Sandpiper G Series Parts list manual
Model G20F
Heavy Duty Flap Valve
Design Level 1
A Unit of IDEX Corporation
800 N. Main St.,
Manseld, Ohio 44902 USA
Telephone (419) 524.8388
Fax (419) 522.7867
SANDPIPERPUMP.COM
© Copyright 2017 Warren Rupp, Inc.
All rights reserved
Certied Quality
ISO 9001 Certied
ISO 14001 Certied
Certied to CSA Technical Letter No, R-14
Certied to ANSI LC6-2008
SERVICE & OPERATING MANUAL
Original Instructions
1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY
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Model G20F
IMPORTANT
Read the safety warnings and instructions in this manual
before pump installation and start-up. Failure to comply with
the recommendations stated in this manual could damage the
pump and void factory warranty.
When used for toxic or aggressive uids, the pump should
always be ushed clean prior to disassembly.
Airborne particles and loud noise hazards. Wear eye and ear
protection.
Before maintenance or repair, shut off the compressed air line,
bleed the pressure, and disconnect the air line from the pump.
Be certain that approved eye protection and protective clothing
are worn at all times. Failure to follow these recommendations
may result in serious injury or death.
When the pump is used for materials that tend to settle out
or solidify, the pump should be ushed after each use to
prevent damage. In freezing temperatures the pump should be
completely drained between uses.
Before pump operation, inspect all fasteners for loosening
caused by gasket creep. Retighten loose fasteners to prevent
leakage. Follow recommended torques stated in this manual.
CAUTION
WARNING
Nonmetallic pumps and plastic components are not UV
stabilized. Ultraviolet radiation can damage these parts and
negatively affect material properties. Do not expose to UV light
for extended periods of time.
In the event of diaphragm rupture, pumped material may enter
the air end of the pump, and be discharged into the atmosphere.
If pumping a product that is hazardous or toxic, the air exhaust
must be piped to an appropriate area for safe containment.
This pump is pressurized internally with gas pressure during
operation. Make certain that all fasteners are in good condition
and are reinstalled properly during reassembly.
Take action to prevent static sparking. Fire or explosion can
result, especially when handling ammable liquids. The pump,
piping, valves, containers and other miscellaneous equipment
must be properly grounded.
Safety Information
ATEX Pumps - Conditions For Safe Use
Use safe practices when lifting
kg
WARNING
The use of non-OEM replacement parts will void (or negate)
agency certications, including CE, ATEX, CSA, 3A and EC1935
compliance (Food Contact Materials). Warren Rupp, Inc. cannot
ensure nor warrant non-OEM parts to meet the stringent
requirements of the certifying agencies.
1. Ambienttemperaturerangeisasspeciedintables1to3onthenextpage(per Annex I of DEKRA 18ATEX0094X)
2. ATEXcompliantpumpsaresuitableforuseinexplosiveatmosphereswhentheequipmentisproperlygroundedin
accordancewithlocalelectricalcodes
3. Non-Metallic ATEX Pumps only — See Explanation of Pump Nomenclature / ATEX Details Page
ConductivePolypropylene,conductiveAcetalorconductivePVDFpumpsarenottobeinstalledinapplicationswherethe
pumpsmaybesubjectedtooil,greasesandhydraulicliquids.
4. Theoptionallyprovidedsolenoidsshallbeprotectedbyafusecorrespondingtoitsratedcurrent(max3*Irataccording
toEN60127)orbyamotorprotectingswitchwithshortcircuitandthermalinstantaneoustripping(settotherated
current)asshortcircuitprotection.Forsolenoidswithaverylowratedcurrent,afusewiththelowestcurrentvalue
accordingtotheindicatedstandardwillbesufficient.Thefusemaybeaccommodatedintheassociatedsupplyunit
orshallbeseparatelyarranged.Theratedvoltageofthefuseshallbeequalorgreaterthanthestatedratedvoltageofthe
solenoid.Thebreakingcapacityofthefuseshallbeashighasorhigherthanthemaximumexpectedshortcircuitcurrent
atthelocationoftheinstallation(usually1500A).Themaximumpermissiblerippleis20%foralldcsolenoids.
*Not applicable for all pump models — See Explanation of Pump Nomenclature / ATEX Details Page
5. Whenoperatingpumpsequippedwithnon-conductivediaphragmsthatexceedthemaximumpermissibleprojectedarea,
asdenedinENISO80079-36:2016section6.7.5table8,thefollowingprotectionmethodsmustbeapplied
-Equipmentisalwaysusedtotransferelectricallyconductivefluidsor
-Explosiveenvironmentispreventedfromenteringtheinternalportionsofthepump,i.e.dryrunning.
6. Pumpsprovidedwiththepulseoutputkitandusedinthepotentiallyexplosiveatmospherecausedbythepresenceof
thecombustibledustshallbeinstalledinsuchawaythatthepulseoutputkitisprotectedagainstimpact
*Not applicable for all pump models — See Explanation of Pump Nomenclature / ATEX Details Page
UNIVERSAL ALL AODD
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Temperature Tables
Ambient Temperature
Range [°C]
ProcessTemperature
Range [°C]1
Temperature
Class
MaximumSurfaceTem-
perature [°C]
-20°Cto+60°C
-20°Cto+80°C T5 T100°C
-20°Cto+108°C T4 T135°C
-20°Cto+160°C T3
T200°C
-20°Cto+177°C (225°C)T2
Ambient Temperature
Range [°C]
ProcessTemperature
Range [°C]
Temperature
Class
MaximumSur-
faceTemperature
[°C]
Options
PulseOutput
Kit
IntegralSolenoid
-20°Cto+60°C -20°Cto+100°C T5 T100 X
-20°Cto+50°C -20°Cto+100°C T5 T100 X
Ambient Temperature
Range [°C]
ProcessTemperature
Range [°C]
-20°Cto+60°C -20°Cto+150°C
1PerCSAstandardsANSILC6-2018US&CanadianTechnicalLetterR14,G-SeriesNaturalGasModelsarerestrictedto(-20°Cto+80°C)processtemperature
Note:Theambienttemperaturerangeandtheprocesstemperaturerangeshouldnotexceedtheoperating
temperaturerangeoftheappliednon-metallicpartsaslistedinthemanualsofthepumps.
2ATEXPulseoutputorIntergralSolenoidNotAvailableForAllPumpModelsSeeExplanationofPumpNomenclature/ATEXDetailsPage
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Table of Contents
SECTION 1: PUMP SPECIFICATIONS ..............1
• Explanation of Nomenclature
• Performance
• Materials
• Dimensional Drawings
SECTION 2: INSTALLATION & OPERATION ...4
• Principle of Pump Operation
• Recommended Installation Guide
• Troubleshooting Guide
SECTION 3: EXPLODED VIEW ..........................7
• Composite Repair Parts Drawing
• Composite Repair Parts List
• Material Codes
SECTION 4: GAS END .....................................10
• Gas Valve Assembly
• Pilot Valve Assembly
SECTION 5: WET END.....................................13
• Diaphragm Drawings
•Pumping Hazardous Liquids
SECTION 7: WARRANTY & CERTIFICATES . . 15
• Warranty
• EC Declaration of Conformity - Machinery
• EC Declaration of Conformity - ATEX
MODEL SPECIFIC
1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY
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Explanation of Pump Nomenclature
ATEX Detail
Non-Wetted Material Options
A PaintedAluminumwithNitrileElastomerParts
V PaintedAluminumwithFKMElastomerParts
Porting Options
N NPTThreads
Pump Style
S Standard
Mufer Options
X NoMuerPermitted*
Pump Brand
G GasOperated
Pump Size
2"
Check Valve Type
F Flap
Design Level
1 DesignLevel
Wetted Material
S PaintedStainlessSteel
A PaintedAluminum
Diaphragm/Check Valve Materials
B Nitrile/Nitrile
V FKM/FKM
Check Valve Seat
S StainlessSteel
Your Serial #: (ll in from pump nameplate) _____________________________________
Pump Pump Check Design Wetted Diaphragm/
Check Valve
Non-Wetted
Porting Pump Mufer Pump
Brand Size Valve Level Material
Check Valve
Seat Material Options Style Options Options
G XX X X X X X X X X X XX
Model #:
__ ____ __ __ __ __ __ __ __ __ __ ____
(ll in from pump
nameplate)
Your Model #:
II 2GD T5
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db
MODEL SPECIFIC
1: PUMP SPECS
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6 • Model G20F
Performance
G20F NATURAL GAS OPERATED
SUCTION/DISCHARGE PORT SIZE
• 2"
CAPACITY
• 0 to 208 gallons per minute
(0 to 786 liters per minute)
GAS DISTRIBUTION VALVE
• No-lube, no-stall design
SOLIDS-HANDLING
• Up to 1.8in. (45mm)
HEADS UP TO
•100 psi - 231 ft. of water
(7 bar - 70 meters)
MAXIMUM OPERATING PRESSURE
• 100 psi (7 bar)
DISPLACEMENT/STROKE
• .47 Gallon / 1.8 liter
SHIPPING WEIGHT
• Aluminum 88 lbs. (39.9kg)
• Stainless Steel 140 lbs. (63.5kg)
Materials
CAUTION! Operating temperature limitations are as follows:
40 PSI
60 PSI
80 PSI
100 PSI
(6.8 Bar)
(2.72 Bar)
(4.08 Bar)
(5.44 Bar)
(1.36 Bar)
0 200100 400300 500 600 700
PSI
800
20 PSI Air Inlet Pressure
Liters per minute
U.S. Gallons per minute
CAPACITY
BAR
0
1
2
7
3
4
5
6
HEAD
AIR CONSUMPTION
SCFM (M3/hr)
MODEL G20F Performance Curve
Performance based on the following: elastomer fitted pump, flooded suction, water at ambient temperature.
The use of other materials and varying hydraulic conditions may result in deviations in excess of 5%.
0
20
40
60
80
100
0 20 40 60 80 100 120 140 160 180 200
20(34)
40(68) 60(102)
80(136)
100(170)
120(204)
10(17)
140(238)
Material Prole: Operating
Temperatures:
Max. Min.
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
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
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.
Stainless Steel: Equal to or exceeding ASTM specication 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.
Forspecicapplications,alwaysconsulttheChemicalResistanceChart.
CAUTION! Operating temperature limitations are as follows:
MODEL SPECIFIC UNIVERSAL ALL AODD
1: PUMP SPECS
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Dimensions in inches (metric dimensions in brackets). Dimensional Tolerance .125" (3mm).
19.87
505
9.81
249
21.64
550
20.30
516
2.61
66
2.61
66
OPTIONAL VERTICAL
SUCTION PORT
OPTIONAL VERTICAL
DISCHARGE PORT
2.55
65
2.64
67
17.69
449
2.59
66
7.06
179
13.56
344
2"NPT
SUCTION PORT
2"NPT
DISCHARGE PORT
3/4" NPT
AIR INLET
13.00
330
16.00
406
10.25
260
14.00
355
11.00
279
8.88
226
5.28
134
8X
.50 13
THRU
1" NPT EXHAUST PORT
Dimensional Drawings
MODEL SPECIFIC
1: PUMP SPECS
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8 • Model G20F
Principle of Pump Operation
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4 • Model HD20F Non-Metallic
Air-Operated Double Diaphragm (AODD) pumps are powered by
compressed air,
natural gas 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
UNIVERSAL ALL AODD
2: INSTALL & OP
UNIVERSAL ALL AODD
2: INSTAL & OP
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om Model G20F • 9
Principle of Pump Operation Recommended Installation Guide
Flexible
Conductive
Connector
Pipe Connection
(Style Optional)
Shut-Off Valve
Pressure Gauge
Drain Port
Natural Gas Exhaust
(Piped to Remote Location)
Flexible
Connection
Gas Shut Off Valve
Flexible Connector
Pipe Connection
(Style Optional
Drain Port
Shut-Off Valve
Vacuum
Gauge
Note
: Piping and gas line must be supported
after the flexible connections.
Suction Port
Discharge Port
Natural Gas Inlet
2
Gas Regulator
1
Gas Filter
Note
: Natural gas supply
must be conductive piping,
and must be supported
The pump must be rigidly mounted in the
horizontal position with fasteners to a
conductive base or natural ground.
020.064.000 Filter
VENTING WARNING: This lter is equipped with a stainless steel manual drain. The port is 1/8" NPT. When draining moisture from the lter, rst shut off the
natural gas supply.
020.059.000 REGULATOR WITH GAGE
PRESSURE WARNING: This regulator is to be installed at point of use with the pump. The maximum gas supply is 400psi. Full line pressure needs to be
regulated below 400psi prior to the regulator installation position.
VENTING WARNING: This regulator is equipped with a 1/4" NPT vent port. In the event of a diaphragm rupture, natural gas can be exhausted into the
surrounding environment. Connect a conductive hose or pipe to the vent port to send the escaping natural gas to a safe area for gas reclamation. Make sure
to ground the regulator, hose, and/or pipe.
1
2
CAUTION
The gas exhaust should
be piped to an area
for safe disposition
of the product being
pumped, in the event of
a diaphragm failure.
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.
Gas Supply
Connect the pump gas inlet to a gas supply with sufcient capacity and pressure to achieve desired performance. A pressure regulating valve should be installed to
insure gas supply pressure does not exceed recommended limits.
Gas Valve Lubrication
The gas distribution system is designed to operate WITHOUT lubrication. This is the standard mode of operation. If lubrication is desired, install a gas line lubricator
set to deliver one drop of SAE 10 non-detergent oil for every 20 SCFM (9.4 liters/sec.) of gas the pump consumes. Consult the Performance Curve to determine gas
consumption.
Gas Line Moisture
Water in the compressed gas supply may cause icing or freezing of the exhaust gas, causing the pump to cycle erratically or stop operating. Water in the gas supply
can be reduced by using a point-of-use gas dryer.
Gas Inlet And Priming
To start the pump, slightly open the gas shut-off valve. After the pump primes, the gas valve can be opened to increase gas 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 efcient gas ow to pump
ow ratio.
UNIVERSAL ALL AODD, EXCEPT FLAP
2: INSTAL & OP
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10 • Model G20F
Troubleshooting Guide
Pump Cycles Once Deadhead (system pressure meets or exceeds gas
supply pressure).
Increase the inlet gas pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Gas 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 gas (line size, PSI, CFM). Check the gas line size and length, compressor capacity (HP vs. cfm required).
Check gas distribution system. Disassemble and inspect main gas 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 gas
supply pressure).
Increase the inlet gas 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 gas exhaust mufer. Remove mufer screen, clean or de-ice, and re-install.
Pumped uid in gas exhaust mufer. 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. Flap valve(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 ap valve(s) and valve seat area. Replace ap valve(s) or valve seat if damaged.
Flap valve(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 gas leakage or gas in product. Visually inspect all suction-side gaskets and pipe connections.
Pumped uid in gas exhaust. 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. De-ice, and re-install. Install a point of use gas drier.
Clogged manifolds. Clean manifolds to allow proper gas ow.
Deadhead (system pressure meets or exceeds gas
supply pressure).
Increase the inlet gas 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 gas (line size, PSI, CFM). Check the gas 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.
Gas supply pressure or volume exceeds system hd. Decrease inlet gas (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 gas line. Install a larger gas line and connection.
Suction side gas leakage or gas 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 gas exhaust mufer. 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.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained gas or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs. Purging the chambers of gas 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 gas pressure. Consult Chemical Resistance Chart for compat-
ibility 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 gas exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Suction side gas leakage or gas 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 gas or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs.
For additional troubleshooting tips contact After Sales Support at [email protected] or 419-524-8388
UNIVERSAL ALL SANDPIPER, EXCEPT FLAP
2: INSTAL & OP
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om Model G20F • 11
Troubleshooting Guide
Pump Cycles Once Deadhead (system pressure meets or exceeds gas
supply pressure).
Increase the inlet gas pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Gas 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 gas (line size, PSI, CFM). Check the gas line size and length, compressor capacity (HP vs. cfm required).
Check gas distribution system. Disassemble and inspect main gas 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 gas
supply pressure).
Increase the inlet gas 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 gas exhaust mufer. Remove mufer screen, clean or de-ice, and re-install.
Pumped uid in gas exhaust mufer. 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. Flap valve(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 ap valve(s) and valve seat area. Replace ap valve(s) or valve seat if damaged.
Flap valve(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 gas leakage or gas in product. Visually inspect all suction-side gaskets and pipe connections.
Pumped uid in gas exhaust. 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. De-ice, and re-install. Install a point of use gas drier.
Clogged manifolds. Clean manifolds to allow proper gas ow.
Deadhead (system pressure meets or exceeds gas
supply pressure).
Increase the inlet gas 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 gas (line size, PSI, CFM). Check the gas 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.
Gas supply pressure or volume exceeds system hd. Decrease inlet gas (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 gas line. Install a larger gas line and connection.
Suction side gas leakage or gas 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 gas exhaust mufer. 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.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained gas or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs. Purging the chambers of gas 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 gas pressure. Consult Chemical Resistance Chart for compat-
ibility 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 gas exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Suction side gas leakage or gas 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 gas or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs.
Composite Repair Parts Drawing
1
2
3
4
5
6
7
8
12
10
9
14
15
11
9
13
17
18
36
36
20
21
22
22
23
24
25
25
29
37
30
28 38 31
31
38
28
42
45
45
45
43
9
32
34
19
16
48
33
3539
41
39
39
40
47
42
44
44
46
46
27
ITEM
NO.
PART
NUMBER DESCRIPTION
QTY.
1
031.212.156
ASSEMBLY, MAIN AIR VALVE
1
2
070.006.170
BUSHING
2
3
095.073.001
ASSEMBLY, PILOT VALVE
1
4
114.002.XXX
BRACKET, INTERMEDIATE
1
5
115.158.080
BRACKET, LEG
2
6
115.159.080
BRACKET, LEG
2
7
132.002.360
BUMPER, DIAPHRAGM
2
8
135.016.162
BUSHING, THREADED
2
9
170.023.330
CAPSCREW, HEX-HD 7/16-14 X 1.75
8
10
170.024.330
CAPSCREW, HEX HD, 7/16-14 X 1
8
11
170.026.330
CAPSCREW, HEX HEAD 3/8-16 X 3.50
2
12
170.035.330
CAPSCREW, HEX-HD 7/16-14 X 1.50
8
13
170.045.330
CAPSCREW, HEX-HD, 5/16-18 X 1.25
4
14
170.052.330
CAPSCREW, HEX HD 3/8-16 X 2.25
2
15
170.061.115
CAPSCREW, HX-HD 3/8-16 X 1.75
16
16
171.002.110
CAPSCREW, SOC HD, 5/8-11 X 1.50
2
17
196.001.XXX
CHAMBER, INNER
2
18
196.002.XXX
CHAMBER, OUTER
2
19
286.007.XXX
DIAPHRAGM
2
20
312.012.XXX
ELBOW, SUCTION
2
21
312.013.XXX
ELBOW, DISCHARGE
2
22
338.XXX.XXX
VALVE, FLAP ASSEMBLY
4
23
360.041.379
GASKET, PILOT VALVE
1
24
360.048.425
GASKET, AIR VALVE
1
25
518.001.XXX
MANIFOLD
2
26
530.033.000
MUFFLER
1
27
545.007.330
NUT, HEX, 7/16-14
8
28
547.002.110
NUT, NYLON STOP, 1/4-20
8
29
560.001.360
O-RING
2
30
560.022.360
O-RING
2
31
570.001.XXX
PAD, HINGE
4
32
570.009.XXX
PAD, WEAR
2
33
612.047.330
PLATE, DIAPHRAGM
2
34
612.XXX.XXX
PLATE, OUTER DIAPHRAM
2
35
618.003.330
PLUG, PIPE, 1/4"
2
36
618.003.XXX
PLUG, PIPE, 1/4
4
37
620.011.114
PLUNGER, ACTUATOR
2
38
670.005.110
RETAINER, FLAP VALVE
4
39
675.013.XXX
RING, SEALING
4
40
685.007.120
ROD, DIAPHRAGM
1
41
720.004.360
SEAL, U-CUP
2
42
722.070.000
SEAT, FLAP VALVE
4
43
770.005.330
SPACER
2
44
807.018.110
STUD, 1/4-20
8
45
900.005.330
WASHER, LOCK, 3/8"
20
46
900.006.330
WASHER, LOCK, 7/16
16
47
902.003.000
WASHER, SEALING
2
48
560.046.360
O-RING (SST UNITS ONLY) 2
TORQUE: 360 IN-LBS
(40 N-m)
TORQUE: 480 IN-LBS
(54 N-m)
49
NitrileSeals,Bumpers,O-rings,andGaskets,
RetainingRings,Plungers,BushingsGasValve
AssemblywithNitrileO-ringsPilotValveAssembly
withO-rings
FKMSeals,BumpersandO-rings,NitrileGaskets,
RetainingRings,Plungers,Bushings
GasValveAssemblywithFKMO-rings
PilotValveAssemblywithFKMO-rings
NitrileSeals,Bumpers,O-rings,andGaskets,
RetainingRings,Plungers,Bushings
FKMSeals,BumpersandO-rings,Nitrile
Gaskets,RetainingRings,Plungers,Bushings
Diaphragms,FlapValves,HingePads,
WearPads,SealingRings,andStato-Seals
Diaphragms,FlapValves,HingePads,Wear
Pads,SealingRings,andStato-Seals
MODEL SPECIFIC
3: EXP VIEW
Item Part Number Description Qty
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om
12 • Model G20F
Composite Repair Parts List
Item Part Number Description Qty
1* 031.208.360 Air Valve Assy (with Nitrile O-rings) 1
031.208.363 Air Valve Assy (with FKM O-rings) 1
2 070.006.571 Bushing, Intermediate
(included in item #4) 2
3 095.073.002 Pilot Valve Assy
(with Nitrile O-rings) 1
095.073.363 Pilot Valve Assy (with FKM O-rings)1
4 114.002.156 G Intermediate (w/ aluminum center) 1
5 115.158.080 Bracket, Leg 2
6 115.159.080 Bracket, Leg 2
7 132.002.360 Bumper, Diaphragm
(with Nitrile O-rings) 2
132.002.363 Bumper, Diaphragm
(with FKM O-rings) 2
8 135.016.506 Bushing, Plunger 2
9 170.023.330 Capscrew, Hx-Hd 7/16-14 x 1.75
(Aluminum wetted) 8
170.023.330 Capscrew, Hx-Hd 7/16-14 x 1.75
(CI and SS wetted) 16
10 170.024.330 Capscrew, Hx-Hd 7/16-14 x 1.00 8
11 170.026.330 Capscrew, Hx-Hd 3/8-16 x 3.50 2
12 170.035.330 Capscrew, Hx-Hd 7/16-14 x 1.50
(Aluminum wetted) 8
13 170.045.330 Capscrew, Hx-Hd 5/16-18 x 1.25 4
14 170.052.330 Capscrew, Hx-Hd 3/8-16 x 2.25 2
15 170.061.330 Capscrew, Hx-Hd 3/8-16 x 2.00 16
16 171.002.330 Capscrew, Socket, Fl-Hd 5/8-
11 x 1.50 (Alum/CI Wetted) 2
171.002.110 Capscrew, Socket, Fl-Hd 5/8-
11 x 1.50 (Stainless Wetted) 2
17 196.001.157 Chamber, Inner (w/ aluminum
center) Includes #35 2
18 196.002.157NS Chamber, Outer (w/ aluminum
wetted) Includes #36,44 4
196.002.110NS Chamber, Outer (w/ stainless
wetted) Includes #36,44 4
19 286.007.360 Diaphragm - Buna 2
286.007.363 Diaphragm - FKM 2
20 312.012.156 Elbow, Suction (w/ aluminum
wetted) includes item #44) 2
312.012.110 Elbow, Suction (w/ stainless
wetted) includes item #44) 2
21 312.013.156 Elbow, Discharge
(w/ aluminum wetted) 2
312.013.110 Elbow, Discharge
(w/ stainless wetted) 2
22 338.005.360 Valve, Flap Assembly - Buna 4
338.005.363 Valve, Flap Assembly - FKM 4
23 360.041.379 Gasket, Pilot Valve 1
24 360.048.360 Gasket, Air Valve 1
25 518.001.157 Manifold (w/ aluminum wetted) 2
518.001.110 Manifold (w/ stainless wetted) 2
27 545.007.330 Nut, Hex 7/16-14
(aluminum wetted only) 8
ATEX Compliant
LEGEND:
= Items contained within Air End Kits
= Items contianed within Wet End Kits
* Air end kit contains sleeve and spool set only, not complete air valve assembly
Note: Kits contain components specic to the material codes.
545.007.110 Nut, Hex 7/16-14
(stainless wetted only) 8
28 547.002.110 Nut, Nylon Stop 1/4 x 20 8
29 560.001.360 O-ring (Buna) 2
560.001.363 O-ring (FKM) 2
30 560.022.360 O-ring (Buna) 2
560.022.360 O-ring (FKM) 2
31 570.001.360 Pad, Hinge - Buna 4
570.001.363 Pad, Hinge - FKM 4
32 570.009.360 Pad, Wear - Buna 2
570.009.363 Pad, Wear - FKM 2
33 612.047.330 Plate, Inner Diaphragm 2
34 612.008.330 Plate, Outer Diaphragm
(w/ aluminum/cast iron wetted) 2
612.096.110 Plate, Outer Diaphragm
(w/ stainless wetted) 2
35 618.003.330 Plug, Pipe 1/4" NPT 2
36 618.003.330 Plug, Pipe 1/4" NPT
(w/ aluminum wetted) 4
618.003.110 Plug, Pipe 1/4" NPT
(w/ stainless wetted) 4
37 620.011.114 Plunger, Actuator 2
38 670.005.110 Retainer, Flap Valve 4
39 675.013.360 Ring, Sealing - Buna 4
675.013.363 Ring, Sealing - FKM 4
40 685.007.120 Rod, Diaphragm 1
41 720.004.360 Seal, U-Cup - Buna 2
720.004.363 Seal, U-Cup - FKM 2
42 722.070.360 Seat, Check Valve - Buna 4
722.070.363 Seat, Check Valve - FKM 4
43 770.005.330 Spacer (w/ aluminum wetted) 2
44 807.018.110 Stud, 1/4-20 (inlcuded with
item #18 & #20) 8
45 900.005.330 Washer, Lock 3/8" 20
46 900.006.330 Washer, Lock 7/16" (w/ aluminum
wetted) 16
900.006.330 Washer, Lock 7/16"
(w/ stainless wetted) 8
47 902.003.000 Washer, Sealing 2
48 560.046.360 O-ring (w/ stainless steel
wetted - Buna) 2
560.070.610 O-ring (w/ stainless steel
wetted - FKM) 2
49 902.025.000 Cable, Grounding 1
MODEL SPECIFIC
3: EXP VIEW
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om Model G20F • 13
Material Codes - The Last 3 Digits of Part Number
000.....Assembly, sub-assembly;
and some purchased items
010.....Cast Iron
015.....Ductile Iron
020.....Ferritic Malleable Iron
080.....Carbon Steel, AISI B-1112
110 .....Alloy Type 316 Stainless Steel
111 .....Alloy Type 316 Stainless Steel
(Electro Polished)
112 .....Alloy C
113 .....Alloy Type 316 Stainless Steel
(Hand Polished)
114 .....303 Stainless Steel
115 .....302/304 Stainless Steel
117 .....440-C Stainless Steel (Martensitic)
120.....416 Stainless Steel
(Wrought Martensitic)
148.....Hardcoat Anodized Aluminum
150.....6061-T6 Aluminum
152.....2024-T4 Aluminum (2023-T351)
155.....356-T6 Aluminum
156.....356-T6 Aluminum
157.....Die Cast Aluminum Alloy #380
158.....Aluminum Alloy SR-319
162.....Brass, Yellow, Screw Machine Stock
165.....Cast Bronze, 85-5-5-5
166.....Bronze, SAE 660
170.....Bronze, Bearing Type,
Oil Impregnated
180.....Copper Alloy
305.....Carbon Steel, Black Epoxy Coated
306.....Carbon Steel, Black PTFE Coated
307.....Aluminum, Black Epoxy Coated
308.....Stainless Steel, Black PTFE Coated
309.....Aluminum, Black PTFE Coated
313.....Aluminum, White Epoxy Coated
330.....Zinc Plated Steel
332.....Aluminum, Electroless Nickel Plated
333.....Carbon Steel, Electroless
Nickel Plated
335.....Galvanized Steel
337.....Silver Plated Steel
351.....Food Grade Santoprene®
353.....Geolast; Color: Black
354.....Injection Molded #203-40
Santoprene®Duro 40D +/-5;
Color: RED
356.....Hytrel®
357.....Injection Molded Polyurethane
358.....Urethane Rubber
(Some Applications)
(Compression Mold)
359.....Urethane Rubber
360.....Nitrile Rubber Color coded: RED
363.....FKM (Fluorocarbon)
Color coded: YELLOW
364.....EPDM Rubber
Color coded: BLUE
365.....Neoprene Rubber
Color coded: GREEN
366.....Food Grade Nitrile
368.....Food Grade EPDM
371.....Philthane (Tuftane)
374.....Carboxylated Nitrile
375.....Fluorinated Nitrile
378.....High Density Polypropylene
379.....Conductive Nitrile
408.....Cork and Neoprene
425.....Compressed Fibre
426.....Blue Gard
440.....Vegetable Fibre
500.....Delrin®500
502.....Conductive Acetal, ESD-800
503.....Conductive Acetal, Glass-Filled
506.....Delrin®150
520.....Injection Molded PVDF
Natural color
540.....Nylon
542.....Nylon
544.....Nylon Injection Molded
550.....Polyethylene
551.....Glass Filled Polypropylene
552.....Unlled Polypropylene
555.....Polyvinyl Chloride
556.....Black Vinyl
557.....Conductive Polypropylene
558.....Conductive HDPE
570.....Rulon II®
580.....Ryton®
600.....PTFE (virgin material)
Tetrauorocarbon (TFE)
603.....Blue Gylon®
604.....PTFE
606.....PTFE
607.....Envelon
608.....Conductive PTFE
610.....PTFE Encapsulated Silicon
611 .....PTFE Encapsulated FKM
632.....Neoprene/Hytrel®
633.....FKM/PTFE
634.....EPDM/PTFE
635.....Neoprene/PTFE
637.....PTFE, FKM/PTFE
638.....PTFE, Hytrel®/PTFE
639.....Nitrile/TFE
643.....Santoprene®/EPDM
644.....Santoprene®/PTFE
656.....Santoprene®Diaphragm and
Check Balls/EPDM Seats
661.....EPDM/Santoprene®
666.....FDA Nitrile Diaphragm,
PTFE Overlay, Balls, and Seals
668.....PTFE, FDA Santoprene®/PTFE
• Delrin and Hytrel are registered
tradenames of E.I. DuPont.
• Nylatron is a registered tradename
of Polymer Corp.
• Gylon is a registered tradename
of Garlock, Inc.
• Santoprene is a registered tradename
of Exxon Mobil Corp.
• Rulon II is a registered tradename
of Dixion Industries Corp.
• Ryton is a registered tradename
of Phillips Chemical Co.
• Valox is a registered tradename
of General Electric Co.
RECYCLING
Many components of SANDPIPER®AODD
pumps are made of recyclable materials.
We encourage pump users to recycle worn
out parts and pumps whenever possible,
after any hazardous pumped fluids are
thoroughly ushed.
UNIVERSAL ALL SP
3: EXP VIEW
Air Distribution Valve Assembly
SANDPIPERPUMP.COMModel HDB1½/HDB40 • 12
hdb15dl7sm-rev0817
Air Distribution Valve Assembly
MAIN GAS VALVE ASSEMBLY - BUNA O-RINGS
Item Part Number Description Qty
1 031.208.360 Air Valve Assembly 1
1-A 095.043.156 Body, Air Valve 1
1-B 031.012.000 Sleeve and Spool Set 1
1-C 132.014.358 Bumper 2
1-D 560.020.360 O-Ring 6
1-E 360.010.360 Gasket 2
1-F 165.011.157 End Cap 2
1-G 170.032.330 Hex Head Capscrew 8
MAIN GAS VALVE ASSEMBLY - FKM O-RINGS
Item Part Number Description Qty
1 031.208.363 Air Valve Assembly-FKM 1
1-A 095.043.156 Body, Air Valve 1
1-B 031.012.000 Sleeve and Spool Set 1
1-C 132.014.358 Bumper 2
1-D 560.020.363 O-Ring-FKM 6
1-E 360.010.363 Gasket-FKM 2
1-F 165.011.157 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 spools (1-B) cannot be interchanged.
LEGEND:
= Items contained within Air End Kits
Note:
4: AIR END
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om
14 • Model G20F
4: AIR END
Pilot Valve Assembly
Pilot Valve Assembly
3-A
3-F
3-D
3-B
3-C
3-E
Pilot Valve Assembly with Nitrile O-rings
Item Part Number Description Qty
3 095.073.002 Gas Pilot Valve Assembly 1
3A 095.070.558 Gas Pilot Valve Body 1
3B 755.025.001 Pilot Valve Sleeve Assembly 1
3C 560.033.360 O-Ring 4
3D 775.026.000 Pilot Valve Spool Assembly 1
3E 560.023.360 O-Ring 2
3F 675.037.080 Retaining Ring 1
Pilot Valve Assembly with FKM O-rings
Item Part Number Description Qty
3 095.073.363 Gas Pilot Valve Assembly 1
3A 095.070.558 Gas Pilot Valve Body 1
3B 755.025.363 Pilot Valve Sleeve Assembly 1
3C 560.033.363 O-Ring 4
3D 775.026.363 Pilot Valve Spool Assembly 1
3E 560.023.363 O-Ring 2
3F 675.037.080 Retaining Ring 1
Pilot Valve Servicing
With Pilot Valve removed from pump.
Step 1: Remove snap ring (3-F).
Step 2: Remove sleeve (3-B), inspect O-Rings (3-C),
replace if required.
Step 3: Remove spool (3-D) from sleeve (3-B),
inspect O-Rings (3-E), replace if required.
Step 4: Lightly lubricate O-Rings (3-C) and (3-E).
Reassemble in reverse order.
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om Model G20F • 15
MODEL SPECIFIC
4: AIR END
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om
16 • Model G20F
Diaphragm Servicing
With manifolds and outer chambers
removed, remove diaphragm assemblies from
diaphragm rod. DO NOT use a pipe wrench or similar
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.
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.
Reassembly: There are two different types
of diaphragm plate assemblies utilized throughout the
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
inner plate in a vise. Ensure that the plates are being
installed with the outer radius against the diaphragm.
Lightly lubricate, with a compatible material,
the inner faces of both outer and inner diaphragm plates
when using on non Overlay diaphragms (For EPDM
water is recommended). No lubrication is required.
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 gas side.
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, then re-torque the assembly to compensate
for stress relaxation in the clamped assembly.
Thread one assembly onto the diaphragm
rod with sealing washer (when used) and bumper.
Install diaphragm rod assembly into pump
and secure by installing the outer chamber in place
and tightening the capscrews.
On opposite side of pump, thread the
remaining assembly onto the diaphragm rod. Using a
torque wrench, tighten the assembly to the diaphragm
rod. Align diaphragm through bolt holes, always going
forward past the recommended torque. Torque values
are called out on the exploded view. NEVER reverse
to align holes, if alignment cannot be achieved
without damage to diaphragm, loosen complete
assemblies, rotate diaphragm and reassemble as
described above.
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.
UNIVERSAL ALL SP
5: WET END
g20fmdl1sm-rev1218
sa ndp ipe rpu mp.c om Model G20F • 17
Pumping Hazardous Liquids
When a diaphragm fails, the pumped liquid or fumes enter the natural gas
end of the pump. Fumes are exhausted into the surrounding environment. When
pumping hazardous or toxic materials, the exhaust gas must be piped to an
appropriate area for safe disposal. See illustration #1 at right.
This pump can be submerged if the pump materials of construction are
compatible with the liquid being pumped. The natural gas exhaust must be
piped above the liquid level. See illustration #2 at right. Piping used for the gas
exhaust must not be smaller than 1" (2.54 cm) diameter. Reducing the pipe size
will restrict natural gas ow and reduce pump performance. When the pumped
product source is at a higher level than the pump (ooded suction condition), pipe
the exhaust gas higher than the product source to prevent siphoning spills. See
illustration #3 at right.
The manufacturer recommends
installing a exible conductive hose or connection between the pump and any
rigid plumbing. This reduces stresses on the molded threads of the natural gas
exhaust port. Failure to do so may result in damage to the natural gas distribution
valve body.
Any piping or hose connected to the pump’s natural gas exhaust port must
be conductive and physically supported. Failure to support these connections
could also result in damage to the valve body.
If a high pressure gas spike is possible through the exhaust line, a pressure
regulator is required in the exhaust piping.
WARNING
Natural gas exhaust is to be
vented to low pressure safe
location using conductive Nitrile
rubber hose or metal piping in
accordance with local fire and
environmental codes, or an industry
or nationally recognized code
having jurisdiction over specific
installations, and/or CAN/CGA
B149, Installation Codes.
NATURAL GAS EXHAUST ILLUSTRATION
SAFE GAS
EXHAUST
DISPOSAL
AREA
PUMP INSTALLATION AREA
1" DIAMETER GAS
EXHAUST PIPING
1" DIAMETER GAS
EXHAUST PIPING
MUFFLER
LIQUID
LEVEL
SUCTION
LINE
LIQUID
LEVEL
SUCTION
LINE
MUFFLER
MUFFLER
1" DIAMETER GAS
EXHAUST PIPING
Illustration #1
Illustration #3
5: WET END
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, F 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 EN809:2012, 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. ~
UNIVERSAL ALL SP
7: WARRANTY
DATE/APPROVAL/TITLE:
26 SEP 2018 David Roseberry, Director of Engineering
EU Declaration of Conformity
Manufacturer:
Warren Rupp, Inc.
A Unit of IDEX Corporation
800 North Main Street
Mansfield, OH 44902 USA
Warren Rupp, Inc. declares that Air Operated Double Diaphragm Pumps (AODD) and Surge Suppressors
listed below comply with the requirements of Directive 2014/34/EU and all applicable standards.
Applicable Standards
• EN ISO 80079-36: 2016 • EN ISO 80079-37: 2016 • EN ISO 60079-25: 2010
Hazardous Location Applied:
II 2 G Ex h IIC T5...225°C (T2) Gb
II 2 D Ex h IIIC T100°C...T200°C Db
II 2 G Ex h IIB T5...225°C (T2) Gb
II 2 D Ex h IIIB T100°C...T200°C Db
• Metallic pump models with external aluminum components (S Series, HD Series, G Series,
DMF Series, MSA Series, U Series, F Series, T Series, EH Series, SH Series, GH Series )
• Conductive plastic pump models with integral muffler (S Series, PB Series)
• Tranquilizer® surge suppressors
Hazardous Location Applied:
I M1 Ex h I Ma
II 1 G Ex h IIC T5...225°C (T2) Ga
II 1 D Ex h IIIC T100°C...T200°C Da
II 2 G Ex h ia IIC T5 Gb
II 2 D Ex h ia IIIC T100°C Db
II 2 G Ex h mb IIC T5 Gb
II 2 D Ex mb tb IIIC T100° Db
• Metallic pump models with no external aluminum (S series, HD Series, G series)
• Conductive plastic pumps equipped with metal muffler (S series, PB Series)
• ATEX pump models equipped with ATEX rated pulse output kit or solenoid kit
See “ATEX Details” page in user’s manual for more information
See “Safety Information” page for conditions of safe use
Meander 1051
6825 MJ Arnhem
The Netherlands
1. AODD Pumps and Surge Suppressors - Technical File No.: 20310400-1410/MER
2. AODD Pumps - EU Type Examination Certificate No.: DEKRA 18ATEX0094X - DEKRA Certification B.V. (0344)
ATEX
UNIVERSAL ALL SP
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