Sandpiper Signature Series Parts list manual

s a n d p i p e r p u m p . c o m
HDB2 / HDB50
Heavy Duty Ball Valve
Design Level 3
Warren Rupp, Inc.
AUnit 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
SERVICE & OPERATING MANUAL
Original Instructions
1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sandpi perp ump.c om
hdb2dl3sm-rev0817
Model HDB2/HDB50
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.
ATEX compliant pumps are suitable for use in explosive atmospheres when the equipment is properly grounded
in accordance with local electrical codes. Pumps equipped with electrically conductive diaphragms are suitable for
the transfer of conductive or non-conductive uids of any explosion group. When operating pumps equipped with
non-conductive diaphragms that exceed the maximum permissible projected area, as dened in EN 13463-1: 2009
section 6.7.5 table 9, the following protection methods must be applied:
• Equipment is always used to transfer electrically conductive uids or
• Explosive environment is prevented from entering the internal portions of the pump, i.e. dry running
For further guidance onATEX applications, please consult the factory.
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
Grounding ATEX Pumps
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.
UNIVERSAL ALL AODD
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om
hdb2dl3sm-rev0817
Model HDB2/HDB50
Table of Contents
SECTION 1: PUMP SPECIFICATIONS ................1
• Explanation of Nomenclature
• Performance
• Materials
• Dimensional Drawings
SECTION 2: INSTALLATION & OPERATION ......5
• Principle of Pump Operation
• Recommended Installation Guide
• Troubleshooting Guide
SECTION 3: EXPLODED VIEW ...........................8
• Composite Repair Parts Drawing
• Composite Repair Parts List
• Down Ported Option Drawing
• Material Codes
SECTION 4: AIR END .......................................12
• Air Distribution Valve Assembly
• Pilot Valve Assembly
SECTION 5: WET END .....................................14
• Diaphragm Servicing
SECTION 7: WARRANTY & CERTIFICATES ....15
• Warranty
• CE Declaration of Conformity - Machinery
• ATEX Declaration of Conformity
MODEL SPECIFIC
1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4:AIR END5: WET END6: OPTIONAL7: WARRANTY
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om
1 • Model HDB2/HDB50
hdb2dl3sm-rev0817
Explanation of Pump Nomenclature
ATEX Detail
Diaphragm Check Valve Materials
B Nitrile
C FKM with PTFE
F FDAAccepted White Nitrile
GN Neoprene Backup with PTFE Overlay
and PTFE Check Balls
GR Hytrel Backup w/
PTFE Overlay/PTFE Balls
GS Santoprene Backup with PTFE overlay and
PTFE Check Balls
GZ PTFE/Nitrile Bonded
One-Piece/PTFE Balls
HEPDM with PTFE
IEPDM
NNeoprene
RHytrel
SSantoprene
USantoprene with PTFE
VFKM
Design Level
8
Construction
A Aluminum Wetted, Aluminum Air
CI Cast Iron Wetted, Aluminum Air
II Cast Iron Wetted, Cast IronAir
SI Stainless Steel Wetted, Cast IronAir
SS Stainless Steel Wetted, Aluminum Air
HC Alloy-C Wetted, Aluminum Air
HI Alloy-C Wetted, Cast IronAir
Pump Series
HD Heavy Duty
Pump Design
BSolid Ball
Pump Size & Options
2"
P1 Intrinsically Safe ATEX Compliant
Pulse Output
SB Stainless-Brass sleeve and spool set
Discharge Porting Position
D Down Ported
TTop
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 Detail Construction Options
II 1G c T5
II 1D c T100°C
I M1 c
I M2 c
II, SI, HI N/A
II 2G c T5
II 2D c T100°C
A, CI, II, HI, HC, SI,
SS N/A
II 2GD T5
MODEL SPECIFIC
1: PUMP SPECS
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om Model HDB2/HDB50 • 2
hdb2dl3sm-rev0817
Performance
HDB2/HDB50
SUCTION/DISCHARGE PORT SIZE
• HDB2: 2" NPT
• HDB50: 2" BSP (Tapered)
CAPACITY
• 0 to 135 gallons per minute
(0 to 511 liters per minute)
AIR DISTRIBUTION VALVE
• No-lube, no-stall design
SOLIDS-HANDLING
• Up to .38 in. (9 mm)
HEADS UP TO
• 125 psi or 289 ft. of water
(8.8 Kg/cm2 or 88 meters)
MAXIMUM OPERATING PRESSURE
• 125 psi (8.6 bar)
DISPLACEMENT/STROKE
• .46 Gallon / 1.7 liter
SHIPPING WEIGHT
•Aluminum 90 lbs. (41kg)
• Cast Iron 120 lbs. (55kg)
• Stainless Steel 143 lbs. (66kg)
*Add 40 lbs for cast iron center section
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°C32°F 0°C
Polypropylene: Athermoplastic 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°C32°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°C0°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: Athermoplastic 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°C32°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.
Metals:
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:
Ambient temperature range: -20°C to +40°C
Process temperature range: -20°C to +80°C for models rated as category 1 equipment
-20°C to +100°C for models rated as category 2 equipment
In addition, the ambient temperature range and the process temperature range do not exceed the operating temperature range of the applied non-metallic parts as listed in the manuals of the pumps.
ATEX Detail
BAR
0
1
2
3
4
5
6
7
PSI
8
9
10
20(34)
80(135.9)
40 PSI
(2.72 BAR)
60 PSI
(4.08 BAR)
80 PSI
(5.44 BAR)
125 PSI
(8.5 BAR
)
AIR CONSUMPTION
SCFM (M
3
/hr)
HEAD
MODEL HDB2 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%.
0
20
40
60
80
100
120
0 20 40 60 80 100 120 140
60(101.9)
100(170)
10(17) 40(68)
(1.36 BAR)
20 PSI Air Inlet Pressure
100 PSI
(6.8 BAR)
U.S. Gallons per minute
Liters per minute
CAPACITY
0 100 150 200 250 35050 300 400 450 500 550
MODEL SPECIFIC UNIVERSAL ALL AODD
1: PUMP SPECS
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om
3 • Model HDB2/HDB50
hdb2dl3sm-rev0817
HDB2 & HDB50, Down Ported
Dimensions are ± .13" (3mm). Figures in parenthesis = millimeters
Model HDB2-A features 2" NPT threaded connections.
Model HDB50-A features 2" BSP Tapered connections.
3.44”
87
15.19”
38623.32 592
15.63
397
DISCHARGE PORT
2" NPT [2" BSP]
SUCTION PORT
2" NPT [2" BSP]
14.50
368 12.50 31810.50 267
8.63
219
10.63
270
4.38
111
8X
.44
11
MOUNTING HOLES
17.22
437
EXHAUST PORT
1" NPT
.18
5
16.26
413 23.32 592
9.58
243
14.88”
378
1.94”
49
15.33
389
11.49
292
15.72
399
AIR INLET
3/4" NPT
HORIZONTAL SUCTION
AND DISCHARGE
VERTICAL SUCTION
AND DISCHARGE
.18
5
23.32
592
8.09
206
14.88”
378
1.94”
49
16.26
413
11.49
292
15.72
399
AIR INLET
3/4" NPT
Dimensional Drawings
MODEL SPECIFIC
1: PUMP SPECS
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpip erpum p.com Model HDB2/HDB50 • 4
hdb2dl3sm-rev0817
HDB2 & HDB50, Top Ported
Dimensions are ± .13" (3mm). Figures in parenthesis = millimeters
Model HDB2-A features 2" NPT threaded connections.
Model HDB50-A features 2" BSP Tapered connections.
20.88”
530
1.77
45
9.13”
232
22.44”
570
DISCHARGE PORT
2" NPT [2" BSP]
SUCTION PORT
2" NPT [2" BSP]
10.63
270
3.52
89
12.50
31810.50 267
.44
11
MOUNTING HOLES
8.63
219
14.50
368
EXHAUST PORT
1" PORT
.18
57.06
179
22.44”
570
7.56”
192
14.88”
378
9.58
243
14.13
359
11.49
292
15.72
399
15.33
389
AIR INLET
3/4" NPT
HORIZONTAL SUCTION
AND DISCHARGE PORTING
.18
57.56” 192 7.06
179
14.13
359
14.88”
378
8.09
206
9.97
253
11.49
292
15.72
399
AIR INLET
3/4" NPT
VERTICAL SUCTION
AND DISCHARGE PORTING
Dimensional Drawings
2: INSTAL & OP
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om
5 • Model HDB2/HDB50
hdb2dl3sm-rev0817
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
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om Model HDB2/HDB50 • 6
hdb2dl3sm-rev0817
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
Available Accessories:
1. Surge Suppressor
2. Filter/Regulator
3. Air Dryer
1
2
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
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om
7 • Model HDB2/HDB50
hdb2dl3sm-rev0817
Troubleshooting Guide
For additional troubleshooting tips contact After Sales Support at [email protected] or 419-524-8388
Symptom: Potential Cause(s): Recommendation(s):
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
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om Model HDB2/HDB50 • 8
hdb2dl3sm-rev0817
Troubleshooting Guide
Composite Repair Parts Drawing
476.247.000 Air End Kit
Sleeve and Spool Set, O-rings, Bumpers, U-Cup Seals,
and Gaskets.
476.245.354 Wet End Kit
Santoprene Diaphragms, Santoprene Balls, Santoprene
Wear Pads, Conductive PTFE Seat Gaskets,
Fiber Manifold Gaskets, Nitrile O-rings
476.245.360 Wet End Kit
Nirtile Diaphragms, Weighted Nitrile Balls, Conductive
Nitrile Seat Gaskets, Fabric Manifold Gaskets, Nitrile
O-Rings, Nitrile Wear Pads
476.245.364 Wet End Kit
EPDM Diaphragms, EPDM Balls, Conductive PTFE Seat
Gaskets, Fabric Manifold Gaskets, Nitrile O-rings,
EPDM Wear Pads
476.245.365 Wet End Kit
Neoprene Diaphragms, Weighted Neoprene Balls,
Conductive Neoprene Seat Gaskets, Fabric Manifold
Gaskets, Nitrile O-rings, Neoprene Wear Pads
476.245.644 Wet End Kit
Santoprene Diaphragms, PTFE Balls, Conductive PTFE
Seat Gaskets, PTFE Manifold Gaskets,
PTFE Encapsulated O-rings, EPDM Wear Pads
476.245.633 Wet End Kit
FKM Diaphragms, FKM Wear Pads, PTFE Balls, Conductive
PTFE Seat Gaskets, FKM Seals, PTFE Encapsulated O-rings
476.043.635 Wet End Kit
Neoprene Diaphragms, and PTFE Overlay Diaphragm, Balls,
Sealing Rings, O-rings, & Gaskets
476.043.663 Wet End Kit
Hytrel Diaphragms, and PTFE Overlay Diaphragm, Balls,
Sealing Rings, O-rings, & Gaskets
Service & Repair Kits
1
3
4
5
6
7
8
13
10
11
12
10
10
12
9
14
13
15
16
16
17
18
19
22
21
20
23
24
25
26
2
2
26
43
49
47
50
28
27
29
26
26
47
30
31
31
32
33
35
35
32
34
37
36
39
41
40
42
44
45
46
50
51
51
32
51
51
51
52
54
53
54
55
TOP PORTED
MODELS
DOWN PORTED
MODELS
38
ITEM NO. PART NUMBER DESCRIPTION QTY.
1 031.212.156 ASSEMBLY, MAIN AIR VALVE 1
2
050.XXX.XXX BALL, CHECK 4
3
070.006.170 BUSHING 2
4
095.073.001 ASSEMBLY, PILOT VALVE 1
5
114.002.XXX BRACKET, INTERMEDIATE 1
6
115.057.080 BRACKET, MOUNTING, BOTTOM PORT 2
7
132.002.360 BUMPER, DIAPHRAGM 2
8
135.016.162 BUSHING, THREADED 2
9
170.024.330 CAPSCREW, HEX HD, 7/16-14 X 1 4
10
170.030.330 CAPSCREW, HEX-HD 1/2-13 X 2.00 8
11
170.045.330 CAPSCREW, HEX-HD, 5/16-18 X 1.25 4
12
170.058.330 CAPSCREW, HEX-HD, 7/16-14 X 1.25 4
13
170.060.330 CAPSCREW, HEX HD 7/16-14 X 2.00 16
14
196.001.XXX CHAMBER, INNER 2
15
196.035.XXX CHAMBER, OUTER 2
16 286.007.XXX DIAPHRAGM 2
17
286.020.604 DIAPHRAGM, OVERLAY 2
18
286.118.000 DIAPHRAGM, SYNTHESIS 2
19
312.033.XXX ELBOW, MANIFOLD 2
20
334.025.XXX FLANGE, PORTING 2
21
334.026.XXX FLANGE, SUCTION 1
22
334.027.XXX FLANGE, PORTING, DISCHARGE 1
23
360.041.379 GASKET, PILOT VALVE 1
24
360.048.425 GASKET, AIR VALVE 1
25
360.049.XXX GASKET, MANIFOLD 2
26
360.117.XXX GASKET, MANIFOLD 4
27
518.027.XXX MANIFOLD 1
28
530.033.000 MUFFLER 1
29
545.004.330 NUT, HEX, 5/16-18 2
30
545.005.330 NUT, HEX 3/8-16 4
31
545.007.330 NUT, HEX - 7/16-14 12
32
545.008.XXX NUT, HEX 1/2-13 12
33
560.001.360 O-RING 2
34
560.022.360 O-RING 2
35
560.XXX.XXX O-RING 2
36
570.009.XXX PAD, WEAR 2
37
612.XXX.XXX PLATE, DIAPHRAGM, OUTER 2
38
612.047.330 PLATE, DIAPHRAGM 2
39
612.215.330 PLATE, INNER DIAPRAGM 2
40
618.003.XXX PLUG, PIPE, 1/4 4
41
618.003.330 PLUG, PIPE, 1/4" 2
42
620.011.114 PLUNGER, ACTUATOR 2
43
675.013.XXX RING, SEALING 2
44
685.007.120 ROD, DIAPHRAGM 1
45
685.032.080 ROD, CONNECTING 1
46
720.004.360 SEAL, U-CUP 2
47
722.106.XXX SEAT 2
48
807.026.330 STUD, DIAPHRAGM PLATE 2
49
807.038.330 STUD, 3/8-16 X 2.75 4
50
807.039.330 STUD, 1/2-13 12
51
900.003.330 WASHER, LOCK, 1/2 20
52
900.004.330 WASHER, LOCK - 5/16 2
53
900.005.330 WASHER, LOCK, 3/8" 4
54
900.006.330 WASHER, LOCK, 7/16 8
55
115.053.080 BRACKET, MOUNTING, TOP PORT 2
TORQUE: 360 IN-LBS
(40 N-m)
TORQUE: 480 IN-LBS
(54 N-m)
MODEL SPECIFIC
3: EXP VIEW
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om Model HDB2/HDB50 • 9
hdb2dl3sm-rev0817
Composite Repair Parts List
23 360.041.379 Gasket, Pilot Valve 1
24 360.048.425 Gasket, Air Valve 1
25 360.049.425 Gasket, Manifold - Fiber 2
360.049.603 Gasket, Manifold - Gylon 2
26 360.050.379 Gasket, Manifold - Conductive Buna 4
360.050.384 Gasket, Manifold - Conductive Neoprene 4
360.050.608 Gasket, Manifold - Conductive PTFE 4
27 518.027.156 Manifold (w/ alum wetted) Includes items #49 & #50 1
518.027.010 Manifold (w/ cast iron wetted)Includes items #49 & #50 1
518.027.110 Manifold (w/ stainless wetted)Includes items #49 & #50 1
518.027.112 Manifold (w/ alloy-C wetted) Includes items #49 & #50 1
28 530.033.000 Mufer, Metal 1
29 545.004.330 Nut, Hex 5/16-18 (down ported units only) 2
30 545.005.330 Nut, Hex 3/8-16 4
31 545.007.330 Nut, Hex 7/16-14 12
32 545.008.330 Nut, Hex 1/2 x 13 12
33 560.001.360 O-ring 2
34 560.022.360 O-ring 2
35 560.047.360 O-ring 2
560.060.611 O-ring (FKM / PTFE units) 2
36 570.009.360 Pad, Wear - Buna 2
570.009.363 Pad, Wear - FKM 2
570.009.364 Pad, Wear - EPDM/Santoprene 2
570.009.365 Pad, Wear - Neoprene 2
37 612.039.157 Plate, Outer Diaphragm Assy (w/ aluminum wetted) 2
612.039.010 Plate, Outer Diaphragm Assy (w/ cast iron wetted) 2
612.097.110 Plate, Outer Diaphragm Assy (w/ stainless wetted) 2
612.097.112 Plate, Outer Diaphragm Assy (w/ alloy-c wetted) 2
38 612.047.330 Plate, Inner Diaphragm 2
39 612.215.330 Plate, Inner Diaphragm (w/ Synthesis Diaphs item #18) 2
40 618.003.330 Plug, Pipe 1/4" (w/ aluminum / cast iron wetted) 4
618.003.110 Plug, Pipe 1/4" (w/ stainless wetted) 4
618.003.112 Plug, Pipe 1/4" (w/ alloy-c wetted) 4
41 618.003.330 Plug, Pipe 1/4" (w/ aluminum / cast iron wetted) 2
42 620.011.114 Plunger, Actuator 2
43 675.013.360 Ring, Sealing - Buna 2
675.013.363 Ring, Sealing - FKM 2
675.013.364 Ring, Sealing - EPDM 2
675.013.365 Ring, Sealing - Neoprene 2
675.013.600 Ring, Sealing - PTFE 2
44 685.007.120 Rod, Diaphragm 1
45 685.032.080 Rod, Connecting, Foot Bracket 1
46 720.004.360 Seal, U-Cup 2
47 722.097.110 Seat, Check Valve 2
722.097.112 Seat, Check Valve (w/ alloy-c wetted) 2
48 807.026.330 Stud, Diaphragm Plate (not shown - included with #37) 2
49 807.038.330 Stud, Threaded-3/8", Manifold (included with #27) 4
50 807.039.330 Stud, Threaded-1/2", Manifold (included with #27) 12
51 900.003.330 Washer, Lock 1/2" 20
52 900.004.330 Washer, Lock 5/16" (down ported only) 2
53 900.005.330 Washer, Lock 3/8" 6
54 900.006.330 Washer, Lock 7/16" (side ported units) 8
55 115.053.080 Bracket, Leg (Top Ported) 2
Item Part Number Description Qty.
1* 031.212.156 Air Valve Assy (Aluminum Center - see pg #11 for
details) 1
031.212.010 Air Valve Assy (Cast Iron Center) 1
031.212.001 Air Valve Assy (Alum Center SS/BRASS Slv Spool-
High Clearance) 1
031.212.004 Air Valve Assy (Alum Center SS/BRASS Slv-Spool) 1
031.213.156 Air Valve Assy (Alum Center - stroke Indicator) 1
031.213.010 Air Valve Assy (Cast Iron Center - stroke Indicator) 1
2 050.017.354 Ball, Check - Santoprene 4
050.017.360W Ball, Check - Buna (weighted) 4
050.017.363 Ball, Check - FKM 4
050.017.364W Ball, Check - EPDM (weighted) 4
050.017.365W Ball, Check - Neoprene (weighted) 4
050.018.600 Ball, Check - PTFE 4
3 070.006.170 Bushing, Intermediate (included in item #5) 2
4 095.073.001 Pilot Valve Assy 1
5 114.002.156 Intermediate (w/ aluminum center) 1
114.002.010 Intermediate (w/ cast iron center) 1
6 115.057.080 Bracket, Leg (Down Ported) 2
7 132.002.360 Bumper, Diaphragm 2
8 135.016.162 Bushing, Plunger 2
9 170.024.330 Capscrew, Hx-Hd 7/16-14 x 1.00 4
10 170.030.330 Capscrew, Hx-Hd 1/2-13 x 2.00 8
11 170.045.330 Capscrew, Hx-Hd 5/16-18 x 1.25 4
12 170.058.330 Capscrew, Hx-Hd 7/16-14 x 1.25 4
13 170.060.330 Capscrew, Hx-Hd 7/16-14 x 2.00 16
14 196.001.157 Chamber, Inner (w/ aluminum center) Includes #41 2
196.001.010 Chamber, Inner (w/ cast iron center) Includes #41 2
15 196.035.156 Chamber, Outer (w/ aluminum wetted) Includes #41 2
196.035.010 Chamber, Outer (w/ cast iron wetted) Includes #40 2
196.035.110 Chamber, Outer (w/ stainless wetted) Includes #40
196.035.112 Chamber, Outer (w/ alloy-C wetted) Includes #40
16 286.007.354 Diaphragm - Santoprene 2
286.007.356 Diaphragm - Hytrel
286.007.360 Diaphragm - Buna 2
286.007.363 Diaphragm - FKM 2
286.007.364 Diaphragm - EPDM 2
286.007.365 Diaphragm - Neoprene 2
17 286.020.604 Diaphragm, Overlay - PTFE 2
18 286.118.000 Diaphragm, Synthesis - One Piece PTFE (uses item #39) 2
19 312.033.156 Elbow, Manifold (w/ aluminum wetted) 2
312.033.010 Elbow, Manifold (w/ cast iron wetted) 2
312.033.110 Elbow, Manifold (w/ stainless wetted) 2
312.033.112 Elbow, Manifold (w/ alloy-C wetted) 2
20 334.025.156 Porting Flange, Threaded NPT (w/ aluminum wetted) 2
334.025.010 Porting Flange, Threaded NPT (w/ cast iron wetted) 2
334.025.110 Porting Flange, Threaded NPT (w/ stainless wetted) 2
334.025.112 Porting Flange, Threaded NPT (w/ alloy-C wetted) 2
334.025.156E Porting Flange, Threaded BSPT (w/ aluminum wetted) 2
334.025.010E Porting Flange, Threaded BSPT (w/ cast iron wetted) 2
334.025.110E Porting Flange, Threaded BSPT (w/ stainless wetted) 2
334.025.112E Porting Flange, Threaded BSPT (w/ alloy-C wetted) 2
21 334.026.156 Flange, Suction (w/ aluminum wetted) 1
334.026.010 Flange, Suction (w/ cast iron wetted) 1
334.026.110 Flange, Suction (w/ stainless wetted) 1
334.026.112 Flange, Suction (w/ alloy-C wetted) 1
22 334.027.156 Flange, Discharge (w/ aluminum wetted) 1
334.027.010 Flange, Discharge (w/ cast iron wetted) 1
334.027.110 Flange, Discharge (w/ stainless wetted) 1
334.027.112 Flange, Discharge (w/ alloy-C wetted) 1
LEGEND:
= Items contained within Air End Kits
= Items contianed within Wet End Kits
* Air End Kit only 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
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om
10 • Model HDB2/HDB50
hdb2dl3sm-rev0817
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.....CopperAlloy
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 PolymerCorp.
• 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.
UNIVERSAL ALL SP
3: EXP VIEW
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om Model HDB2/HDB50 • 11
hdb2dl3sm-rev0817
Air Distribution Valve Assembly
MAIN AIR VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
1 031.212.156 Air Valve Assembly 1
1-A 095.043.156 Body, Air Valve 1
1-B 031.209.000 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 165.011.157 End Cap 2
1-G 170.032.330 Hex Head Capscrew 8
FOR CAST IRON CENTERS ONLY
Item Part Number Description Qty
1 031.212.010 Air Valve Assembly 1
1-A 095.043.010 Body, Air Valve 1
1-B 031.209.000 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
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om
12 • Model HDB2/HDB50
hdb2dl3sm-rev0817
Pilot Valve Assembly
PILOT VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
4 095.073.001 Pilot Valve Assembly 1
4-A 095.070.558 Valve Body 1
4-B 755.025.000 Sleeve (With O-Rings) 1
4-C 560.033.360 O-Ring (Sleeve) 4
4-D 775.026.000 Spool (With O-Rings) 1
4-E 560.023.360 O-Ring (Spool) 2
4-F 675.037.080 Retaining Ring 1
4-A
4-F
4-D
4-B
4-C
4-E
Pilot Valve Servicing
With Pilot Valve removed from pump.
Step 1: Remove snap ring (4-F).
Step 2: Remove sleeve (4-B), inspect O-Rings (4-C),
replace if required.
Step 3: Remove spool (4-D) from sleeve (4-B),
inspect O-Rings (4-E), replace if required.
Step 4: Lightly lubricate O-Rings (4-C) and (4-E).
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
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

sa ndpi perp ump.c om Model HDB2/HDB50 • 13
hdb2dl3sm-rev0817
Pilot Valve Assembly
Step 1: With manifolds and outer chambers
removed, remove diaphragm assemblies from
diaphragmrod.DO NOT useapipewrenchorsimilar
tool to remove assembly from rod. Flaws in the rod
surface may damage bearings and seal. Soft jaws
in a vise are recommended to prevent diaphragm
rod damage.
Step 1.A: NOTE: Not all inner diaphragm plates
are threaded. Some models utilize a through hole
in the inner diaphragm plate. If required to separate
diaphragm assembly, place assembly in a vise,
gripping on the exterior cast diameter of the inner
plate. Turn the outer plate clockwise to separate the
assembly.
Always inspect diaphragms for wear cracks or
chemical attack. Inspect inner and outer plates for
deformities, rust scale and wear. Inspect intermediate
bearings for elongation and wear. Inspect diaphragm
rod for wear or marks.
Clean or repair if appropriate. Replace as required.
Step 2: Reassembly: There are two different types
ofdiaphragmplateassembliesutilizedthroughoutthe
Sandpiper product line: Outer plate with a threaded
stud, diaphragm, and a threaded inner plate.
Outer plate with a threaded stud, diaphragm, and
an inner plate with through hole. Secure threaded
innerplateinavise.Ensure thattheplates arebeing
installedwiththeouterradiusagainstthe diaphragm.
Step 3: Lightly lubricate, with a compatible material,
theinnerfacesofbothouterandinnerdiaphragmplates
when using on non Overlay diaphragms (For EPDM
water is recommended). No lubrication is required.
Step 4: Push the threaded outer diaphragm
plate through the center hole of the diaphragm.
Note: Most diaphragms are installed with the
natural bulge out towards the fluid side. S05,
S07, and S10 non–metallic units are installed
with the natural bulge in towards the air side.
Step 5: Thread or place, outer plate stud into
the inner plate. For threaded inner plates, use a
torque wrench to tighten the assembly together.
Torque values are called out on the exploded view.
Repeat procedure for second side assembly.
Allow a minimum of 15 minutes to elapse after
torquing,thenre-torquetheassemblytocompensate
for stress relaxation in the clamped assembly.
Step 6: Thread one assembly onto the diaphragm
rod with sealing washer (when used) and bumper.
Step 7: Install diaphragm rod assembly
into pump and secure by installing the outer
chamber in place and tightening the capscrews.
Step 8: On opposite side of pump, thread the
remainingassemblyontothediaphragmrod.Usinga
torquewrench,tightentheassemblytothediaphragm
rod.Aligndiaphragmthroughboltholes,alwaysgoing
forwardpasttherecommendedtorque.Torquevalues
arecalledout ontheexplodedview.NEVER reverse
to align holes, if alignment cannot be achieved
without damage to diaphragm, loosen complete
assemblies, rotate diaphragm and reassemble as
described above.
Step 9: Complete assembly of entire unit.
One Piece Diaphragm Servicing (Bonded PTFE
with integral plate) The One Piece diaphragm has
a threaded stud installed in the integral plate at the
factory. The inner diaphragm plate has a through
hole instead of a threaded hole. Place the inner
plate over the diaphragm stud and thread the rst
diaphragm / inner plate onto the diaphragm rod only
until the inner plate contacts the rod. Do not tighten. A
smallamountofgreasemay be applied betweenthe
inner plate and the diaphragm to facilitate assembly.
Insert the diaphragm / rod assembly into the pump
and install the outer chamber. Turn the pump over
and thread the second diaphragm / inner plate onto
the diaphragm rod. Turn the diaphragm until the
inner plate contacts the rod and hand tighten the
assembly. Continue tightening until the bolt holes
alignwiththeinnerchamberholes. DO NOT LEAVE
THE ASSEMBLY LOOSE.
Diaphragm Servicing
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
therecommendationsstated inthis
manual will damage the pump, and
void factory warranty.
UNIVERSAL ALL SP
5: WET END
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

Declaration of Conformity
Signature of authorized person Date of issue
Authorised Representative:
IDEX Pump Technologies
R79 Shannon Industrial Estate
Shannon, Co. Clare, Ireland
Attn: Barry McMahon
Revision Level: F
Title
Director of Engineering
October 20, 2005
Date of revision
February 27, 2017
Manufacturer: Warren Rupp, Inc., 800 N. Main Street
Mansfield, Ohio, 44902 USA
Certifies that Air-Operated Double Diaphragm Pump Series: HDB, HDF, M Non-Metallic,
S Non-Metallic, M Metallic, S Metallic, T Series, G Series, U Series, EH and SH High Pressure,
RS Series, W Series, SMA and SPA Submersibles, and Tranquilizer®Surge Suppressors comply with
the European Community Directive 2006/42/EC on Machinery, according to Annex VIII.
This product has used Harmonized Standard EN809:1998+A1:2009, Pumps and Pump Units
for Liquids - Common Safety Requirements, to verify conformance.
5 - YEAR Limited Product Warranty
Warren Rupp, Inc. (“Warren Rupp”) warrants to the original end-use purchaser that no product sold by Warren Rupp that
bears a Warren Rupp brand shall fail under normal use and service due to a defect in material or workmanship within five
years from the date of shipment from Warren Rupp’s factory. Warren Rupp brands include Warren Rupp®,SANDPIPER®,
SANDPIPER Signature SeriesTM, MARATHON®, Porta-Pump®, SludgeMaster™ and Tranquilizer®.
The use of non-OEM replacement parts will void (or negate) agency certifications, including CE,ATEX, CSA, 3Aand
EC1935 compliance (Food Contact Materials). Warren Rupp, Inc. cannot ensure nor warrant non-OEM parts to meet the
stringent requirements of the certifying agencies.
~ See sandpiperpump.com/content/warranty-certifications for complete warranty,
including terms and conditions, limitations and exclusions. ~
UNIVERSAL ALL SP
7: WARRANTY
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910

Manufacturer:
Warren Rupp, Inc.
A Unit of IDEX Corportion
800 North Main Street
P.O. Box 1568
Mansfield, OH 44902 USA
EC / EU Declaration of Conformity
The objective of the declaration described is in conformity with the relevant Union harmonisation
legislation: Directive 94/9/EC (until April 19, 2016) and Directive 2014/34/EU (from April 20, 2016).
The harmonised standards have been compared to the applicable standards
used for certification purposes and no changes in the state of the art technical
knowledge apply to the listed equipment.
AODD Pumps and Surge Suppressors
Technical File No.: 203104000-1410/MER
AODD (Air-Operated Double Diaphragm) Pumps
EC Type Examination Certificate No. Pumps: KEMA 09ATEX0071 X
DEKRA Certification B.V. (0344)
Meander 1051
6825 MJ Arnhem
The Netherlands
Applicable Standard:
EN13463-1: 2001
EN13463-5: 2003
EN60079-25: 2004
Harmonised Standard:
EN13463-1: 2009
EN13463-5: 2011
EN60079-25:2010
David Roseberry, Director of Engineering
DATE/APPROVAL/TITLE:
18 March 2016
Hazardous Locations Applied:
I M1 c
II 2 G Ex ia c IIC T5
II 2 D Ex c iaD 20 IP67 T100°C
II 2 G Eex m c II T5
II 2 D c IP65 T100°C
II 1 G c T5
II 1 D c T100°C
II 2 G c T5
II 2 D c T100°C
II 2 G c IIB T5
UNIVERSAL ALL SP
7: WARRANTY
Tel: [phone]
Fax: [phone]
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910