PW10A-X-X
OPERATOR’S MANUAL
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
RELEASED: 3-11-04
REVISED:
(REV. 05)
5-19-10
1” DIAPHRAGM PUMP
1:1 RATIO (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 Model Description Chart to match the pump material options.
637397 for air section repair (see page 6).
637401-XXforfluidsectionrepair(seepage4).NOTE:Thiskitalsocon-
tains several air motor seals which will need to be replaced.
637390-3 major air valve assembly (see page 7).
PUMP DATA
Models . . . . . . . . . . . . . see Model Description Chart for “-XXX”.
Pump Type . . . . . . . . . . MetallicAirOperated DoubleDiaphragm
Material . . . . . . . . . . . . . see Model Description Chart.
Weight . . . . . . . . . . . . . . . . . . . . . . . . . 26.2 lbs (11.9 kgs)
Maximum Air Inlet Pressure . . . . . . . . . 120 p.s.i.g. (8.3 bar)
Maximum Material Inlet Pressure . . . . . 10 p.s.i.g. (0.69 bar)
Maximum Outlet Pressure . . . . . . . . . . 120 p.s.i.g. (8.3 bar)
Maximum Flow Rate (flooded inlet) . . . . 60.0 g.p.m. (227.1 l.p.m.)
Displacement / Cycle @ 100 p.s.i.g. . . . 0.234 gal. (0.89 lit.)
Maximum Particle Size . . . . . . . . . . . . 1/8” dia. (3.3 mm)
Maximum Temperature Limits (diaphragm / ball / seal material)
E.P.R. / EPDM . . . . . . . . . . . -60_to280_F (-51_to 138_C)
HytrelR . . . . . . . . . . . . . . . -20_ to 150_ F (-29_ to 66_ C)
Nitrile . . . . . . . . . . . . . . . . . 10_ to 180_ F (-12_ to 82_ C)
SantopreneR . . . . . . . . . . . -40_to225_F (-40_to 107_C)
PTFE . . . . . . . . . . . . . . . . . 40_ to 225_ F (4_ to 107_ C)
VitonR . . . . . . . . . . . . . . . . -40_to350_F (-40_to 177_C)
Dimensional Data . . . . . . . . . . . . . . . . see page 8
Figure 1
MODEL DESCRIPTION CHART
PW10 A - A A X - X X X
CENTER SECTION MATERIAL
A - Aluminum
FLUID CONNECTION
A - Inlet - 1-1/2 -- 11-1/2 N.P.T.F. - 1
Outlet - 1-1/4 -- 11-1/2 N.P.T.F. - 1
FLUID CAPS & MANIFOLD MATERIAL
A - Aluminum
Mounting Dimension . . . . 5.9375” x 8.75” (150.8 mm x 222.3 mm)
Noise Level @ 70 p.s.i., 60 c.p.m. . . . . . 80.6 db(A){
HARDWARE MATERIAL
P - Plated Steel
S - Stainless Steel
The pump sound pressure levels published here have been updated to an Equivalent
Continuous Sound Level (L ) to meet the intent of ANSI S1.13-1971, CAGI-PNEU-
Aeq
ROP S5.1 using four microphone locations.
SEAT MATERIAL
A - Santoprene
C - Hytrel
F - Aluminum
G - Nitrile
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.
BALL MATERIAL
A - Santoprene
C - Hytrel
T
V
- PTFE
- Viton
G - Nitrile
DIAPHRAGM MATERIAL
A - Santoprene
C - Hytrel
G - Nitrile
T - PTFE / Santoprene
V - Viton
FLUID SECTION SERVICE KIT SELECTION
PW10A - AAX - X X X
637401 - X X
EXAMPLE: MODEL # PW10A-AAP-AAA
FLUID SECTION SERVICE KIT # 637401-AA
Ball
Diaphragm
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET BRYAN, OHIO 43506
(800) 276-4658 D FAX (800) 266-7016
E2010
CCN 15207962
GENERAL DESCRIPTION
OPERATING INSTRUCTIONS
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
theairchamberstoalternatelycreatesuctionandpositivefluidpressure
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 pres-
sure and will stop cycling once maximum line pressure is reached (dis-
pensing device closed) and will resume pumping as needed.
S Always flush the pump with a solvent compatible with the material
being pumped ifthe materialbeing pumpedissubjectto“settingup”
when not in use for a period of time.
S Disconnecttheairsupplyfromthepumpifitistobeinactiveforafew
hours.
PARTS AND SERVICE KITS
Refertothepartviewsanddescriptionsasprovidedonpage4through7
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 SEC-
TION is divided further to match typical part MATERIAL OPTIONS.
AIR AND LUBE REQUIREMENTS
WARNING EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage.
S Afiltercapableoffilteringoutparticleslargerthan50micronsshould
beusedontheairsupply. Thereisnolubricationrequiredotherthan
the “O” ring lubricant which is applied during assembly or repair.
S If lubricated air is present, make sure that it is compatible with the
Nitrile seals in the air motor section of the pump.
MAINTENANCE
S Provide a clean work surface to protect sensitive internal moving
partsfromcontaminationfromdirtandforeignmatter duringservice
disassembly and reassembly.
S Keep good records of service activity and include pump in preven-
tive maintenance program.
S Before disassembling, empty captured material in the outlet man-
ifold by turning the pump upside down to drain material from the
pump.
INSTALLATION
S Verify correct model / configuration prior to installation.
S Retorque all external fasteners per specifications prior to start up.
S Pumpsaretestedinwateratassembly. Flushpumpwithcompatible
fluid prior to installation.
FLUID SECTION DISASSEMBLY
S When the diaphragm pump is used in a forced-feed (flooded inlet)
situation, it is recommended that a “Check Valve” be installed at the
air inlet.
1. Remove (61) outlet manifold, (60) inlet manifold.
2. Remove (22) balls, (19 and 33) “O” rings (if applicable) and (21)
seats.
S Material supply tubing should be at least the same diameter as the
pump inlet manifold connection.
3. Remove (15) fluid caps.
S Material supply hose must be reinforced, non-collapsible type com-
patible with the material being pumped.
NOTE: Only PTFE diaphragm models use a primary diaphragm (7) and
a backup diaphragm (8). Refer to the auxiliary view in the Fluid Section
illustration.
S Piping must be adequately supported. Do not use the pump to sup-
port the piping.
4. Remove the (14) screw, (6) diaphragm washer, (7) or (7 / 8) dia-
phragms, and (5) backup washer.
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.
S Use flexible connections (such as hose) at the suction and dis-
charge. These connections should not be rigid piped and must be
compatible with the material being pumped.
S Secure the diaphragm pump legs to a suitable surface (level and
flat) to insure against damage by vibration.
FLUID SECTION REASSEMBLY
S Pumpsthat needtobesubmersedmusthavebothwetandnon-wet
components compatible with the material being pumped.
S Submersed pumps must have exhaust pipe above liquid level. Ex-
haust hose must be conductive and grounded.
S Flooded suction inlet pressure must not exceed 10 p.s.i.g. (0.69
bar).
S Reassemble in reverse order. Refer to the torque requirements on
page 5.
S Clean and inspect all parts. Replace worn or damaged parts with
new parts as required.
S Lubricate (1) diaphragm rod and (144) “U” cup with LubriplateR
FML-2 grease (94276 grease packet is included in service kit).
S FormodelswithPTFEdiaphragms:Item(8)Santoprenediaphragm
is installed with the side marked “AIR SIDE” towards the pump cen-
ter body. Install the PTFE diaphragm (7) with the side marked
“FLUID SIDE” towards the (15) fluid cap.
S Re-check torque settings after pump has been re-started and run a
while.
S
VitonR and HytrelR are trademarks of the DuPont Company,
S
KynarR is a registered trademark of Penwalt Corp.
S
LoctiteR is a registered trademark of Henkel Loctite Corporation
S
S
SantopreneR is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P.,
S
LubriplateR is a registered trademark of Lubriplate Division (Fiske Brothers)
S
PW10A-X-X
Page 3 of 8
PARTS LIST / PW10A-X-X FLUID SECTION
L 637401-XX FLUID SECTION SERVICE KITS INCLUDE: BALLS (see Ball Option, refer to -XX in Service Kit chart below), DIAPHRAGMS
(see Diaphragm Option, refer to -XX in Service Kit chart below), and items 19, 70, 144 and 175 (listed below) plus 174 and 94276 Lubri-
plate FML-2 grease (page 6).
SEAT OPTIONS
PW10A-XXX-XXX
“21”
BALL OPTIONS
PW10A-XXX-XXX
L “22” (1-1/4” dia.)
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
-XXX Seat
Qty [Mtl]
(4) [SP]
(4) [H]
(4) [A]
(4) [B]
-XXX Ball
Qty [Mtl]
(4) [SP]
(4) [H]
(4) [B]
(4) [T]
(4) [V]
[E] = E.P.R.
[H] = Hytrel
-AXX 96152-A
-CXX 96152-C
-FXX 96156
-XAX 93278-A
-XCX 93278-C
-XGX 93278-2
-XTX 93278-4
-XVX 93278-3
[SP] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
[V] = Viton
-GXX 96152-G
DIAPHRAGM OPTIONS PW10A-XXX-XXX
L Service Kit
-XX = (Ball)
-XXX -XX = (Diaphragm) Diaphragm Qty [Mtl] Diaphragm Qty [Mtl] Gasket
L “7”
L “8”
L “19”
L “33”
Qty [Mtl] Gasket
(4) [E] 93279
(4) [V] Y327-220
(4) [B] Y325-220
(4) [T] 93281
Qty [Mtl]
(4) [E]
(4) [V]
(4) [B]
(4) [T]
(4) [V]
-XXA 637401-XA
-XXC 637401-XC
-XXG 637401-XG
-XXT 637401-XT
-XXV 637401-XV
96267-A
96267-C
96267-G
96146-T
95989-3
(2) [SP] - - - - -
(2) [H] - - - - -
(2) [B] - - - - -
(2) [T] 96145-A
(2) [V] - - - - -
- - - - - - 93280
- - - - - - Y327-225
- - - - - - Y325-225
(2) [SP] 93282
- - - - - - Y327-225
(4) [V] Y327-220
NOTE: Gasket items 19 and 33 are not required with seat options -AXX, -CXX and -GXX.
EXTERNAL HARDWARE OPTIONS PW10A-XXX-XXX
PW10A-XXP-
Qty Part No.
(8) 95880-1
(20) 95896-1
(20) 95879-1
PW10A-XXS-
Item Description (size)
[Mtl] Part No.
[C] 95880
[C] 95896
[C] 95879
[Mtl]
[SS]
[SS]
[SS]
26 Screw (M8 x 1.25 - 6g x 30 mm)
27 Screw (M8 x 1.25 - 6g x 40 mm)
29 Nut (M8 x 1.25 - 6h)
COMMON PARTS
Item
Description (size)
1 Rod
Qty Part No.
Mtl
[C]
[C]
[C]
[SS]
[SS]
[A]
[Co]
[A]
Item
Description (size)
Qty Part No.
Mtl
[A]
[A]
[B]
[C]
[B]
(1) 95995
(2) 95990-3
(2) 95990-3
(2) 93189-1
(2) 95997
(2) 95935
(1) 93004
(1) 96154
(1) 96155
68 Air Cap
69 Air Cap
L n 70 Gasket
(1) 95994-2
(1) 95994-1
(2) 95843
(4) 96001
(2) Y186-49
(2) Y325-114 [B]
(4) 96006
(4) 96005
5 Backup Washer
6 Diaphragm Washer
9 Washer (0.505” i.d.)
131 Screw (M8 x 1.25 - 6g x 95 mm)
L n 144 “U” Cup (3/16” x 1-1/8” o.d.)
L n 175 “O” Ring (3/32” x 13/16” o.d.)
n 180 Washer
14 Screw (M12 x 1.75 - 6g x 25 mm)
15 Fluid Cap
43 Ground Lug
60 Inlet Manifold
61 Outlet Manifold
[Co]
[SS]
195 Nut (M8 x 1.25 - 6h)
[A]
n Air Section Service Kit Parts, see page 6.
Page 4 of 8
PW10A-X-X
PARTS LIST / PW10A-X-X FLUID SECTION
. TORQUE REQUIREMENTS ,
COLOR CODE
DIAPHRAGM
COLOR
3
1
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
BALL
COLOR
5
8
MATERIAL
(14) screw, tighten to 25 - 30 ft lbs (33.9 - 40.7 Nm).
(26) screws, 20 - 25 ft lbs (27.1 - 33.9 Nm).
(29) nuts, 15 - 20 ft lbs (20.3 - 27.1 Nm).
HYTREL
NITRILE
Cream
Black
SANTOPRENE Tan
SANTOPRENE Green
(Backup)
Cream
Red (S)
Tan
9
10
N / A
(131) screws, 12 - 17 ft lbs (16.3 - 23.0 Nm).
PTFE
VITON
White
Yellow (-)
(-) Dash
White
Yellow (S)
(S) Dot
LUBRICATION / SEALANTS
k Apply Lubriplate FML-2 Grease to all “O” rings, “U”
Cups & mating parts.
x Apply LoctiteR 242 to threads at assembly.
- Apply PTFE tape to threads at assembly.
~ Apply Loctite 271 to threads at assembly.
U Apply anti-seize compound to threads at assembly.
Y Not used with PW10A-AAX-AXX, -CXX and -GXX.
Z Lubriplate FML-2 is a white food grade petroleum grease.
7
6
2
4
Torque Sequence
61
FOR THE
AIR MOTOR SECTION
SEE PAGES 6 & 7
26 , U
70 k
68
144 k
131 ,x
70 k 29 ,
195
69
7
9
22
19 Y
21
33 Y
27 U
15
175 k
144 k
43
175 k
29 ,
27 U 1 k 180 k
5
22
26 , U
6
14 , ~
19 Y
21
60
Figure 2
33 Y
View of two piece PTFE diaphragm
Santoprene 8
PTFE 7
PW10A-X-X
Page 5 of 8
PARTS LIST / PW10A-X-X AIR SECTION
n Indicates parts included in 637397 Air Section Service Kit shown below and items (70), (144), (175) and (180) shown on page 4.
AIR MOTOR PARTS
Item Description (size)
101 Center Body
103 Bushing
Qty Part No.
(1) 95888
(1) 96000
[Mtl]
[A]
[D]
Item Description (size)
Qty Part No.
(1) 96171
[Mtl]
[B]
[D]
n 166 Gasket
n 167 Pilot Piston (includes 168 and 169) (1) 67164
105 Screw (M6 x 1 - 6g x 16 mm long) (4) 95991
[SS]
[D]
[SS]
[D]
[SS]
[B]
168 “O” Ring (3/32” x 5/8” o.d.)
169 “U” Cup (1/8” x 7/8” o.d.)
170 Piston Sleeve
(2) 94433
(1) Y240-9
(1) 94081
(1) Y325-119
(1) Y325-22
(2) Y325-123
(2) Y325-202
(2) 95845
[U]
[B]
[Br]
[B]
[B]
[B]
[B]
[SP]
111 Spool
118 Actuator Pin
121 Sleeve
(1) 95835
(2) 95999
(2) 95123
n 171 “O” Ring (3/32” x 1-1/8” o.d.)
n 172 “O” Ring (1/16” x 1-1/8” o.d.)
n 173 “O” Ring (3/32” x 1-3/8” o.d.)
Kn 174 “O” Ring (1/8” x 1/2” o.d.)
n 176 Diaphragm (check valve)
181 Roll Pin (5/32” o.d. x 1/2” long)
n 200 Gasket
128 Pipe Plug (1/8 - 27 N.P.T. x 0.27”) (1) Y17-50-S
n 132 Gasket
(1) 96170
133 Washer (1/4”)
(3) Y117-416-C [C]
134 Screw (M6 x 1 - 6g x 20 mm)
135 Valve Block
136 End Cap
(4) 95887
(1) 95942-1
(1) 95941
(1) 95844
(1) Y186-53
(1) Y186-49
(1) 95838
(1) 95837
[SS]
[Z]
[Z]
[B]
[B]
[B]
[AO]
[AO]
(4) Y178-52-S [SS]
(1) 96172
(1) 350-568
(1) 95832
(1) 94276
(10) 637308
[B]
- - -
[P]
n 137 Gasket
201 Muffler
233 Adapter Plate
n 138 “U” Cup (3/16” x 1-5/8” o.d.)
n 139 “U” Cup (3/16” x 1-1/8” o.d.)
140 Valve Insert
L n Lubriplate FML-2 Grease
Lubriplate Grease Packets
K
Fluid Section Service Kit Parts, see page 4.
141 Valve Plate
AIR MOTOR SECTION SERVICE
MAJOR VALVE DISASSEMBLY
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
GENERAL REASSEMBLY NOTES:
1. Remove (135) valve block and (233) adapter plate, exposing (132
and 166) gaskets and (176) checks.
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 surfaces, and nicks or cuts in “O” rings.
S Take precautions to prevent cutting “O” rings upon installation.
S Lubricate “O” rings with Lubriplate FML-2 grease.
S Do not over-tighten fasteners, refer to torque specification block on
view.
2. Insertasmallflatbladescrewdriverintothenotchinthesideof(135)
valveblockandpushinontabtoremove(233)adapterplate,releas-
ing (140) valve insert, (141) valve plate, (200) gasket.
3. Remove (136) end cap and (137) gasket, releasing (111) spool.
MAJOR VALVE REASSEMBLY
S Re-torque fasteners following restart.
1. Install new (138 and 139) “U” cups on (111) spool -- LIPS MUST
FACE EACH OTHER.
2. Insert (111) spool into (135) valve block.
S SERVICE TOOLS -- To aid in the installation of (168) “O” rings onto
the (167) pilot piston, use tool # 204130-T, available from ARO.
3. Install(137)gasketon(136)endcapandassembleendcapto(135)
valve block, securing with (105) screws. NOTE: Tighten (105)
screws to 35 - 40 in. lbs (4.0 - 4.5 Nm).
4. Install(140)valveinsertand(141)valveplateinto(135)valveblock.
NOTE: Assemble (140) valve insert with “dished” side toward (141)
valve plate. Assemble (141) valve plate with part number identifica-
tion toward (140) valve insert.
PILOT VALVE DISASSEMBLY
1. A light tap on (118) should expose the opposite (121) sleeve, (167)
pilot piston and other parts.
2. Remove (170) sleeve, inspect inner bore of sleeve for damage.
5. Assemble(200)gasketand(233)adapterplateto(135)valveblock.
NOTE: Assemble (233) adapter plate with notched side down.
6. Assemble (132 and 166) gaskets and (176) checks to (101) body.
7. Assemble (135) valve block and components to (101) body, secur-
ing with (134) screws. NOTE: Tighten (134) screws to 40 - 50 in. lbs
(4.5 - 5.6 Nm).
PILOT VALVE REASSEMBLY
1. Clean and lubricate parts not being replaced from service kit.
2. Install new (171 and 172) “O” rings, replace (170) sleeve.
3. Installnew (168) “O” ringsand(169) seal -Note thelip direction. Lu-
bricate and replace (167).
4. Reassemble remaining parts, replace (173 and 174) “O” rings.
Page 6 of 8
PW10A-X-X
PARTS LIST / PW10A-X-X AIR SECTION
173 k
118
169 k 168 k
PILOT VALVE
PART GROUP
172 k
171 k
170
k 174
121
173 k
121
167
118
166 k
174 k
233
140
141 k
135
133
U . 134
k 138
Notch
200 k
132 k 176 k 101 181 103
201
111
k 139
Insert screwdriver here to remove (233) adapter plate.
k 137
MAJOR
VALVE
- 128
136
MATERIAL CODE
[A] = Aluminum
[AO] = Alumina Oxide
[B] = Nitrile
U . 105
Figure 3
[Br] = Brass
[C] = Carbon Steel
[D] = Acetal
[P] = Polypropylene
[SP] = Santoprene
[SS] = Stainless Steel
[U] = Polyurethane
[Z] = Zinc
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
Torque (105) screws to 35 - 40 in. lbs (4.0 - 4.5 Nm).
Torque (134) screws to 40 - 50 in. lbs (4.5 - 5.6 Nm).
LUBRICATION / SEALANTS
k
Apply Lubriplate FML-2 grease to “O” rings, “U” Cups & mating parts.
- Apply PTFE tape to threads at assembly.
U
Apply anti-seize compound to threads at assembly.
A replacement 637390-3 Major Valve Service Assembly is available separately, which
includesthefollowing:105(4),111,128,132,135,136,137,138, 139,140, 141,166,
176 (2), 200 and 233.
PW10A-X-X
Page 7 of 8
TROUBLE SHOOTING
Product discharged from exhaust outlet.
S Check for diaphragm rupture.
S Check tightness of (14) diaphragm screw.
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 -- 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 non-col-
lapsing type, capable of pulling a high vacuum.
S Check all joints on the inlet manifolds and suction connections.
These must be air tight.
Air bubbles in product discharge.
S Check connections of suction plumbing.
S Check “O” rings between intake manifold and inlet side fluid caps.
S Check tightness of (14) diaphragm screw.
Motor blows air or stalls.
S Check (176) check valve for damage or wear.
S Check for restrictions in valve / exhaust.
S Inspectthepumpforsolidobjectslodgedinthediaphragmchamber
or the seat area.
DIMENSIONAL DATA
(Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
Exhaust Port 3/4 - 14 N.P.T.
Air Inlet 1/2 - 14 N.P.T.
1-1/4 - 11-1/2 N.P.T.F. - 1
11-11/16”
14-1/32”
(296.4 mm)
(356.2 mm)
5-27/32”
8-1/8”
(148.2 mm)
(206.4 mm)
Outlet
16-7/8”
(428.6 mm)
8-1/16”
(204.7 mm)
2-15/32”
(62.7 mm)
Inlet
3/8” (9.5 mm)
1/2” (12.7 mm)
5-15/16”
(150.8 mm)
8-3/4”
7-21/32” (194.5 mm)
(222.3 mm)
1-1/2 - 11-1/2 N.P.T.F. - 1
Figure 4
PN 97999-1078
PW10A-X-X
Page 8 of 8
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