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OPERATOR'S MANUAL
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
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.
67089-X major air valve assembly (see page 7).
637302 for air section repair (see page 6).
637309-XXX for fluid section repair with seats (see page 4).
637309-XX for fluid section repair without seats (see page 4).
NOTE: This kit also contains several air motor seals which will
need to be replaced.
PUMP DATA
Models . . . . . . see Model Description Chart for "-XXX".
Pump Type . . . Metallic Air Operated Double Diaphragm
Material . . . . . see Model Description Chart.
Weight
PD20A-XAX-XXX . . . . . . . . . . . . . . . . 64 lbs (29 kgs)
PD20A-XCX-XXX . . . . . . . . . . . . . . . . . 133 lbs (60 kgs)
PD20A-AHX-XXX, -BHX-. . . . . . . . . . 122 lbs (55.3 kgs)
PD20A-ASX-XXX, -BSX- . . . . . . . . . . 122 lbs (55.3 kgs)
PD20A-FHX-XXX, -FSX- . . . . . . . . . . 114 lbs (51.7 kgs)
(add 34 lbs [15.4 kgs] for Stainless steel air motor section)
Maximum Air Inlet Pressure
Ball check models . . . . . . . . . . . . . . . 120 psig (8.3 bar)
Maximum Material Inlet Pressure . . 10 psig (0.69 bar)
Maximum Outlet Pressure
Ball check models . . . . . . . . . . . . . . . 120 psig (8.3 bar)
Maximum Flow Rate
(flooded inlet)
Ball check models . . . . . . . . . . . . . . . . . . . . . . . 170 gpm (644 lpm)
Displacement / Cycle @ 100 psig . . . 1.4 gal. (5.3 lit.)
Maximum Particle Size
Ball check models . . . . . . . . . . . . . . . 1/4" dia. (6.4 mm)
Maximum Temperature Limits (diaphragm / ball / seal material)
E.P.R. / EPDM . . . . . . . . . . . . . . -60
Hytrel
. . . . . . . . . . . . . . . . . . . -20
Neoprene . . . . . . . . . . . . . . . . . 0 to 200 F (-18 to 93 C)
Nitrile . . . . . . . . . . . . . . . . . . . . . 10
Kynar
PVDF . . . . . . . . . . . . . . 10
Santoprene
. . . . . . . . . . . . . . -40
PTFE . . . . . . . . . . . . . . . . . . . . . 40
Viton
. . . . . . . . . . . . . . . . . . . . -40
Dimensional Data . . . . . . . . . . . . see page 8
Mounting Dimension . . . . . . . . . . . 9-1/16" x 10-1/16"
Noise Level @ 70 psig, 60 cpm. . . . . . 85.0 dB(A)
The pump sound pressure levels published here have been updated to an Equivalent
Con tinu ous Sound Level (LA
) to meet the intent of ANSI S1.13-1971, CAGI-PNEUROP
eq
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 ques-
tions concerning availability.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276
FAX (800) 892-6276
arozone.com
2" DIAPHRAGM PUMP
1:1 RATIO (METALLIC)
OPERATING OR SERVICING THIS EQUIPMENT.
to 280
F (-51
to 138
C)
º
to 180
F (-29
to 82
º
to 180
F (-12
to 82
to 200
F (-12
to 93
to 225
F (-40
to 107
to 225
F (4
to 107
to 350
F (-40
to 177
(230 mm x 256 mm)
© 2016
CCN 99594046
MODEL DESCRIPTION CHART
AIR MOTOR / AIR CAP MATERIAL
A - Aluminum / Aluminum
C - Stainless Steel / Cast Iron
S - Stainless Steel / Stainless Steel
THREAD
A - NPTF
B - BSP
FLUID CAPS & MANIFOLD MATERIAL
A - Aluminum
C - Cast Iron
HARDWARE MATERIAL
P - Plated Steel
SEAT MATERIAL
A - Santoprene
C - Hytrel
E - Carbon Steel
C)
F - Aluminum
G - Nitrile
C)
C)
BALL MATERIAL
C)
A - Santoprene
C)
C - Hytrel
G - Nitrile
C)
DIAPHRAGM MATERIAL
A - Santoprene
C - Hytrel
G - Nitrile
L - Long Life PTFE
FLUID SECTION SERVICE KIT SELECTION
EXAMPLE: MODEL # PD20A-ACS-SAA
FLUID SECTION SERVICE KIT # 637309-AA
PD20X-X
RELEASED:
REVISED:
(REV: V)
Figure 1
P D20 X - X X X - X X X - A
F - 2" ANSI / DIN Flange
H - Hastelloy - C
S - Stainless Steel
S - Stainless Steel
H - Hard 440 Stainless Steel
K - Kynar PVDF
L - Hastelloy - C
S - 316 Stainless Steel
S - 316 Stainless Steel
T - PTFE
V - Viton
M - Medical Grade Santoprene
T - PTFE / Santoprene
V - Viton
PD20X - XXX - X X X
637309 - X X
Ball
6-11-96
10-28-16
Diaphragm
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Summary of Contents for Ingersoll-Rand ARO PD20 Series
- Page 1 OPERATOR’S MANUAL PD20X-X INCLUDING: OPERATION, INSTALLATION & MAINTENANCE RELEASED: 6-11-96 REVISED: 10-28-16 2” DIAPHRAGM PUMP (REV: V) 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.
-
Page 2: Operating And Safety Precautions
OPERATING AND SAFETY PRECAUTIONS READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE. Obtain Material Safety Data Sheets on all materials EXCESSIVE AIR PRESSURE HAZARDOUS MATERIALS from the supplier for proper handling instructions. STATIC SPARK HAZARDOUS PRESSURE EXPLOSION HAZARD. -
Page 3: General Description
GENERAL DESCRIPTION MAINTENANCE The ARO diaphragm pump offers high volume delivery even Provide a clean work surface to protect sensitive internal at low air pressure and a broad range of material compatibility moving parts from contamination from dirt and foreign options available. - Page 4 PARTS LIST / PD20X-X-X FLUID SECTION FLUID SECTION SERVICE KITS (637309 -XXX or 637309 -XX) For Fluid Kits With Seats: 637309-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 DIA- PHRAGM Option, refer to -XXX in chart below), and items: 19, 33, 70, 144, 175, 237 and 238 (listed below) plus 174 and 94276 Lubriplate FMK-2 grease (page 6).
- Page 5 PARTS LIST / PD20X-X-X FLUID SECTION COLOR CODE MATERIAL DIAPHRAGM BALL COLOR COLOR E.P.R. N / A Blue (�) Hytrel Cream Cream Neoprene Green (�) (PD20X-FXX-X) Nitrile Black Red (�) Santoprene Santoprene Green (Backup) PTFE White White Viton Yellow (-) Yellow (�) (-) Dash (�) Dot...
-
Page 6: Air Motor Section Service
PARTS LIST / PD20X-X-X AIR SECTION Indicates parts included in 637302 Air Section Service Kit shown below and items (70), (144), (175), (180) shown on page 4. Item Description (size) Qty Part No. [Mtl] Item Description (size) Qty Part No. [Mtl] 136 Piston Plug 94033... - Page 7 PARTS LIST / PD20X-X-X AIR SECTION MAJOR VALVE CROSS SECTION DETAIL PILOT VALVE 174� 109 110� 112 114� 113� PART GROUP 169� 168� 172� 171� 173� 174� Figure 4 173� 114� 110� � Substitute these “O” rings for “166” onmodels PD20S-X-X & 132�...
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Page 8: Troubleshooting
TROUBLE SHOOTING Product discharged from exhaust outlet. Low output volume, erratic flow, or no flow. Check for diaphragm rupture. Check air supply. Check tightness of (14) diaphragm screw. Check for plugged outlet hose. Check for kinked (restrictive) outlet material hose. Air bubbles in product discharge.
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