SANDPIPER DMF3S User Manual
SERVICE AND OPERATING MANUAL
II 2GD T5
Model DMF3S
3" Flap Valve Pump
A WARREN RUPP PUMP BRAND
DRILLER’S MUD SERIES
Table of Contents
Engineering Data and Performance Curve............................................................ 1
Temperature Limitations and Explanation of Pump Nomenclature ....................... 2
Dimensions ............................................................................................................ 3
Principle of Operation ............................................................................................ 4
Installation and Start-Up ........................................................................................ 4
Air Supply .............................................................................................................. 4
Air Inlet & Priming .................................................................................................. 4
See pages 15 & 16
for ATEX ratings
Type 7
ESADS+Plus®:
Pilot Valve .............................................................................................................. 6
Pilot Valve Actuator ................................................................................................ 6
Air Exhaust ............................................................................................................ 6
Between Uses ....................................................................................................... 6
Check Valve Servicing ........................................................................................... 6
Diaphragm Servicing ............................................................................................. 6
Reassembly ........................................................................................................... 6
Service Instructions: Troubleshooting ................................................................... 7
Warranty ................................................................................................................ 7
Material Codes ...................................................................................................... 8
Important Safety Information ................................................................................. 9
Recycling ............................................................................................................... 9
Grounding The Pump .......................................................................................... 10
Composite Repair Parts List ........................................................................... 11-12
Externally Serviceable Air Distribution System ................................5
Composite Repair Drawing.................................................................................. 13
CE Declaration of Conformity - Machinery .......................................................... 14
CE Declaration fo Conformity - ATEX .................................................................. 15
Explanation of ATEX Certication ........................................................................ 16
dmf3sdl7sm-rev0614
Warren Rupp, Inc. • A Unit of IDEX Corporation • 800 N. Main St., Manseld, Ohio 44902 USA
Telephone (419) 524-8388 • Fax (419) 522-7867 • warrenrupp.com
©Copyright 2014 Warren Rupp, Inc. All rights reserved.
Quality System
A WARREN RUPP PUMP BRAND
II 2GD T5
ISO 9001 Certied
DRILLER’S MUD SERIES
3" Flap Valve
Environmental
Management System
ISO 14001 Certied
INTAKE/DISCHARGE PIPE SIZE
3" (75mm) 150# ANSI FLANGE
BAR
7
100
90
6
80
5
70
PSI
20(34)
100 PSI
80 PSI
CAPACITY
0 to 260 gallons per minute
(0 to 988 liters per minute)
AIR CONSUMPTION
SCFM (M
40(68)
60(101.9)
3
/hr)
80(135.9)
DMF3S Type 7
Air-Operated
Double Diaphragm Pump
See pages 15 & 16
for ATEX ratings
AIR VALVE
No-lube, no-stall
design
MODEL DMF3 Performance Curve
Performance based on the following: elastomer fitted pump, flooded suction,
water at ambient conditions. The use of other materials and varying hydraulic
100(169.9)
ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA
SOLIDS-HANDLING
Up to nearly 3" (75mm)
conditions may result in deviations in excess of 5%.
HEADS UP TO
125 psi or 289 ft. of water
(8.8 Kg/cm2 or 88 meters)
4
HEAD
3
2
1
0
60
60 PSI
50
40
40 PSI
120(203.9)
30
20
20 PSI Air Inlet Pressure
10
0
40
200
60 80
100
120
140 160
U.S. Gallons per minute
180
200
220
240
0 100 200 300 400 500 600 700 800 900 1000
Liters per minute
CAPACITY
SANDPIPER® pumps are designed to be powered only by compressed air.
260
dmf3sdl7sm-rev0614 Model DMF3S Page 1
Explanation of Pump Nomenclature: DMF3S
II 2GD T5
MATERIALS OF CONSTRUCTION
To order a pump or replacement parts, rst enter the Model Number DMF3S, followed by the Type Designation listed below in the far left column.
DMF3S
Type 7
DB-7 356-T6AL 356-T6AL 356-T6AL Alm35AL Alm35AL 356-T6AL 416SS SS PS B B A B 245
Manifold
Elbow
Outer
Chamber
Inner
Chamber
Outer
Diaphragm
Plates
Inner
Diaphragm
Plate
Intermediate
Housing
Diaphragm
Rod
Valve
Hardware Diaphragm Flap
Seat
Valve
Material
Seat
Gasket
Sealing
Rings
Shippping
Wt. (lbs)
Meanings of
Abbreviations:
A = Compressed Fibre CI = Cast Iron
AL = Aluminum PS = Plated Steel
Alm = Almag 35 Aluminum SS = Stainless Steel
B = Nitrile
Materials
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.
For specic applications, always consult “Chemical Resistance Chart" Technical Bulletin
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.
Operating Temperatures
Maximum Minimum
190°F -10°F
88°C -23°C
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 16 for ATEX Explanation of Type Examination Certicate.
dmf3sdl7sm-rev0614 Model DFM3S Page 2
Dimensions:
Dimensions are ± 1/8"
Figures in parenthesis = millimeters
DMF3S
27.63
339
90.43
668
38.91
405
1” NPT AIR INLET
3” NPT DISCHARGE PORT
48.8
422
57.3
59
57.3
59
3” NPT SUCTION PORT
43.03
177
05.81
074
1” NPT EXHAUST PORT
dmf3sdl7sm-rev0614 Model DMF3S Page 3
SERVICE AND OPERATING MANUAL
II 2GD T5
A WARREN RUPP PUMP BRAND
DRILLER’S MUD SERIES
See pages 15 & 16
for ATEX ratings
PLEASE NOTE!
The photos shown in this manual are for general instruction only. Your specic model
may not be shown. Always refer to the parts list and exploded view drawing for your
specic model when installing, disassembling or servicing your pump.
PRINCIPLE OF PUMP OPERATION
This ap swing check 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 valve spool. This pushes it into position for
shifting of the air distribution valve.
The chambers are manifolded together with a suction and discharge check valve
for each chamber, maintaining ow in one direction through the pump.
Model DMF3S
Type 7
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.
A Warren Rupp Tranquilizer
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.
®
Surge Suppressor is recommended to further reduce
AIR SUPPLY
Air supply pressures cannot exceed 125 psi (8.61 bar). Connect the pump air inlet
to an air supply of sufcient 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.
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 efcient use of compressed air and the longest diaphragm life, throttle
the air inlet to the lowest cycling rate that does not reduce ow.
dmf3sdl7sm-rev0614 Model DFM3S Page 4
Loading...