Warren rupp SANDPIPER Drillers Series Parts list manual

dmf2dl5sm-rev0317 ©Copyright 2017 Warren Rupp, Inc. All rights reserved.
Warren Rupp, Inc. • A Unit of IDEX Corporation • 800 N. Main St., Manseld, Ohio 44902 USA
Telephone [phone] • Fax [phone] • warrenrupp.com
Table of Contents
Engineering Data and Performance Curve............................................................ 1
Temperature Limitations and Explanation of Pump Nomenclature ....................... 2
Dimensions DMF2R .............................................................................................. 3
Dimensions DMF2S............................................................................................... 4
Principle of Operation............................................................................................ 5
Installation and Start-Up........................................................................................ 5
Air Supply .............................................................................................................. 5
Air Inlet & Priming.................................................................................................. 6
ESADS+Plus®: Externally Serviceable Air Distribution System ................................ 6
Air Exhaust ............................................................................................................ 7
Between Uses ....................................................................................................... 7
Flap Valve Servicing .............................................................................................. 7
Diaphragm Servicing ............................................................................................. 8
Reassembly........................................................................................................... 8
Pilot Valve.............................................................................................................. 9
Pilot Valve Actuator................................................................................................ 9
Service Instructions: Troubleshooting ................................................................... 9
Warranty ................................................................................................................ 9
Material Codes .................................................................................................... 10
Composite Repair Parts List DMF2S.............................................................. 11-12
Composite Repair Drawing DMF2S .................................................................... 13
Composite Repair Parts List DMF2R .............................................................14-15
Composite Repair Drawing DMF2R .................................................................... 16
CE Declaration of Conformity - Machinery .......................................................... 17
CE Declaration fo Conformity - ATEX.................................................................. 18
Model DMF2R & DMF2S
2" Flap Valve Pump
Type 5
II 2GD T5
See pages 20 & 21
for ATEX ratings
SERVICE & OPERATING MANUAL
Original Instructions
DR LLERS
SERIES

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 13461-1: 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 on ATEX 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.

dmf2dl5sm-rev0317 Model DMF2 Page 1
2" Flap Valve
DMF2R &
DMF2S Type 5
Air-Operated
Double Diaphragm Pump
ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA
INTAKE/DISCHARGE PIPE SIZE
2" (50mm) NPT (F)
CAPACITY
0 to 140 gallons per minute
(0 to 530 liters per minute)
AIR VALVE
No-lube, no-stall
design
SOLIDS-HANDLING
Up to 2" (50mm)
HEADS UP TO
125 psi or 289 ft. of water
(8.8 Kg/cm2or 88 meters)
Quality System
ISO 9001 Certied
Environmental
Management System
ISO 14001 Certied
SANDPIPER®PUMPS ARE DESIGNED TO BE POWERED ONLY BY COMPRESSED AIR.
40 PSI
60 PSI
80 PSI
100 PSI
10
0
20
30
40
50
60
70
80
90
100
200 40 60 80 100 120 140 160
10(17) 20(34) 30(51)
40(68)
50(85)60(101.9)
70(118.9)
80(135.9)
90(152.9)
100(169.9)
150(254.9)
0 200 300 400 500 600
BAR
100
0
1
2
3
4
5
6
7
PSI
125(212.4)
20 PSI Air Inlet Pressure
Liters per minute
U.S. Gallons per minute
CAPACITY
AIR CONSUMPTION
SCFM (M3/hr)
HEAD
MODEL DMF2 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%.
II 2GD T5
See pages 20 & 21
for ATEX ratings
DR LLERS
SERIES

dmf2dl5sm-rev0317 Model DMF2 Page 2
Meanings of
Abbreviations:
AL = Aluminum DC = Die Cast SS = Stainless Steel
B = Nitrile PS = Plated Steel
Explanation of Pump Nomenclature: DMF2R & DMF2S
II 2GD T5
II 2 G c T5
II 3/2 G c T5
II 2 D c T100oC
All models, including pumps equipped with Aluminum wetted and midsection parts.
See page 21 for ATEX Explanation of Type Examination Certicate.
DMF2
Type 5
Manifold
Elbow
Outer
Chamber
Inner
Chamber
Outer
Diaphragm
plates
Inner
Diaphragm
Plate
Intermediate
Housing
Diaphragm
Rod
Valve
Seat
Hardware Diaphragm Flap
Valve
Material
Seat
Gasket
Sealing
Rings
Shippping
Wt. (lbs)
DB-5-A AL380DC AL380DC AL380DC PS PS 356-T6AL 435SS 316SS PS B B N/A B 86
MATERIALS OF CONSTRUCTION
To order a pump or replacement parts, rst enter the Model Number DMF2R, or DMF2S, followed by the Type Designation listed below in the far left column.
Materials
Operating Temperatures
For specic applications, always consult “Chemical Resistance Chart" Technical Bulletin
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.
Maximum Minimum
190°F -10°F
88°C -23°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.

dmf2dl5sm-rev0317 Model DMF2 Page 3
Dimensions: DMF2R
Dimensions are ± 1/8"
Figures in parenthesis = millimeters
11.93
303
13.00
330
26.00
660
5.58
142
19.80
503
24.50
622
5.58
142
4.69
119
27.00
686
13.50
343
3/4" NPT AIR INLET
SUCTION PORT
2" CAM AND GROOVE
DISCHARGE PORT
2" CAM AND GROOVE
3/4" NPT AIR EXHAUST
11.93
303
13.00
330
26.00
660
5.58
142
19.80
503
24.50
622
5.58
142
4.69
119
27.00
686
13.50
343
3/4" NPT AIR INLET
SUCTION PORT
2" CAM AND GROOVE
DISCHARGE PORT
2" CAM AND GROOVE
3/4" NPT AIR EXHAUST

dmf2dl5sm-rev0317 Model DMF2 Page 4
Dimensions: DMF2S
Dimensions are ± 1/8"
Figures in parenthesis = millimeters
15.98
406
26.04
661
32.00
813
23.85
606
8.73
222
5.58
142
18.50
470
5.58
142
3/4" NPT AIR INLET
SUCTION PORT
2" CAM AND GROOVE
DISCHARGE PORT
2" CAM AND GROOVE
3/4" NPT AIR EXHAUST
15.98
406
26.04
661
32.00
813
23.85
606
8.73
222
5.58
142
18.50
470
5.58
142
3/4" NPT AIR INLET
SUCTION PORT
2" CAM AND GROOVE
DISCHARGE PORT
2" CAM AND GROOVE
3/4" NPT AIR EXHAUST

dmf2dl5sm-rev0317 Model DMF2 Page 5
PRINCIPLE OF PUMP OPERATION
This ap swing valve pump is powered by compressed air and is a 1:1
pressure ratio design. It alternately pressurizes the inner side of one diaphragm
chamber, while simultaneously exhausting the other inner chamber. This
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, which allows the unit
to be operated at discharge heads over 200 feet (61 meters) of water head.
Since 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. 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 it into position for shifting of the air distribution valve.
The chambers are manifolded together with a suction and discharge ap-type check valve for each chamber,
maintaining ow in one direction through the pump.
INSTALLATION & START-UP
Locate the pump as close to the product being pumped as possible, keeping suction line length and number of
ttings to a minimum. Do not reduce line size.
For installations of rigid piping, short exible sections of hose should be installed between pump and piping. This reduces
vibration and strain to the piping system.AWarren RuppTranquilizer®surge suppressor is recommended to further reduce
pulsation in ow.
This pump was tested at the factory prior to shipment and is ready for operation. It is completely 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, ll 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 sufcient capacity
and pressure required for desired performance. When the air line is solid piping, use a short length of exible hose [not less
than 3/4" (19mm) in diameter] between pump and piping to eliminate strain to pipes.
Heavy Duty Flap
SERVICE AND OPERATING MANUAL Model DMF2R
DMF2S
2" Flap Valve Pump
Type 5
II 2GD T5
See pages 20 & 21
for ATEX ratings
DR LLERS
SERIES

dmf2dl5sm-rev0317 Model DMF2 Page 6
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 ow as desired. If opening
the valve increases cycling rate, but does not increase ow rate, cavitation
has occurred, and the valve should be closed slightly.
For the most efcient use of compressed air and the longest diaphragm
life, throttle the air inlet to the lowest cycling rate that does not reduce ow.
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+PLUS:
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.
MODELS WITH 1" SUCTION/DISCHARGE OR LARGER,
AND METAL CENTER SECTIONS:
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.

dmf2dl5sm-rev0317 Model DMF2 Page 7
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
withano-ringassembly lubricant orlightweightoil(suchas 10wt.airlinelubricant).
Re-install one end cap, gasket and bumper on the valve body. Using the
arbor press or bench vise that was used in disassembly, carefully press the
sleeve back into the valve body, without shearing the o-rings. 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. Reinstall the spool, opposite end
cap, gasket and bumper on the valve body. After inspecting and cleaning the
gasket surfaces on the valve body and intermediate, reinstall the valve body
on the pump using new gaskets. Tighten the four hex head capscrews evenly
and in an alternating cross pattern.
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 ow and reduce pump performance .When the product
source is at a higher level than the pump (ooded suction), pipe the exhaust
higher than the product source to prevent siphoning spills. (See page 7)
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 ushed 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.
FLAP VALVE SERVICING
Valve inspection requires removal of 3/8" hex nuts and elbows. When
the top suction elbows are removed, the valve and seat are connected as
an assembly. When the bottom discharge elbows are removed, the valve
and seat stay with the outer chamber. Visual inspection and cleaning is
possible. If parts are to be replaced, remove the self-locking nuts and all parts
are accessible.

dmf2dl5sm-rev0317 Model DMF2 Page 8
DIAPHRAGM SERVICING
Diaphragms can be inspected or the diaphragm assembly removed
without removing the suction and discharge anges. Remove (8) nuts
around the chamber ange, and the housing assembly will pull off. Flap
valves can be inspected for proper seating at this point as well as the
diaphragm. Use care to keep foreign matter from behind the diaphragm.
The opposite diaphragm may be inspected by the same procedure.
If either diaphragm has to be replaced, follow closely these steps:
Pull the outer diameter of one diaphragm off the (8) capscrews. NOTE: One
side only! On the free diaphragm assembly, use a 3/8" allen wrench to turn the
assembly (diaphragm,platesandscrew)loosefromtheshaft.Oncetheassembly
has turned, it will turn out by hand by use of the diaphragm. Now the opposite
diaphragmassemblyandthedriveshaftwillpullfreefromthecapscrewsandpump
intermediate assembly. The interior components consisting of sleeve bearings,
rod seals, and pilot valve actuator bushings are now accessible for service if
required. Hold the shaft in a clamping device making sure to protect surface
of shaft so as not to scratch or mar it in any way. The diaphragm assembly
will turn loose. To disassemble the components, turn a 1/4"-20 capscrew by
hand into the tapped hole in the inner plate. This keeps the plate from turning
while the socket head capscrew is removed. To do this, place assembly in a
vise so the two protruding ends of screws are loose in the vise jaws (about
3/4" 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 previous
instructions with further instructions as shown:
1.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 480 inch pounds
(40 ft. pounds) (54.23 Newton meters) using a (3/8") allen head socket. After
each diaphragm sub assembly has been completed, thread one assembly
into the shaft (held near the middle in a vise having soft jaws to protect the
nish) making sure the stainless steel washer is in place on the capscrew.
Make sure 1/4"-20 mounting screw has been removed and that the bumper
(Item #19 on drawing) is in place in the shaft.
Install this sub assembly into the pump and secure by placing the outer
chamber housing and capscrews on the end with the diaphragm. This will
hold the assembly in place while the opposite side is installed. Make sure
the last diaphragm assembly is torqued to 30 ft. lbs. (40.67 Newton meters)
before placing the outer diaphragm over the capscrews. If the holes in the
diaphragm ange do not line up with the holes in the chamber ange, turn
the diaphragm assembly in the direction of tightening to align the holes so
that the capscrews can be inserted. This nal torquing of the last diaphragm
assembly will lock the two diaphragm assemblies together.
Place remaining outer chamber on the open end and tighten down the
securing nuts gradually and evenly on both sides.
Caution should be used while reassembling ap valves. The valves are
designed for some preload over the retainer hinge pad. This is done to insure
proper face contact with the seat. After all parts are in place, tighten the lock
nuts down on the assembly to the point where visual inspection shows that
seat and valve face mate without gap. This is important for dry prime. However,
after priming action has started, valves will function due to differential pressure
without concern or trouble.

dmf2dl5sm-rev0317 Model DMF2 Page 9
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 ne 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.
WARRANTY
This unit is guaranteed for a period of ve years against defective material
and workmanship.
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. Flap valve not seating properly.
D. Leakage at joint of suction manifold or elbow ange.
E. Suction line or strainer plugged.
F. Diaphragm ruptured.
PROBLEM
Pump will not cycle. (Note: Always disconnect air supply to relieve air pressure before disassembling any
portion of pump.)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.)
PROBLEM
Uneven discharge ow. (Indicates one chamber not operating properly.)
POSSIBLE CAUSES:
A. Flap valve not sealing properly in one chamber.
B. Diaphragm failure in one chamber.
C. Air leak at suction manifold joint or elbow ange one side.
For additional information, see the Warren Rupp Troubleshooting Guide.
TROUBLESHOOTING - For additional information, see the Warren Rupp Troubleshooting Guide.

dmf2dl5sm-rev0317 Model DMF2 Page 10
000 Assembly, sub-assembly;
and some purchased items
010 Cast Iron
012 Powered Metal
015 Ductile Iron
020 Ferritic Malleable Iron
025 Music Wire
080 Carbon Steel, AISI B-1112
100 Alloy 20
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)
123 410 Stainless Steel
(Wrought Martensitic)
148 Hardcoat Anodized Aluminum
149 2024-T4 Aluminum
150 6061-T6 Aluminum
151 6063-T6 Aluminum
152 2024-T4 Aluminum (2023-T351)
154 Almag 35 Aluminum
155 356-T6 Aluminum
156 356-T6 Aluminum
157 Die Cast Aluminum Alloy #380
158 Aluminum Alloy SR-319
159 Anodized Aluminum
162 Brass, Yellow, Screw Machine Stock
165 Cast Bronze, 85-5-5-5
166 Bronze, SAE 660
170 Bronze, Bearing Type, Oil Impregnated
175 Die Cast Zinc
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
310 PVDF Coated
313 Aluminum, White Epoxy Coated
330 Zinc Plated Steel
331 Chrome Plated Steel
332 Aluminum, Electroless Nickel Plated
333 Carbon Steel, Electroless
Nickel Plated
335 Galvanized Steel
336 Zinc Plated Yellow Brass
337 Silver Plated Steel
340 Nickel Plated
342 Filled Nylon
351 Food Grade Santoprene; Color: NATURAL
MATERIAL CODES
THE LAST 3 DIGITS OF PART NUMBER
353 Geolast; Color: BLACK
354 Injection Molded #203-40
Santoprene- Duro 40D +/-5; Color: RED
355 Thermal Plastic
356 Hytrel; Color: BLUE
357 Injection Molded Polyurethane;
Color: GREEN
358 Urethane Rubber; Color: NATURAL
(Some Applications)
(Compression Mold)
359 Urethane Rubber; Color: NATURAL
360 Nitrile Rubber; Color Coded: RED
361 Nitrile
363 FKM (Fluorocarbon).
Color Coded: YELLOW
364 E.P.D.M. Rubber. Color Coded: BLUE
365 Neoprene Rubber;
Color Coded: GREEN
366 Food Grade Nitrile; Color: WHITE
368 Food Grade EPDM; Color: GRAY
370 Butyl Rubber
Color Coded: BROWN
371 Philthane (Tuftane)
374 Carboxylated Nitrile
375 Fluorinated Nitrile
378 High Density Polypropylene
379 Conductive Nitrile;
Color Coded: RED & SILVER
384 Conductive Neoprene;
Color Coded: GREEN & SILVER
405 Cellulose Fibre
408 Cork and Neoprene
425 Compressed Fibre
426 Blue Gard
440 Vegetable Fibre
465 Fibre
500 Delrin 500
501 Delrin 570
502 Conductive Acetal, ESD-800;
Color: BLACK
503 Conductive Acetal, Glass-Filled
Color: BLACK; Color Coded: YELLOW
505 Acrylic Resin Plastic
506 Delrin 150
520 Injection Molded PVDF; Color: NATURAL
521 Injection Molded Conductive PVDF;
Color: BLACK; Color Coded: LIGHT
GREEN
540 Nylon
541 Nylon
542 Nylon
544 Nylon Injection Molded
550 Polyethylene
551 Glass Filled Polypropylene; Color: BLACK
552 Unlled Polypropylene; Color: NATURAL
555 Polyvinyl Chloride
556 Black Vinyl
557 Conductive Polypropylene;
Color: BLACK; Color Coded: SILVER
558 Conductive HDPE; Color: BLACK
Color Coded: SILVER
559 Conductive Polypropylene; Color: BLACK
Color Coded: SILVER
570 Rulon II
580 Ryton
590 Valox
591 Nylatron G-S
592 Nylatron NSB
600 PTFE (virgin material)
Tetrauorocarbon (TFE)
601 PTFE (Bronze and moly lled)
602 Filled PTFE
603 Blue Gylon
604 PTFE
606 PTFE
607 Envelon
608 Conductive PTFE; Color: BLACK
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 is a registered
tradename of E.I. DuPont.
Gylon is a registered tradename
of Garlock, Inc.
Nylatron is a registered tradename
of Polymer Corp.
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.
PortaPump, Tranquilizer and SludgeMaster are
registered tradenames of Warren Rupp, Inc.

dmf2dl5sm-rev0317 Model DMF2 Page 11
SERVICE AND OPERATING MANUAL
ITEM
NO. PART NUMBER DESCRIPTION QTY.
1 031.012.000 SLEEVE & SPOOL SET 1
2 060.096.000 BASE, PUMP 1
3 070.006.170 SLEEVE, BEARING 2
4 095.043.156 BODY, AIR VALVE 1
5 095.073.000 ASSEMBLY, PILOT VALVE 1
5-A 095.070.551 BODY, PILOT VALVE 1
5-B 560.033.360 O-RING 4
5-C 560.023.360 O-RING (SPOOL) 2
5-D 675.037.080 RETAINING RING 1
5-E 755.025.000 SLEEVE, PILOT VALVE 1
5-F 775.026.000 SPOOL, PILOT VALVE 1
6 114.002.156 INTERMEDIATE 1
7 115.158.080 BRACKET, LEG 2
8 115.159.080 BRACKET, LEG 2
9 132.002.360 BUMPER, DIAPHRAGM PLATE 2
10 132.014.358 BUMPER, AIR VALVE 2
11 135.016.162 BUSHING, THREADED, W/ O-RING 560.001.360 2
12 165.011.157 CAP, END 2
13 170.023.330 CAPSCREW, HEX HEAD 8
14 170.024.330 CAPSCREW, HEX HD, 7/16-14 X 1 8
15 170.026.330 CAPSCREW, HEX HEAD 2
16 170.032.330 CAPSCREW, HEX HEAD 8
17 170.035.330 CAPSCREW, HEX HD, 7/16-14 X 1.50 12
18 170.045.330 CAPSCREW HEX HEAD 4
19 170.052.330 CAPSCREW, HEX HEAD 2
20 171.002.330 CAPSCREW, SOCKET HEAD 2
21 196.001.157 CHAMBER, INNER 2
22 196.002.156 CHAMBER, OUTER 2
23 286.007.360 DIAPHRAGM 2
24 312.012.156 ELBOW SUCTION 2
25 312.013.156 ELBOW, DISCHARGE 2
26 338.005.360 FLAP VALVE 4
27 360.010.425 GASKET, END CAP 2
28 360.011.425 GASKET, SEAT 4
29 360.012.379 GASKET, FLANGE 4
30 360.041.379 GASKET, VALVE BODY 1
31 360.048.425 GASKET, VALVE BODY 1
32 429.001.156 CAM AND GROOVE, 2" ALUMINUM MALE 2
33 518.001.157 MANIFOLD 2
34 530.036.000 MUFFLER 1
35 545.005.330 NUT, HEX, 3/8-16 16
Model DMF2S
Repair parts list
2" Flap Valve Pump
Type 5
II 2GD T5
See pages 20 & 21
for ATEX ratings
DR LLERS
SERIES

dmf2dl5sm-rev0317 Model DMF2 Page 12
ITEM
NO. PART NUMBER DESCRIPTION QTY.
36 545.007.330 NUT, HEX - 7/16-14 12
37 547.002.110 NUT, STOP 8
38 560.001.360 O-RING 2
39 560.020.360 O-RING 6
40 560.022.360 O-RING 2
41 570.001.360 PAD, HINGE-FLAP VALVE 4
42 570.009.360 PAD, WEAR 2
43 612.008.330 PLATE, OUTER DIAPHRAGM 2
44 612.047.330 PLATE, INNER DIAPHRAGM 2
45 618.003.330 PLUG, PIPE, 1/4 4
46 620.011.114 PLUNGER, ACTUATOR 2
47 670.005.110 RETAINER, FLAP VALVE 4
48 675.013.360 RING, SEALING 4
49 685.007.120 ROD, DIAPHRAGM 1
50 720.004.360 SEAL, U-CUP 2
51 722.004.110 SEAT, FLAP VALVE 4
52 770.005.330 SPACER 2
53 807.008.330 STUD 16
54 807.018.110 STUD, 1/4-20 8
55 900.005.330 WASHER, LOCK, 3/8 20
56 900.006.330 WASHER, LOCK - 7/16 20
57 902.003.000 WASHER, SEALING 2
Model DMF2S Parts List, Continued

dmf2dl5sm-rev0317 Model DMF2 Page 13
8
48
22
45
53
36
28 51
29
26
41
47
37
25
52
55
15
24
55
19
54
37
47
41
26
29
51
33
53
20
43
23
42
44
7
16
12
2710
39
1
18
4
5-F
5-C
5-B
5-E
5-D
31
5-A
30
34
56
14
38
46 11
3 50
40
49
57
21
56
17
45
53
35
55
54
13
56
36
2
17
6
32
28
9
©2015 Warren Rupp, Inc. All rights reserved.
Printed in U.S.A.
Model DMF2S Composite Repair Drawing

dmf2dl5sm-rev0317 Model DMF2 Page 14
SERVICE AND OPERATING MANUAL Model DMF2R
Repair parts list
2" Flap Valve Pump
Type 5
ITEM
NO. PART NUMBER DESCRIPTION QTY.
1 031.012.000 SLEEVE & SPOOL SET 1
2 060.045.000 BASE, CAGE, WELDMENT 1
3 070.006.170 SLEEVE, BEARING 2
4 095.043.156 BODY, AIR VALVE 1
5 095.073.000 PILOT VALVE ASSEMBLY 1
5-A 095.070.551 BODY, PILOT VALVE 1
5-B 560.033.360 O-RING 4
5-C 560.023.360 O-RING (SPOOL) 2
5-D 675.037.080 RETAINING RING 1
5-E 755.025.000 SLEEVE, PILOT VALVE 1
5-F 775.026.000 SPOOL, PILOT VALVE 1
6 114.002.156 INTERMEDIATE 1
7 115.158.080 BRACKET, LEG 2
8 115.159.080 BRACKET, LEG 2
9 132.002.360 BUMPER, DIAPHRAGM PLATE 2
10 132.014.358 BUMPER, AIR VALVE 2
11 135.016.162 BUSHING, THREADED, W/ O-RING 560.001.360 2
12 165.011.157 CAP, END 2
13 170.023.330 CAPSCREW, HEX HEAD 8
14 170.024.330 CAPSCREW, HEX HD, 7/16-14 X 1 8
15 170.026.330 CAPSCREW, HEX HEAD 2
16 170.032.330 CAPSCREW, HEX HEAD 8
17 170.035.330 CAPSCREW, HEX HD, 7/16-14 X 1.50 8
18 170.045.330 CAPSCREW HEX HEAD 4
19 170.052.330 CAPSCREW, HEX HEAD 6
20 171.002.330 CAPSCREW, SOCKET HEAD 2
21 196.001.157 CHAMBER, INNER 2
22 196.002.157 CHAMBER, OUTER 2
23 286.007.360 DIAPHRAGM 2
24 312.012.156 ELBOW SUCTION 2
25 312.013.156 ELBOW, DISCHARGE 2
26 338.005.360 FLAP VALVE 4
27 360.010.425 GASKET, END CAP 2
28 360.011.425 GASKET, SEAT 4
29 360.012.379 GASKET, FLANGE 4
30 360.041.379 GASKET, VALVE BODY 1
31 360.048.425 GASKET, VALVE BODY 1
32 429.001.156 CAM AND GROOVE, 2" ALUMINUM MALE 2
33 518.001.157 MANIFOLD 2
34 530.036.000 MUFFLER 1
35 545.005.330 NUT, HEX, 3/8-16 20
II 2GD T5
See pages 20 & 21
for ATEX ratings
DR LLERS
SERIES

dmf2dl5sm-rev0317 Model DMF2 Page 15
ITEM
NO. PART NUMBER DESCRIPTION QTY.
36 545.007.330 NUT, HEX - 7/16-14 8
37 547.002.110 NUT, STOP 8
38 560.001.360 O-RING 2
39 560.020.360 O-RING 6
40 560.022.360 O-RING 2
41 570.001.360 PAD, HINGE-FLAP VALVE 4
42 570.009.360 PAD, WEAR 2
43 612.008.330 PLATE, OUTER DIAPHRAGM 2
44 612.047.330 PLATE, INNER DIAPHRAGM 2
45 618.003.330 PLUG, PIPE, 1/4 4
46 620.011.114 PLUNGER, ACTUATOR 2
47 670.005.110 RETAINER, FLAP VALVE 4
48 675.013.360 RING, SEALING 4
49 685.007.120 ROD, DIAPHRAGM 1
50 720.004.360 SEAL, U-CUP 2
51 722.004.110 SEAT, FLAP VALVE 4
52 770.005.330 SPACER 2
53 807.008.330 STUD 16
54 807.018.110 STUD, 1/4-20 8
55 900.005.330 WASHER, LOCK, 3/8 24
56 900.006.330 WASHER, LOCK - 7/16 16
57 902.003.000 WASHER, SEALING 2
Model DMF2R Parts List, Continued

dmf2dl5sm-rev0317 Model DMF2 Page 16
8
48
22
45
53
36
28 51
29
26
41
47
37
25
52
55
15
24
55
19
54
37
47
41
26
29
51
33
53
20
43
23
42
44
7
16
12
27
10
39
1
18
4
5-F
5-C
5-B
5-E
5-D
31
5-A
30
34
56
14
38
46 11
350
40
49
57
21
56
17
45
53
35
55
54
13
19
2
35
55
32
6
28
9
©2015 Warren Rupp, Inc. All rights reserved.
®SANDPIPER is a registered tradename of Warren Rupp, Inc.
Printed in U.S.A.
Model DMF2R Composite Repair Drawing

Declaration of Conformity
Signature of authorized person Date of issue
Authorised Representative:
IDEX Pump Technologies
R79 Shannon Industrial Estate,
Shannon, Co. Clare
Ireland
Revision Level: F
Title
David Roseberry Engineering Manager
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, 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.
~ See sandpiperpump.com/content/warranty-certifications for complete warranty,
including terms and conditions, limitations and exclusions. ~

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