PD20R-X
OPERATOR’S MANUAL
RELEASED: 9-12-03
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
REVISED:
11-11-10
(REV. 07)
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
Refer to Model Description Chart to match the pump material options.
637309-XXforfluidsectionrepair(seepage4).NOTE:Thiskitalsocon-
tains several air motor seals which will need to be replaced.
637369 for air section repair (see page 6).
637374 major air valve assembly (see page 7).
PUMP DATA
Models . . . . . . . . . . . . . see Model Description Chart for “-XXX”.
Pump Type . . . . . . . . . . MetallicAirOperatedDoubleDiaphragm
Material . . . . . . . . . . . . . see Model Description Chart.
Weight . . PD20X-XCX-XXX . . . . . . 165 lbs (74.8 kgs)
PD20X-AHX-XXX . . . . . . 154 lbs (69.9 kgs)
Figure 1
PD20X-ASX-XXX . . . . . . 154 lbs (69.9 kgs)
PD20X-BHX-XXX . . . . . . 154 lbs (69.9 kgs)
MODEL DESCRIPTION CHART
PD20X-BSX-XXX . . . . . . 154 lbs (69.9 kgs)
PD20X-FHX-XXX . . . . . . 146 lbs (66.2 kgs)
PD20 X - X X X - X X X
PD20X-FSX-XXX . . . . . . 146 lbs (66.2 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) . . 170 g.p.m. (644 l.p.m.)
Displacement / Cycle @ 100 p.s.i.g. . 1.4 gal. (5.3 lit.)
Maximum Particle Size . . . . . . . . . . 1/4” dia. (6.4 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)
Polypropylene . . . . . . . . . . . 35_ to 175_ F (2_ to 79_ C)
PVDF (KynarR) . . . . . . . . . . 10_ to 200_ F (-12_ to 93_ 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
AIR MOTOR / AIR CAP MATERIAL
R - Polypropylene / Stainless Steel
Y - Polypropylene / Cast Iron
THREAD
A
B
F
- 2 - 11-1/2 N.P.T.F. - 1
- Rp 2 (2 - 11 BSP parallel)
- 2” A.N.S.I. / DIN Flange
FLUID CAPS & MANIFOLD MATERIAL
C
H
S
- Cast Iron
- Hastelloy - C
- Stainless Steel
HARDWARE MATERIAL
P
S
- Plated Steel
- Stainless Steel
SEAT MATERIAL
A
C
E
F
- Santoprene
- Hytrel
H
K
L
- Hard 440 Stainless Steel
- PVDF (Kynar)
- Hastelloy - C
- Carbon Steel
- Aluminum
- Nitrile
Mounting Dimension . . . . . 9-1/16” x 10-1/16” (230 mm x 256 mm)
Noise Level @ 70 p.s.i., 60 c.p.m.{ . . 85.0 db(A)|
S
- 316 Stainless Steel
G
BALL MATERIAL
Tested with 67263 muffler assembly installed.
A
C
G
- Santoprene
- Hytrel
- Nitrile
S
T
V
- 316 Stainless Steel
- PTFE
- Viton
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.
DIAPHRAGM MATERIAL
NOTICE: All possible options are shown in the chart, however, certain combina-
tions may not be recommended, consult a representative or the factory if you have
questions concerning availability.
A
C
G
- Santoprene
- Hytrel
- Nitrile
M - Medical Grade Santoprene
T
V
- PTFE / Santoprene
- Viton
FLUID SECTION SERVICE KIT SELECTION
PD20X - XXX - X X X
637309 - X X
EXAMPLE: MODEL # PD20Y-ACP-SAA
FLUID SECTION SERVICE KIT # 637309-AA
Ball
Diaphragm
INGERSOLL RAND COMPANY
209 NORTH MAIN STREET BRYAN, OHIO 43506
(800) 276-4658 D FAX (800) 266-7016
E2010
CCN 15199078
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GENERAL DESCRIPTION
PARTS AND SERVICE KITS
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, valve 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.
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.
MAINTENANCE
S Provide a clean work surface to protect sensitive internal moving
partsfrom contaminationfrom dirtandforeignmatter 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.
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 “O” rings in the air motor section of the pump.
FLUID SECTION DISASSEMBLY
1. Remove (61) outlet manifold, (60) inlet manifold.
2. Remove (22) balls, (19) “O” rings (if applicable) and (21) seats.
3. Remove (15) fluid caps.
OPERATING INSTRUCTIONS
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 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.
4. Removethe(6)diaphragmwasher,(7)or(7/8)diaphragms,and(5)
backup washer.
S Disconnecttheairsupplyfromthepumpifitistobeinactiveforafew
hours.
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.
S Theoutletmaterialvolumeisgovernednotonlybytheairsupplybut
alsobythematerialsupplyavailableattheinlet.Thematerialsupply
tubing should not be too small or restrictive. Be sure not to use hose
which might collapse.
FLUID SECTION REASSEMBLY
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.
S Secure the diaphragm pump legs to a suitable surface to insure
against damage by vibration.
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.
VitonR and HytrelR are trademarks of the DuPont Company,
S
KynarR is a registered trademark of Penwalt Corp.
LubriplateR is a registered trademark of Lubriplate Division (Fiske Brothers)
SantopreneR is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P.,
S
PD20R-X
Page 3 of 8
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PARTS LIST / PD20X-X-X FLUID SECTION
FLUID SECTION SERVICE KITS (637309-XX)
L KITS INCLUDE: BALLS (see Ball Option, refer to -XX in chart below), DIAPHRAGMS (see Diaphragm Option, refer to -XX in chart below), and items
19, 70, 144, 175, (listed below) plus 174 and 94276 Lubriplate FML-2 grease (page 6).
SEAT OPTIONS PD20X-XXX-XXX
BALL OPTIONS PD20X-XXX-XXX
“21”
L “22” (2-1/2” dia.)
-XXX Seat
Qty [Mtl]
(4) [SP]
-XXX Seat
Qty [Mtl]
(4) [SH]
-XXX Ball
Qty [Mtl]
(4) [SP]
-XXX Ball
Qty [Mtl]
(4) [SS]
-AXX 94328-A
-CXX 94328-C
-EXX 95677
-FXX 95673
-GXX 94328-G
-HXX 94354
-KXX 94477-K
-LXX 95639
-SXX 94353
-XAX 93358-A
-XCX 93358-C
-XGX 93358-2
-XSX 94805
-XTX 93358-4
-XVX 93358-3
(4)
(4)
(4)
(4)
[H]
[C]
[A]
[B]
(4)
[K]
(4)
(4)
[H]
[B]
(4)
(4)
[T]
[V]
(4) [Ha]
(4) [SS]
DIAPHRAGM OPTIONS PD20X-XXX-XXX
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
[CI] = Cast Iron
[E] = E.P.R.
[H] = Hytrel
[Ha] = Hastelloy - C
[K] = PVDF (Kynar)
[MSP]=MedicalGradeSantoprene
[SH] = Hard Stainless Steel
[SP] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
[V] = Viton
L Service Kit
-XX = (Ball)
L “7”
L “8”
L “19”
“O” Ring
-XXX -XX = (Diaphragm) Diaphragm Qty [Mtl] Diaphragm Qty [Mtl] (1/8” x 3-5/8” o.d.) Qty [Mtl]
-XXA 637309-XA
-XXC 637309-XC
-XXG 637309-XG
-XXM 637309-XM
-XXT 637309-XT
-XXV 637309-XV
94329-A
94329-C
94329-G
94329-M
94355-T
95344
(2)
(2)
(2)
[SP] - - - - -
- - -
- - -
- - -
- - -
- - - 94356
(4)
(4)
(4)
(4)
(4)
(4)
[E]
[V]
[B]
[T]
[T]
[V]
[H]
[B]
- - - - -
- - - - -
- - - Y327-237
- - - Y325-237
- - - Y328-237
(2) [MSP] - - - - -
(2)
(2)
[T]
[V]
94330-A
- - - - -
(2) [SP] Y328-237
- - - - - - Y327-237
NOTE: Seat options -AXX, -CXX and -GXX do not require item 19 “O” ring.
MANIFOLD THREAD / FLUID CAP MATERIAL OPTIONS PD20X-XXX-XXX
PD20X-XCX-
PD20X-XHX-
PD20X-FHX-
PD20X-XSX-
PD20X-FSX-
Item Description (size)
Qty Part No.
(2) 94357-2
(2) 93065
(2) Y5-111-T
(2) 94346
(1) 94347-(l)
(1) 94348-(l)
(2) Y17-28-C
(2) 94439-1
[Mtl] Part No.
[Mtl] Part No.
[Mtl] Part No.
[Ha] 94357-2
[Ha] 93065
[Ha] Y5-111-T
[Ha] 95570
[Ha] 95510-(l)
[Ha] 95511-(l)
- - - - - - - -
[Mtl] Part No.
[Mtl]
[SS]
[SS]
[SS]
[SS]
[SS]
[SS]
- - -
6
9
Diaphragm Washer
Washer
[SS] 94357-3
[SS] 95683
[SS] 95682
[CI] 95679
[CI] 95680-(l)
[CI] 95681-(l)
[C] - - - - -
[Ha] 94357-3
[Ha] 95683
[Ha] 95682
[Ha] 95679
[Ha] 96341 u
[Ha] 96342 u
- - - - - - - -
[SS] 94357-2
[SS] 93065
[SS] Y5-111-T
[SS] 95570
[SS] 95512 u
[SS] 95513 u
- - - - - - - -
14 Screw (5/8” - 18 x 2-1/2”)
15 Fluid Cap
60 Inlet Manifold
61 Outlet Manifold
63 Pipe Plug (2 - 11-1/2 N.P.T.)
(R-2, 2 - 11 BSP)
[C] - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - -
l For N.P.T.F. thread models (PD20X-AXX-XXX), use “-1”
l For BSP thread models (PD20X-BXX-XXX), use “-2”
u
Flange models
EXTERNAL HARDWARE OPTION PD20X-XXX-XXX
PD20X-XXP-XXX PD20X-XXS-XXX
Item Description (size)
26 Screw (M10 x 1.5 - 6g x 35 mm)
27 Screw (M10 x 1.5 - 6g x 45 mm)
29 Nut (M10 x 1.5 - 6g)
Qty Part No.
(8) 94409-1
(16) 94990-1
(16) 94992-1
[Mtl] Part No.
[C] 94409-2
[C] 94990
[C] 94992
[Mtl]
[SS]
[SS]
[SS]
COMMON PARTS
Item
Description (size)
Rod
Qty Part No.
(1) 94358
[Mtl]
[C]
Item
Description (size)
Qty Part No.
(2) Y17-51-S
(4) 94531
(2) Y186-51
(2) Y325-117
(4) 94098
[Mtl]
[SS]
[C]
[B]
[B]
1
5
126 Pipe Plug (1/4 - 18 N.P.T. x 0.41”)
131 Screw (M10 x 1.5 - 6g x 120 mm)
Ln144 “U” Cup (3/16” x 1-3/8” o.d.)
Ln175 “O” Ring (3/32” x 1” o.d.)
n 180 Washer (0.406” i.d. x 0.031” thick)
181 Roll Pin (0.156” o.d. x 3/4” long)
Backup Washer
(2) 94357-2
(1) 94349-1
(1) 94345-1
(1) 94349-2
(1) 94345-2
(2) 94100
[SS]
[SS]
[CI]
[SS]
[CI]
[B]
68 Air Cap (models PD20R-XXX-XXX)
(models PD20Y-XXX-XXX)
69 Air Cap (models PD20R-XXX-XXX)
(models PD20Y-XXX-XXX)
[Co]
[SS]
(4) Y178-56-S
L n 70 Gasket
V “Smart Parts” - Keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.
n Air Motor Kit parts, see page 6.
Page 4 of 8
PD20R-X
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PARTS LIST / PD20X-X-X FLUID SECTION
COLOR CODE
DIAPHRAGM
COLOR
3
2
1
4
BALL
COLOR
MATERIAL
8
6
5
7
Hytrel
Nitrile
Cream
Black
Tan
Cream
Red (S)
Tan
61 (PD20X-FXX-XXX)
Santoprene
Santoprene
(Backup)
PTFE
Green
N / A
White
Yellow (-)
(-) Dash
White
Yellow (S)
(S) Dot
Viton
Torque Sequence
61 (PD20X-AXX-XXX)
(PD20X-BXX-XXX)
FOR THE
AIR MOTOR SECTION
SEE PAGES 6 & 7
26 ,G
181
175 k 144 k
144 k 70 k 1 k
5
7
9
22
21
19 z
27 ,G
68 126 s 70 k
175 k
15
29 69
180 131 ,x
6
14 ,
60 (PD20X-AXX-XXX)
(PD20X-BXX-XXX)
22
63 s
21
26 ,G
19 z
60 (PD20X-FXX-XXX)
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
VIEW OF TWO PIECE PTFE DIAPHRAGM
(14) Diaphragm screw, apply Loctite #271 to threads,
65 - 70 ft lbs (88.1 - 94.9 Nm).
(26 and 27) Fluid caps / manifold screws 30 - 40 ft lbs
(40.7 - 54.2 Nm).
(131) Screw 35 - 40 ft lbs (47.5 - 54.2 Nm).
G Apply anti-seize compound to threads when using
stainless steel fasteners and stainless steel wet ends.
LUBRICATION / SEALANTS
k Apply Lubriplate FML-2 grease to all “O” rings,
“U” Cups & mating parts.
x Apply Loctite 242 to threads at assembly.
s Apply PTFE tape to threads at assembly.
7 PTFE
Santoprene 8
z Not used with PD20X-XXX-AXX, -CXX & -GXX.
Z Lubriplate FML-2 is a white food grade petroleum grease.
Figure 2
PD20R-X
Page 5 of 8
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PARTS LIST / PD20X-X-X AIR SECTION
n Indicates parts included in 637369 Air Section Service Kit shown below and items (70), (144), (175) and (180) shown on page 4.
AIR MOTOR PARTS
Item
Description (size)
Qty Part No.
(1) 95667
(1) 94092
(4) 95921
(2) 95846
(1) 95651
(2) 94083
(2) 94084
(1) 94860
(1) 94099
(8) 95931
(8) 95923
(1) 95789
(1) 95790
(1) Y325-32
(1) 95966
(1) Y186-50
(1) 95650
(1) 95659
(1) Y325-208
(1) Y325-204
(1) 94026
(1) 67164
[Mtl]
Item
Description (size)
Qty Part No.
(2) 94433
(1) Y240-9
(1) 94081
(1) Y325-119
(1) Y325-22
(2) Y325-26
(2) Y325-202
(2) 94102
(1) 95666
(1) 95665
(1) 94810
(2) Y325-202
(1) 95761
(4) 95924
(1) 94276
637308
[Mtl]
[U]
101 Center Body
[P]
168 “O” Ring (3/32” x 5/8” o.d.)
169 “U” Cup (1/8” x 7/8” o.d.)
170 Piston Sleeve
103 Bushing
[D]
[B]
105 Screw (M6 x 1 - 6g x 180 mm)
107 End Plate
[SS]
[SS]
[D]
[Br]
[B]
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 (1/16” x 1-3/8” o.d.)
Kn 174 “O” Ring (1/8” x 1/2” o.d.)
n 176 Diaphragm (check valve)
n 199 Track Gasket
111 Spool
[B]
118 Actuator Pin (0.250” x 2.276” long)
121 Sleeve
[SS]
[D]
[B]
[B]
~ 127 90 St. Elbow (1-1/2 - 11-1/2 N.P.T.)
n 132 Gasket
[C / I]
[B]
[SP]
[B]
133 Washer (M6)
[SS]
[SS]
[P]
n 200 Gasket
[B]
134 Screw (M6 x 1 - 6g x 35 mm)
135 Valve Block
~ 201 Muffler
n 232 “O” Ring (1/8” x 1/2” o.d.)
233 Adapter Plate
[B]
[P]
136 End Cap
[P]
n 137 “O” Ring (1/16” x 2” o.d.)
n 138 “U” Cup (3/16” x 1.792” o.d.)
n 139 “U” Cup (3/16” x 1-1/4” o.d.)
140 Valve Insert
[B]
236 Nut (M6 x 1 - 6g)
[SS]
[B]
L n Lubriplate FML-2 Grease
Lubriplate Grease Packets (10)
[B]
[Ck]
[Ck]
[B]
~
Items not shown
141 Valve Plate
n 146 “O” Ring (1/8” x 7/8” o.d.)
n 147 “O” Ring (1/8” x 5/8” o.d.)
n 166 Track Gasket
n 167 Pilot Piston (includes 168 and 169)
MATERIAL CODE
[B]
[B] = Nitrile
[D] = Acetal
[SP] = Santoprene
[SS] = Stainless Steel
[U] = Polyurethane
[Br] = Brass
[I] = Iron
[B]
[C] = Carbon Steel
[Ck] = Ceramic
[P] = Polypropylene
[D]
K
Fluid Section Service Kit parts, see page 4.
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, (232) “O” ring and (176) checks.
2. Remove (233) adapter plate, releasing (140) valve insert, (141)
valveplate,(199and200)gasketsand(146,147and232)“O”rings.
3. Remove (136) end cap and (137) “O” ring, releasing (111) spool.
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.
S Re-torque fasteners following restart.
S SERVICE TOOLS -- To aid in the installation of (168) “O” rings onto
the (167) pilot piston, use tool # 204130-T, available from ARO.
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)valveinsertand(141)valveplateinto(135)valveblock.
NOTE: Assemble (140) valve insert with “dished” side toward (141)
valve plate. Assemble (141) valve plate with 2 identification dots to-
ward (199 and 200) gaskets.
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 (146, 147 and 232) “O” rings, (199 and 200) gaskets and
(233) adapter plate to (135) valve block.
6. Assemble(132and166)gaskets,(176)checksand(232)“O”ringto
(101) body.
PILOT VALVE REASSEMBLY
7. Assemble (135) valve block and components to (101) body, secur-
ing with (134) screws.
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
PD20R-X
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PARTS LIST / PD20X-X-X AIR SECTION
118
169 k 168 k
172 k
171 k
PILOT VALVE
PART GROUP
121
k 174
170
k 173
167
140
141 k 199 k 146 k 147 k 132 k 166 k
173 k
121
107
. 105
133
118
174 k
135
103
101
. 134
200 k 232 k 233 232 k 176 k
138 k
Optional 94117 Muffler
MAJOR
VALVE
111
139 k
137 k
136
107
236
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
Torque (105) screw to 35 - 40 in. lbs (4.0 - 4.5 Nm).
Torque (134) screw to 35 - 40 in. lbs (4.0 - 4.5 Nm).
LUBRICATION / SEALANTS
Apply Lubriplate FML-2 grease to “O” rings, “U” Cups
& mating parts.
k
A 637374 replacement Major Valve Service Assembly is available separately, which includes the following:
105 (4), 107 (2), 111, 132, 135, 136, 137, 138, 139, 140, 141, 146, 147, 166, 176 (2), 199, 200, 232 (2), 233 and 236 (4)
Figure 3
PD20R-X
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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 Inspectthepumpforsolidobjectsloggedinthediaphragmchamber
or the seat area.
DIMENSIONAL DATA
(Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
P
(PD20X-AXX-XXX) 2 - 11-1/2 N.P.T.F. - 1
(PD20X-BXX-XXX) Rp 2 (2 - 11 BSP parallel)
E
L
F
L
Outlet
B
N Bolt Circle
Q
G
Air Inlet 3/4 - 14 N.P.T.
B
R
D
D
Inlet
Dotted lines show optional
67263 muffler assembly.
H
K
M
J
C
A
2” A.N.S.I. / DIN Flange
(PD20X-FXX-XXX)
Exhaust Port 1-1/2 - 11-1/2 N.P.S.M.
DIMENSIONS
A - see below
E - 16-3/16” (411.2 mm)
F - 12” (304.8 mm)
G - 26-1/4” (666.8 mm)
H - 9-1/16” (230.2 mm)
J - 10-1/16” (255.6 mm)
K - 9/16” (14.3 mm)
L - see below
N - 4.834” (122.8 mm)
P - 21-5/8” (548 mm)
Q - 27-7/8” (708.0 mm)
R - 13-9/16” (344.5 mm)
B - 24-3/4” (628.7 mm)
C - 10-1/16” (255.6 mm)
D - see below
M - 5/8” (15.9 mm)
“A”
“D”
“L”
PD20X-XCX-XXX
PD20X-AHX-XXX
PD20X-ASX-XXX
PD20X-BHX-XXX
PD20X-BSX-XXX
PD20X-FHX-XXX
PD20X-FSX-XXX
19-3/4” (501.4 mm)
19-3/8” (492.1 mm)
19-3/8” (492.1 mm)
19-3/8” (492.1 mm)
19-3/8” (492.1 mm)
19-3/8” (492.1 mm)
19-3/8” (492.1 mm)
1-7/8” (47.6 mm)
2-1/2” (63.5 mm)
2-1/2” (63.5 mm)
2-1/2” (63.5 mm)
2-1/2” (63.5 mm)
2-1/2” (63.5 mm)
2-1/2” (63.5 mm)
2” (50.8 mm)
2-3/32” (53.0 mm)
2-3/32” (53.0 mm)
2-3/32” (53.0 mm)
2-3/32” (53.0 mm)
3-1/4” (82.6 mm)
3-1/4” (82.6 mm)
Figure 4
PN 97999-1060
PD20R-X
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