Sandpiper Signature Series Parts list manual


HDB3/HDB4
Heavy Duty Ball Valve
Design Level 4

A Unit of IDEX Corporation
800 N. Main St.,
Manseld, Ohio 44902 USA
Telephone [phone]
Fax [phone]
SANDPIPERPUMP.COM
©2017 Warren Rupp, Inc.
Certied Quality
ISO 9001 Certied
ISO 14001 Certied
6.26 159
18.62 473
19.25 489
31.19 792
26.06 662
DISCHARGE PORT
3" 150# ANSI FLANGE
4X .75 HOLES EQUALLY
SPACED ON A 6.00 B.C.
SUCTION PORT
3" 150# ANSI FLANGE
4X .75 HOLES EQUALLY
SPACED ON A 6.00 B.C.
AIR INLET
3/4" NPT
31.07 789
15.32 389
1.82 46
27.34 694
17.50 445
17.62 448
8X
.56 14
MOUNTING HOLE
11.00 279
15.00 381
AIR EXHAUST
1" NPT
18.63 473
37.15 944
26.06 662
AIR INLET
3/4" NPT
19.66 499
32.65 829
16.25 413
4.22 107
19.50 495
27.30 693
SUCTION PORT
4" 150# ANSI FLANGE
8X .75 HOLES EQUALLY
SPACED ON A 7.50 B.C.
DISCHARGE PORT
4" 150# ANSI FLANGE
8X .75 HOLES EQUALLY
SPACED ON A 7.50 B.C.
11.00 279
15.00 381
17.63 448
8X
.56
MOUNTING HOLE
AIR EXHAUST
1" NPT
SERVICE & OPERATING MANUAL
Original Instructions
1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY

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Model HDB3/HDB4
IMPORTANT
Read the safety warnings and instructions in this manual
before pump installation and start-up. Failure to comply with
the recommendations stated in this manual could damage the
pump and void factory warranty.
When used for toxic or aggressive uids, the pump should
always be ushed clean prior to disassembly.
Airborne particles and loud noise hazards. Wear eye and ear
protection.
Before maintenance or repair, shut off the compressed air line,
bleed the pressure, and disconnect the air line from the pump.
Be certain that approved eye protection and protective clothing
are worn at all times. Failure to follow these recommendations
may result in serious injury or death.
When the pump is used for materials that tend to settle out
or solidify, the pump should be ushed after each use to
prevent damage. In freezing temperatures the pump should be
completely drained between uses.
Before pump operation, inspect all fasteners for loosening
caused by gasket creep. Retighten loose fasteners to prevent
leakage. Follow recommended torques stated in this manual.
CAUTION
WARNING
Nonmetallic pumps and plastic components are not UV
stabilized. Ultraviolet radiation can damage these parts and
negatively affect material properties. Do not expose to UV light
for extended periods of time.
In the event of diaphragm rupture, pumped material may enter
the air end of the pump, and be discharged into the atmosphere.
If pumping a product that is hazardous or toxic, the air exhaust
must be piped to an appropriate area for safe containment.
This pump is pressurized internally with air pressure during
operation. Make certain that all fasteners are in good condition
and are reinstalled properly during reassembly.
Take action to prevent static sparking. Fire or explosion can
result, especially when handling ammable liquids. The pump,
piping, valves, containers and other miscellaneous equipment
must be properly grounded.
Safety Information
ATEX Pumps - Conditions For Safe Use
Use safe practices when lifting
kg
RECYCLING
Many components of SANDPIPER®AODD
pumps are made of recyclable materials.
We encourage pump users to recycle worn
out parts and pumps whenever possible,
after any hazardous pumped fluids are
thoroughly ushed.
WARNING
The use of non-OEM replacement parts will void (or negate)
agency certications, including CE, ATEX, CSA, 3A and EC1935
compliance (Food Contact Materials). Warren Rupp, Inc. cannot
ensure nor warrant non-OEM parts to meet the stringent
requirements of the certifying agencies.
1. Ambient temperature range is as speci ed in tables 1 to 3 on the next page (per Annex I of DEKRA 18ATEX0094X)
2. ATEX compliant pumps are suitable for use in explosive atmospheres when the equipment is properly grounded in
accordance with local electrical codes
3. Non-Metallic ATEX Pumps only — See Explanation of Pump Nomenclature / ATEX Details Page
Conductive Polypropylene, conductive Acetal or conductive PVDF pumps are not to be installed in applications where the
pumps may be subjected to oil, greases and hydraulic liquids.
4. The optionally provided solenoids shall be protected by a fuse corresponding to its rated current (max 3*Irat according
to EN 60127) or by a motor protecting switch with short circuit and thermal instantaneous tripping (set to the rated
current) as short circuit protection. For solenoids with a very low rated current, a fuse with the lowest current value
according to the indicated standard will be suffi cient. The fuse may be accommodated in the associated supply unit
or shall be separately arranged. The rated voltage of the fuse shall be equal or greater than the stated rated voltage of the
solenoid. The breaking capacity of the fuse shall be as high as or higher than the maximum expected short circuit current
at the location of the installation (usually 1500 A). The maximum permissible ripple is 20% for all dc solenoids.
*Not applicable for all pump models — See Explanation of Pump Nomenclature / ATEX Details Page
5. When operating pumps equipped with non-conductive diaphragms that exceed the maximum permissible projected area,
as de ned in EN ISO 80079-36 : 2016 section 6.7.5 table 8, the following protection methods must be applied
- Equipment is always used to transfer electrically conductive fl uids or
- Explosive environment is prevented from entering the internal portions of the pump, i.e. dry running.
6. Pumps provided with the pulse output kit and used in the potentially explosive atmosphere caused by the presence of
the combustible dust shall be installed in such a way that the pulse output kit is protected against impact
*Not applicable for all pump models — See Explanation of Pump Nomenclature / ATEX Details Page
UNIVERSAL ALL AODD

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Temperature Tables
Ambient Temperature
Range [°C]
Process Temperature
Range [°C]1
Temperature
Class
Maximum Surface Tem-
perature [°C]
-20°C to +60°C
-20°C to +80°C T5 T100°C
-20°C to +108°C T4 T135°C
-20°C to + 160°C T3
T200°C
-20°C to +177°C (225°C) T2

Ambient Temperature
Range [°C]
Process Temperature
Range [°C]
Temperature
Class
Maximum Sur-
face Temperature
[°C]
Options
Pulse Output
Kit
Integral Solenoid
-20°C to +60°C -20°C to +100°C T5 T100 X
-20°C to +50°C -20°C to +100°C T5 T100 X
Ambient Temperature
Range [°C]
Process Temperature
Range [°C]
-20°C to +60°C -20°C to +150°C
1Per CSA standards ANSI LC6-2018 US & Canadian Technical Letter R14, G-Series Natural Gas Models are restricted to (-20°C to + 80°C) process temperature
Note: The ambient temperature range and the process temperature range should not exceed the operating
temperature range of the applied non-metallic parts as listed in the manuals of the pumps.
2ATEX Pulse output or Intergral Solenoid Not Available For All Pump Models See Explanation of Pump Nomenclature / ATEX Details Page



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Table of Contents
SECTION 1: PUMP SPECIFICATIONS ..............1
• Explanation of Nomenclature
• Performance
• Materials
• Dimensional Drawings
SECTION 2: INSTALLATION & OPERATION ...7
• Principle of Pump Operation
• Recommended Installation Guide
• Troubleshooting Guide
SECTION 3: EXPLODED VIEW ........................10
• Composite Repair Parts Drawing
• Composite Repair Parts List
• Material Codes
SECTION 4: AIR END ......................................14
• Air Distribution Valve Assembly
• Air Valve with Stroke Indicator Assembly
• Pilot Valve Assembly
• Intermediate Assembly
SECTION 7: WARRANTY & CERTIFICATES . . 17
• Warranty
• EC Declaration of Conformity - Machinery
• EC Declaration of Conformity - ATEX
• EC Summary of Markings
MODEL SPECIFIC
1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY

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Explanation of Pump Nomenclature
ATEX Detail
Diaphragm Check Valve Materials
B Nitrile
C FKM with PTFE
GN Neoprene Backup with PTFE Overlay
and PTFE Check Balls
H EPDM with PTFE
I EPDM
N Neoprene
S Santoprene
U Santoprene with PTFE
Design Level
4
Construction
SI Stainless Steel Wetted, Cast Iron Air
CI Cast Iron Wetted, Cast Iron Air
Pump Series
HD Heavy Duty
Pump Design
B Soilid Ball
Pump Size
3 3"
4 4"
Discharge Porting Position
D Bottom
T Top
Options
P1 Intrinsically Safe ATEX Compliant
Pulse Output
Your Serial #: (ll in from pump nameplate) _____________________________________
__ __ _____ __ ___ __ __
Pump Pump Pump Size Discharge Diaphragm/ Design Construction
Series Design and Options Porting Valve Level
XX X XXXXXX, XX XXX X XX
Model #:
(ll in from pump
nameplate)
Your Model #:
ATEX Details
Wetted
Material
Options
Non-Wetted
Material
Options
Pump
Options

Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
H, S C6 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, H, S A, C, Y **0, 6 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db A, H, S A, C, Y **0, 6 P1
II 2 G Ex h mb IIC T5 Gb
II 2 D Ex h mb tb IIIC T100°C Db A, H, S A, C, Y **0, 6 A1, A2, A3, A4
S05 M
ATEX Details
Wetted
Material
Options
Non-Wetted
Material
Options
Pump
Options

Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
H, I, S I, Z 6 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, H, I, S, X A, I, Y, Z 6 00
II 2 G E x h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db A, H, I, S, X A, I, Y, Z 6 P1
II 2 G Ex h mb IIC T5 Gb
II 2 D Ex h mb tb IIIC T100°C Db A, H, I, S, X A, I, Y, Z 6 A1, A2, A3, A4
S1F M, M1F Remove wetted material option X
**Pump option 0 is only ATEX compliant with non-wetted material option C
ATEX Details
Wetted
Material
Options
Non-Wetted
Material
Options
Pump
Options

Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
H, I, S I, S, Z 6 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, H, I, S, X A, I, S, Y, Z 6 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db A, H, I, S, X A, I, S, Y, Z 6 P1
II 2 G Ex h mb IIC T5 Gb
II 2 D Ex h mb tb IIIC T100°C Db A, H, I, S, X A, I, S, Y, Z 6 A1, A2, A3, A4
S15,S20,S30 M
ATEX Details
Wetted
Material
Options
Non-Wetted
Material
Options
Pump
Options

Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
C, V C6 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db C, V C0, 6 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db C, V C0, 6 P1
II 2 G Ex h mb IIC T5 Gb
II 2 D Ex h mb tb IIIC T100°C Db C, V C0, 6 A1, A2, A3, A4
S05, S1F NM
ATEX Details
Wetted
Material
Options
Non-Wetted
Material
Options
Pump
Options

Options
I 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
C C 6 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db C C 0, 6 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db C C 0 ,6 P1
II 2 G Ex h mb IIC T5 Gb
II 2 D Ex h mb tb IIIC T100°C Db C C 0 ,6 A1, A2, A3, A4
S15,S20 NM
ATEX Details Construction Options
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db CA 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db CA P1
PB1/4
ATEX Details
Wetted
Material
Options
Non-Wetted
Material
Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
S S, T, 7, 8, 9
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db All Options All Options
G15, G20, G30
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
II, SI, HI N/A
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, CI, II, HI, HC, SI, SS P1
ST1 1/2
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
II, SI 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, I, SI, SS 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db A, I, II, SI, SS P1
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
SI, HI 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, SI, SS, HC, HI 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db A, HC, HI, SI, SS P1
HDF1, HDF2
SB1, SA1
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
II 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db II P1
HDF3M
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
CI, SI 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db CI, SI P1
HDB3
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
SI, HI, II 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, CI, SS, HC 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db A, CI, II, HI, HC, SI, SS P1
HDB2
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
SI, II 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, CI, SS 00
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db A, CI, II, SI, SS P1
HDB1
ATEX Details Construction Options
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1D Ex h IIIC T100°C...T200°C Da
I M1 Ex h I Ma
II, SI 00
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db A, I, SI, SS 00
HDF3A
MODEL SPECIFIC
1: PUMP SPECS

100 PSI
80 PSI
60 PSI
40 PSI
PSI
125 PSI
0100 200 300 400 500 600 700 800 900 1000 1100 1200
20 PSI Air Inlet Pressure
Liters per minute
U.S. Gallons per minute
CAPACITY
HEAD
0
20
40
60
80
100
120
140
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320
20(34)
40(68) 60(101.9)
80(135.9)
100(169.9)
120(203.9)
140(237.9)
160(271.8)
180(305.8)
200(339.8)
BAR
0
1
2
3
4
5
6
7
8
9
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6 • Model HDB3/HDB4
Performance
HDB3 & HDB4
ELASTOMERIC FITTED
SUCTION/DISCHARGE PORT SIZE
• 3" ANSI Flange
CAPACITY
• 0 to 300 gallons per minute
(0 to 1136 liters per minute)
AIR DISTRIBUTION VALVE
• No-lube, no-stall design
SOLIDS-HANDLING
• Up to .875 in. (22.2mm)
HEADS UP TO
• 125 psi or 289 ft. of water
(8.8 Kg/cm2or 88 meters)
MAXIMUM OPERATING PRESSURE
• 125 psi (8.6 bar)
DISPLACEMENT/STROKE
• 2.0 Gallon / 7.6 liter
SHIPPING WEIGHT
• Cast Iron 460 lbs. (207 kg)
• Stainless Steel 480 lbs. (216 kg)
PSI
BAR
0
1
2
3
4
5
6
7
8
9
0100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
Liters per minute
U.S. Gallons per minute
CAPACITY
0
20
40
60
80
100
120
140
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300
20(34)
40(68)
60(101.9)
80(135.9)
100(169.9)
120(203.9)
140(237.9)
160(271.8)
180(305.8)
200(339.8)
MODEL HDB3/HDB4 Performance Curve
Performance based on the following: elastomer fitted pump, flooded suction,
water at ambient conditions. The use of other materials and varying hydraulic
conditions may result in deviations in excess of 5%.
AIR CONSUMPTION
SCFM (M3/hr)
HEAD
100 PSI
80 PSI
60 PSI
40 PSI
125 PSI
20 PSI Air Inlet Pressure
HDB3 & HDB4
PTFE AND SANTOPRENE
FITTED
SUCTION/DISCHARGE PORT SIZE
• 3" ANSI Flange
CAPACITY
• 0 to 290 gallons per minute
(0 to 1102 liters per minute)
AIR DISTRIBUTION VALVE
• No-lube, no-stall design
SOLIDS-HANDLING
• Up to .875 in. (22.2mm)
HEADS UP TO
• 125 psi or 289 ft. of water
(8.8 Kg/cm2or 88 meters)
MAXIMUM OPERATING PRESSURE
• 125 psi (8.6 bar)
DISPLACEMENT/STROKE
•1.9Gallon / 7.2 liter
SHIPPING WEIGHT
• Cast Iron 460 lbs. (207 kg)
• Stainless Steel 480 lbs. (216 kg)
MODEL SPECIFIC UNIVERSAL ALL AODD
1: PUMP SPECS

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om Model HDB3/HDB4 • 7
Materials
Material Prole: Operating
Temperatures:
Max. Min.
Conductive Acetal: Tough, impact resistant, ductile. Good
abrasion resistance and low friction surface. Generally inert, with
good chemical resistance except for strong acids and oxidizing
agents.
190°F
88°C
-20°F
-29°C
EPDM: Shows very good water and chemical resistance. Has
poor resistance to oils and solvents, but is fair in ketones and
alcohols.
280°F
138°C
-40°F
-40°C
FKM: (Fluorocarbon) Shows good resistance to a wide range
of oils and solvents; especially all aliphatic, aromatic and
halogenated hydrocarbons, acids, animal and vegetable oils.
Hot water or hot aqueous solutions (over 70°F(21°C)) will
attack FKM.
350°F
177°C
-40°F
-40°C
Hytrel®: Good on acids, bases, amines and glycols at room
temperatures only.
220°F
104°C
-20°F
-29°C
Neoprene: All purpose. Resistance to vegetable oils. Generally
not affected by moderate chemicals, fats, greases and many
oils and solvents. Generally attacked by strong oxidizing acids,
ketones, esters and nitro hydrocarbons and chlorinated aromatic
hydrocarbons.
200°F
93°C
-10°F
-23°C
Nitrile: General purpose, oil-resistant. Shows good solvent, oil,
water and hydraulic uid resistance. Should not be used with
highly polar solvents like acetone and MEK, ozone, chlorinated
hydrocarbons and nitro hydrocarbons.
190°F
88°C
-10°F
-23°C
Nylon: 6/6 High strength and toughness over a wide
temperature range. Moderate to good resistance to fuels, oils
and chemicals.
180°F
82°C
32°F
0°C
Polypropylene: A thermoplastic polymer. Moderate tensile
and ex strength. Resists stong acids and alkali. Attacked by
chlorine, fuming nitric acid and other strong oxidizing agents.
180°F
82°C
32°F
0°C
PVDF: (Polyvinylidene Fluoride) A durable uoroplastic with
excellent chemical resistance. Excellent for UV applications.
High tensile strength and impact resistance.
250°F
121°C
0°F
-18°C
Santoprene®: Injection molded thermoplastic elastomer with
no fabric layer. Long mechanical ex life. Excellent abrasion
resistance.
275°F
135°C
-40°F
-40°C
UHMW PE: A thermoplastic that is highly resistant to a broad
range of chemicals. Exhibits outstanding abrasion and impact
resistance, along with environmental stress-cracking resistance.
180°F
82°C
-35°F
-37°C
Urethane: Shows good resistance to abrasives. Has poor
resistance to most solvents and oils.
150°F
66°C
32°F
0°C
Virgin PTFE: (PFA/TFE) Chemically inert, virtually impervious.
Very few chemicals are known to chemically react with PTFE;
molten alkali metals, turbulent liquid or gaseous uorine and
a few uoro-chemicals such as chlorine triuoride or oxygen
diuoride which readily liberate free uorine at elevated
temperatures.
220°F
104°C
-35°F
-37°C
Maximum and Minimum Temperatures are the limits for which these materials can be operated.
Temperatures coupled with pressure affect the longevity of diaphragm pump components.
Maximum life should not be expected at the extreme limits of the temperature ranges.

Alloy C: Equal to ASTM494 CW-12M-1 specication for nickel and nickel alloy.
Stainless Steel: Equal to or exceeding ASTM specication A743 CF-8M for corrosion
resistant iron chromium, iron chromium nickel and nickel based alloy castings for
general applications. Commonly referred to as 316 Stainless Steel in the pump industry.
For specic applications, always consult the Chemical Resistance Chart.
CAUTION! Operating temperature limitations are as follows:
1: PUMP SPECS

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om
8 • Model HDB3/HDB4
HDB3 Heavy Duty Ball Valve - 3" Top Ported
Dimensions in inches (metric dimensions in brackets). Dimensional Tolerance .125" (3mm).
Dimensional Drawings
36.40 925
18.63 473
26.06 662
AIR INLET
3/4" NPT
19.66 499
32.65 829
1.22 31
13.50 343
16.25 413
24.30 617
SUCTION PORT
3" 150# ANSI FLANGE
4X .75 HOLES EQUALLY
SPACED ON A 6.00 B.C.
DISCHARGE PORT
3" 150# ANSI FLANGE
4X .75 HOLES EQUALLY
SPACED ON A 6.00 B.C.
11.00 279
15.00 381
17.63 448
8X
.56
MOUNTING HOLE
AIR EXHAUST
1" NPT
MODEL SPECIFIC
1: PUMP SPECS

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om Model HDB3/HDB4 • 9
HDB4 Heavy Duty Ball Valve - 4" Top Ported
Dimensions in inches (metric dimensions in brackets). Dimensional Tolerance .125" (3mm).
Dimensional Drawings
18.63 473
37.15 944
26.06 662
AIR INLET
3/4" NPT
19.66 499
32.65 829
16.25 413
4.22 107
19.50 495
27.30 693
SUCTION PORT
4" 150# ANSI FLANGE
8X .75 HOLES EQUALLY
SPACED ON A 7.50 B.C.
DISCHARGE PORT
4" 150# ANSI FLANGE
8X .75 HOLES EQUALLY
SPACED ON A 7.50 B.C.
11.00 279
15.00 381
17.63 448
8X
.56
MOUNTING HOLE
AIR EXHAUST
1" NPT
1: PUMP SPECS

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om
10 • Model HDB3/HDB4
HDB3 Heavy Duty Ball Valve - 3" Bottom Ported
Dimensions in inches (metric dimensions in brackets). Dimensional Tolerance .125" (3mm).
Dimensional Drawings
6.26 159
18.62 473
19.25 489
31.19 792
26.06 662
DISCHARGE PORT
3" 150# ANSI FLANGE
4X .75 HOLES EQUALLY
SPACED ON A 6.00 B.C.
SUCTION PORT
3" 150# ANSI FLANGE
4X .75 HOLES EQUALLY
SPACED ON A 6.00 B.C.
AIR INLET
3/4" NPT
31.07 789
15.32 389
1.82 46
27.34 694
17.50 445
17.62 448
8X
.56 14
MOUNTING HOLE
11.00 279
15.00 381
AIR EXHAUST
1" NPT
1: PUMP SPECS

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om Model HDB3/HDB4 • 11
HDB4 Heavy Duty Ball Valve - 4" Bottom Ported
Dimensions in inches (metric dimensions in brackets). Dimensional Tolerance .125" (3mm).
Dimensional Drawings
6.26 159
18.62 473
19.25 489
31.19 792
26.06 662
DISCHARGE PORT
4" 150# ANSI FLANGE
8X .75 HOLES EQUALLY
SPACED ON A 7.50 B.C.
SUCTION PORT
4" 150# ANSI FLANGE
8X .75 HOLES EQUALLY
SPACED ON A 6.00 B.C.
AIR INLET
3/4" NPT
18.32 465
17.50 445
30.34 771
1.18 30
17.62 448
8X
.56 14
MOUNTING HOLE
11.00 279
15.00 381
AIR EXHAUST
1" NPT
1: PUMP SPECS

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om
12 • Model HDB3/HDB4
Air-Operated Double Diaphragm (AODD) pumps are powered
by compressed air or nitrogen.
The main directional (air) control valve ①distributes
compressed air to an air chamber, exerting uniform pressure
over the inner surface of the diaphragm
②. At the same time,
the exhausting air ③ from behind the opposite diaphragm
is directed through the air valve assembly(s) to an exhaust
port ④.
As inner chamber pressure (P1) exceeds liquid chamber
pressure (P2), the rod ⑤connected diaphragms shift
together creating discharge on one side and suction on the
opposite side. The discharged and primed liquid’s directions
are controlled by the check valves (ball or ap)⑥orientation.
The pump primes as a result of the suction stroke. The
suction stroke lowers the chamber pressure (P3) increasing
the chamber volume. This results in a pressure differential
necessary for atmospheric pressure (P4) to push the uid
through the suction piping and across the suction side check
valve and into the outer uid chamber ⑦.
Suction (side) stroking also initiates the reciprocating
(shifting, stroking or cycling) action of the pump. The suction
diaphragm’s movement is mechanically pulled through its
stroke. The diaphragm’s inner plate makes contact with an
actuator plunger aligned to shift the pilot signaling valve.
Once actuated, the pilot valve sends a pressure signal to the
opposite end of the main directional air valve, redirecting the
compressed air to the opposite inner chamber.
Principle of Pump Operation
Air Line
Discharged
Fluid
Discharge
Stroke Suction
Stroke
Primed
Fluid
SAFE AIR
EXHAUST
DISPOSAL
AREA
PUMP INSTALLATION AREA
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
MUFFLER
LIQUID
LEVEL
SUCTION
LINE
LIQUID
LEVEL
SUCTION
LINE
MUFFLER
MUFFLER
SUBMERGED ILLUSTRATION
Pump can be submerged if the pump materials of construction
are compatible with the liquid being pumped. The air exhaust
must be piped above the liquid level. When the pumped product
source is at a higher level than the pump (ooded suction
condition), pipe the exhaust higher than the product source to
prevent siphoning spills.
UNIVERSAL ALL AODD
2: INSTAL & OP

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om Model HDB3/HDB4 • 13
Installation And Start-Up
Locate the pump as close to the product being pumped as possible. Keep the suction line length and number of ttings to a minimum. Do not reduce the suction line
diameter.
Air Supply
Connect the pump air inlet to an air supply with sufcient capacity and pressure to achieve desired performance. A pressure regulating valve should be installed to
insure air supply pressure does not exceed recommended limits.
Air Valve Lubrication
The air distribution system is designed to operate WITHOUT lubrication. This is the standard mode of operation. If lubrication is desired, install an air line lubricator
set to deliver one drop of SAE 10 non-detergent oil for every 20 SCFM (9.4 liters/sec.) of air the pump consumes. Consult the Performance Curve to determine air
consumption.
Air Line Moisture
Water in the compressed air supply may cause icing or freezing of the exhaust air, causing the pump to cycle erratically or stop operating. Water in the air supply can
be reduced by using a point-of-use air dryer.
Air Inlet And Priming
To start the pump, slightly open the air shut-off valve. After the pump primes, the air valve can be opened to increase air ow as desired. If opening the valve
increases cycling rate, but does not increase the rate of ow, cavitation has occurred. The valve should be closed slightly to obtain the most efcient air ow to pump
ow ratio.
Surge Suppressor
Shut-Off Valve
Pressure Gauge
Drain Port
Shut-Off
Valve
Check
Valve
Air Inlet
Discharge
Unregulated Air
Supply to Surge
Suppressor
Pipe Connection
(Style Optional)
Flexible Connector
Flexible Connector
Vacuum
Gauge
Suction
Shut-Off Valve
Drain Port
Air Dryer
Filter Regulator
Muffler
(Optional Piped Exhaust)
Recommended Installation Guide

 Surge Suppressor
Filter/Regulator
Air Dryer
1

3
Principle of Pump Operation
Note: Surge Suppressor and
Piping must be supported after
the exible connection
CAUTION
The air exhaust should
be piped to an area
for safe disposition
of the product being
pumped, in the event of
a diaphragm failure.
UNIVERSAL ALL AODD, EXCEPT FLAP
SUBMERGED ILLUSTRATION
2: INSTAL & OP

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om
14 • Model HDB3/HDB4
Troubleshooting Guide
For additional troubleshooting tips contact After Sales Support at [email protected] or 419-524-8388
  
Pump Cycles Once Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Air valve or intermediate gaskets installed incorrectly. Install gaskets with holes properly aligned.
Bent or missing actuator plunger. Remove pilot valve and inspect actuator plungers.
Pump Will Not Operate
/ Cycle
Pump is over lubricated. Set lubricator on lowest possible setting or remove. Units are designed for lube free operation.
Lack of air (line size, PSI, CFM). Check the air line size and length, compressor capacity (HP vs. cfm required).
Check air distribution system. Disassemble and inspect main air distribution valve, pilot valve and pilot valve actuators.
Discharge line is blocked or clogged manifolds. Check for inadvertently closed discharge line valves. Clean discharge manifolds/piping.
Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Blocked air exhaust mufer. Remove mufer screen, clean or de-ice, and re-install.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Pump chamber is blocked. Disassemble and inspect wetted chambers. Remove or ush any obstructions.
Pump Cycles and Will
Not Prime or No Flow
Cavitation on suction side. Check suction condition (move pump closer to product).
Check valve obstructed. Valve ball(s) not seating
properly or sticking.
Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Clean out around valve ball cage and valve seat area. Replace valve ball or valve seat if damaged.
Use heavier valve ball material.
Valve ball(s) missing (pushed into chamber or
manifold).
Worn valve ball or valve seat. Worn ngers in valve ball cage (replace part). Check Chemical
Resistance Guide for compatibility.
Valve ball(s) / seat(s) damaged or attacked by product. Check Chemical Resistance Guide for compatibility.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Suction line is blocked. Remove or ush obstruction. Check and clear all suction screens or strainers.
Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Pump Cycles Running
Sluggish / Stalling,
Flow Unsatisfactory
Over lubrication. Set lubricator on lowest possible setting or remove. Units are designed for lube free operation.
Icing. Remove mufer screen, de-ice, and re-install. Install a point of use air drier.
Clogged manifolds. Clean manifolds to allow proper air ow.
Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Cavitation on suction side. Check suction (move pump closer to product).
Lack of air (line size, PSI, CFM). Check the air line size, length, compressor capacity.
Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Air supply pressure or volume exceeds system hd. Decrease inlet air (press. and vol.) to the pump. Pump is cavitating the uid by fast cycling.
Undersized suction line. Meet or exceed pump connections.
Restrictive or undersized air line. Install a larger air line and connection.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Suction line is blocked. Remove or ush obstruction. Check and clear all suction screens or strainers.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Check valve obstructed. Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained air or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs. Purging the chambers of air can be dangerous.
Product Leaking
Through Exhaust
Diaphragm failure, or diaphragm plates loose. Replace diaphragms, check for damage and ensure diaphragm plates are tight.
Diaphragm stretched around center hole or bolt holes. Check for excessive inlet pressure or air pressure. Consult Chemical Resistance Chart for compatibility
with products, cleaners, temperature limitations and lubrication.
Premature Diaphragm
Failure
Cavitation. Enlarge pipe diameter on suction side of pump.
Excessive ooded suction pressure. Move pump closer to product. Raise pump/place pump on top of tank to reduce inlet pressure.
Install Back pressure device (Tech bulletin 41r). Add accumulation tank or pulsation dampener.
Misapplication (chemical/physical incompatibility). Consult Chemical Resistance Chart for compatibility with products, cleaners, temperature limitations
and lubrication.
Incorrect diaphragm plates or plates on backwards,
installed incorrectly or worn.
Check Operating Manual to check for correct part and installation. Ensure outer plates have not been
worn to a sharp edge.
Unbalanced Cycling Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Undersized suction line. Meet or exceed pump connections.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Check valve obstructed. Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained air or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs.
UNIVERSAL ALL SANDPIPER, EXCEPT FLAP
2: INSTAL & OP

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om Model HDB3/HDB4 • 15
BOTTOM PORTING is recommended for pumping material containing solids which could settle out in the pumping chambers.
TOP PORTING is recommended if there is a possibility of entrapped air vapors inhibiting the pumping action.
Convert from one conguration to the other by rotating the outer chambers as indicated and substituting the proper pump base
(low base for top porting, high base for bottom porting).
Troubleshooting Guide Composite Repair Parts Drawing
15
16
14
22
3
19
27
24
29
11
1
23
5
21
6
9
44
25
38
41
2
44
12
37
8
30 28
7
35
18
33
34
13
31
10
43
4
40
43
10
42
42
36
39
44
29
32
32
44
20
20
38
17
45
47
46
44
29
43
10
3
HDB3 TOP PORTED CONFIGURATIONHDB4 TOP PORTED CONFIGURATION
26
MODEL SPECIFIC
3: EXP VIEW

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om
16 • Model HDB3/HDB4
 
Design Level 4 Cast Iron Seats,
Nitrile O-rings
 
Design Level 4 Cast Iron Seats,
FKM O-rings
 
Design Level 4 Cast Iron Seats,
EPDM O-rings
 
Design Level 4 Cast Iron Seats,
Neoprene O-rings
 
Design Level 4 Cast Iron Seats,
Conductive PTFE O-rings
 
Design Level 4 Stainless Steel Seats,
Nitrile O-rings
 
Design Level 4 Stainless Steel Seats,
FKM O-rings
 
Design Level 4 Stainless Steel Seats,
EPDM O-rings
 
Design Level 4 Stainless Steel Seats,
Neoprene O-rings
 
Design Level 4 Stainless Steel Seats,
FDA White Nitrile O-rings
 
Design Level 4 Stainless Steel Seats,
Nitrile O-rings
 
Sleeve and Spool Set, Pilot Valve Assembly,
Seals, O-rings and Gaskets
 
Santoprene Diaphragms, Santoprene Check
Balls, Fabric Manifold Gaskets, Nitrile Spacer
Gasket, EPDM Wear Pads, EPDM Seals,
EPDM Seat O-rings
 
Nitrile Diaphragms, Nitrile Check Balls, Fabric
Manifold Gaskets, Nitrile Wear Pads, Nitrile
Seals, Nitrile Seat O-rings
 
EPDM Diaphragms, EPDM Check Balls,
Fabric Manifold Gaskets, EPDM Wear Pads,
EPDM Seals, EPDM Seat O-rings
 
Neoprene Diaphragms, Neoprene Check
Balls, Fabric Manifold Gaskets, Neoprene
Wear Pads, Neoprene Seals,
Neoprene Seat O-rings
 
FKM Diaphragms, PTFE Check Balls,
Blue Gylon Manifold Gaskets, FKM Manifold
Seals, FKM Seats O-rings
 
PTFE Overlay Diaphragms, Neoprene
Backup Diaphragms, PTFE Check
Balls, Blue Gylon Manifold Gaskets,
PTFE Seat Seals, PTFE Manifold Seals
 
FDA White Nitrile Diaphragms, PTFE Check
Balls, Blue Gylon Manifold Gaskets, FDA
White Nitrile Seat O-rings, FDA White Nitrile
Manifold Seals
 
Santoprene Diaphragms, PTFE Check Balls,
Nitrile Spacer Gasket, EPDM Wear Pads,
EPDM Seals, and EPDM Seat O-rings
Service and Repair Kits
 
3: EXP VIEW

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om Model HDB3/HDB4 • 17
Service and Repair Kits Composite Repair Parts List
   
1* 031.021.010 Assembly, Main Air Valve 1
2 050.014.360 W Ball, Check 4
050.014.364 W Ball, Check 4
050.014.365 W Ball, Check 4
050.015.600 Ball, Check 4
3 060.012.000 Base, Pump (Top Ported) 1
060.013.000 Base, Pump (Bottom Ported) 1
4 070.017.170 Bearing, Sleeve 2
5 095.073.001 Assembly, Pilot Valve 1
6 114.003.010 Bracket, Intermediate 1
7 132.012.360 Bumper 2
8 135.016.162 Bushing, Threaded 2
9 170.015.330 Capscrew,
Hex Hd, 5/8-11 X 2.75 4
10 170.034.330 Capscrew,
Hex Head 1/2-13 Unc X 2.00 14
11 170.045.330 Capscrew,
Hex Head 5/16-18 X 1 1/4 4
12 170.064.330 Capscrew,
Hex Hd, 5/8-11 Unc X 2.25 2
13 170.065.110 Capscrew,
Hex Hd, 3/4-10 X 2.25 2
14 170.066.330 Capscrew,
Hex, 1/2-13 X 2.25 24
15 196.031.010 Chamber, Outer 2
196.031.110 Chamber, Outer 2
16 196.032.010 Chamber, Inner 2
17 286.047.604 Diapragm, Overlay 2
18 286.048.354 Diaphragm, Backup 2
(Use With PTFE Overlay
and Santoprene)
286.014.360 Diaphragm 2
286.014.363 Diaphragm 2
286.014.364 Diaphragm 2
286.014.365 Diaphragm 2
19 312.031.010 Elbow, Manifold 2
312.031.110 Elbow, Manifold 2
20 334.023.010 Flange, Porting 2
334.023.110 Flange, Porting 2
21 360.041.379 Gasket, Pilot Valve 1
22 360.046.425 Gasket, Manifold 2
360.046.603 Gasket, Manifold 2
23 360.048.425 Gasket, Air Valve 1
24 510.002.020 Lug, Clamp 4
25 518.023.010 Manifold 1
518.023.110 Manifold 1
26 530.038.000 Mu󰀪er 1
27 544.003.330 Nut, Hex, 5/8-11 Unc 4
28 545.008.330 Nut, Hex, 1/2-13 24
29 545.009.330 Nut, Hex, 5/8-11 Unc 10
30 560.001.360 O-Ring 2
   
31 560.045.360 O-Ring 2
32 560.207.360 O-Ring 8
560.207.363 O-Ring 8
560.207.364 O-Ring 8
560.207.365 O-Ring 8
32 720.074.608 Seal, Ring 8
33 570.010.360 Pad, Wear 2
570.010.363 Pad, Wear 2
570.010.364 Pad, Wear 2
570.010.365 Pad, Wear 2
34 612.063.110 Plate, Outer Diaphragm 2
612.063.330 Plate, Outer Diaphragm 2
35 612.085.330 Plate, Inner Diaphragm 2
612.113.156 Plate, Inner Diaphragm 2
(Use With PTFE Overlay Only)
36 618.003.110 Plug, Pipe, 1/4 2
618.003.330 Plug, Pipe, 1/4 2
37 620.011.114 Plunger, Actuator 2
38 675.021.360 Ring. Sealing 2
675.021.363 Ring. Sealing 2
675.021.364 Ring. Sealing 2
675.021.365 Ring. Sealing 2
675.021.366 Ring. Sealing 2
38 675.021.600 Ring. Sealing 2
39 685.030.120 Rod, Diaphragm 1
40 720.014.360 Seal 2
41 722.128.010 Check Valve Seat 4
722.128.110 Check Valve Seat 4
42 807.085.330 Stud, 5/8-11 X 3.75 14
43 900.003.330 Washer, Lock, 1/2 14
44 900.007.330 Washer, Lock, 5/8 16
HDB4 Model Components
(In Addition To The Parts Above)
45 334.037.010 Flange, Adapter 2
46 360.036.426 Gasket, Flange 2
29 545.009.330 Nut, Hex, 5/8-11 Unc 8
47 807.005.330 Stud, 5/8-11 X 2.50 8
44 900.007.330 Washer, Lock, 5/8 8
  
360.083.360 Gasket, Spacer
(used with Santoprene Diaphragms) 2
ATEX Compliant
LEGEND:
= Items contained within Air End Kits
= Items contianed within Wet End Kits
* Air End Kit includes sleeve and spool set, not entire air valve
assembly
Note: Kits contain components specic to the material codes.
MODEL SPECIFIC
3: EXP VIEW

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om
18 • Model HDB3/HDB4
Material Codes - The Last 3 Digits of Part Number
000.....Assembly, sub-assembly;
and some purchased items
010.....Cast Iron
015.....Ductile Iron
020.....Ferritic Malleable Iron
080.....Carbon Steel, AISI B-1112
110 .....Alloy Type 316 Stainless Steel
111 .....Alloy Type 316 Stainless Steel
(Electro Polished)
112 .....Alloy C
113 .....Alloy Type 316 Stainless Steel
(Hand Polished)
114 .....303 Stainless Steel
115 .....302/304 Stainless Steel
117 .....440-C Stainless Steel (Martensitic)
120.....416 Stainless Steel
(Wrought Martensitic)
148.....Hardcoat Anodized Aluminum
150.....6061-T6 Aluminum
152.....2024-T4 Aluminum (2023-T351)
155.....356-T6 Aluminum
156.....356-T6 Aluminum
157.....Die Cast Aluminum Alloy #380
158.....Aluminum Alloy SR-319
162.....Brass, Yellow, Screw Machine Stock
165.....Cast Bronze, 85-5-5-5
166.....Bronze, SAE 660
170.....Bronze, Bearing Type,
Oil Impregnated
180.....Copper Alloy
305.....Carbon Steel, Black Epoxy Coated
306.....Carbon Steel, Black PTFE Coated
307.....Aluminum, Black Epoxy Coated
308.....Stainless Steel, Black PTFE Coated
309.....Aluminum, Black PTFE Coated
313.....Aluminum, White Epoxy Coated
330.....Zinc Plated Steel
332.....Aluminum, Electroless Nickel Plated
333.....Carbon Steel, Electroless
Nickel Plated
335.....Galvanized Steel
337.....Silver Plated Steel
351.....Food Grade Santoprene®
353.....Geolast; Color: Black
354.....Injection Molded #203-40
Santoprene®Duro 40D +/-5;
Color: RED
356.....Hytrel®
357.....Injection Molded Polyurethane
358.....Urethane Rubber
(Some Applications)
(Compression Mold)
359.....Urethane Rubber
360.....Nitrile Rubber Color coded: RED
363.....FKM (Fluorocarbon)
Color coded: YELLOW
364.....EPDM Rubber
Color coded: BLUE
365.....Neoprene Rubber
Color coded: GREEN
366.....Food Grade Nitrile
368.....Food Grade EPDM
371.....Philthane (Tuftane)
374.....Carboxylated Nitrile
375.....Fluorinated Nitrile
378.....High Density Polypropylene
379.....Conductive Nitrile
408.....Cork and Neoprene
425.....Compressed Fibre
426.....Blue Gard
440.....Vegetable Fibre
500.....Delrin®500
502.....Conductive Acetal, ESD-800
503.....Conductive Acetal, Glass-Filled
506.....Delrin®150
520.....Injection Molded PVDF
Natural color
540.....Nylon
542.....Nylon
544.....Nylon Injection Molded
550.....Polyethylene
551.....Glass Filled Polypropylene
552.....Unlled Polypropylene
555.....Polyvinyl Chloride
556.....Black Vinyl
558.....Conductive HDPE
570.....Rulon II®
580.....Ryton®
600.....PTFE (virgin material)
Tetrauorocarbon (TFE)
603.....Blue Gylon®
604.....PTFE
606.....PTFE
607.....Envelon
608.....Conductive PTFE
610.....PTFE Encapsulated Silicon
611 .....PTFE Encapsulated FKM
632.....Neoprene/Hytrel®
633.....FKM/PTFE
634.....EPDM/PTFE
635.....Neoprene/PTFE
637.....PTFE, FKM/PTFE
638.....PTFE, Hytrel®/PTFE
639.....Nitrile/TFE
643.....Santoprene®/EPDM
644.....Santoprene®/PTFE
656.....Santoprene®Diaphragm and
Check Balls/EPDM Seats
661.....EPDM/Santoprene®
666.....FDA Nitrile Diaphragm,
PTFE Overlay, Balls, and Seals
668.....PTFE, FDA Santoprene®/PTFE
• Delrin and Hytrel are registered
tradenames of E.I. DuPont.
• Nylatron is a registered tradename
of Polymer Corp.
• Gylon is a registered tradename
of Garlock, Inc.
• Santoprene is a registered tradename
of Exxon Mobil Corp.
• Rulon II is a registered tradename
of Dixion Industries Corp.
• Ryton is a registered tradename
of Phillips Chemical Co.
• Valox is a registered tradename
of General Electric Co.
RECYCLING
Many components of SANDPIPER®AODD
pumps are made of recyclable materials.
We encourage pump users to recycle worn
out parts and pumps whenever possible,
after any hazardous pumped fluids are
thoroughly ushed.
UNIVERSAL ALL SP
3: EXP VIEW

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om Model HDB3/HDB4 • 19
Air Distribution Valve Assembly
MAIN AIR VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
1 031.021.010 Air Valve Assembly 1
1-A 095.043.010 Body, Air Valve 1
1-B 031.018.000 Sleeve and Spool Set 1
1-C 132.014.358 Bumper 2
1-D 560.020.360 O-Ring 6
1-E 360.010.425 Gasket 2
1-F 165.011.010 End Cap 2
1-G 170.032.330 Hex Head Capscrew 8
IMPORTANT
Read these instructions completely, before installation
and start-up. It is the responsibility of the purchaser
to retain this manual for reference. Failure to comply
with the recommendations stated in this manual will
damage the pump, and void factory warranty.
1-A
1-B1-B
1-C
1-E
1-F
1-G
1-C
1-E
1-F
1-G
1-D
Air Distribution Valve Servicing
See repair parts drawing, remove screws.
Step 1: Remove Hex Head Cap Screws (1-G).
Step 2: Remove end cap (1-F), gasket (1-E) and bumper (1-C).
Step 3: Remove spool part of (1-B) (caution: do not scratch).
Step 4: Press sleeve (1-B) from body (1-A).
Step 5: Inspect O-Ring (1-D) and replace if necessary.
Step 6: Lightly lubricate O-Rings (1-D) on sleeve (1-B).
Step 7: Press sleeve (1-B) into body (1-A).
Step 8: Reassemble in reverse order, starting with step 3.
Note: Sleeve and spool (1-B) set is match ground to a specied clearance
sleeve and spools (1-B) cannot be interchanged.
LEGEND:
= Items contained within Air End Kits
Note: Kits contain components specic to the material codes.
MODEL SPECIFIC
4: AIR END

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.c om
20 • Model HDB3/HDB4
Pilot Valve Assembly
PILOT VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
5 095.073.001 Pilot Valve Assembly 1
5-A 095.070.558 Valve Body 1
5-B 755.025.000 Sleeve (With O-Rings) 1
5-C 560.033.360 O-Ring (Sleeve) 4
5-D 775.026.000 Spool (With O-Rings) 1
5-E 560.023.360 O-Ring (Spool) 2
5-F 675.037.080 Retaining Ring 1
5-A
5-F
5-D
5-B
5-C
5-E
Pilot Valve Servicing
With Pilot Valve removed from pump.
Step 1: Remove snap ring (5F).
Step 2: Remove sleeve (5B), inspect O-Rings (5C),
replace if required.
Step 3: Remove spool (5D) from sleeve (5B),
inspect O-Rings (5E), replace if required.
Step 4: Lightly lubricate O-Rings (5C) and (5E).
Reassemble in reverse order. LEGEND:
= Items contained within Air End Kits
Note: Kits contain components specic to the material codes.
MODEL SPECIFIC
4: AIR END