Ingersoll-Rand ARO PX30R Series User manual

3" DIAPHRAGM PUMP
1:1 RATIO (METALLIC)
OPERATOR’S MANUAL PX30R-XXX-XXX-CXXX
INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE RELEASED: 2-4-05
REVISED: 10-27-17
(REV: N)
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.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
[phone] FAX [phone] © 2017 CCN 15227655
arozone.com
SERVICE KITS
Refer to Model Description Chart to match the pump material options.
637303-XXX for Fluid Section repair with seats (see page 5).
637303-XX for Fluid Section repair without seats (see page 5).
NOTE: This kit also contains several air motor seals which will need
to be replaced.
637369 for Air Section repair (see page 7).
637374-X Major Air Valve assembly (see page 8).
PUMP DATA
Models................. see Model Description Chart for“-XXX”
Pump Type............. Metallic Air Operated Double Diaphragm
Material................ see Model Description Chart
Weight .. PX30R-XCX-XXX-CXXX ........ 221.1 lbs (100.3 kgs)
PX30R-ASX-XXX-CXXX, -BSX .. 228.8 lbs (103.8 kgs)
PD30R-FSX-XXX-CXXX, -DSX .. 245.6 lbs (111.4 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 ................... 237 gpm (897 lpm)
ooded inlet ........... 275 gpm (1041 lpm)
Displacement / Cycle @ 100 psig....... 2.8 gal. (10.6 lit.)
Maximum Particle Size ................ 3/8” dia. (9.5 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)
Kynar® PVDF ................... 10° to 200° F (-12° to 93° C)
Nitrile .......................... 10° to 180° F (-12° to 82° C)
Polypropylene. . . . . . . . . . . . . . . . . . 35° to 175° F (2° 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 .. 10-5/32” x 12-1/16” (258 mm x 306 mm)
Noise Level @ 70 psig, 50 cpm

........ 83.0 dB(A)


Tested with 67263 muer assembly installed.

The pump sound pressure levels published here have been updated to
an Equivalent Continuous Sound Level (L
Aeq
) to meet the intent of ANSI
S1.13-1971, CAGI-PNEUROP S5.1 using four microphone locations.
MODEL PD30R
MODEL PE30R
Figure 1

Page 2 of 12 PX30R-XXX-XXX-CXXX (en)
MODEL DESCRIPTION CHART
Model Code Explanation
Example: PX30 R -XXX-XXX-CXXX
Model Series
PD30- Standard Pump
PE30- Electronic Interface
Air Motor / Air Cap Material
R - Polypropylene / Stainless Steel
Fluid Connection
B - Rp 3 (3 - 11 BSP Parallel)
Fluid Caps and Manifold Material
Hardware Material
P -Carbon Steel
Seat Material
Ball Material
Diaphragm Material
Revision
C - 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 220VAC 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 / IECEx / NEC / CEC
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.
H - End of Stroke + Leak Detection ATEX / IECEx / NEC / CEC
L - Leak Detection
M -
Leak Detection ATEX / IECEx / NEC / CEC
E - Solenoid 12 VDC NEC / CEC
F - Solenoid 24 VDC NEC / CEC
J - Solenoid 120 VAC NEC / CEC
A -3- 8 NPTF - 1
0 - Standard Valve Block (No Solenoid)
S - Cycle Sensing on Major Valve
T - End of Stroke NEC / Leak Detection NEC
0 - No Option
Specialty Code 2 (Blank if no Speciality Code)
A -Santoprene
C - Hytrel
E -Carbon Steel
F - Aluminum
G - Nitrile
H - Hard 440 Stainless Steel
L - Hastelloy - C
S - 316 Stainless Steel
A -Santoprene
C - Hytrel
G - Nitrile
T - PTFE
V -Viton
C -Cast Iron
S - Stainless Steel
S - Stainless Steel
A -Santoprene
C - Hytrel
G - Nitrile
L - Long Life PTFE
B -Santoprene (Backer)
T - PTFE / Santoprene
V -Viton
D - 3“ ANSI Flange (4-holes)
K -Kynar PVDF
F - 3“ DIN Flange (8-holes)

PX30R-XXX-XXX-CXXX (en) Page 3 of 12
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 uid 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.
yUse the pump grounding screw terminal provided. Use ARO®
part no. 66885-1 ground kit or connect a suitable ground wire
(12 ga. min.) to a good earth ground source.
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 specif-
ic grounding requirements.
yAfter grounding, periodically verify continuity of electrical
path to ground. Test with an ohmmeter from each compo-
nent (e.g., hoses, pump, clamps, container, 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
Pump 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 muer.
yPipe the exhaust to a safe remote location when pumping
hazardous or inammable materials.
yUse a grounded 1” minimum i.d. hose between the pump
and the muer.
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 in-
jury 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.
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
yObtain Material Safety Data Sheets on all materials from
the supplier for proper handling instructions.
WARNING
EXPLOSION HAZARD. Models containing alu-
minum parts cannot be used with 1,1,1-trichloroethane,
methylene chloride or other halogenated hydrocarbon sol-
vents which may react and explode.
yCheck pump motor section, fluid caps, manifolds and all
wetted parts to assure compatibility before using with sol-
vents 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, ushed or
recirculated. Chemical compatibility may change with tem-
perature and concentration of the chemical(s) within the
substances being pumped, ushed or circulated. For specif-
ic uid compatibility, consult the chemical manufacturer.
CAUTION
Maximum temperatures are based on mechan-
ical stress only. Certain chemicals will signicantly reduce
maximum safe operating temperature. Consult the chemi-
cal manufacturer for chemical compatibility and tempera-
ture 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 re-
quired.
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 flexible
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 as-
sure compatible pressure rating and longest service life.
NOTICE
Replacement warning labels are available upon
request: “Static Spark & Diaphragm Rupture” pn \ 94080.
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.
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE

Page 4 of 12 PX30R-XXX-XXX-CXXX (en)
MAINTENANCE
Refer to the part views and descriptions as provided on pages 5
through 8 for parts identication and service kit information.
yCertain ARO “Smart Parts” are indicated which should be avail-
able for fast repair and reduction of down time.
yService kits are divided to service two separate diaphragm
pump functions: 1. AIR SECTION, 2. FLUID SECTION. The Fluid
Section is divided further to match typical part Material Op-
tions.
yProvide a clean work surface to protect sensitive internal mov-
ing parts from contamination from dirt and foreign matter
during service disassembly and reassembly.
yKeep good records of service activity and include the 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 (if applicable) and (21) seats.
3. Remove (15) uid caps.
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.
4. Remove the (14) screw, (6) diaphragm washer, (7) or (7 / 8) dia-
phragms, (5) backup washer and (196) cushion.
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.
FLUID SECTION REASSEMBLY
SERVICE NOTE: ARO pn 204214-T diaphragm assembly tool is rec-
ommended for use when reassembling the pump.
yReassemble in reverse order. Refer to the torque requirements
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” cups with Lubriplate®
FML-2 grease (94276 grease packet is included in service kit).
yBe certain the diaphragm assembly bottoms out on the (1) rod,
back o PTFE diaphragm assembly far enough to align holes.
yFor models with PTFE diaphragms: Item (8) Santoprene dia-
phragm is installed with the side marked “AIR SIDE” towards the
pump center body. Install the (7) PTFE diaphragm with the side
marked “FLUID SIDE”towards the (15) uid cap.
yRe-check torque settings after the pump has been re-started
and run a while.
GENERAL DESCRIPTION
The ARO diaphragm pump oers high volume delivery even at low
air pressure and a broad range of material compatibility options are
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eren-
tial in the air chambers to alternately create suction and a positive
uid pressure in the uid chambers, valve checks insure a positive
ow of uid.
Pump cycling will begin as air pressure is applied and will continue
to pump and keep up with the demand. It will build and maintain
line pressure and will stop cycling once maximum 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 lter capable of ltering out particles larger than 50 microns
should be used on the air supply. There is no lubrication re-
quired other than the “O” ring lubricant which is applied 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.
OPERATING INSTRUCTIONS
yAlways ush the pump with a solvent compatible with the ma-
terial 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 inactive
for a few hours.
yThe outlet material volume is governed not only by the air sup-
ply, 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.
yWhen the diaphragm pump is used in a forced-feed (ooded
inlet) situation, it is recommended that a “check valve” be in-
stalled at the air inlet.
ySecure the diaphragm pump legs to a suitable surface to insure
against damage by vibration.
yHytrel® and Viton® are registered trademarks of the DuPont Company yLoctite® is a registered trademark of Henkel Loctite Corporation yKynar® is a registered trademark of Arkema Inc. y
ySantoprene® is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. yARO® is a registered trademark of Ingersoll-Rand Company y
yLubriplate® is a registered trademark of Lubriplate Division (Fiske Brothers Rening Company) y262™, 271™ and 572™ are trademarks of Henkel Loctite Corporation y
yHastelloy® is a registered trademark of Haynes International, Inc. y

PX30R-XXX-XXX-CXXX (en) Page 5 of 12
PARTS LIST / PX30R-XXX-XXX-CXXX FLUID SECTION
FLUID SECTION SERVICE KITS (637303 -XXX or 637303 -XX)

For Fluid Kits With Seats:
637303-XXX Fluid Section Service Kits include: 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 below), and items: 3, 19, 70, 144, 175 and 196 (listed below) plus 174 and 94276 Lubriplate
FML-2 grease (page 6).

For Fluid Kits Without Seats:
637303-XX Fluid Section Service Kits include: Balls (see BALL Option, refer to -XX in chart below), Diaphragms (see DIAPHRAGM Option, refer to -XX in chart
below), and items: 3, 19, 70, 144, 175 and 196 (listed below) plus 174 and 94276 Lubriplate FML-2 grease (page 6).
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
[CI] = Cast Iron
[E] = E.P.R.
[H] = Hytrel
[Ha] = Hastelloy - C
[K] = Kynar PVDF
[L] = Long Life PTFE
[SH] = Hard Stainless Steel
[Sp] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
[V] = Viton

Air motor kit parts, see pages 7 and 8.

“Smart Parts“, keep these items on hand in addition to the service kits for fast
repair and reduction of down time.
SEAT OPTIONS PX30R-XXX-XXX-CXXX BALL OPTIONS PX30R-XXX-XXX-CXXX

“21”

“22” (3-1/4” diameter)

“19” (3/16” x 5” o.d.)
-XXX Seat Qty Mtl -XXX Seat Qty Mtl -XXX Ball Qty Mtl “O” Ring Qty Mtl
-AXX 94104-A (4) [Sp] -HXX 94114 (4) [SH] -XAX 94103-A (4) [Sp] 94115 (4) [E]
-CXX 94104-C (4) [H] -KXX 94621-K (4) [K] -XCX 94103-C (4) [H] Y327-350 (4) [V]
-EXX 95678 (4) [C] -LXX 94939 (4) [Ha] -XGX 94103-G (4) [B] Y325-350 (4) [B]
-FXX 95674 (4) [A] -SXX 94113 (4) [SS] -XTX 94103-T (4) [T] Y328-350 (4) [T]
-GXX 94104-G (4) [B] -XVX 94103-V (4) [V] Y327-350 (4) [V]
DIAPHRAGM OPTIONS PX30R-XXX-XXX-CXXX

Service Kits
With Seats
-XXX = (Seat)
-XXX = (Ball)
-XXX = (Diaphragm)

Service kits
Without Seats
-XX = (Ball)
-XX = (Diaphragm)

“7”

“8”

“3” (1/8” x 1” o.d.)
-XXX Diaphragm Qty Mtl Diaphragm Qty Mtl “O” Ring Qty Mtl
-XXA 637303-XXA 637303-XA 94091-A (2) [Sp] - - - - - - - - - - - Y328-210 (2) [T]
-XXB 637303-XXB 637303-XB 94110-A (2) [Sp] - - - - - - - - - - - Y328-210 (2) [T]
-XXC 637303-XXC 637303-XC 94091-C (2) [H] - - - - - - - - - - - Y327-210 (2) [V]
-XXG 637303-XXG 637303-XG 96016-2 (2) [B] - - - - - - - - - - - Y328-210 (2) [T]
-XXL 637303-XXL 637303-XL 94090-L (2) [L] 94110-A (2) [Sp] Y328-210 (2) [T]
-XXT 637303-XXT 637303-XT 94090-T (2) [T] 94110-A (2) [Sp] Y328-210 (2) [T]
-XXV 637303-XXV 637303-XV 95345 (2) [V] - - - - - - - - - - - Y327-210 (2) [V]
NOTE: Seat options -AXX, -CXX and -GXX do not require item 19 "O" ring.
MANIFOLD THREAD / FLUID CAP MATERIAL OPTIONS PX30R-XXX-XXX-CXXX
Cast Iron Stainless Steel
PX30R-ACX-XXX-C PX30R-BCX-XXX-C PX30R-ASX-XXX-C PX30R-BSX-XXX-C PX30X-DSX-XXX-C PX30R-FSX-XXX-C
NPTF BSP NPTF BSP
Item Description (size) Qty Part No. Mtl Part No. Mtl Part No. Mtl Part No. Mtl Part No. Mtl Part No. Mtl
15 Fluid Cap (2) 94106 [CI] 94106 [CI] 94107 [SS] 94107 [SS] 94107 [SS] 94107 [SS]
60 Inlet Manifold (1) 97215 -1 [CI] 97215 -2 [CI] 97212-1 [SS] 97212-2 [SS] 97416 [SS] 97213 [SS]
61 Outlet Manifold (1) 94702-1 [CI] 94702-2 [CI] 94704-1 [SS] 94704-2 [SS] 97417 [SS] 96784 [SS]
EXTERNAL HARDWARE OPTION PX30R-XXX-XXX-CXXX
PX30R-XXP-XXX-C PX30R-XXS-XXX-C
Item Description (size) Qty Part No. Mtl Part No. Mtl
26 Screw (M12 x 1.75 - 6g x 45 mm) (12) 94412-1 [C] 94412-2 [SS]
27 Screw (M12 x 1.75 - 6g x 60 mm) (16) 94991-1 [C] 94991 [SS]
29 Nut (M12 x 1.75 - 6h) (16) 95053-1 [C] 95053 [SS]
COMMON PARTS
Item Description (size) Qty Part No. Mtl

1 Rod (1) 97387 [C]
5Backup Washer (2) 94831-2 [SS]
6Fluid Side Washer (2) 94803 [SS]
9 Washer (3/16” i.d. x 2” o.d. x 5/32”) (2) Y13-12-T [SS]
14 Cap Screw (3/4” - 16 x 3-1/4”) (2) Y5-134-T [SS]
68 Air Cap (1) 94031-1 [SS]
69 Air Cap (1) 94031-2 [SS]

70 Gasket (2) 94100 [B]
Item Description (size) Qty Part No. Mtl
74 Pipe Plug (1/4 - 18 N.P.T. x 7/16”) (2) Y17-51-S [SS]
126 Plug (1) 93897-1 [SS]
131 Screw (M10 x 1.5 - 6g x 120 mm) (4) 96656 [SS]

144 “U” Cup (3/16” x 1-3/8” o.d.)(2) Y186-51 [B]

175 “O” Ring (3/32” x 1” o.d.) (2) Y325-117 [B]

180 Gasket (0.406” i.d. x 0.031” thick) (4) 94098 [Co]
181 Roll Pin (5/32” o.d. x 3/4” long) (4) Y178-56-S [SS]

196 Cushion (2) 94631 [Sp]

Page 6 of 12 PX30R-XXX-XXX-CXXX (en)
COLOR CODE
Material Diaphragm
Color
Ball
Color
Hytrel CreamCream
Nitrile Black Red (•)
Santoprene TanTan
Santoprene
(Backup)
Green N/A
PTFEWhiteWhite
VitonYellow (-) Yellow (•)
(•) Dot(-) Stripe
FOR THE
AIR MOTOR SECTION
SEE PAGE 7 AND 8.
26

61
61 [PX30X-FXX-XXX-CXXX (8-Holes)]
[PX30X-AXX-XXX-CXXX]
[PX30X-BXX-XXX-CXXX]
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(14) Cap screw, 65 - 70 ft lbs (88.1 - 94.9 Nm).
LUBRICATION / SEALANTS
ASSEMBLY TORQUE REQUIREMENTS
Apply Loctite 271 to threads at assembly.
Apply Lubriplate FML-2 grease to all “O” rings, “U” Cups and mating parts.
(26) Screw, 60 - 70 ft lbs (81.3 - 94.9 Nm).
(27) Screw, 60 - 70 ft lbs (88.1 - 94.9 Nm).
Apply anti-seize compound to threads and bolt and nut ange
heads which contact pump case when using stainless steel fasteners.
Apply Loctite 262 to threads at assembly.
Apply Loctite 572 to threads.
Note: Lubriplate FML-2 is a white food grade petroleum grease.
(131) Screw, 35 - 40 ft lbs (47.5 - 54.2 Nm).
Not used with PX30R-XXX-AXX-CXXX, -CXX and -GXX
Apply PTFE tape to threads.
View for PX30R-XXX-XXT-CXXX (PTFE diaphragm)/
PX30R-XXX-XXL-CXXX (Long Life PTFE diaphragm)
conguration.
(Santoprene)
8
(PTFE)
7
22
19
 
21
22
 
19
21
60
26

60
1

6
7
8
9
3


14
180

131
15
196
5
27

69
29

70

70


175

175
144

144

126
68
181
74

Torque Sequence
3
2
7
5
1
8
6
4
61 [PX30X-DXX-XXX-CXXX (4-holes)]
[PX30X-FXX-XXX-CXXX (8-holes)]
[PX30X-AXX-XXX-CXXX]
[PX30X-BXX-XXX-CXXX]
60 [PX30X-DXX-XXX-CXXX (4-holes)]
PARTS LIST / PX30R-XXX-XXX-CXXX FLUID SECTION
Figure 2

PX30R-XXX-XXX-CXXX (en) Page 7 of 12
MATERIAL CODE
[B] = Nitrile [I] = Iron
[Br] = Brass [P] = Polypropylene
[C] = Carbon Steel [Sp] = Santoprene
[Ck] = Ceramic [SS] = Stainless Steel
[D] = Acetal [U] = Polyurethane
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 necessary. Look
for deep scratches on metallic surfaces, and nicks or cuts in “O”
rings.
yTake precautions to prevent cutting “O” rings upon installation.
yLubricate“O” rings with Lubriplate FML-2 grease.
yDo not over-tighten fasteners. Refer to torque specication
block on view.
yRe-torque 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 tap on (118) actuator pin 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) pilot piston.
4. Reassemble remaining parts. Replace (173 and 174) “O”rings.
MAJOR VALVE DISASSEMBLY
1. Remove (135) valve block and (233) adapter plate, exposing
(132 and 166) gaskets, (232) “O” ring and (176) checks.
2. Remove (233) adapter plate, releasing (140) valve insert, (141)
valve plate, (199 and 200) gaskets and (232, 243 and 244) “O”
rings.
3. Remove (136) end cap and (137)“O” ring, 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) “O” ring 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 to-
ward (141) valve plate. Assemble (141) valve plate with 2 iden-
tication dots toward (199 and 200) gaskets.
5. Assemble (232, 243 and 244) “O” rings, (199 and 200) gaskets
and (233) adapter plate to (135) valve block.
6. Assemble (132 and 166) gaskets, (176) checks and (232)“O” ring
to (101) center body.
7. Assemble (135) valve block and components to (101) center
body, securing with (134) screws.
PARTS LIST / PX30R-XXX-XXX-CXXX AIR MOTOR SECTION
AIR MOTOR PARTS
Item Description (size) Qty Part No. Mtl
76 Pipe Plug (1/8 -27 N.P.T x 0.27”)
(PE30X-XXX-XXX-CSXX) (1) Y17-50-S [SS]
101 Center Body (1) 97037 [P]
103 Bushing (1) 97394 [D]
105 Screw (M6 x 1 - 6g x 180 mm) (4) 95921 [SS]
107 End Plate (2) 95846 [SS]
111 Spool (1) 95651 [D]
118 Actuator Pin (0.250” x 2.276” long) (2) 94083 [SS]
121 Sleeve (2) 94084 [D]
127 90° St. Elbow (1-1/2 - 11-1/2 N.P.T.) (1) 94860 [C / I]

132 Gasket (1) 94099 [B]
133 Washer (M6) (8) 95931 [SS]
134 Screw (M6 x 1 - 6g x 35 mm) (8) 95923 [SS]
135 Valve Block (PD30R-XXX-XXX-CXXX) (1) 95789 [P]
(PE30R-XXX-XXX-CSXX) (1) 95789-1 [P]
136 End Cap (1) 95790 [P]

137 “O” Ring (1/16” x 2” o.d.) (1) Y325-32 [B]

138 “U” Cup (3/16” x 1.792” o.d.) (1) 95966 [B]

139 “U” Cup (3/16” x 1-1/4” o.d.) (1) Y186-50 [B]
140 Valve Insert (1) 95650 [Ck]
141 Valve Plate (1) 95659 [Ck]

166 Track Gasket (1) 94026 [B]
Item Description (size) Qty Part No. Mtl

167 Pilot Piston (includes 168 and 169) (1) 67164 [D]
168 "O” Ring (3/32” x 5/8” o.d.) (2) 94433 [U]
169 “U” Cup (1/8” x 7/8” o.d.) (1) Y240-9 [B]
170 Piston Sleeve (1) 94081 [D]

171 “O” Ring (3/32” x 1-1/8” o.d.) (1) Y325-119 [B]

172 “O” Ring (1/16” x 1-1/8” o.d.) (1) Y325-22 [B]

173 “O” Ring (1/16” x 1-3/8” o.d.) (2) Y325-26 [B]
 
174 “O” Ring (1/8” x 1/2” o.d.) (2) Y325-202 [B]

176 Diaphragm (check valve) (2) 94102 [Sp]

199 Track Gasket (1) 95666 [B]

200 Gasket (1) 95665 [B]
201 Muer Kit (includes item 127) (1) 67213

232 “O” Ring (1/8” x 1/2” o.d.) (2) Y325-202 [B]
233 Adapter Plate (1) 95761 [P]
236 Nut (M6 x 1 - 6h) (4) 95924 [SS]

243 “O” Ring (1/8” x 5/8” o.d.) (1) Y325-204 [B]

244 “O” Ring (1/8” x 7/8” o.d.) (1) Y325-208 [B]

Lubriplate FML-2 grease (1) 94276
Lubriplate Grease Packets (10) 637308

Items included in uid section service kit, see pages 5 and 6.

Indicates parts included in 637369 air section service kit shown below and items (70), (144), (175) and (180) shown on page 5.

Page 8 of 12 PX30R-XXX-XXX-CXXX (en)
PARTS LIST / PX30R-XXX-XXX-CXXX AIR MOTOR SECTION
Figure 3
(105) Screw, 35 - 40 in. Lbs (4.0 - 4.5 Nm).
(134) Screw, 35 - 40 in. Lbs (4.0 - 4.5 Nm).
200
107
105
135
133
138
134
136
236
107
111
139
137 
PILOT VALVE
PILOT VALVE
MAJOR VALVE
201
127
174
121
118
173
101
103
 174
121
118
167
170
 173
171 
172
169168
132
232
232
199
141
140
176
166
233
243
244
Optional 94117 Muer
NOTE: DO NOT OVERTIGHTEN FASTENERS.
LUBRICATION / SEALANTS
ASSEMBLY TORQUE REQUIREMENTS
Apply Loctite 572 to threads.
Apply Lubriplate FML-2 grease to all “O” rings, “U” Cups and mating parts.
A replacement major valve service assembly is available separately, which includes the following:
637374 for models PD30R-XXX-XXX-CXXX: 105 (4), 107 (2), 111, 132, 135, 136, 137, 138, 139, 140, 141, 166, 176 (2), 199, 200, 232 (2), 233, 236 (4), 243
637374-1 for models PE30R-XXX-XXX-CXXX: 76, 105 (4), 107 (2), 111, 132, 135, 136, 137, 138, 139, 140, 141, 166, 176 (2), 199, 200, 232 (2), 233, 236 (4),
243 and 244.
and 244.

76
(PE30R-XXX-XXX-CSXX)

PX30R-XXX-XXX-CXXX (en) Page 9 of 12
PX30X-XAX-XXX-CXXX 23-5/8” (600.1 mm) 2-3/8” (60.3 mm) 11” (279.4 mm) 15-1/2” (393.7 mm)
PX30X-XCX-XXX-CXXX 23-5/8” (600.1 mm) 2-7/16” (61.9 mm) 11-11/16” (296.9 mm) 15-1/2” (393.7 mm)
PX30X-XHX-XXX-CXXX 23-1/8” (587.4 mm) 2-3/4” (69.9 mm) 11-11/16” (296.9 mm) 16” (406.4 mm)
PX30X-XSX-XXX-CXXX 23-1/8” (587.4 mm) 2-3/4” (69.9 mm) 11-11/16” (296.9 mm) 16” (406.4 mm)
PX30X-DXX-XXX-CXXX 23-1/8” (587.4 mm) 2-3/4” (69.9 mm) 11-11/16” (296.9 mm) 16” (406.4 mm)
PX30X-FXX-XXX-CXXX 23-1/8” (587.4 mm) 2-3/4” (69.9 mm) 11-11/16” (296.9 mm) 16” (406.4 mm)
“A”“D” “J”“N”
“L”“G”
2-3/4” (69.9 mm) 32” (812.8 mm)
2-3/4” (69.9 mm) 32” (812.8 mm)
2-3/4” (69.9 mm) 32” (812.8 mm)
2-3/4” (69.9 mm) 32” (812.8 mm)
3-3/4” (95.25 mm) 33-15/16”(862.0 mm)
3-3/4” (95.25 mm) 33-15/16”(862.0 mm)
Inlet
Outlet
A
E
F
G
L
L
G
P
M
J
H
K
C
Air Inlet Ports
3/4 - 14 NPTF -1
PX30X-FXX-XXX-CXXX
Flange Dimensions per
ISO 7005-1:1992 PN10 DN80
PX30X-DXX-XXX-CXXX
Flange Dimensions per ASME
B16.5-2003 Class 150 3 Inch
D
D
N
B
B
Dotted lines show
optional 67263 muer
assembly.
Exhaust Port1
1/2 - 11-1/2 NPT
3 - 8 NPTF- 1 (PX30X-AXX-XXX-CXXX)
Rp 3 (3 - 11 BSP parallel) (PX30X-BXX-XXX-CXXX)
D
B
TROUBLE SHOOTING
Product discharged from exhaust outlet.
yCheck for diaphragm rupture.
yCheck tightness of (14) cap screw.
Air bubbles in product discharge.
yCheck connections of suction plumbing.
yCheck “O”rings between intake manifold and uid caps.
yCheck tightness of (14) cap screw.
Motor blows air or stalls.
yCheck (176) check valve for damage or wear.
yCheck for restrictions in valve / exhaust.
Low output volume, erratic ow or no ow.
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
volume.
yCheck all joints on the inlet manifolds and suction connections.
These must be air tight.
yInspect the pump for solid objects lodged in the diaphragm
chamber or the seat area.
DIMENSIONAL DATA
Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
Figure 4
DIMENSIONS
A - see below
B - 30” (762.0 mm)
C - 12-1/16” (306.4 mm)
D - see below
E - 17-11/16” (449.2 mm)
F - 15” (381.0 mm)
G - 32” (812.8 mm)
H - 10-5/32” (258.0 mm)
J - see below
K - 9/16” (14.3 mm)
L - see below
M - 23-3/32” (586.3 mm)
N - see belo
P - 1-3/16” (30.2mm)

Page 10 of 12 PX30R-XXX-XXX-CXXX (en)

PX30R-XXX-XXX-CXXX (en) Page 11 of 12

Page 12 of 12 PX30R-XXX-XXX-CXXX (en)
PN 97999-1111