IR ARO PD15 Series User manual

OPERATOR’S MANUAL PX15X-XXX-XXX-AXXX
INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE RELEASED: 8-7-03
REVISED: 1-11-19
(REV: AB)
1-1/2" 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
637375-XXX for uid section repair with seats (see page 6).
637375-XX for uid section repair without Seats (see page 6).
NOTE: This kit also contains several air motor seals which will
need to be replaced.
637389 for air section repair (see page 7).
637390-X major air valve assembly (see page 8).
PUMP DATA
Models...... see Model Description Chart on page 2 for
“-XXX” options
Pump Type.. Metallic Air Operated Double Diaphragm
Material..... see Model Description Chart
Weight ...... PX15R-XAX-XXX-AXXX 37.65 lbs (17.08 kgs)
PX15R-XCX-XXX-AXXX 73.2 lbs (33.2 kgs)
PX15R-XHX-XXX-AXXX 86.9 lbs (39.4 kgs)
PX15R-XSX-XXX-AXXX. 61.2 lbs (27.8 kgs
Maximum Air Inlet Pressure ........ 120 psig (8.3 bar)
Maximum Material Inlet Pressure... 10 psig (0.69 bar)
Maximum Outlet Pressure .......... 120 psig (8.3 bar)
Maximum Flow Rate (flooded inlet) . 123 gpm (465.6 lpm)
Displacement / Cycle @ 100 psig .... 0.617 gal (2.34 ltrs)
Maximum Particle Size. . . . . . . . . . . . . . 1/4” dia. (6.4 mm)
Maximum Temperature Limits (diaphragm / ball / seat
material)
E.P.R / EPDM .............. -60° to 280° F (-51° to 138° C)
Hytrel® ................... -20° to 180° F (-29° to 82° C)
Nitrile® ................... 10° to 180° F (-12° to 82° C)
Polypropylene ............ 32° to 175° F (0° to 79° C)
Santoprene®.............. -40° to 225° F (-40° to 107° C)
PTFE. . . . . . . . . . . . . . . . . . . . . . 40° to 225° F (4° to 107° C)
Viton® .................... -40° to 350° F (-40° to 177° C)
Dimensional Data................... see page 9
Mounting Dimensions .............. 9” x 11.75”
(228.6 mm x 298.5 mm)
Noise Level @ 70 psig, 60 cpm........ 82.8 dB(A)

The pump sound pressure levels published here have been updated to
an Equivalent Continuous Sound Level (LA
eq
) to meet the intent of ANSI
S1.13-1971, CAGI-PNEUROP S5.1. using four microphone locations.
Model PD15X
Model PE15X
Figure 1

Page 2 of 12 PX15X-XXX-XXX-AXXX (en)
MODEL DESCRIPTION CHART
Model Code Explanation
Example: PX15 X -XXX-XXX-AX
XX
Model Series
PD15- Standard Pump
PE15- Electronic Interface
Center Body Material
A - Aluminum
Fluid Connection
B- Rp 1-1/2 (1-1/2 - 11 BSP, parallel)
Fluid Caps & Manifold Material
A- Aluminum
C- Cast Iron
H- Hastelloy - C
Hardware Material
P- Plated Steel
Seat Material
A- Santoprene
C- Hytrel
E- Carbon Steel
F- Aluminum
Ball Material
A- Santropene
C- Hytrel
G- Nitrile
S- 316 Stainless steel
T- PTFE
V- Viton
Diaphragm Material
A- Santoprene
C- Hytrel
G- Nitrile
M- Medical Grade Santoprene
Revision
A- Revision
Specialty Code 1 (Blank if no Speciality Code)
B- Solenoid 12 VDC, 24 VAC and 22 VAC
D- Solenoid 24 VDC, 48 VAC and 44 VAC
A- Solenoid 120 VAC,110 VAC AND 60 VDC
C- Solenoid 240 VAC, 220 VAC AND 120 VDC
G- Solenoid 12 VDC ATEX / IECEx
H- Solenoid 24 VDC ATEX / IECEx
K- Solenoid 220 VAC ATEX / IECEx
N- Solenoid with no Coil
P- Ported Motor (No major valve)
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.
G- End of Stroke ATEX / IECE / NEC / CECx
F- End of Stroke feedback
E- End of Stroke feedback + Leak Detection
R- End of Stroke NEC
Special Testing
For Special Testing options, please contact your nearest Ingersoll Rand Customer Service Representative or Distributor.
L- Leak Detection
E- Solenoid 12 VDC NEC / CEC
F- Solenoid 24 VDC NEC / CEC
J- Solenoid 120 VAC NEC / CEC
A- 1-1/2 - 11-1/2 NPTF
T- Santoprene, PTFE
V- Viton
0- Standard Valve Block (No Solenoid)
S- Cycle Sensing on Major Valve
T- End of Stroke NEC / Leak Detection NEC
0- No option
R - Polypropylene
Specialty Code 2 (Blank if no Speciality Code)
L- Long Life PTFE
S - Stainless Steel
Y- 1-1/2” A.N.S.I. / DIN Flange
S- Stainless Steel
S- Stainless Steel
G- Nitrile
H- Hard 440 Stainless Steel
L- Hastelloy - C
S- 316 Stainless Steel
H- End of Stroke + Leak Detection ATEX / IECEx / NEC / CEC
M- Leak Detection ATEX / IECEx / NEC / CEC

PX15X-XXX-XXX-AXXX (en) Page 3 of 12
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE
WARNING
EXCESSIVE AIR PRESSURE. Can cause
personal injury, pump damage or property damage.
yDo not exceed the maximum inlet air pressure as
stated on the pump model plate.
yBe sure material hoses and other components are
able to withstand fluid pressures developed by this
pump. Check all hoses for damage or wear. Be certain
dispensing device is clean and in proper working
condition.
WARNING
STATIC SPARK. Can cause explosion
resulting in severe injury or death. Ground pump and
pumping system.
ySparks can ignite flammable material and vapors.
yThe pumping system and object being sprayed must
be grounded when it is pumping, flushing, recirculat-
ing or spraying flammable materials such as paints,
solvents, lacquers, etc. or used in a location where
surrounding atmosphere is conducive to spontaneous
combustion. Ground the dispensing valve or device,
containers, hoses and any object to which material is
being pumped.
ySecure pump, connections and all contact points to avoid
vibration and generation of contact or static spark.
yConsult local building codes and electrical codes for
specific grounding requirements.
yAfter grounding, periodically verify continuity of
electrical path to ground. Test with an ohmmeter from
each component (e.g., hoses, pump, clamps, con-
tainer, spray gun, etc.) to ground to insure continuity.
Ohmmeter should show 0.1 ohms or less.
ySubmerse the outlet hose end, dispensing valve or
device in the material being dispensed if possible.
(Avoid free streaming of material being dispensed.)
yUse hoses incorporating a static wire.
yUse proper ventilation.
yKeep inflammables away from heat, open flames and
sparks.
yKeep containers closed when not in use.
WARNING
P ump exhaust may contain contaminants.
Can cause severe injury. Pipe exhaust away from work
area and personnel.
yIn the event of a diaphragm rupture, material can be
forced out of the air exhaust muffler.
yPipe the exhaust to a safe remote location when
pumping hazardous or inflammable materials.
yUse a grounded 3/4”minimum ID hose between the
pump and the muffler.
WARNING
HAZARDOUS PRESSURE. Can result in
serious injury or property damage. Do not service
or clean pump, hoses or dispensing valve while the
system is pressurized.
yDisconnect air supply line and relieve pressure from
the system by opening dispensing valve or device
and / or carefully and slowly loosening and removing
outlet hose or piping from pump.
WARNING
HAZARDOUS MATERIALS. Can cause serious
injury or property damage. Do not attempt to return
a pump to the factory or service center that contains
hazardous material. Safe handling practices must comply
with local and national laws and safety code requirements.
yObtain Material Safety Data Sheets on all materials
from the supplier for proper handling instructions.
WARNING
EXPLOSION HAZARD. Models con-
taining aluminum wetted parts cannot be usedwith
III.-Trichloroethane,Methylene Chloride or other
Halogenated Hydrocarbon solvents which may react
and explode.
yCheck pump motor section, fluid caps, manifolds and
all wetted parts to assure compatibility before using
with solvents of this type.
WARNING
MISAPPLICATION HAZARD. Do not use
models containing aluminum wetted parts with food
products for human consumption. Plated parts can
contain trace amounts of lead.
CAUTION
Verify the chemical compatibility of the
pump wetted parts and the substance being pumped,
flushed or recirculated. Chemical compatibility may
change with temperature and concentration of the
chemical(s) within the substances being pumped,
flushed or circulated. For specific fluid compatibility,
consult the chemical manufacturer.
CAUTION
Maximum temperatures are based
on mechanical stress only. Certain chemicals will
significantly reduce maximum safe operating
temperature. Consult the chemical manufacturer for
chemical compatibility and temperature limits. Refer
to PUMP DATA on page 1 of this manual.
CAUTION
Be certain all operators of this equipment
have been trained for safe working practices,
understand it’s limitations, and wear safety goggles /
equipment when required.
CAUTION
Do not use the pump for the structural
support of the piping system. Be certain the system
components are properly supported to prevent stress
on the pump parts.
ySuction and discharge connections should be flex-
ible connections (such as hose), not rigid piped,
and should be compatible with the substance being
pumped.
CAUTION
Prevent unnecessary damage to the
pump. Do not allow pump to operate when out of
material for long periods of time.
yDisconnect air line from pump when system sits idle
for long periods of time.
CAUTION
Use only genuine ARO ® replacement parts to
assure compatible pressure rating and longest service life.
NOTICE
TORQUE ALL FASTENERS BEFORE
OPERATION. Creep of housing and gasket materials
may cause fasteners to loosen. Re -Torque all
fasteners to ensure against fluid or air leakage.
WARNING
= Hazards or unsafe practices which
could result in severe personal injury,
death or substantial property damage.
CAUTION
=Hazards or unsafe practices which
could result in minor personal injury,
product or property damage.
NOTICE
=Important installation, operation or
maintenance information.

Page 4 of 12 PX15X-XXX-XXX-AXXX (en)
Viton®, Hytrel® are trademarks of the DuPont Company yKynar® is a registered trademark of the Arkema Inc. yLoctite® and 242 are registered trademarks of the Henkel Loctite Corporation y
yARO® is a registered trademark of Ingersoll-Rand Company ySantoprene® is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. y
yLubriplate® is a registered trademark of Lubriplate Division (Fiske Brothers Rening Company) y271
TM
is a trademark of Henkel Loctite Corporation y
GENERAL DESCRIPTION
The ARO diaphragm pump oers high volume delivery even
at low air pressure and a broad range of material compat-
ibility options available. Refer to the model and option chart.
ARO pumps feature stall resistant design, modular air motor /
uid sections.
Air operated double diaphragm pumps utilize a pressure
dierential in the air chambers to alternately create suction
and positive uid pressure in the uid chambers, ball checks
ensure a positive ow of uid.
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 pressure and will stop cycling once maxi-
mum line pressure is reached (dispensing device closed) and
will resume pumping as needed.
AIR AND LUBE REQUIREMENTS
WARNING
EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage.
yA filter capable of filtering out particles larger than 50 mi-
crons should be used on the air supply. There is no lubrica-
tion required other than the “O” ring lubricant which is ap-
plied during assembly or repair.
yIf lubricated air is present, make sure that it is compatible-
with the “O” rings and seals in the air motor section of the
pump.
INSTALLATION
yVerify correct model / conguration prior to installation.
yRetorque all external fasteners per specications prior to
start up.
yPumps are tested inwater at assembly. Flush pump with
compatible uid prior to installation.
yWhen the diaphragm pump is used in a forced-feed
(ooded inlet) situation, it is recommended that a “Check
Valve” be installed at the air inlet.
yMaterial supply tubing should be at least the same diam-
eter as the pump inlet manifold connection.
yMaterial supply hose must be reinforced, non-collapsible
type compatible with the material being pumped.
yPiping must be adequately supported. Do not use the
pump to support the piping.
yUse flexible connections (such as hose) at the suction
and discharge. These connections should not be rigid
piped and must be compatible with the material being
pumped.
ySecure the diaphragm pump legs to a suitable surface
(level and at) to ensure against damage by vibration.
yPumps that need to be submersed must have both wet
and non-wet components compatible with the material
being pumped.
ySubmersed pumps must have exhaust pipe above liquid
level. Exhaust hose must be conductive and grounded.
yFlooded suction inlet pressure must not exceed 10 psig
(0.69 bar).
OPERATING INSTRUCTIONS
yAlways flush the pump with a solvent compatible with
the material being pumped if the material being pumped
is subject to “setting up” when not in use for a period of
time.
yDisconnect the air supply from the pump if it is to be in-
active for a few hours.
PARTS AND SERVICE KITS
Refer to the part views and descriptions as provided on page
5 through 8 for parts identication and Service Kit informa-
tion.
yCertain ARO “Smart Parts” are indicated which should be
available for fast repair and reduction of down time.
yService kits are divided to service two separate dia-
phragm pump functions: 1. AIR SECTION, 2. FLUID SEC-
TION. The FLUID SECTION is divided further to match
typical part MATERIAL OPTIONS.
MAINTENANCE
yProvide a clean work surface to protect sensitive internal
moving parts from contamination from dirt and foreign-
matter during service disassembly and reassembly.
yKeep good records of service activity and include pump
in preventive maintenance program.
yBefore 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 (61) outlet manifold and (60) inlet manifold.
2. Remove (22) balls, (19) “O” rings and (21) seats.
3. Remove (15) uid caps.
NOTE: Only PTFE diaphragm models use a primary dia-
phragm (7) and a backup diaphragm (8).
4. Remove the (14) screw, (6) diaphragm washer, (7) or (7 / 8)
diaphragms and (5) backup washer.
NOTE: Do not scratch or mar the surface of (1) diaphragm
rod.
FLUID SECTION REASSEMBLY
yReassemble in reverse order. Refer to the torque require-
ments on page 6.
yClean and inspect all parts. Replace worn or damaged
parts with new parts as required.
yLubricate (1) diaphragm rod and (144) “U” cup with
Lubriplate

FML-2 grease (94276 grease packet is includ-
ed in service kit).
yFormodelswith PTFE diaphragms: Item(8) Santoprene
diaphragm is installed with the side marked “AIR SIDE” to-
wards the pump center body. Install the PTFE diaphragm
(7) with the side marked “FLUID SIDE” towards the (15)
uid cap.
yCheck torque settings after pump has been re-started
and run a while.

PX15X-XXX-XXX-AXXX (en) Page 5 of 12
Fluid Section Service Kits (637375-XXX OR 637375-XX)
For Fluid Kits With Seats:
637375-XXX Fluid section service kit includes: Seats (see SEAT Option, refer to -XXX in chart below), Balls (see BALL Option, refer to -XXX in chart
below), Diaphragms (see DIAPHRAGM Option, refer to -XXX in chart) and item 19, 70, 144, 175 and 180 (listed below) plus items 174 and 94276
Lubriplate® FML-2 grease (page 7).
For Fluid Kits Without Seats:
637375-XX Fluid section service kit includes: Balls (see BALL Option, refer to -XX in chart below), Diaphragms (see Diaphragm Option, refer to -XX in
chart below) and item 19, 70, 144, 175 and 180 (listed below) plus items 174 and 94276 Lubriplate® FML-2 grease (page 7).
COMMON PARTS PX15XXXXXXXAXXX
Item Description [Mtl] Qty Part no
1 Connecting Rod [C] (1) 97147
70 Gasket [B] (2) 95843
76 Pipe Plug (1/8 - 27 NPT x 0.27”)
(only on PE15X-XXX-XXX-ASXX )[SS] (1) Y17-50-S
144 “U” Cup (3/16” x 1-1/4” OD) [B] (2) Y186-50
175 “O” Ring (3/32” x 13/16” OD) [B] (2) Y325-114
EXTERNAL HARDWARE OPTIONS PX15X-XXX-XXX-AXXX
PX15X-XXP PX15S-XXS PX15R-XXS
Item Description Qty Part no [Mtl] Part no [Mtl] Part no [Mtl]
26 Screw (M10 x 1.5 - 6g x 30 mm) (8) 95884-1 [C] 95884 [SS] 95884 [SS]
27 Bolt (M8 x 1.25 - 6g x 40 mm)
(20) 95896-1 [C] 95896 [SS] ---- ---
(M8 x 1.25 - 6g x 50 mm)
(20) ---- --- ---- -- 96163 [SS]
29 Hex Flange Nut (M8 x 1.25
- 6h)
(20) 95879-1 [C] 95879 [SS] 95879 [SS]
MANIFOLD / FLUID CAP MATERIAL PX15X-XXX-XXX-AXXX
PX15X-XAX PX15X-XCX PX15X-YHX PX15X-XSX PX15X-YSX
Item Description Qty
Part no
[Mtl]
Part no
[Mtl]
Part no
[Mtl]
Part no
[Mtl]
Part no
[Mtl]
5Backup Washer (2)
95819-3 [C] 95819-3
[C]
95819-1
[SS]
95819-1 [
SS ]95819-1 [SS]
6Diaphragm Washer (2)
95819-3 [C] 95819-3
[C]
95819-2
[Ha]
95819-1 [
SS ]95819-1 [SS]
9Washer (2)
Y13-8-T [SS] Y13-8-T
[SS]
95993
[Ha]
Y13-8-T [
SS ]Y13-8-T [SS]
14 Screw (M14 x 2 - 6g x 45 mm) (2)
95883 [SS] 95883
[SS]
95952
[Ha]
95883 [
SS ]95883 [SS]
15 Fluid Cap (2)
95821 [A] 95953
[CI]
95949
[Ha]
95890
[SS]
95890
[SS]
60 Inlet Manifold (1)
95828-[][A] 95940-[]
[CI]
95954-
[Ha]
95900-[]
[SS]
95943-
[SS]
61 Outlet Manifold (1)
95827-[][A] 95937-[]
[CI]
95956-
[Ha]
95899-[]
[SS]
95945-
[SS]
63 Pipe Plug (1-1/2 NPT)
(2)
Y17-127 [A] Y17-57-S
[SS]
---- Y17-57-S
[SS]
----
---
(R 1-1/2)
(2)
95902-2 [A] 95902-1
[SS]
---- 95902-1
[SS]
----
---
SEAT OPTIONS PX15X-XXX-XXX-AXXX BALL OPTIONS PX15X-XXX-XXX-AXXX
“21” “22” (2” diameter)
-XXX Seat Qty [Mtl] -XXX Seat Qty [Mtl] -XXX Ball Qty [Mtl] -XXX Ball Qty [Mtl]
-AXX 95825-A (4) [SP] -GXX 95825-G (4) [B] -XAX 95826-A (4) [SP] -XTX 95826-4 (4) [T]
-CXX 95825-C (4) [H] -HXX 95891 (4) [SH] -XCX 95826-C (4) [H] -XVX 95826-3 (4) [V]
-EXX 95893 (4) [C] -LXX 95947 (4) [Ha] -XGX 95826-2 (4) [B]
-FXX 95892 (4) [A] -SXX 95877 (4) [SS] -XSX 95878 (4) [SS]
For NPTF thread models (PX15X-AXX-XXX), use“-1”
For BSP thread models (PX15X-BXX-XXX), use“-2”
Flange models
Items included in air section service kit, see page 7.
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[CI] = Cast Iron
[Co] = Copper
[E] = E.P.R.
[H] = Hytrel
[Ha] = Hastelloy-C
[K] = Kynar

PVDF
[L] = Long Life PTFE
[MSP] =MedicalGrade Santoprene
[P] = Polypropylene
[SH] = Hard Stainless Steel
[SP] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
[V] = Viton
PARTS LIST / PX15X-XXX-XXX-AXXX

Page 6 of 12 PX15X-XXX-XXX-AXXX (en)
PARTS LIST / PX15X-XXX-XXX-AXXX
DIAPHRAGM OPTIONS PX15X-XXX-XXX-AXXX
Service Kit
With Seat
Service Kit
Without Seat “7” "8" "19" (3/16” x 3-1/4” OD)
-XXX
-XXX = (Seat)
-XXX = (Ball)
-XXX= (Diaphragm)
-XX = (Ball)
-XX = (Diaphragm) Diaphragm Qty [Mtl] Diaphragm Qty [Mtl] "O" Ring Qty [Mtl]
-XXA637375-XXA 637375-XA 96166-A (2) [SP] ---- --- -- 95992 (4) [E]
-XXC637375-XXC 637375-XC 96166-C (2) [H] ---- --- -- Y327-233 (4) [V]
-XXG637375-XXG 637375-XG 96329-2 (2) [B] ---- --- -- Y325-233 (4) [B]
-XXL 637375-XXL 637375-XL 96165-L (2) [L] 96164-A (2) [SP] Y328-233 (4) [T]
-XXM 637375-XXM 637375-XM 96166-M (2) [MSP] ---- --- -- Y328-233 (4) [T]
-XXT 637375-XXT 637375-XT 96165-T (2) [T] 96164-A (2) [SP] Y328-233 (4) [T]
-XXV 637375-XXV 637375-XV 95820-3 (2) [V] ---- --- -- Y327-233 (4) [V]
CENTER SECTION OPTIONS PX15X-XXX-XXX-AXXX
PX15A-X PX15R-X PX15S-X
Item Description Qty
Part no
[Mtl]
Part no
[Mtl]
Part no
[Mtl]
28 Washer (0.406”ID x 1” OD x 0.093”) (4)
-----
--
93360-1 [
SS ]----- --
43 Ground Lug (1)
93004
[Co]
----- -- 93004
[Co]
68 Air Cap (1)
95822-3
[A]
95971-3 [
P ]95889-3 [SS]
69 Air Cap (1)
95822-4
[A]
95971-4 [
P ]95889-4 [SS]
74 Pipe Plug (1/4 - 18 NPT x 7/16”) (2)
Y17-51-S
[SS]
93832-3
[K]
Y17-51-S
[SS]
131 Screw (M10 x 1.5 - 6g x 100 mm)
(4)
95934
[C]
-----
--
96657
[SS]
(M10 x 1.5 - 6g x 110 mm)
(4)
-----
--
96056
[SS]
-----
--

180
Washer (1-1/2 NPT)
(4)
94098
[Co]
-----
--
94098
[Co]
“O” Ring (3 mm x 15 mm OD)
(8)
-----
--
96291
[B]
-----
--
195 Nut (M10 x 1.5 - 6h) (4)
93010
[SS]
94992
[SS]
93010
[SS]

PX15X-XXX-XXX-AXXX (en) Page 7 of 12
PX15X-XXX-XXX-AXXX / FLUID SECTION
NOTE: DO NOT OVERTIGHTEN FASTENERS.
LUBRICATION / SEALANTS
Apply Loctite® 242 to threads at assembly.
Apply Loctite® 271 to threads at assembly.
Apply PTFE tape to threads at assembly.
Not used with PX15X-XXX-AXX, -CXX and -GXX.
Note: Lubriplate FML-2 is a white food grade petroleum grease.
ASSEMBLY TORQUE REQUIREMENTS
Apply anti-seize compound to threads and bolt and nut flange heads
which contact pump case when using stainless steel fasteners.
Apply Lubriplate FML-2 grease to all “O” rings, “U” Cups & mating parts.
22
61 (models PX15X-AXX-XXX-AXXX
and PX15X-BXX-XXX-AXXX)
21
19 
(14) Screw, tighten to 50 - 55 ft lbs (67.8 - 74.6 Nm).
(26) Screws, 20 - 25 ft lbs (27.1 - 33.9 Nm).
(29) Nuts, 15 - 20 ft lbs (20.3 - 27.1 Nm).
(131) Screws, 12 - 17 ft lbs (16.3 - 23.0 Nm).
8
1
2
7
Torque Sequence
10
6
4
9
5
3
COLOR CODE
Diaphragm Ball
Material
Hytrel
Nitrile
Santoprene
Santoprene
(Backup)
PTFE
Viton
Cream
Black
Tan
Green
White
Yellow(-)
(-) Dash
Cream
Red(
• )
Tan
N/A
White
Yellow(
•
)
(
•
) Dot
Color Color
61 (models PX15X-YXX-XXX-AXXX)
26
26
14
9
8 Santoprene
5
6
131
28
180
1
7 PTFE
180
69
144
70
175
68
 74
27
5
8
7
6
9
29
195
15
14
60 (models PX15X-YXX-XXX-AXXX)
60 (models PX15X-AXX-XXX-AXXX
and PX15X-BXX-XXX-AXXX)
144
63 
 63
Figure 2

Page 8 of 12 PX15X-XXX-XXX-AXXX (en)
PARTS LIST / PX15X-XXX-XXX-AXXX AIR SECTION PARTS
Item
Description
Part no Qty [Mtl]
101
Center Body (PX15A-X)
97025
(1)
[A]
(PX15R-X)
97026 [P]
(PX15S-X)
97034 [SS]
103
Bushing
97392 (1) [D]
105
Screw (M6 x 1 - 6g )
(PX15A-X and PX15S-X) (16 mm long)
95991 (4) [SS]
(PX15R-X) (130 mm long)
95886 (4) [SS]
107
End Plate (PX15R-X only)
95840 (2) [SS]
111
Spool (PX15A-X and PX15S-X)
95835 (1) [D]
(PX15R-X)
96293 (1) [D]
118
Actuator Pin
95839 (2) [SS]
121
Sleeve
95123 (2) [D]
128
Pipe Plug (1/8 - 27 NPT x 0.27”)
(PX15A-X and PX15S-X only)
Y17-50-S (1) [SS]
132
Gasket 96170 (1) [B]
133
Washer (1/4”) (PX15A-X) Y117-416-C (3) [C]
(M6) (PX15R-X)
95931 (6) [SS]
(1/4”) (PX15S-X)
Y14-416-T (3) [SS]
134
Screw (M6 x 1 - 6g x 20 mm) (PX15R-X) 95887 (6) [SS]
(PX15A-X and PX15S-X)
95887 (4) [SS]
135
Valve Block (PX15A-XXX-XXX-AXXX) 95942-1 (1) [Z]
(PX15R-XXX-XXX-AXXX)
95834-1 (1) [P]
(PX15S-XXX-XXX-AXXX)
95939-1 (1) [SS]
(PE15A-XXX-XXX-ASXX)
95942-2 (1) [Z]
(PE15R-XXX-XXX-ASXX)
95834-2 (1) [P]
(PE15S-XXX-XXX-ASXX)
95939-2 (1) [SS]
136
End Cap (PX15A-X) 95941 (1) [Z]
(PX15R-X)
95833 (1) [P]
(PX15S-X)
95938 (1) [SS]
Item
Description
Part no Qty [Mtl]
137
Gasket 95844 (1) [B]
138
“U” Cup (3/16” x 1-5/8” OD) Y186-53 (1) [B]
139
“U” Cup (3/16” x 1-1/8” OD) Y186-49 (1) [B]
140 Valve Insert 95838 (1) [AO]
141 Valve Plate 95837 (1) [AO]
166
Gasket 96171 (1) [B]
167
Pilot Piston (includes 168 and 169)
67164 (1) [D]
168 “O” Ring (3/32” x 5/8” OD) 94433 (2) [U]
169 “U” Cup (1/8” x 7/8” OD) Y240-9 (1) [B]
170
Piston Sleeve
94081 (1) [D]
171
“O” Ring (3/32” x 1-1/8” OD) Y325-119 (1) [B]
172
“O” Ring (1/16” x 1-1/8” OD)
Y325-22 (1) [B]
173
“O” Ring (3/32” x 1-3/8” OD) Y325-123 (2) [B]

174
“O” Ring (1/8” x 1/2” OD) Y325-202 (2) [B]
176 Diaphragm (check valve) 95845 (2) [U]
181 Roll pin (5/32" OD x 1/2" long) Y178-52-S (4) [SS]
200
Gasket (PX15A-X and PX15S-X) 96172 (1) [B]
(PX15R-X)
95842 (1) [B]
201
Muffler (PX15R-X) 93139 (1) [P]
(PX15A-X and PX15S-X)
350-568 (1) ---
233
Adapter Plate 95832 (1) [P]
236 Nut (M6 x 1 - 6h) (PX15R-X) 95924 (4) [SS]

Lubriplate FML-2 grease 94276 (1)
Lubriplate Grease Packets (10) 637308

Fluid Section Service Kit parts, See page 5
AIR MOTOR SECTION SERVICE
Service is divided into two parts - 1. Pilot Valve, 2. Major
Valve. GENERAL REASSEMBLY NOTES:
yAir Motor Section Service is continued from Fluid Section
repair.
yInspect and replace old parts with new parts as neces-
sary. Look for deep scratches on surfaces, and nicks or
cuts in “O” rings.
yTake precautions to prevent cutting “O” rings upon instal-
lation.
yLubricate“O” rings with Lubriplate FML-2 grease.
yDo not over-tighten fasteners, refer to torque specifica-
tion block on view.
yTorque fasteners following restart.
ySERVICE TOOLS - To aid in the installation of (168) “O”
rings onto the (167) pilot piston, use tool # 204130-T,
available from ARO.
PILOT VALVE DISASSEMBLY
1. A light tapping 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.
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. Install new (168) “O” rings and (169) seal - NOTE: The lip
direction. Lubricate and replace (167).
4. Reassemble remaining parts, replace (173 and 174) “O”
rings.
MAJOR VALVE DISASSEMBLY
1. Remove (135) valve block and (233) adapter plate, expos-
ing (132 and 166) gaskets and (176) check valve.
2. Insert asmall at blade screwdriver into the notch in the
side of (135) valve block and push in on tab to remove
(233) adapter plate, releasing (140) valve insert, (141)
valve plate and (200) gasket.
3. Remove (136) end cap and (137) gasket, releasing (111)
spool.
MAJOR VALVE REASSEMBLY
1. Install new (138 and 139) “U” cups on (111) spool - LIPS
MUST FACE EACH OTHER.
2. Insert (111) spool into (135) valve block.
3. Install (137) gasket on (136) end cap and assemble end
cap to (135) valve block, securing with (107) end plates
and (105) screws.
4. Install (140) valve insert and (141) valve plate into (135)
valve block. NOTE: Assemble (140) valve insert with
“dished” side toward (141) valve plate. Assemble (141)
valve plate with part number identication toward (140)
Indicates parts included in 637389 air section service kit.

PX15X-XXX-XXX-AXXX (en) Page 9 of 12
valve insert.
5. Assemble (200) gasket and (233) adapter plate to (135)
valve block. NOTE: Assemble (233) adapter plate with
notched side down.
6. Assemble (132 and 166) gaskets and (176) check valve to
(101) body.
7. Assemble (135) valve block and components to (101)
body, securing with (134) screws.
PX15X-XXX-XXX-AXXX / AIR SECTION
PILOT VALVE
PARTS GROUP
MAJOR VALVE
GROUP
NOTE: DO NOT OVERTIGHTEN FASTENERS.
PX15A-XXX-XXX and PX15S-XXX-XXX: Torque (105 and 134)
screws to 40 -50 in. lbs (4.5 - 5.6 Nm).
PX15R-XXX-XXX: Torque (134) screw to 35 - 40 in. lbs (4.0 - 4.5 Nm)
and (236) nut to 35 - 40 in. lbs (4.0 - 4.5 Nm).
LUBRICATION / SEALANTS
ASSEMBLY TORQUE REQUIREMENTS
Apply Lubriplate FML-2 grease to “O” rings, “U” Cups &
mating parts.
Apply anti-seize compound to threads at assembly.
Apply PTFE tape to threads at assembly.
233
166
201
201
181
Notch
200
141
140
138
103 174
118
121
173
176
132
118
121
174
111
139
137
136
107 105
MAJOR VALVE
GROUP
138
111
139
137
135
236
105
134
133
134
134
133
76
Insert screwdriver here to remove(233) adapterplate.
A replacement Major Valve Service Assembly is available separately, which includes the following:
637390-1 for models PD15R-XXX-XXX: 105 (4), 107 (2), 111, 132, 135, 136, 137, 138, 139, 140,
141, 166, 176 (2), 200, 233 and 236 (4).
637390-2 for models PE15R-XXX-XXX:76,105(4),107(2),111,132,135,136,137,138,139,140,
141, 166, 176 (2), 200, 233 and 236 (4).
637390-3 for models PD15A-XXX-XXX: 105 (4), 111, 128, 132, 135, 136, 137, 138, 139, 140, 141,
166, 176 (2), 200 and 233.
637390-4 for models PE15A-XXX-XXX: 76, 105 (4), 111, 128, 132, 135, 136, 137, 138, 139, 140,
141, 166, 176 (2), 200 and 233.
637390-5 for models PD15S-XXX-XXX: 105 (4), 111, 128, 132, 135, 136, 137, 138, 139, 140, 141,
166, 176 (2), 200 and 233.
637390-6 for models PE15S-XXX-XXX: 76, 105 (4), 111, 128, 132, 135, 136, 137, 138, 139, 140,
141, 166, 176 (2), 200 and 233.
107
135
167
173
168
169
170
171
172
101
Models PX15R-XXX-XXX
Models PX15A-XXX-XXX
PX15S-XXX-XXX
43
128
136
Figure 3
MATERIAL CODE
[A] Aluminum [GP] = Groundable Polypropylene
[AO] = Alumina Oxide [P] = Polypropylene
[B] = Nitrile [SP] = Santoprene
[Br] = Brass [SS] = Stainless Steel
[C] = Carbon Steel [U] = Polyurethane
[D] = Acetal [Z] = Zinc

Page 10 of 12 PX15X-XXX-XXX-AXXX (en)
TROUBLE SHOOTING
Product discharged from air exhaust.
yCheck for diaphragm rupture.
yCheck tightness of (14) diaphragm screw.
Air bubbles in product discharge.
yCheck connections of suction plumbing.
yCheck “O” rings between intake manifold and inlet side
uid caps.
yCheck tightness of (14) diaphragm screw.
Motor blows air or stalls.
yCheck (176) check valve for damage or wear.
yCheck for restrictions in valve / exhaust.
Low output volume.
yCheck air supply.
yCheck for plugged outlet hose.
yCheck for kinked (restrictive) outlet material hose.
yCheck for kinked (restrictive) or collapsed inlet material
hose.
yCheck for pump cavitation - suction pipe should be sized
at least as large as the inlet thread diameter of the pump
for proper ow if high viscosity uids are being pumped.
Suction hose must be a non-collapsing type, capable of
pulling a high vacuum.
yCheck all joints on the inlet manifolds and suction con-
nections. These must be air tight.
yInspect the pump for solid objects lodged in the dia-
phragm chamber or the seat area.
DIMENSIONAL DATA
Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
Inlet
Outlet
C
L
B
D
K
C
A
P
Q
D
N
B
G
MSH
R
L
J
L
F
E
“S”
T
1-1/2 - 11-1/2 NPTF - 1(PX15X-AXX-XXX)
Rp 1-1/2 (1-1/2 - 11 BSP) (PX15X-BXX-XXX)
PX15X-XAX-XXX
PX15X-XCX-XXX
PX15X-XHX-XXX
PX15X-ASX-XXX, -BSX
PX15X-YSX-XXX
A - see below
B - 18-3/8” (466.7 mm)
C - 11-3/4” (298.5 mm)
D - 2-3/4” (69.9 mm)
E - see below
PX15A-XXX-XXX
PX15R-XXX-XXX
PX15S-XXX-XXX
14-7/8” (377.8 mm)
14-5/8” (371.5 mm)
14-9/16” (370.0 mm)
14-25/32” (375.5 mm)
14-9/16” (370.0 mm)
1-3/4” (44.5 mm)
1-3/4” (44.5 mm)
3-1/8” (79.4 mm)
1-3/4” (44.5 mm)
3-1/8” (79.4 mm)
7-7/32” (183.4 mm)
7-3/16” (182.6 mm)
7-3/16” (182.6 mm)
7-9/32” (185.0 mm)
7-9/32” (185.0 mm)
14-23/32” (373.9 mm)
14-1/2” (368.3 mm)
14-1/2” (368.3 mm)
14-13/16” (375.5 mm)
14-9/16” (370.0 mm)
1/2” (12.7 mm)
1/4” (6.4 mm)
1/4” (6.4 mm)
15/32” (11.4 mm)
15/32” (11.4 mm)
N / A
11-3/32” (281.3 mm)
N / A
14-1/32” (356.2 mm)
N / A
13-7/8” (352.4 mm)
F - 10-1/4” (260.4 mm)
G - 19-5/8” (498.1 mm)
H - 9” (228.6 mm)
J - 10” (254.0 mm)
K - 1/2” (12.7 mm)
L - see below
M - 1/4” (6.4 mm)
N - 9-11/16” (246.0 mm)
P - see below
Q - see below
R - 21-7/16” (543.9 mm)
S - see below
T - see below
1-1/2” ANSI / DIN Flange
(PX15X-YXX-XXX)
Air Inlet 1/2 - 14 NPT
1-1/2 - 11-1/2 NPTF - 1
(PX15X-AXX-XXX)
Rp 1-1/2 (1-1/2 - 11 BSP) (PX15X-BXX-XXX)
Exhaust Port 3/4 - 14 NPT
DIMENSIONS
“Q”“P”“L”“A”
“T”“E”
Figure 4

PX15X-XXX-XXX-AXXX (en) Page 11 of 12

Page 12 of 12 PX15X-XXX-XXX-AXXX (en)
PN 97999-1056