĆstarted and run a
while.
Fluid Side
3
1
Air Side
Air
Side
Fluid
Side
5
8
7
6
2
CROSS SECTION VIEW OF DIAPHRAGMS
(Refer to figure 3, page 5)
4
Torque Sequence
(Refer to figure 3, page 5)
Figure 2
S VitonR, TeflonR and HytrelR are trademarks of the DuPont Company S KynarR is a trademark of Penwalt Corp.
S SantopreneR is a trademark of the Monsanto Company, licensed to Advanced Elastomer Systems. L.P. S KeyĆLubeR is a registered trademark of Key Industries
6661AXĆXĆC
PAGE 3 OF 8
PARTS LIST / 6661AX-X-C FLUID SECTION
FLUID SECTION SERVICE KITS
l KITS INCLUDE: BALLS (See BALL Option, refer to ĆXX in chart below), DIAPHRAGMS (See DIAPHRAGM Option, refer to ĆXX in chart below), plus O"
ring items (2), (3), (4), (19) and (33) (listed below) plus a 93706Ć1 KeyĆLube grease packet (see page 6).
SEAT OPTIONS
6661XXĆXXXĆC
21"
ĆXXX Seat
Qty [Mtl]
ĆXXX
Ball
Qty
Ć2XX
Ć3XX
Ć4XX
Ć8XX
(4)
(4)
(4)
(4)
ĆX1X
ĆX2X
ĆX3X
ĆX4X
ĆX5X
93278Ć1
93278Ć2
93278Ć3
93278Ć4
93278Ć5
(4)
(4)
(4)
(4)
(4)
95093
94707Ć1
94707Ć2
94706
[SS]
[P]
[K]
[SH]
MATERIAL CODE
BALL OPTIONS
6661XXĆXXXĆC
l 22" (1Ć1/4" dia.)
[Mtl]
ĆXXX
Ball
Qty
[Mtl]
[N]
[B]
[V]
[T]
[E]
ĆX8X
ĆXAX
ĆXEX
ĆXMX
93278Ć8
92408
93278ĆA
93278ĆM
(4)
(4)
(4)
(4)
[U]
[SS]
[SP]
[SPM]
[B] = Nitrile
[C] = Carbon Steel
[E] = E.P.R.
[H] = Hytrel
[K] = P.V.D.F. (Kynar)
[N] = Neoprene
[P] = Polypropylene
[SP] = Santoprene
[SPM] = Medical Grade Santoprene
[SH] = Hard Stainless Steel
[SS] = Stainless Steel
[T] = Teflon
[U] = Polyurethane
[V] = Viton
DIAPHRAGM OPTIONS 6661XXĆXXXĆC
l 7" / 8"
l 3"
l 4"
ĆXXX
l SERVICE KIT
ĆXX = (Ball)
Diaphragm (2)
ĆXX = (Diaphragm)
ĆXX1
ĆXX2
ĆXX3
ĆXX4
ĆXX5
ĆXX9
ĆXXB
ĆXXM
637161ĆX1ĆC
637161ĆX2ĆC
637161ĆX3ĆC
637161ĆX4ĆC
637161ĆX5ĆC
637161ĆX9ĆC
637161ĆXBĆC
637161ĆXMĆC
l 19"
l 33"
O" Ring (2)
O" Ring (2)
O" Ring (4)
O" Ring (x)
[Mtl] 11/16" o.d. [Mtl] 2Ć1/8" o.d. [Mtl] 1Ć5/8" o.d.
[Mtl]
5/8" o.d.
[Mtl]
90533Ć1
90533Ć2
90533Ć3
93459Ć4 / 92973ĆB
90533Ć5
90533Ć9
90533ĆB
90533ĆM
[N]
[B]
[V]
[T/SP]
[E]
[H]
[SP]
[SPM]
Y325Ć14
Y325Ć14
Y328Ć14
Y328Ć14
Y328Ć14
Y328Ć14
Y328Ć14
Y328Ć14
[B]
[B]
[T]
[T]
[T]
[T]
[T]
[T]
Y325Ć112
Y325Ć112
Y328Ć112
Y328Ć112
Y328Ć112
Y328Ć112
Y328Ć112
Y328Ć112
[B]
[B]
[T]
[T]
[T]
[T]
[T]
[T]
Y325Ć225
Y325Ć225
Y327Ć225
93282
93280
Y327Ć225
93280
93282
[B]
[B]
[V]
[T]
[E]
[V]
[E]
[T]
Y325Ć220
Y325Ć220
Y327Ć220
93281
93279
Y327Ć220
93279
93281
[B]
[B]
[V]
[T]
[E]
[V]
[E]
[T]
x Quantity of eight (8) required for models 6661X3ĆX, 6661X4ĆX and 6661XPĆX.
Quantity of four (4) required for models 6661XFĆX, 6661XGĆX, 6661XJĆX, 6661XKĆX, 6661XLĆX, 6661XNĆX, 6661XRĆX, 6661XSĆX and 6661XTĆX.
MANIFOLD / FLUID CAP MATERIAL OPTIONS 6661XXĆXXXĆC
POLYPROPYLENE
6661X3Ć
6661XPĆ
Item
V6
15
34
35
36
V 37
38
39
60
61
6661XFĆ
6661XRĆ
Description (Size in inches) Qty Part No.
Mtl Part No.
Diaphragm Nut (1/2" Ć 20) (2) 93239Ć1
[P] 93239Ć1
Fluid Cap
(2) 93235Ć[~] [P] 93235Ć[~]
Manifold, Outlet (Top)
(2) 93236Ć[~] [P]
Manifold, Foot (Bottom)
(2) 93237Ć[~] [P]
Swivel
(2) 93238Ć[~] [P]
Clamp
(8) 93283
[SS]
Bolt (1/4" Ć 20 x 1Ć1/2")
(8) Y84Ć403ĆT [SS]
Nut (1/4" Ć 20)
(8) Y12Ć4ĆS
[SS]
Inlet Manifold (Bottom)
(1)
95746Ć[~]
Outlet Manifold (Top)
(1)
95744Ć[~]
P.V.D.F.
6661XJĆ, XLĆ
6661XSĆ, XTĆ
Mtl
[P]
[P]
Part No.
93239Ć1
93235Ć[~]
Mtl
[P]
[P]
[P]
[P]
95747Ć[U]
95745Ć[U]
[P]
[P]
6661X4Ć
6661XGĆ
Part No.
Mtl Part No.
93239Ć2
[K] 93239Ć2
93235Ć2
[K] 93235Ć2
93236Ć2
[K]
93237Ć2
[K]
93238Ć2
[K]
93283
[SS]
Y84Ć403ĆT [SS]
Y12Ć4ĆS
[SS]
95746Ć2
95744Ć2
6661XKĆ, XNĆ
Mtl
[K]
[K]
Part No.
93239Ć2
93235Ć2
Mtl
[K]
[K]
[K]
[K]
95747Ć[Z]
95745Ć[Z]
[K]
[K]
U For N.P.T.F. thread colorless Polyproyplene models (6661XJĆ), use Ć1". For BSP thread colorless Polyproyplene models (6661XLĆ), use Ć3".
For N.P.T.F. thread gray Polyproyplene models (6661XSĆ), use Ć5". For BSP thread gray Polyproyplene models (6661XTĆ), use Ć6".
Z For N.P.T.F. thread models (6661XKĆ), use Ć2". For BSP thread models (6661XNĆ), use Ć4".
~
For colorless Polyproyplene models (6661X3Ć, 6661XFĆ, 6661XJĆ, 6661XLĆ), use Ć1". For gray Polyproyplene models (6661XPĆ, 6661XRĆ, 6661XSĆ, 6661XTĆ), use Ć3".
COMMON PARTS
ITEM
V1
l2
5
24
25
DESCRIPTION (Size in inches)
Qty
Part No.
[Mtl]
Rod
``O" Ring (3/32" x 3/4" o.d.)
Plate
Washer (13/32" i.d.)
Bolt (3/8" Ć 16 x 1Ć1/2")
(1)
(1)
(2)
(8)
(4)
98724Ć1
Y330Ć113
93441Ć2
93360Ć1
Y6Ć67ĆT
[C]
[B]
[C]
[SS]
[SS]
ITEM
26
27
28
29
DESCRIPTION (Size in inches)
Bolt (3/8" Ć 16 x 2Ć1/4")
Bolt (5/16" Ć 18 x 4Ć1/2")
Washer (5/16" i.d.)
Nut (5/16" Ć 18)
V Smart Parts" keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.
PAGE 4 OF 8
Qty
(4)
(4)
(4)
(12)
Part No.
Y6Ć610ĆT
Y6Ć518ĆT
93359Ć1
93886
[Mtl]
[SS]
[SS]
[SS]
[SS]
6661AXĆXĆC
PARTS LIST / 6661AX-X-C FLUID SECTION
36
33 k
38 ,
61
37
6661XJĆX
6661XKĆX
6661XLĆX
6661XNĆX
6661XSĆX
6661XTĆX
26 ,
24
34
61
FOR THE
AIR MOTOR SECTION
SEE PAGES 6 & 7
6661XFĆX
6661XGĆX
6661XRĆX
39
2k
5
22
19 k
21
33 k
29 ,
15
1
7
COLOR CODE
DIAPHRAGM
MATERIAL
COLOR
EPR
Blue (-)
HYTREL
Cream
NEOPRENE
Green (-)
NITRILE
Red (-)
SANTOPRENE
Cream*
SANTOPRENE
Green
(Backup)
T.F.E. (Teflon)
White
POLYURETHANE N/A
VITON
Yellow (-)
(-) STRIPE
28
3k
BALL
COLOR
Blue (S)
N/A
Green (S)
Red (S)
Cream
N/A
LUBRICATION / SEALANTS
k Apply KeyĆLube grease to all O"
rings, U" Cups & mating parts.
4k
27 ,
6,
36
33 k
22
19 k
21
White
Red
Yellow (S)
33 k
24
(S) DOT
8
AIR SIDE
SANTOPRENE
(GREEN when
used as backer)
25 ,
35
60
7
FLUID SIDE
TEFLON
(WHITE)
6661XJĆX
6661XKĆX
6661XLĆX
6661XNĆX
6661XSĆX
6661XTĆX
VIEW FOR ĆXX4 (TEFLON DIAPHRAGM) CONFIGURATION ONLY
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS
(6) Diaphragm Nut 25 Ć 30 ft lbs (33.9 Ć 40.7 Nm),
lubricate face with KeyĆLube grease and
apply Loctite 271 to threads.
(25, 26, 27, 29) Fluid Caps / Manifold Bolts 120 Ć 140 in. lbs
(13.6 Ć 15.8 Nm), apply Loctite Nickel Antiseize to threads.
(38) Bolt 40 Ć 45 in. lbs (4.5 Ć 5.1 Nm).
6661AXĆXĆC
60
6661XFĆX
6661XGĆX
6661XRĆX
Figure 3
PAGE 5 OF 8
PARTS LIST / 6661AX-X-C AIR MOTOR SECTION
n Indicates parts included in 637118ĆC Air Section Service Kit.
SERVICE KIT NOTE: Service Kit 637118ĆC is a general repair kit for all 1" and larger ARO diaphragm pump air motors.
It contains extra O" Rings and extra parts that may not be needed to service this model.
ITEM
DESCRIPTION (Size in inches)
101 Motor Body
Qty Part No.
[Mtl]
ITEM
DESCRIPTION (Size in inches)
Qty Part No.
[Mtl]
(6661AXĆXXXĆC)
(1)
94743
[A]
V116 Spacer
(1)
92006
[Z]
(6661BXĆXXXĆC)
(1)
94741
[CI]
n117
(1)
92004
[B/Ny]
(2)
Y325Ć20
[B]
(1)
93309Ć1
[C]
V103 Sleeve
(1)
94527
[D]
(4)
93075
[U]
n104
(2)
Y145Ć25
[C]
120 Spacer
(3)
115959
[Z]
105 Screw (1/4" Ć 20 x 5/8")
(8)
Y6Ć42ĆT
[SS]
121 Sleeve Bushing
(2)
98723Ć1
[Bz]
106 Lock Washer (1/4")
(8)
Y14Ć416ĆT
[SS]
n122
O" Ring (3/32" x 9/16" o.d.)
(2)
94820
[U]
107 Plate
(2)
93707Ć1
[SS]
n123
Screw (#8 Ć 32 x 3/8")
(4)
Y154Ć41
[C]
(1)
92878
[B/Ny]
V109 Piston
(1)
92011
n110
(1)
Y186Ć51
(6661AXĆXXXĆC)
(1)
(6661BXĆXXXĆC)
n102
n108
O" Ring (1/16" x 1" o.d.)
Retaining Ring, TruArc (.925" i.d.)
Gasket (with notch)
U" Cup (3/16" x 1Ć3/8" o.d.)
V111 Spool
118 Pilot Rod
n119
O" Ring (1/8" x 3/4" o.d.)
124 Screw (5/16" Ć 18 x 2Ć3/8")
(12) 93277
[D]
128 Pipe Plug (1/8 Ć 27 N.P.T. x 1/4")
(1)
Y227Ć2ĆL
[C]
[B]
195 Button Head Screw (1/4" Ć 20 x 1/4")
(3)
94987
[SS]
92005
[A]
201 Muffler
(1)
93110
[C]
(1)
93706Ć1
(1)
93047
[C]
V112 Washer (1.557" o.d.)
(5)
92877
[Z]
n113
O" Ring (1/8" x 1Ć1/4" o.d.)
(5)
Y325Ć214
[B]
n114
O" Ring (3/32" x 1Ć9/16" o.d.)
(6)
Y325Ć126
[B]
(4)
92876
[Z]
V115 Spacer
Gasket
n KeyĆLube O" Ring Lubricant
Pak of 10 KeyĆLube
GENERAL REASSEMBLY NOTES:
S Air Motor Section Service is continued from Fluid Section repair.
S Inspect and replace old parts with new parts as necessary. Look for
deep scratches on metallic surfaces, and nicks or cuts in O" rings.
S Take precautions to prevent cutting O" rings upon installation.
S Lubricate O" rings with KeyĆLube grease.
S Do not overĆtighten fasteners, refer to torque specification block on
view.
S ReĆtorque fasteners following restart.
PILOT VALVE DISASSEMBLY
1. Remove (104) retaining ring.
2. Remove (123) screws and (122) O" rings.
3. Remove (118) piston rod, (121) sleeve bushing, (119) O" rings and
(120) spacers from the (101) motor body.
4. Remove (103) sleeve and (102) O" rings.
PILOT VALVE REASSEMBLY
1. Replace two (102) O" rings if worn or damaged and reinstall (103)
sleeve.
2. Install one of the (121) sleeve bushings, (119) O" rings, (120)
spacers and the remaining (121) bushing.
3. Carefully push (118) pilot rod into bushings etc. and retain on each
end with the two (122) O" rings, retain with (123) screws.
4. Replace (104) retaining rings.
(10) 637175
n Service Kits include: Y212Ć101 (2) Screws (#10 Ć 32 x 1/4") used on units
manufactured between 8/90 and 4/92 to retain the pilot bushing.
MATERIAL CODE
AIR MOTOR SECTION SERVICE
Service is divided into two parts Ć 1. Pilot Valve, 2. Major Valve.
[SS]
[A] =
[B] =
[Bz] =
[C] =
Aluminum
Nitrile
Bronze
Carbon Steel
[CI] =
[D] =
[N] =
[Ny] =
Cast Iron
Acetal
Neoprene
Nylon
[P] =
[U] =
[SS] =
[Z] =
Polypropylene
Polyurethane
Stainless Steel
Zinc
MAJOR VALVE DISASSEMBLY
1. Remove (107) plate (or leg depending on model), (108 and 117)
gaskets.
2. On the side opposite the air inlet, push on the inner diameter (111)
spool. This will force the (109) piston out. Continue pushing the (111)
spool and remove. Check for scratches and gouges.
3. Reach into the air section (exhaust side) and remove (116) spacer,
(115) spacers, (113) O" rings, (114) O" rings, (112) washers, etc.
Check for damaged O" rings.
MAJOR VALVE REASSEMBLY
1. Replace (112) washer, (114) O" ring and (113) O" ring onto (115)
spacer and insert etc.
NOTE: Be careful to orient spacer legs away from blocking inĆ
ternal ports.
2. Lubricate and carefully insert (111) spool.
3. Install (117) gasket and (107).
4. Lubricate and install (110) packing cup and insert (109) piston into
(air inlet side) cavity, the (110) packing cup lips should point outward.
5. Install (108) gasket and replace (107).
V Smart Parts" Keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.
PAGE 6 OF 8
6661AXĆXĆC
PARTS LIST / 6661AX-X-C AIR SECTION
IMPORTANT
BE CERTAIN TO ORIENT (115) SPACER LEGS
AWAY FROM BLOCKING INTERNAL PORTS
WHEN REASSEMBLING AIR SECTION.
117
116
115
105 ,
111
106
k 114
107
k 113
112
MAJOR VALVE
See cross section detail Figure 5.
Figure 4
201
128
104
g 195
101
121
124
z 123
195 g
102 k
103 k
108
102 k
106
104
. 105
107
109
119 k
121
110 k
123 z
118 k
120
MAJOR VALVE CROSS SECTION DETAIL
109 110 k 112
114 k
113 k
115
PILOT VALVE
122 k
111 k 116
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS
(105) 40 Ć 50 in. lbs (4.5 Ć 5.6 Nm).
LUBRICATION / SEALANTS
Figure 5
6661AXĆXĆC
k Apply KeyĆLube to all O" rings, U" Cups & mating parts.
z Apply Loctite 271 to threads.
g Apply DriĆLoc 204 to threads.
PAGE 7 OF 8
TROUBLE SHOOTING
Product discharged from exhaust outlet.
S Check for diaphragm rupture.
S Check tightness of diaphragm nut.
Low output volume, erratic flow, or no flow.
S Check air supply.
S Check for plugged outlet hose.
S Check for kinked (restrictive) outlet material hose.
S Check for kinked (restrictive) or collapsed inlet material hose.
S Check for pump cavitation Ć suction pipe should be sized at least as
large as the inlet thread diameter of the pump for proper flow if high
viscosity fluids are being pumped. Suction hose must be a nonĆcolĆ
lapsing type, capable of pulling a high vacuum.
S Check all joints on the inlet manifolds and suction connections.
These must be air tight.
S Inspect the pump for solid objects logged in the diaphragm chamber
or the seat area.
Air bubbles in product discharge.
S Check connections of suction plumbing.
S Check O" rings between intake manifold and fluid caps.
S Check tightness of diaphragm nut.
DIMENSIONAL DATA
Dimensions shown are for reference only, they are shown in inches and millimeters (mm).
(6661XJĆX, 6661XKĆX, 6661XSĆX) 1 Ć 11Ć1/2 N.P.T.F. Ć 1
(6661XLĆX, 6661XNĆX, 6661XTĆX) 1 Ć 11 BS Rp
E
K
K
N Bolt Circle
Outlet
Figure 6
A
Outlet
B
F
F
D
M
G
Inlet
L
Inlet
J
H
C
May be tapped for 1" pipe.
(6661X3ĆX, 6661X4ĆX, 6661XPĆX) 1" A.N.S.I. Flange
(6661XFĆX, 6661XGĆX, 6661XRĆX) 1" A.N.S.I. / DIN Flange
1/4 Ć 18 N.P.T. Air Inlet
DIMENSIONS
A
B
C
D
E
F
G
H
J
K
L
M
N
6661X3ĆX
6661XPĆX
12Ć21/32" (321 mm)
13Ć25/32" (349 mm)
10Ć1/16" (255 mm)
2Ć3/8" (60 mm)
8Ć1/16" (204 mm)
16" (406 mm)
5Ć1/32" (128 mm)
6Ć9/32" (160 mm)
7/16" (11 mm)
15/16" (23 mm)
2Ć9/32" (57 mm)
1/2" (13 mm)
3.140" (80 mm)
6661X4ĆX
12Ć15/32" (316 mm)
13Ć19/32" (345 mm)
9Ć15/16" (252 mm)
2Ć11/32" (59 mm)
7Ć15/16" (201 mm)
15Ć25/32" (400 mm)
4Ć31/32" (126 mm)
6Ć7/32" (157 mm)
7/16" (11 mm)
29/32" (23 mm)
2Ć1/4" (56 mm)
1/2" (13 mm)
3.097" (79 mm)
6661XJĆX
6661XLĆX
6661XSĆX
6661XTĆX
13Ć5/32" (334 mm)
13Ć25/32" (350 mm)
10Ć1/16" (255 mm)
2Ć11/32" (59 mm)
8Ć1/16" (204 mm)
14Ć13/16" (376 mm)
5Ć1/32" (128 mm)
6Ć9/32" (160 mm)
7/16" (11 mm)
2" (51 mm)
6661XKĆX
6661XNĆX
13Ć1/32" (331 mm)
13Ć19/32" (345 mm)
9Ć15/16" (252 mm)
2Ć5/16" (59 mm)
7Ć15/16" (201 mm)
14Ć5/8" (371 mm)
4Ć31/32" (126 mm)
6Ć7/32" (157 mm)
7/16" (11 mm)
1Ć25/32" (50 mm)
6661XFĆX
6661XRĆX
13Ć5/32" (334 mm)
13Ć25/32" (350 mm)
10Ć1/16" (255 mm)
2Ć11/32" (59 mm)
8Ć1/16" (204 mm)
16" (406 mm)
5Ć1/32" (128 mm)
6Ć9/32" (160 mm)
7/16" (11 mm)
1Ć1/32" (26 mm)
6661XGĆX
13Ć1/32 (331 mm)
13Ć19/32" (345 mm)
9Ć15/16" (252 mm)
2Ć5/16" (59 mm)
7Ć15/16" (201 mm)
15Ć25/32" (401 mm)
4Ć31/32" (126 mm)
6Ć7/32" (157 mm)
7/16" (11 mm)
1" (25 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
3.140" (80 mm)
1/2" (13 mm)
3.097" (79 mm)
PN 97999Ć20
PAGE 8 OF 8
6661AXĆXĆC
SALES & ENGINEERING DATA
6661AX-XXX-C THRU 6661BX-XXX-C
RATIO
SERIES:
A
Outlet
1-31-97
6-15-01
SPECIFICATIONS
E BOLT CIRCLE
1" A.N.S.I. Flange
Air Inlet 1/4 Ć 18 N.P.T.
B
1" A.N.S.I. Flange
CONSTRUCTION
Model Series . . . . . . . . . . . . . . 6661AXĆXXXĆC thru 6661BXĆXXXĆC
Pump Type . . . . . . . . . . . . . . . . . . . . NonĆMetallic, Air Operated,
Double Diaphragm
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . 1:1
Material Inlet / Outlet . . . . . . . . . . . . . 1'' Flange, ANSI Class 150
Air Inlet (female) . . . . . . . . . . . . . . . . 1/4 Ć 18 N.P.T.
Air Exhaust (female) . . . . . . . . . . . . . 3/8 Ć 18 N.P.T.F. Ć 1
Weight
6661A3Ć3XXĆC . . . . . . . 20.25 lbs (9.2 kgs)
6661A4Ć4XXĆC . . . . . . . 28.5 lbs (12.9 kgs)
6661B3Ć3XXĆC . . . . . . . 28.8 lbs (13.06 kgs)
6661B4Ć4XXĆC . . . . . . . 37 lbs (16.78 kgs)
Air Section Service Kit . . . . . . . . . . . 637118ĆC
Fluid Section Service Kit . . . . . . . . . . 637161ĆXXĆC
6661AX Ć X X X Ć C
637161 Ć X X Ć C
D
Diaphragm Material
Ball Material
EXAMPLE: Model 6661A3Ć311ĆC
Fluid Section Service Kit is 637161Ć11ĆC
Inlet
K
20 - 120
RELEASED:
REVISED:
S-873
1’’ NON-METALLIC DIAPHRAGM PUMP
DIMENSIONAL DATA
1:1
FLUID P.S.I.
RANGE:
C
L
F
PERFORMANCE
Air Inlet Pressure Range . . . . . . . . . .
Maximum Material Inlet Pressure . . .
Fluid Pressure Range . . . . . . . . . . . .
Maximum Flow Rate (flooded inlet) . . . . .
Maximum Particle Size . . . . . . . . . . .
Maximum Temperature Limits
Polypropylene . . . . . . . . . . . . . . . . . .
Kynar (PVDF) . . . . . . . . . . . . . . . . . .
Displacement / Cycle @ 100 p.s.i. . . .
Noise Level @ 70 p.s.i. Ć 60 c.p.m.À .
G
J
DIMENSIONS
12Ć11/16" (322 mm)
13Ć13/16" (351 mm)
10Ć1/16 (255 mm)
2Ć3/8" (60 mm)
E
F
G
H
3Ć3/16" (81 mm)
8Ć1/16" (204 mm)
16" (406 mm)
5Ć1/16" (129 mm)
J
K
L
6Ć5/16" (160 mm)
7/16" (11 mm)
2Ć1/4" (57 mm)
NOTE: Dimensions are shown in inches and (mm), supplied for reference only and are
typically rounded up to the nearest 1/16 inch.
INGERSOLL-RAND COMPANY
ONE ARO CENTER D BRYAN, OHIO 43506Ć1100
& (419) 636-4242 D FAX (419) 633-1674
35_ to 150_F (2_ to 66_C)
10_ to 200_F (Ć12_ to 93_C)
0.17 gal. (.64 lit.)
64.5 db(A)­
À Tested with 93110 muffler installed.
­ The pump sound pressure level has been updated to an Equivalent Continuous Sound
Level (LAeq) to meet the intent of ANSI S1. 13Ć1971, CAGIĆPNEUROP S5.1 using four
microphone locations.
H
A
B
C
D
20 Ć 120 p.s.i. (1 Ć 8.3 bar)
10 p.s.i. (0.69 bar)
20 Ć 120 p.s.i. (1 Ć 8.3 bar)
47 g.p.m. (178 l.p.m.)
1/8'' dia. (3.2 mm)
E2001 D PRINTED IN U.S.A.
ACCESSORIES:
65010 Neoprene ``O" Ring Air Motor Kit
65764 Viton ``O" Ring Air Motor Kit
66073Ć1 Air Line Kit
67078 Flange Kit
PERFORMANCE CURVES
6661XXĆXXXĆC 1'' NONĆMETALLIC DIAPHRAGM PUMP
5
125
250
15 20
30
40
45
AIR CONSUMPTION IN SCFM
Performance based on water
at ambient temperature.
100
200
75
NPSHār
150
30
50
25
100
50
20
15
25
10
5
0
0
100
10
80
8
60
6
0
10
20
30
CAPACITY IN U.S. GALLONS PER MINUTE
5 8
12
16
40
4
20
2
0
0
0
AIR CONSUMPTION IN LITERS / SEC
20 22
Performance based on water
at ambient temperature.
8.3 BAR
12
NPSHār
6.9 BAR
40
50
4.8 BAR
8
2.8 BAR
0
4
40
80
120
FLOW RATE (LITERS / MIN)
6661AXĆXĆC SERIES
160
200
0
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