Sandpiper HDB2-A User manual

7/05 Model HDB2-A Page 1 Rev B
WARNING
HAZARD WARNING — POSSIBLE
EXPLOSION HAZARD can result if 1,1,1-
Trichloroethane, Methylene Chloride
or other Halogenated Hydrocarbon
solvents are used in pressurized fluid
systems having Aluminum or Galva-
nizedwettedparts.Death,seriousbodily
injury and/or property damage could
result. Consult with the factory if you
havequestionsconcerningHalogenated
Hydrocarbon solvents.
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.
WARNING
Take action to prevent static sparking.
Fire or explosion can result, especially
when handling flammable liquids. The
pump,piping,valves,containersorother
miscellaneous equipment must be
grounded. (See page 6)
BEFORE OPERATION
Before pump operation, inspect all
gasketed fasteners for looseness
causedby gasketcreep.Retorqueloose
fasteners to prevent leakage. Follow
recommendedtorquesstatedinthecard
attached to the new pump.
PLEASE NOTE!
The photos shown in this manual are for general instruction only. YOUR SPECIFIC
MODEL MAY NOT BE SHOWN. Always refer to the parts list and exploded view
drawing for your specific model when installing, disasembling or servicing your pump.
PRINCIPLE OF PUMP OPERATION
This ball check valve pump is powered by compressed air and is a 1:1 pressure
ratio design. The pump is alternately pressurize through the inner side of one
diaphragm chamber, while simultaneously exhausting the other inner chamber. Air
pressure causes the diaphragms, (which are connected by a common rod,) to move
endwise. Air pressure is applied over the entire surface of the diaphragm, while liquid
is discharged from the opposite side. The diaphragm operates under a balanced
condition during the discharge stroke, and the unit can be operated at discharge
heads over 200 feet (61 meters) of water head.
The diaphragms are connected by a common rod, secured by plates to the center
of the diaphragms. One diaphragm performs the discharge stroke, while the other is
pulled to perform the suction stroke in the opposite chamber.
For maximum diaphragm life, keep the pump as close to the liquid being pumped
as possible. Positive suction head in excess of 10 feet of liquid (3.048 meters) may
require a back pressure regulating device. This will maximize diaphragm life.
Alternate pressuring and exhausting of the diaphragm chamber is performed by
means of an externally mounted, pilot operated, four-way spool type air distribution
valve. When the spool shifts to one end of the valve body, inlet air pressure is applied
to one diaphragm chamber and the other diaphragm chamber exhausts air. When the
spool shifts to the opposite end of the valve body, the porting of chambers is reversed.
The air distribution valve spool is moved by an internal pilot valve which alternately
pressurizes one side of the air distribution valve spool, while exhausting the other side.
The pilot valve is shifted at each end of the diaphragm stroke by the diaphragm plate
coming in contact with the end of the pilot spool. This pushes the pilot valve into position
for shifting of the air distribution valve.
The chambers are manifolded together with a suction and discharge check valve
for each chamber which maintains flow in one direction through the pump.
INSTALLATION & START-UP
Locate the pump as close to the product being pumped as possible. Keep suction
line length and number of fittings to a minimum. Do not reduce line size.
For installations of rigid piping, short flexible sections of hose should be installed
between pump and piping. This reduces vibration and strain to the piping system. A
Warren Rupp Tranquilizer®surge suppressor is recommended to further reduce
pulsation in flow.
This pump was tested at the factory prior to shipment and is ready for operation.
It is self-priming from a dry start for suction lifts of 20 feet (6.096 meters) or less. For
suction lifts exceeding 20 feet of liquid, fill the chambers with liquid prior to priming.
AIR SUPPLY
Air supply pressures cannot exceed 125 psi (8.61 bar). Connect the pump air inlet
to an air supply of sufficient capacity and pressure required for desired performance.
When the air line is solid piping, use a short length of flexible hose [not less than
3/4" (19mm) in diameter] between pump and piping to eliminate strain to pipes.
SERVICE AND OPERASERVICE AND OPERA
SERVICE AND OPERASERVICE AND OPERA
SERVICE AND OPERATING MANUTING MANU
TING MANUTING MANU
TING MANUALAL
ALAL
AL
Model HDB2-AModel HDB2-A
Model HDB2-AModel HDB2-A
Model HDB2-A
Type 3
I M2 c/b T5
II 2GD b T5
CE
WARREN RUPP, INC. A Unit of IDEX Corporation • P.O. Box 1568 • Mansfield, Ohio 44901-1568 USA • [phone] • Fax [phone] • www.warrenrupp.com

7/05 Model HDB2-A Page 2 Rev B
AIR INLET & PRIMING
For start-up, open an air valve approximately 1/2" to 3/4" turn. After the unit primes,
an air valve can be opened to increase flow as desired. If opening the valve increases
cycling rate, but does not increase flow rate, cavitation has occurred, and the valve
should be closed slightly.
For the most efficient use of compressed air and the longest diaphragm life, throttle
the air inlet to the lowest cycling rate that does not reduce flow.
AIR EXHAUST
If a diaphragm fails, the pumped liquid or fumes can enter the air end of the pump,
and be exhausted into the atmosphere. When pumping hazardous or toxic materials,
pipe the exhaust to an appropriate area for safe disposition.
This pump can be submerged if materials of construction are compatible with the
liquid. The air exhaust must be piped above the liquid level. Piping used for the air
exhaust must not be smaller than 1" (2.54 cm). Reducing the pipe size will restrict air
flow and reduce pump performance .When the product source is at a higher level than
the pump (flooded suction), pipe the exhaust higher than the product source to prevent
siphoning spills.
Freezing or icing-up of the air exhaust can occur under certain temperature and
humidity conditions. Use of an air dryer unit should eliminate most icing problems.
BETWEEN USES
When used for materials that tend to settle out or transform to solid form, the pump
should be completely flushed after each use, to prevent damage. Product remaining
in the pump between uses could dry out or settle out. This could cause problems with
valves and diaphragms at re-start. In freezing temperatures, the pump must be drained
between uses in all cases.
CHECK VALVE SERVICING
For best priming and most efficient pumping performance, it is important to maintain
check valves and valve seats in good condition for proper sealing. Need for inspection
or service of ball valves is usually indicated by poor priming, unstable cycling, reduced
performance, or pump cycles but will not pump.
Inspection and service of check valves requires the removal of five hex nuts and
one capscrew for each set of check valves (i.e., suction & discharge), providing access
to the two ball valves and their valve seats. New ball valves are 35/8" (9.21 cm)
in diameter and will require replacement when worn to approximately 33/8" (8.57 cm)
diameter.
DIAPHRAGM SERVICING
Need for inspection or service of diaphragm is usually indicated when unit pumps
from one chamber only and air is discharged out pump discharge port or when liquid
being pumped is discharged through air exhaust port.
To service diaphragms remove two capscrews which secure the chamber to the
manifold assembly, and twelve hex nuts that secure the chamber to the main pump
assembly. To remove diaphragms, loosen diaphragm assembly by turning it out of the
diaphragm rod using a 11/8" (2.857 cm) socket or wrench. Removal of opposite outer
chamber will permit removal of second diaphragm assembly and diaphragm rod as
a unit.
To remove the diaphragm from the diaphragm assembly, hold the diaphragm rod
in a clamping device, making sure to protect the rod surface of shaft so as not to scratch
or mar it in any way. With a wrench turn the diaphragm assembly out of the diaphragm
rod. To disassemble the components, turn a 5/16-18 UNC capscrew by hand into the
tapped hole in the inner diaphragm plate. This will keep the plate from turning while
the capscrew is removed. To remove the capscrew, place the assembly in a vise so
the two protruding ends of screws are loose in the vise jaws (approximately 7/8" apart).
Turn the center screw loose from the back plate and the assembly will come apart.
REASSEMBLY
All procedures for reassembling the pump are the reverse of the disassembly
instructions with further instructions as shown:
Check valves.
Torquing the diaphragm.
CAUTION
In the event of diaphragm rupture,
pumped material may enter the air end
of the pump, and be discharged into the
atmosphere.If pumpingaproductwhich
is hazardous or toxic, the air exhaust
must be piped to an appropriate area for
safe disposition.
CAUTION
Before maintenance or repair, shut off
the compressed air line, bleed the
pressure, and disconnect the air line
from the pump. The discharge line may
be pressurized and must be bled of
its pressure. When used for toxic or
aggressive fluids, the pump should
always be flushed clean prior to
disassembly.

7/05 Model HDB2-A Page 3 Rev B
The diaphragm assemblies are to be installed with the natural bulge outward or
toward the head of the center screw. Make sure both plates are installed with outer
radii against the diaphragm. After all components are in position in a vise and hand
tight, set a torque wrench for 40 ft. pounds (54.23 Newton meters) using a 11/8" (2.857
cm) socket. After each diaphragm sub assembly has been completed, thread one
assembly into the diaphragm rod. Make sure the 5/16-18 UNC capscrew has been
removed from the inner plate and the diaphragm rod bumper is in place on the
diaphragm rod.
Install this sub assembly into the pump and secure by installing the outer chamber
in place and tightening the capscrews. This will hold the assembly in place while the
opposite side is installed. Install the second diaphragm assembly into the diaphragm
rod checking to see that the diaphragm rod bumper is in place. Tighten to 30 ft. lbs.
(40.67 Newton meters) torque before installing the outer chamber in place. If the holes
in the diaphragm flange do not align with the holes in the inner chamber flange, turn
the diaphragm assembly in the direction of tightening to align the holes so that the
capscrews can be inserted. This final torquing of the last diaphragm assembly will lock
the two diaphragm assemblies together. Secure the last
outer chamber by tightening down the securing nuts
gradually and evenly. This tightening procedure should
be done on both sides.
When reinstalling check valves, take care that the
seat gaskets are aligned properly before securing
porting flange in place.
A Note about Air Valve Lubrication
The SANDPIPER pump’s pilot valve and main air valve
assemblies are designed to operate WITHOUT
lubrication. This is the preferred mode of operation. There
may be instances of personal preference, or poor quality air supplies when lubrication
of the compressed air supply is required. The pump air system will operate with properly
lubricated compressed air supplies. Proper lubrication of the compressed air supply
would entail the use of an air line lubricator (available from Warren Rupp) set to deliver
one drop of 10 wt., non-detergent oil for every 20 SCFM of air the pump consumed at its
point of operation. Consult the pump’s published Performance Curve to determine this.
It is important to remember to inspect the sleeve and spool set routinely. It should
move back and forth freely. This is most important when the air supply is lubricated.
If a lubricator is used, oil accumulation will, over time, collect any debris from the
compressed air. This can prevent the pump from operating properly.
Water in the compressed air supply can create problems such as icing or freezing
of the exhaust air causing the pump to cycle erratically, or stop operating. This can be
addressed by using a point of use air dryer to supplement a plant’s air drying
equipment. This device will remove excess water from the compressed air supply and
alleviate the icing or freezing problem.
ESADS: Externally Serviceable Air Distribution System
Please refer to the exploded view drawing and parts list in the Service Manual
supplied with your pump. If you need replacement or additional copies, contact your
local Warren Rupp Distributor, or the Warren Rupp factory Literature Department at
the number shown below. To receive the correct manual, you must specify the MODEL
and TYPE information found on the name plate of the pump.
The main air valve sleeve and spool set is located in the valve body mounted on
the pump with four hex head capscrews. The valve body assembly is removed from
the pump by removing these four hex head capscrews.
With the valve body assembly off the pump, access to the sleeve and spool set is
made by removing four hex head capscrews (each end) on the end caps of the valve
body assembly. With the end caps removed, slide the spool back and forth in the
sleeve. The spool is closely sized to the sleeve and must move freely to allow for proper
pump operation. An accumulation of oil, dirt or other contaminants from the pump’s
air supply, or from a failed diaphragm, may prevent the spool from moving freely. This
can cause the spool to stick in a position that prevents the pump from operating. If this
is the case, the sleeve and spool set should be removed from the valve body for
cleaning and further inspection.
DANGER
Before doing any maintenance on
the pump, be certain all pressure
is completely vented from the
pump, suction, discharge, piping,
and all other openings and
connections. Be certain the air supply
is locked out or made nonoperational,
so that it cannot be started while
work is being done on the pump. Be
certain that approved eye protection
and protective clothing are worn at
all times in the vicinity of the pump.
Failure to follow these
recommendations may result in serious
injury or death.
Pilot valve.
Air valve body.

7/05 Model HDB2-A Page 4 Rev B
Remove the spool from the sleeve. Using an arbor press or bench vise (with an
improvised mandrel), press the sleeve from the valve body. Take care not to damage
the sleeve. At this point, inspect the o-rings on the sleeve for nicks, tears or abrasions.
Damage of this sort could happen during assembly or servicing. A sheared or cut
o-ring can allow the pump’s compressed air supply to leak or bypass within the air
valve assembly, causing the pump to leak compressed air from the pump air exhaust
or not cycle properly. This is most noticeable at pump dead head or high discharge
pressure conditions. Replace any of these o-rings as required or set up a routine,
preventive maintenance schedule to do so on a regular basis. This practice should
include cleaning the spool and sleeve components with a safety solvent or equivalent,
inspecting for signs of wear or damage, and replacing worn components.
To re-install the sleeve and spool set, lightly lubricate the o-rings on the sleeve with
an o-ring assembly lubricant or lightweight oil (such as 10 wt. air line lubricant). Press
the set into the valve body easily, without shearing the o-rings. Re-install one end cap,
gasket and bumper on the valve body. Using the arbor press or bench vise that was
used in disassembly, press the sleeve back into the valve body. You may have to clean
the surfaces of the valve body where the end caps mount. Material may remain from
the old gasket. Old material not cleaned from this area may cause air leakage after
reassembly. Take care that the bumper stays in place allowing the sleeve to press in
all the way. Re-install the spool, the opposite end cap, gasket and bumper on the valve
body. After inspecting and cleaning the gasket surfaces on the valve body and
intermediate, re-install the valve body on the pump using new gaskets. Tighten the
four hex head capscrews evenly and in an alternating cross pattern.
PILOT VALVE
The pilot valve assembly is accessed by removing the main air distribution valve
body from the pump and lifting the pilot valve body out of the intermediate housing.
Most problems with the pilot valve can be corrected by replacing the o-rings.
Always grease the spool prior to inserting it into the sleeve. If the sleeve is removed
from the body, reinsertion must be at the chamfered side. Grease the o-rings to slide
the sleeve into the valve body. Securely insert the retaining ring around the sleeve.
When reinserting the pilot valve, push both plungers (located inside the intermediate
bracket) out of the path of the pilot valve spool ends to avoid damage.
PILOT VALVE ACTUATOR
Bushings for the pilot valve actuators are threaded into the intermediate bracket
from the outside. The plunger may be removed for inspection or replacement. First
remove the air distribution valve body and the pilot valve body from the pump. The
plungers can be located by looking into the intermediate. It may be necessary to use
a fine piece of wire to pull them out. The bushing can be turned out through the inner
chamber by removing the outer chamber assembly. Replace the bushings if pins have
bent.
TROUBLESHOOTING
PROBLEM: Pump cycles but will not pump. (Note: higher suction lifts require faster
cycling speed for priming.)
POSSIBLE CAUSES:
A. Air leak in suction line.
B. Excessive suction lift.
C. Check valve not closing.
D. Leakage at joint of suction manifold or elbow flange.
E. Suction line plugged.
F. Diaphragm ruptured.
PROBLEM: Pump will not cycle. (Note: Always disconnect air supply to relieve air
pressure before disassembling any portion of pump.)
IMPORTANT
Before pump operation, all external
gasketed fasteners must be inspected
for looseness caused by gasket creep
afterleavingthefactory.Retorqueloose
fasteners to insure against leakage.
Follow recommended torques where
called out. (A card is attached to each
new pump stating this fact.)
This pump is pressurized internally with
air pressure during operation. Always
make certain that all bolting is in good
condition and that all of the correct
bolting is reinstalled during assembly.

7/05 Model HDB2-A Page 5 Rev B
POSSIBLE CAUSES:
A. Discharge hose or line plugged, or discharge head requirement greater than air
supply pressure. (Disconnect discharge line to check.)
B. Spool in air distribution valve not shifting. (Remove end cap and check spool —
must slide freely.)
C. Diaphragm ruptured. (Air will escape out discharge line in this case.)
D. Blockage in diaphragm chamber preventing movement. (Shut off air supply and
reopen after pressure is relieved.)
E. Plugged or dirty exhaust muffler.
PROBLEM: Uneven discharge flow. (Indicates one chamber not operating properly.)
POSSIBLE CAUSES:
A. Check valve not sealing properly in one chamber.
B. Diaphragm failure in one chamber.
C. Air leak at suction manifold joint or elbow flange one side.
D. Plugged or dirty muffler.
For additional information, see the Warren Rupp Troubleshooting Guide.
WARRANTY:
This unit is guaranteed for a period of five years against defective material and
workmanship.
RECOMMENDED WARREN RUPP ACCESSORIES
TO MAXIMIZE PUMP PERFORMANCE:
• Tranquilizer®Surge Suppressor: For nearly pulse-free flow.
• Warren Rupp Filter/Regulator: For modular installation and service
convenience.
• Warren Rupp Speed Control: For manual or programmable process
control. Manual adjustment or 4-20mA reception.
For more detailed information on these accessories,
contact your local Warren Rupp Factory-Authorized Distributor,
or Warren Rupp corporate headquarters.
Available Service Kits
Part No. Description
476-100-000 Air End Kit
Seals, O Rings, Gaskets, Sleeve and Spool Set, Pilot Valve
Assembly
476-043-354 Santoprene Diaphragms and Check Balls, Fibre Gaskets,
Nitrite O Rings
476-043-360 Buna Diaphragms, Check Balls and O Rings, Fibre Gaskets
476-043-364 EPDM Diaphragms and Check Balls, Fibre Gaskets, Nitrite O
Rings
476-043-365 Neopreme Diaphragms and Check Balls, Fibre Gaskets, Nitrite
O Rings
476-043-633 Viton Diaphragms, PTFE Check Balls, Gaskets and O Rings
476-043-635 PTFE Overlay Diaphragms, Check Balls, Gaskets and O Rings,
Neoprene Backup Diaphragm
476-043-636 Food Grade Nitrite Diaphragms, PTFE Check Balls, Gaskets
and O Rings

7/05 Model HDB2-A Page 6 Rev B
Grounding The Pump
Take action to prevent static sparking.
Fire or explosion can result, especially
when handling flammable liquids.The
pump, piping, valves, containers or
other miscellaneous equipment must
be grounded.
WARNING
To reduce the risk of static electrical sparking, this pump must be grounded.
Check the local electrical code for detailed grounding instruction and the
type of equipment required, or in the absence of local codes, an industry or
nationally recognized code having juristiction over specific installations.
This 8 foot long (244 centimeters) Ground
Strap, partnumber 920-025-000 can be
ordered as a service item.
One eyelet is fastened to the pump hardware.
One eyelet is installed to a true earth ground.

7/05 Model HDB2-A Page 7 Rev B
ITEM TOTAL
NO. PART NUMBER DESCRIPTION RQD.
1 114.002.010. Bracket Assembly, Intermediate 1
1 114.002.156. Bracket Assembly, Intermediate 1
2 070.006.170. Bearing, Sleeve 2
3 720.004.360. Seal, U-Cup 2
4 135.016.162. Bushing Assembly, Threaded 2
5 560.001.360. O-Ring 2
6 620.011.114. Plunger, Actuator 2
7 095.073.000. Pilot Valve Body Assy.11
095.115.000. Pilot Valve Body Assy. (CI Only) 1
7-A 095.070.551. Pilot Valve Body 1
7-B 755.025.000. Sleeve (w/O-Ring) 1
7-C 560.033.360. O-Ring (Sleeve) 4
7-D 775.026.000. Spool (w/O-Ring) 1
7-E 560.023.360. O-Ring (Spool) 2
7-F 675.037.080. Retaining Ring 1
8 360.041.379. Gasket, Valve Body 1
9 530.036.000. Muffler, Exhaust 1
10 031.012.000. Sleeve & Spool Set 1
11 095.043.010. Body, Valve 1
095.043.156. Body, Valve 1
12 132.014.358. Bumper, Valve Spool 2
13 165.011.010. Cap, End 2
165.011.157. Cap, End 2
14 360.010.425. Gasket, End Cap 2
15 560.020.360. O-Ring 6
16 170.032.330. Capscrew, Hex Head 8
17 170.045.330. Capscrew, Hex Head 4
18 360.048.425. Gasket, Valve Body 1
19 132.002.360. Bumper, Diaphragm 2
20 560.022.360. O-Ring 2
21 685.007.120. Rod, Diaphragm 1
22 612.047.330. Plate, Diaphragm — Inner 2
25 170.060.330. Capscrew, Hex Head 16
26 170.024.330. Capscrew, Hex Head 4
27 170.058.330. Capscrew, Hex Head 4
28 170.030.330. Capscrew, Hex Head 8
29 807.038.330. Stud 4
30 807.039.330. Stud 12
31 900.005.330. Washer, Lock 4
32 900.003.330. Washer, Lock 20
33 900.006.330. Washer, Lock 12
34 545.007.330. Nut, Hex 12
35 545.008.330. Nut, Hex 12
36 545.005.330. Nut, Hex 4
37 196.001.010. Chamber, Inner 2
196.001.157. Chamber, Inner 2
38 115.053.080. Bracket, Foot Mounting 2
39 560.047.360. O-Ring 2
560.060.611. O-Ring 2
40 685.032.080. Rod, Connector 1
41 722.035.110. Seat Assembly, Ball Check Valve 2
(for use with PTFE balls only)
722.035.112. Seat Assembly, Ball Check Valve 2
(for use with PTFE balls only)
722.097.110. Seat Assembly
722.097.112. Seat Assembly
42 286.007.360. Diaphragm 2
Repair Parts shown in bold face (darker)
type are more likely to need replacement
after extended periods of normal use.
They are readily available from most Warren
Rupp distributors. The pump owner may
prefer to maintain a limited inventory of these
parts in his own stock to reduce repair
downtime to a minimum.
IMPORTANT: When ordering repair parts
always furnish pump model number, serial
number and type number.
MATERIAL CODES
The Last 3 Digits of Part Number
000... Assembly, sub-assembly; and some
purchaseditems
010... CastIron
015... DuctileIron
025... Music Wire
080... CarbonSteel,AISIB-1112
110... AlloyType316StainlessSteel
112... Alloy“C”
114... 303StainlessSteel
115... 301/302/304StainlessSteel
120... 416StainlessSteel(WroughtMartensitic)
148... HardcoatAnodizedAluminum
150... 6061-T6Aluminum
151... 6063-T6Aluminum
154... Almag35Aluminum
155or156...356-T6Aluminum
157... DieCastAluminumAlloy#380
159... AnodizedAluminum
162... Brass,Yellow,ScrewMachineStock
170... Bronze,BearingType,OilImpregnated
180... CopperAlloy
330... PlatedSteel
331... ChromePlatedSteel
332... ElectrolessNickelPlated
335... GalvanizedSteel
354...InjectionMolded#203-40Santoprene—
Duro40D+ /-5.Color coded: RED
356... Hytrel
357... Rupplon(UrethaneRubber)
360... Buna-NRubber.Colorcoded:RED
363... Viton(Fluorel).Colorcoded:YELLOW
364... E.P.D.M.Rubber.Colorcoded:BLUE
365... NeopreneRubber.Colorcoded:GREEN
366... FoodGradeNitrile.Colorcoded:WHITE
375... Fluorinated Nitrile
379... Conductive Nitrile
384... COnductive Neoprene
405... Cellulose Fibre
408... CorkandNeoprene
425... CompressedFibre
440... VegetableFibre
500... Delrin500
501... Delrin570
520... InjectionMoldedPVDF,NaturalColor,
FoodGrade/USDAAcceptable
540... Nylon
550... Polyethylene
551... Polypropylene
555... PVC(PolyvinylChloride)
580... Ryton
600... Virgin PTFE
603... BlueGylon
604... Virgin PTFE — Diaphragm
608... Conductive PTFE
610... Encapsulated Silicon
611... VirginPTFE EncapsulatedViton
Delrin, Virgin PTFE, Hytrel, and Viton are
registeredtradenamesofE.I.DuPont.
Gylonisa registeredtradenameofGarlock,Inc.
Warren Rupp, Rupplon, and SANDPIPER are registered
tradenamesofWarrenRupp,Inc.
Rytonisa registeredtradenameof Phillips
ChemicalCompany.
LoctiteisaregisteredtradenameofLoctiteCorporation.
SERVICE AND OPERASERVICE AND OPERA
SERVICE AND OPERASERVICE AND OPERA
SERVICE AND OPERATING MANUTING MANU
TING MANUTING MANU
TING MANUALAL
ALAL
AL
Model HDB2-AModel HDB2-A
Model HDB2-AModel HDB2-A
Model HDB2-A
Type 3
I M2 c/b T5
II 2GD b T5
CE

7/05 Model HDB2-A Page 8 Rev B
Repair Parts shown in bold face (darker)
type are more likely to need replacement
after extended periods of normal use.
They are readily available from most Warren
Rupp distributors. The pump owner may
prefer to maintain a limited inventory of these
parts in his own stock to reduce repair
downtime to a minimum.
IMPORTANT: When ordering repair parts
always furnish pump model number, serial
number and type number.
MATERIAL CODES
The Last 3 Digits of Part Number
000... Assembly, sub-assembly; and some
purchaseditems
010... CastIron
015... DuctileIron
025... Music Wire
080... CarbonSteel,AISIB-1112
110... AlloyType316StainlessSteel
112... Alloy“C”
114... 303StainlessSteel
115... 301/302/304StainlessSteel
120... 416StainlessSteel(WroughtMartensitic)
148... HardcoatAnodizedAluminum
150... 6061-T6Aluminum
151... 6063-T6Aluminum
154... Almag35Aluminum
155or156...356-T6Aluminum
157... DieCastAluminumAlloy#380
159... AnodizedAluminum
162... Brass,Yellow,ScrewMachineStock
170... Bronze,BearingType,OilImpregnated
180... CopperAlloy
330... PlatedSteel
331... ChromePlatedSteel
332... ElectrolessNickelPlated
335... GalvanizedSteel
354...InjectionMolded#203-40Santoprene—
Duro40D+ /-5.Color coded: RED
356... Hytrel
357... Rupplon(UrethaneRubber)
360... Buna-NRubber.Colorcoded:RED
363... Viton(Fluorel).Colorcoded:YELLOW
364... E.P.D.M.Rubber.Colorcoded:BLUE
365... NeopreneRubber.Colorcoded:GREEN
366... FoodGradeNitrile.Colorcoded:WHITE
375... FluorinatedNitrile
405... CelluloseFibre
408... CorkandNeoprene
425... CompressedFibre
440... VegetableFibre
500... Delrin500
501... Delrin570
520... InjectionMoldedPVDF,NaturalColor,
FoodGrade/USDAAcceptable
540... Nylon
550... Polyethylene
551... Polypropylene
555... PVC(PolyvinylChloride)
580... Ryton
600... Virgin PTFE
603... BlueGylon
604... Virgin PTFE — Diaphragm
610... EncapsulatedSilicon
611... VirginPTFE EncapsulatedViton
Delrin, Virgin PTFE, Hytrel, and Viton are
registeredtradenamesofE.I.DuPont.
Gylonisa registeredtradenameofGarlock,Inc.
Warren Rupp, Rupplon, and SANDPIPER are registered
tradenamesofWarrenRupp,Inc.
Rytonisa registeredtradenameof Phillips
ChemicalCompany.
LoctiteisaregisteredtradenameofLoctiteCorporation.
ITEM TOTAL
NO. PART NUMBER DESCRIPTION RQD.
286.007.364. Diaphragm 2
286.007.365. Diaphragm 2
286.007.363. Diaphragm 2
286.007.366. Diaphragm 2
286.007.356. Diaphragm 2
286.007.354. Diaphragm 2
43 196.035.010. Chamber, Diaphragm — Outer 2
196.035.110. Chamber, Diaphragm — Outer 2
196.035.112. Chamber, Diaphragm — Outer
44 612.039.010. Plate Assembly, Diaphragm 2
612.097.110. Plate Assembly, Diaphragm 2
612.097.112. Plate Assembly, Diaphragm 2
45 312.033.010. Elbow, Manifold 2
312.033.110. Elbow, Manifold 2
312.033.112. Elbow, Manifold 2
46 334.025.010. Flange, Threaded 2
334.025.110. Flange, Threaded 2
334.025.112. Flange, Threaded 2
47 334.026.010. Flange, Porting — Suction 1
334.026.110. Flange, Porting — Suction 1
334.026.112. Flange, Porting — Suction 1
48 334.027.010. Flange, Porting — Discharge 1
334.027.110. Flange, Porting — Discharge 1
334.027.112. Flange, Porting — Discharge 1
49 518.027.010. Manifold 1
518.027.110. Manifold 1
518.027.112. Manifold 1
50 360.049.425. Gasket, Flange 2
360.049.603. Gasket, Flange 2
51 360.050.379. Gasket, Manifold 4
360.050.384. Gasket, Manifold 4
360.050.608. Gasket, Manifold 4
52 618.003.110. Pipe Plug 4
618.003.112. Plug, Pipe 4
618.003.330. Plug, Pipe (Cast Iron wetted end) 4
53 675.013.360. Ring, Sealing 2
675.013.365. Ring, Sealing 2
675.013.363. Ring, Sealing 2
675.013.364. Ring, Sealing 2
675.013.600. Ring, Sealing 2
54 050.017.360W. Ball, Check Valve 4
050.017.364W. Ball, Check Valve 4
050.017.354. Ball, Check Valve 4
050.017.365W. Ball, Check Valve 4
050.018.600. Ball, Check Valve 4
55 115.057.080. Bracket, Foot Mtg. 2
56 900.004.330. Washer, Lock 2
57 545.004.330. Nut, Hex 2
58 286.020.604. Diaphragm 2
59 901.025.115. Washer 2
62 618.003.330. Pipe Plug (air end) 2
63 570.009.360. Pad, Wear (Not used on PTFE units) 2
570.004.363. Pad, Wear 2
570.004.364. Pad, Wear 2
570.004.365. Pad, Wear 2
NOT SHOWN:
031.019.010. (CI Center) (1)
031.019.156. (Alum. Center) (1)
Includes items 10, 11, 12, 13, 14, 15, 16
Available in kit form. Order P/N 031.055.000., which also includes items 6, 8, 18, 61.
**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.

7/05 Model HDB2-A Page 9 Rev B
©2005 Warren Rupp, Inc. All rights reserved.
®Warren Rupp and SANDPIPER are registered tradenames of Warren Rupp, Inc.
Printed in U.S.A.
Ribs on Virgin PTFE Diaphragm are
to be toward the pumping material.
For Types DGN, TGN
A = These Items Available in Kit Form Only.
Order Angle Valve Kit P/N 475-102-000.
WARREN RUPP, INC., A Unit of IDEX Corporation • P.O. Box 1568 • Mansfield, Ohio 44901-1568 USA • [phone] • Fax [phone] • www.warrenrupp.com