Sandpiper SA1 Parts list manual

s a n d p i p e r p u m p .c o m
Model SA1
& SA25
Heavy Duty Flap Valve
Design Level 5
Warren Rupp, Inc.
A Unit of IDEX Corporation
800 N. Main St.,
Manseld, Ohio 44902 USA
Telephone [phone]
Fax [phone]
SANDPIPERPUMP.COM
© Copyright 2017 Warren Rupp, Inc.
All rights reserved
10.69
271
12.38
314
11.36
288
"C"
5.29
134
3.79
96
"A"
"B"
2.89
73
AIR EXHAUST
3/4" FNPT
SUCTION PORT
1" FNPT (SA1)
1" BSPT (SA25)
AIR INLET
1/2" FNPT
DISCHARGE PORT
1" FNPT (SA1)
1" BSPT (SA25)
9.00
229
8.56
217
4X
.28 [7] MOUNTING HOLE
NOTE:
UNIT FURNISHED WITH SUB-BASE PLATE
AND RUBBER FEET AS STANDARD. FOR
STATIONARY BOLT DOWN USE, RUBBER
FEET CAN BE REMOVED.
SA1 / SA25
HEAVY DUTY FLAP VALVE PUMP
TOP PORTED
DIMENSIONAL TOLERANCE 1/8 [3]
[XX] = MILLIMETERS
SUCTION & DISCHARGE CONNECTIONS
SA1
1" NPT FEMALE THREADED
CONNECTIONS
SA25
1" BSP TAPERED FEMALE THREADED
CONNECTIONS
PUMP
CONFIGURATION
DIM "A" DIM "B" DIM "C"
ALUMINUM
CENTER SECTION
3.95 [100] 5.86 [149] 11.11 [282]
CAST IRON
CENTER SECTION
4.10 [104] 5.54 [141] 11.26 [286]
PULSE OUTPUT
CONFIGURATION
2.45
62
11.36
288
"D"
"A"
"B"
"C"
3.79
96
5.29
134
6.89
175
AIR EXHAUST
3/4" FNPT
DISCHARGE PORT
1" FNPT (HDF1)
1" BSPT (HDF25)
AIR INLET
1/2" FNPT
SUCTION PORT
1" FNPT (HDF1)
1" BSPT (HDF25)
9.00
229
8.56
217
4X
.28 [7] MOUNTING HOLE
NOTE:
UNIT FURNISHED WITH SUB-BASE PLATE
AND RUBBER FEET AS STANDARD. FOR
STATIONARY BOLT DOWN USE, RUBBER
FEET CAN BE REMOVED.
SA1 / SA25
HEAVY DUTY FLAP VALVE PUMP
BOTTOM PORTED
DIMENSIONAL TOLERANCE 1/8 [3]
[XX] = MILLIMETERS
PUMP
COFIGURATION
DIM "A" DIM "B" DIM "C" DIM "D"
ALUMINUM
CENTER SECTION
3.95 [100] 5.86 [149] 11.11 [282] 14.55 [370]
CAST IRON
CENTER SECTION
4.10 [104] 5.54 [141] 11.26 [286] 15.75 [400]
PULSE OUTPUT
CONFIGURATION
SUCTION & DISCHARGE CONNECTIONS
SA1
1" NPT FEMALE THREADED
CONNECTIONS
SA25
1" BSP TAPERED FEMALE THREADED
CONNECTIONS
Certied Quality
ISO 9001 Certied
ISO 14001 Certied
SERVICE & OPERATING MANUAL
Original Instructions
1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY

sa1dl5sm-rev0217
sandp ipe rpu mp.c om
IMPORTANT
Read the safety warnings and instructions in this manual
before pump installation and start-up. Failure to comply with
the recommendations stated in this manual could damage the
pump and void factory warranty.
When used for toxic or aggressive uids, the pump should
always be ushed clean prior to disassembly.
Airborne particles and loud noise hazards. Wear eye and ear
protection.
Before maintenance or repair, shut off the compressed air line,
bleed the pressure, and disconnect the air line from the pump.
Be certain that approved eye protection and protective clothing
are worn at all times. Failure to follow these recommendations
may result in serious injury or death.
ATEX compliant pumps are suitable for use in explosive atmospheres when the equipment is properly grounded
in accordance with local electrical codes. Pumps equipped with electrically conductive diaphragms are suitable for
the transfer of conductive or non-conductive uids of any explosion group. When operating pumps equipped with
non-conductive diaphragms that exceed the maximum permissible projected area, as dened in EN 13463-1: 2009
section 6.7.5 table 9, the following protection methods must be applied:
• Equipment is always used to transfer electrically conductive uids or
• Explosive environment is prevented from entering the internal portions of the pump, i.e. dry running
For further guidance 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
WARNING
Pump not designed, tested or certied to be powered by
compressed natural gas. Powering the pump with natural
gas will void the warranty.
Use safe practices when lifting
kg
WARNING
The use of non-OEM replacement parts will void (or negate)
agency certications, including CE, ATEX, CSA, 3A and EC1935
compliance (Food Contact Materials). Warren Rupp, Inc. cannot
ensure nor warrant non-OEM parts to meet the stringent
requirements of the certifying agencies.
UNIVERSAL ALL AODD

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
Table of Contents
SECTION 1: PUMP SPECIFICATIONS ................1
• Explanation of Nomenclature
• Performance
• Materials
• Dimensional Drawings
SECTION 2: INSTALLATION & OPERATION ......5
• Principle of Pump Operation
• Recommended Installation Guide
• Troubleshooting Guide
SECTION 3: EXPLODED VIEW ...........................8
• Composite Repair Parts Drawing
• Composite Repair Parts List
• Material Codes
SECTION 4: AIR END .......................................11
• Air Distribution Valve Assembly
• Air Valve with Stroke Indicator Assembly
• Pilot Valve Assembly
SECTION 5: WET END .....................................14
• Diaphragm Servicing
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

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
1 • Model SA1/SA25
Explanation of Pump Nomenclature
ATEX Detail
Wet End Materials
B Nitrile
NNeoprene
RHytrel
SSantoprene
VFKM
EEPDM
Design Level
5
Construction
A Aluminum Wetted, Aluminum Air
SI Stainless Steel Wetted, Cast Iron Air
SS Stainless Steel Wetted, Aluminum Air
Pump Series
SSANDPIPER®
Pump Design
AFlap
Pump Size
1 1"
25 1" BSPT (Tapered Thread)
Discharge Porting Position
D Bottom
ET Dual Top
T Top
ED Dual Bottom
Options
P1 Intrinsically Safe ATEX Compliant
Pulse Output
Your Serial #: (ll in from pump nameplate) _____________________________________
__ __ _____ __ ___ __ __
Pump Pump Pump Size Discharge Diaphragm/ Design Construction
Series Design and Options Porting Valve Level
XX X XXXXXX, XX XXX X XX
Model #:
(ll in from pump
nameplate)
Your Model #:
HDF1
ATEX Detail Construction Options
HDB1½, ST1½
ATEX Detail Construction Options
HDB2, SB1, SA1
ATEX Detail
Construction Options
II 1G c T5
II 1D c T100°C
I M1 c
I M2 c
SI, HI
II 2G c T5
II 2D c T100°C A, SI, SS, HC, HI
II 2G Ex ia c IIC T5
II 2D Ex c iaD 20 IP67 T100°C A, HC, HI, SI, SS
00
II 2G Ex ia c IIC T5
II 2D Ex c iaD 20 IP67 T100°C A, HC, HI, I, II, SI, SS P1
II 1G c T5
II 1D c T100°C
I M1 c
I M2 c
II, SI, HI
P1
II 1G c T5
II 1D c T100°C
I M1 c
I M2 c
II, SI, HI N/A
II 2G c T5
II 2D c T100°C A, CI, II, HI, HC, SI, SS N/A
00
II 2G c T5
II 2D c T100°C A, HC, I, SI, SS
00
00
MODEL SPECIFIC
1: PUMP SPECS

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om Model SA1/SA25 • 2
Performance
SA1/SA25
SUCTION/DISCHARGE PORT SIZE
• SA1: 1” (25.4mm) NPT(F)
• SA25: 1” (25.4mm) BSP Tapered
CAPACITY
• 0 to 42 gallons per minute
(0 to 159 liters per minute)
AIR DISTRIBUTION VALVE
• No-lube, no-stall design
SOLIDS-HANDLING
• Up to 1 in. (25.4mm)
HEADS UP TO
• 125 psi or 289 ft. of water
(8.8 Kg/cm2 or 88 meters)
MAXIMUM OPERATING PRESSURE
• 125 psi (8.6 bar)
DISPLACEMENT/STROKE
• .10 Gallon / .38 liter
SHIPPING WEIGHT
• Aluminum 48 lbs. (21kg)
• Cast Iron 76 lbs. (34kg)
• Stainless Steel 79 lbs. (36kg)
Materials
Material Prole: Operating
Temperatures:
Max. Min.
Conductive Acetal: Tough, impact resistant, ductile. Good
abrasion resistance and low friction surface. Generally inert, with
good chemical resistance except for strong acids and oxidizing
agents.
190°F
88°C
-20°F
-29°C
EPDM: Shows very good water and chemical resistance. Has
poor resistance to oils and solvents, but is fair in ketones and
alcohols.
280°F
138°C
-40°F
-40°C
FKM: (Fluorocarbon) Shows good resistance to a wide range
of oils and solvents; especially all aliphatic, aromatic and
halogenated hydrocarbons, acids, animal and vegetable oils.
Hot water or hot aqueous solutions (over 70°F(21°C)) will
attack FKM.
350°F
177°C
-40°F
-40°C
Hytrel®: Good on acids, bases, amines and glycols at room
temperatures only.
220°F
104°C
-20°F
-29°C
Neoprene: All purpose. Resistance to vegetable oils. Generally
not affected by moderate chemicals, fats, greases and many
oils and solvents. Generally attacked by strong oxidizing acids,
ketones, esters and nitro hydrocarbons and chlorinated aromatic
hydrocarbons.
200°F
93°C
-10°F
-23°C
Nitrile: General purpose, oil-resistant. Shows good solvent, oil,
water and hydraulic uid resistance. Should not be used with
highly polar solvents like acetone and MEK, ozone, chlorinated
hydrocarbons and nitro hydrocarbons.
190°F
88°C
-10°F
-23°C
Nylon: 6/6 High strength and toughness over a wide
temperature range. Moderate to good resistance to fuels, oils
and chemicals.
180°F
82°C
32°F
0°C
Polypropylene: A thermoplastic polymer. Moderate tensile
and ex strength. Resists stong acids and alkali. Attacked by
chlorine, fuming nitric acid and other strong oxidizing agents.
180°F
82°C
32°F
0°C
PVDF: (Polyvinylidene Fluoride) A durable uoroplastic with
excellent chemical resistance. Excellent for UV applications.
High tensile strength and impact resistance.
250°F
121°C
0°F
-18°C
Santoprene®: Injection molded thermoplastic elastomer with
no fabric layer. Long mechanical ex life. Excellent abrasion
resistance.
275°F
135°C
-40°F
-40°C
UHMW PE: A thermoplastic that is highly resistant to a broad
range of chemicals. Exhibits outstanding abrasion and impact
resistance, along with environmental stress-cracking resistance.
180°F
82°C
-35°F
-37°C
Urethane: Shows good resistance to abrasives. Has poor
resistance to most solvents and oils.
150°F
66°C
32°F
0°C
Virgin PTFE: (PFA/TFE) Chemically inert, virtually impervious.
Very few chemicals are known to chemically react with PTFE;
molten alkali metals, turbulent liquid or gaseous uorine and
a few uoro-chemicals such as chlorine triuoride or oxygen
diuoride which readily liberate free uorine at elevated
temperatures.
220°F
104°C
-35°F
-37°C
Maximum and Minimum Temperatures are the limits for which these materials can be operated.
Temperatures coupled with pressure affect the longevity of diaphragm pump components.
Maximum life should not be expected at the extreme limits of the temperature ranges.
Metals:
Alloy C: Equal to ASTM494 CW-12M-1 specication for nickel and nickel alloy.
Stainless Steel: Equal to or exceeding ASTM specication A743 CF-8M for corrosion
resistant iron chromium, iron chromium nickel and nickel based alloy castings for
general applications. Commonly referred to as 316 Stainless Steel in the pump industry.
For specic applications, always consult the Chemical Resistance Chart.
CAUTION! Operating temperature limitations are as follows:
Ambient temperature range: -20°C to +40°C
Process temperature range: -20°C to +80°C for models rated as category 1 equipment
-20°C to +100°C for models rated as category 2 equipment
In addition, the ambient temperature range and the process temperature range do not exceed the operating temperature range of the applied non-metallic parts as listed in the manuals of the pumps.
ATEX Detail
0 to 42 gallons per minute
(0 to 159 liters per minute)
Occasional solids only,
to nearly 1/4"
(6.3 mm)
125 psi or 289 ft. of water
(8.8 Kg/cm
2
or 88 meters)
st1dl4ds-REV1009
T = PTFE
T/N = PTFE Diaphraagm/Neoprene Driver
T/V = PTFE Diaphragm/FKM Driver
T/T/N = PTFE Pumping Diaphragm/PTFE over Neoprene Driver
Meanings of
Abbreviations: PE = Conductive HDPE
304SS = 304 Stainless Steel except
Manifold Bolts which are PS
AL = Aluminum
DC = Die Cast
PS = Plated Steel
HC = Alloy C
SS = Stainless Steel
DNG-4-A X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/N T T PE AL380DC 46
DVG-4-A X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/V T T PE AL380DC 46
DGNG-4-A X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/T/N T T PE AL380DC 46
DNG-4-SS X SS SS
SS SS
SS SS
Alloy C Alloy C Alloy C Alloy C
AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/N T T PE AL380DC 67
DVG-4-SS X AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/V T T PE AL380DC 67
DGNG-4-SS X AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/T/N T T PE AL380DC 67
MATERIALS OF CONSTRUCTION
Type 4
Inner
Diaphragm
Plate
Intermediate
Housing
Diaphragm
Ball
Valve
Material
Seat/
Manifold
Gasket
Shipping
Wt. (lbs)
Air
Valve
CapDiaphragm
Rod
Valve
Seat
Hard-
ware
Outer
Diaphragm
Plate
INTAKE/DISCHARGE PIPE SIZE CAPACITY AIR VALVE SOLIDS-HANDLING HEADS UP TO
No-lube, no-stall
design.
PERFORMANCE CURVES
(SANDPIPER®pumps are designed to be powered only by compressed air)
Temperature Limit: 212°F -
100
°
C
MAXIMUM
SANDPIPER®Containment Duty Pumps: Sealless Safety
This pump is part of the Containment Duty Pumps. It is specially fitted with PTFE diaphragms as well as elastomeric or elastomeric/PTFE driver diaphragms. The liquid-filled spill chambers
provide an additional chemically-resistant barrier, should a pumpIng diaphragm fail. The Spill Containment design gives the pump user advanced warning of diaphragm failure, before
pumpage can damage the air valve or be released into the work environment. Three optional leak detectors available for this model:
• Mechanical VIP Leak Detector 031-026-000 • Electronic Leak Detector (115V) 032-043-000 • Electronic Leak Detector (220V) 032-043-000
The Containment Duty pumps offer many different levels of materials and spill monitoring devices designed to fit a variety of applications and budgets.
Kit available to convert to top porting
Manifold
Porting
Side
Manifold Inner
Chamber
Outer
Chamber
Driver
Chamber
ST1 & ST25
Performance based on water
at ambient temperature.
Average displacement per
pump stroke: 0.34 liter.
SANDPIPER®Models
SANDPIPER®Models
ST1 & ST25
Performance based on water
at ambient temperature.
Average displacement per
pump stroke: .09 gallon.
ST1: 1" NPT
ST25: 1" BSP Tapered
Containment Duty
ST1 Type 4
ST25 Type 4
Air-Operated
Double-Diaphragm
Pump
ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA
Quality System
ISO9001 Certified
Environmental
Management System
ISO14001 Certified
SANDPIPER® is a registered tradename of IDEX AODD, Inc.
®
DNG-4-HC X AL356T6 AL380DC PS AL380DC 416SS 304SS T/N T T PE AL380DC 67
II 2GD T5
CE
0 to 42 gallons per minute
(0 to 159 liters per minute)
Occasional solids only,
to nearly 1/4"
(6.3 mm)
125 psi or 289 ft. of water
(8.8 Kg/cm
2
or 88 meters)
st1dl4ds-REV1009
T = PTFE
T/N = PTFE Diaphraagm/Neoprene Driver
T/V = PTFE Diaphragm/FKM Driver
T/T/N = PTFE Pumping Diaphragm/PTFE over Neoprene Driver
Meanings of
Abbreviations: PE = Conductive HDPE
304SS = 304 Stainless Steel except
Manifold Bolts which are PS
AL = Aluminum
DC = Die Cast
PS = Plated Steel
HC = Alloy C
SS = Stainless Steel
DNG-4-A X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/N T T PE AL380DC 46
DVG-4-A X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/V T T PE AL380DC 46
DGNG-4-A X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/T/N T T PE AL380DC 46
DNG-4-SS X SS SS
SS SS
SS SS
Alloy C Alloy C Alloy C Alloy C
AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/N T T PE AL380DC 67
DVG-4-SS X AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/V T T PE AL380DC 67
DGNG-4-SS X AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/T/N T T PE AL380DC 67
MATERIALS OF CONSTRUCTION
Type 4
Inner
Diaphragm
Plate
Intermediate
Housing
Diaphragm
Ball
Valve
Material
Seat/
Manifold
Gasket
Shipping
Wt. (lbs)
Air
Valve
CapDiaphragm
Rod
Valve
Seat
Hard-
ware
Outer
Diaphragm
Plate
INTAKE/DISCHARGE PIPE SIZE CAPACITY AIR VALVE SOLIDS-HANDLING HEADS UP TO
No-lube, no-stall
design.
PERFORMANCE CURVES
(SANDPIPER®pumps are designed to be powered only by compressed air)
Temperature Limit: 212°F -
100
°
C
MAXIMUM
SANDPIPER®Containment Duty Pumps: Sealless Safety
This pump is part of the Containment Duty Pumps. It is specially fitted with PTFE diaphragms as well as elastomeric or elastomeric/PTFE driver diaphragms. The liquid-filled spill chambers
provide an additional chemically-resistant barrier, should a pumpIng diaphragm fail. The Spill Containment design gives the pump user advanced warning of diaphragm failure, before
pumpage can damage the air valve or be released into the work environment. Three optional leak detectors available for this model:
• Mechanical VIP Leak Detector 031-026-000 • Electronic Leak Detector (115V) 032-043-000 • Electronic Leak Detector (220V) 032-043-000
The Containment Duty pumps offer many different levels of materials and spill monitoring devices designed to fit a variety of applications and budgets.
Kit available to convert to top porting
Manifold
Porting
Side
Manifold Inner
Chamber
Outer
Chamber
Driver
Chamber
ST1 & ST25
Performance based on water
at ambient temperature.
Average displacement per
pump stroke: 0.34 liter.
SANDPIPER®Models
SANDPIPER®Models
ST1 & ST25
Performance based on water
at ambient temperature.
Average displacement per
pump stroke: .09 gallon.
ST1: 1" NPT
ST25: 1" BSP Tapered
Containment Duty
ST1 Type 4
ST25 Type 4
Air-Operated
Double-Diaphragm
Pump
ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA
Quality System
ISO9001 Certified
Environmental
Management System
ISO14001 Certified
SANDPIPER® is a registered tradename of IDEX AODD, Inc.
®
DNG-4-HC X AL356T6 AL380DC PS AL380DC 416SS 304SS T/N T T PE AL380DC 67
II 2GD T5
CE
MODEL SPECIFIC UNIVERSAL ALL AODD
1: PUMP SPECS

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
3 • Model SA1/SA25
SA1 & SA25 Heavy Duty Flap Valve - Top Ported
Dimensions in inches (metric dimensions in brackets). Dimensional Tolerance .125" (3mm).
10.69
271
12.38
314
11.36
288
"C"
5.29
134
3.79
96
"A"
"B"
2.89
73
AIR EXHAUST
3/4" FNPT
SUCTION PORT
1" FNPT (SA1)
1" BSPT (SA25)
AIR INLET
1/2" FNPT
DISCHARGE PORT
1" FNPT (SA1)
1" BSPT (SA25)
9.00
229
8.56
217
4X
.28 [7] MOUNTING HOLE
NOTE:
UNIT FURNISHED WITH SUB-BASE PLATE
AND RUBBER FEET AS STANDARD. FOR
STATIONARY BOLT DOWN USE, RUBBER
FEET CAN BE REMOVED.
SA1 / SA25
HEAVY DUTY FLAP VALVE PUMP
TOP PORTED
DIMENSIONAL TOLERANCE 1/8 [3]
[XX] = MILLIMETERS
SUCTION & DISCHARGE CONNECTIONS
SA1
1" NPT FEMALE THREADED
CONNECTIONS
SA25
1" BSP TAPERED FEMALE THREADED
CONNECTIONS
PUMP
CONFIGURATION
DIM "A" DIM "B" DIM "C"
ALUMINUM
CENTER SECTION
3.95 [100] 5.86 [149] 11.11 [282]
CAST IRON
CENTER SECTION
4.10 [104] 5.54 [141] 11.26 [286]
PULSE OUTPUT
CONFIGURATION
Dimensional Drawings
MODEL SPECIFIC
1: PUMP SPECS

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om Model SA1/SA25 • 4
SA1 & SA25 Heavy Duty Flap Valve - Bottom Ported
Dimensions in inches (metric dimensions in brackets). Dimensional Tolerance .125" (3mm).
2.45
62
11.36
288
"D"
"A"
"B"
"C"
3.79
96
5.29
134
6.89
175
AIR EXHAUST
3/4" FNPT
DISCHARGE PORT
1" FNPT (HDF1)
1" BSPT (HDF25)
AIR INLET
1/2" FNPT
SUCTION PORT
1" FNPT (HDF1)
1" BSPT (HDF25)
9.00
229
8.56
217
4X
.28 [7] MOUNTING HOLE
NOTE:
UNIT FURNISHED WITH SUB-BASE PLATE
AND RUBBER FEET AS STANDARD. FOR
STATIONARY BOLT DOWN USE, RUBBER
FEET CAN BE REMOVED.
SA1 / SA25
HEAVY DUTY FLAP VALVE PUMP
BOTTOM PORTED
DIMENSIONAL TOLERANCE 1/8 [3]
[XX] = MILLIMETERS
PUMP
COFIGURATION
DIM "A" DIM "B" DIM "C" DIM "D"
ALUMINUM
CENTER SECTION
3.95 [100] 5.86 [149] 11.11 [282] 14.55 [370]
CAST IRON
CENTER SECTION
4.10 [104] 5.54 [141] 11.26 [286] 15.75 [400]
PULSE OUTPUT
CONFIGURATION
SUCTION & DISCHARGE CONNECTIONS
SA1
1" NPT FEMALE THREADED
CONNECTIONS
SA25
1" BSP TAPERED FEMALE THREADED
CONNECTIONS
Dimensional Drawings
1: PUMP SPECS

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
5 • Model SA1/SA25
Air-Operated Double Diaphragm (AODD) pumps are powered
by compressed air or nitrogen.
The main directional (air) control valve ①distributes
compressed air to an air chamber, exerting uniform pressure
over the inner surface of the diaphragm
②. At the same time,
the exhausting air ③ from behind the opposite diaphragm
is directed through the air valve assembly(s) to an exhaust
port ④.
As inner chamber pressure (P1) exceeds liquid chamber
pressure (P2), the rod ⑤connected diaphragms shift
together creating discharge on one side and suction on the
opposite side. The discharged and primed liquid’s directions
are controlled by the check valves (ball or ap)⑥orientation.
The pump primes as a result of the suction stroke. The
suction stroke lowers the chamber pressure (P3) increasing
the chamber volume. This results in a pressure differential
necessary for atmospheric pressure (P4) to push the uid
through the suction piping and across the suction side check
valve and into the outer uid chamber ⑦.
Suction (side) stroking also initiates the reciprocating
(shifting, stroking or cycling) action of the pump. The suction
diaphragm’s movement is mechanically pulled through its
stroke. The diaphragm’s inner plate makes contact with an
actuator plunger aligned to shift the pilot signaling valve.
Once actuated, the pilot valve sends a pressure signal to the
opposite end of the main directional air valve, redirecting the
compressed air to the opposite inner chamber.
Principle of Pump Operation
Air Line
Discharged
Fluid
Discharge
Stroke Suction
Stroke
Primed
Fluid
SAFE AIR
EXHAUST
DISPOSAL
AREA
PUMP INSTALLATION AREA
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
MUFFLER
LIQUID
LEVEL
SUCTION
LINE
LIQUID
LEVEL
SUCTION
LINE
MUFFLER
MUFFLER
SUBMERGED ILLUSTRATION
Pump can be submerged if the pump materials of construction
are compatible with the liquid being pumped. The air exhaust
must be piped above the liquid level. When the pumped product
source is at a higher level than the pump (ooded suction
condition), pipe the exhaust higher than the product source to
prevent siphoning spills.
UNIVERSAL ALL AODD
2: INSTAL & OP

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om Model SA1/SA25 • 6
Principle of Pump Operation
Surge Suppressor
Shut-Off Valve
Pressure Gauge
Drain Port
Shut-Off
Valve
Check
Valve
Air Inlet
Discharge
Unregulated Air
Supply to Surge
Suppressor
Pipe Connection
(Style Optional)
Flexible Connector
Flexible
Connector
Vacuum
Gauge
Suction
Shut-Off Valve
Drain Port
Pipe Connection
(Style Optional)
Flexible
Connector
Air Dryer
Filter Regulator
P/N: 020.V107.000
Note: Pipe weight should not be supported
by pump connections.
In an emergency, the
shut-off valve at the air inlet
must be closed This stops
the operation of the pump.
Pmax: 125 psi = 8.6 bar
(Pmax: 100 psi = 7 bar
for non-metallic plastic pumps)
Muffler
(Optional
Piped
Exhaust)
In the event of a diaphragm rupture, pumped fluid can enter the air center section
of the pump and exit through the air exhaust port. When pumping hazardous fluids,
it is recommended to pump the exhaust air to a safe location.
Installation And Start-Up
Locate the pump as close to the product being pumped as possible. Keep the suction line length and number of ttings to a minimum. Do not reduce the suction line
diameter.
Air Supply
Connect the pump air inlet to an air supply with sufcient capacity and pressure to achieve desired performance. A pressure regulating valve should be installed to
insure air supply pressure does not exceed recommended limits.
Air Valve Lubrication
The air distribution system is designed to operate WITHOUT lubrication. This is the standard mode of operation. If lubrication is desired, install an air line lubricator
set to deliver one drop of SAE 10 non-detergent oil for every 20 SCFM (9.4 liters/sec.) of air the pump consumes. Consult the Performance Curve to determine air
consumption.
Air Line Moisture
Water in the compressed air supply may cause icing or freezing of the exhaust air, causing the pump to cycle erratically or stop operating. Water in the air supply can
be reduced by using a point-of-use air dryer.
Air Inlet And Priming
To start the pump, slightly open the air shut-off valve. After the pump primes, the air valve can be opened to increase air ow as desired. If opening the valve
increases cycling rate, but does not increase the rate of ow, cavitation has occurred. The valve should be closed slightly to obtain the most efcient air ow to pump
ow ratio.
Recommended Installation Guide
Available Accessories:
1. Surge Suppressor
2. Filter/Regulator
3. Air Dryer
1
2
3
Note: Surge Suppressor and
Piping must be supported after
the exible connection
CAUTION
The air exhaust should
be piped to an area
for safe disposition
of the product being
pumped, in the event of
a diaphragm failure.
SUBMERGED ILLUSTRATION
UNIVERSAL ALL AODD, EXCEPT FLAP
2: INSTAL & OP

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
7 • Model SA1/SA25
Troubleshooting Guide
For additional troubleshooting tips contact After Sales Support at [email protected] or 419-524-8388
Symptom: Potential Cause(s): Recommendation(s):
Pump Cycles Once Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Air valve or intermediate gaskets installed incorrectly. Install gaskets with holes properly aligned.
Bent or missing actuator plunger. Remove pilot valve and inspect actuator plungers.
Pump Will Not Operate
/ Cycle
Pump is over lubricated. Set lubricator on lowest possible setting or remove. Units are designed for lube free operation.
Lack of air (line size, PSI, CFM). Check the air line size and length, compressor capacity (HP vs. cfm required).
Check air distribution system. Disassemble and inspect main air distribution valve, pilot valve and pilot valve actuators.
Discharge line is blocked or clogged manifolds. Check for inadvertently closed discharge line valves. Clean discharge manifolds/piping.
Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Blocked air exhaust mufer. Remove mufer screen, clean or de-ice, and re-install.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Pump chamber is blocked. Disassemble and inspect wetted chambers. Remove or ush any obstructions.
Pump Cycles and Will
Not Prime or No Flow
Cavitation on suction side. Check suction condition (move pump closer to product).
Check valve obstructed. Valve ball(s) not seating
properly or sticking.
Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Clean out around valve ball cage and valve seat area. Replace valve ball or valve seat if damaged.
Use heavier valve ball material.
Valve ball(s) missing (pushed into chamber or
manifold).
Worn valve ball or valve seat. Worn ngers in valve ball cage (replace part). Check Chemical
Resistance Guide for compatibility.
Valve ball(s) / seat(s) damaged or attacked by product. Check Chemical Resistance Guide for compatibility.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Suction line is blocked. Remove or ush obstruction. Check and clear all suction screens or strainers.
Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Pump Cycles Running
Sluggish / Stalling,
Flow Unsatisfactory
Over lubrication. Set lubricator on lowest possible setting or remove. Units are designed for lube free operation.
Icing. Remove mufer screen, de-ice, and re-install. Install a point of use air drier.
Clogged manifolds. Clean manifolds to allow proper air ow.
Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Cavitation on suction side. Check suction (move pump closer to product).
Lack of air (line size, PSI, CFM). Check the air line size, length, compressor capacity.
Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Air supply pressure or volume exceeds system hd. Decrease inlet air (press. and vol.) to the pump. Pump is cavitating the uid by fast cycling.
Undersized suction line. Meet or exceed pump connections.
Restrictive or undersized air line. Install a larger air line and connection.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Suction line is blocked. Remove or ush obstruction. Check and clear all suction screens or strainers.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Check valve obstructed. Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained air or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs. Purging the chambers of air can be dangerous.
Product Leaking
Through Exhaust
Diaphragm failure, or diaphragm plates loose. Replace diaphragms, check for damage and ensure diaphragm plates are tight.
Diaphragm stretched around center hole or bolt holes. Check for excessive inlet pressure or air pressure. Consult Chemical Resistance Chart for compatibility
with products, cleaners, temperature limitations and lubrication.
Premature Diaphragm
Failure
Cavitation. Enlarge pipe diameter on suction side of pump.
Excessive ooded suction pressure. Move pump closer to product. Raise pump/place pump on top of tank to reduce inlet pressure.
Install Back pressure device (Tech bulletin 41r). Add accumulation tank or pulsation dampener.
Misapplication (chemical/physical incompatibility). Consult Chemical Resistance Chart for compatibility with products, cleaners, temperature limitations
and lubrication.
Incorrect diaphragm plates or plates on backwards,
installed incorrectly or worn.
Check Operating Manual to check for correct part and installation. Ensure outer plates have not been
worn to a sharp edge.
Unbalanced Cycling Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Undersized suction line. Meet or exceed pump connections.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Check valve obstructed. Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained air or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs.
UNIVERSAL ALL SANDPIPER, EXCEPT FLAP
2: INSTAL & OP

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om Model SA1/SA25 • 8
Troubleshooting Guide
Symptom: Potential Cause(s): Recommendation(s):
Pump Cycles Once Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Air valve or intermediate gaskets installed incorrectly. Install gaskets with holes properly aligned.
Bent or missing actuator plunger. Remove pilot valve and inspect actuator plungers.
Pump Will Not Operate
/ Cycle
Pump is over lubricated. Set lubricator on lowest possible setting or remove. Units are designed for lube free operation.
Lack of air (line size, PSI, CFM). Check the air line size and length, compressor capacity (HP vs. cfm required).
Check air distribution system. Disassemble and inspect main air distribution valve, pilot valve and pilot valve actuators.
Discharge line is blocked or clogged manifolds. Check for inadvertently closed discharge line valves. Clean discharge manifolds/piping.
Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Blocked air exhaust mufer. Remove mufer screen, clean or de-ice, and re-install.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Pump chamber is blocked. Disassemble and inspect wetted chambers. Remove or ush any obstructions.
Pump Cycles and Will
Not Prime or No Flow
Cavitation on suction side. Check suction condition (move pump closer to product).
Check valve obstructed. Valve ball(s) not seating
properly or sticking.
Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Clean out around valve ball cage and valve seat area. Replace valve ball or valve seat if damaged.
Use heavier valve ball material.
Valve ball(s) missing (pushed into chamber or
manifold).
Worn valve ball or valve seat. Worn ngers in valve ball cage (replace part). Check Chemical
Resistance Guide for compatibility.
Valve ball(s) / seat(s) damaged or attacked by product. Check Chemical Resistance Guide for compatibility.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Suction line is blocked. Remove or ush obstruction. Check and clear all suction screens or strainers.
Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Pump Cycles Running
Sluggish / Stalling,
Flow Unsatisfactory
Over lubrication. Set lubricator on lowest possible setting or remove. Units are designed for lube free operation.
Icing. Remove mufer screen, de-ice, and re-install. Install a point of use air drier.
Clogged manifolds. Clean manifolds to allow proper air ow.
Deadhead (system pressure meets or exceeds air
supply pressure).
Increase the inlet air pressure to the pump. Pump is designed for 1:1 pressure ratio at zero ow.
(Does not apply to high pressure 2:1 units).
Cavitation on suction side. Check suction (move pump closer to product).
Lack of air (line size, PSI, CFM). Check the air line size, length, compressor capacity.
Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Air supply pressure or volume exceeds system hd. Decrease inlet air (press. and vol.) to the pump. Pump is cavitating the uid by fast cycling.
Undersized suction line. Meet or exceed pump connections.
Restrictive or undersized air line. Install a larger air line and connection.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Suction line is blocked. Remove or ush obstruction. Check and clear all suction screens or strainers.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Check valve obstructed. Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained air or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs. Purging the chambers of air can be dangerous.
Product Leaking
Through Exhaust
Diaphragm failure, or diaphragm plates loose. Replace diaphragms, check for damage and ensure diaphragm plates are tight.
Diaphragm stretched around center hole or bolt holes. Check for excessive inlet pressure or air pressure. Consult Chemical Resistance Chart for compatibility
with products, cleaners, temperature limitations and lubrication.
Premature Diaphragm
Failure
Cavitation. Enlarge pipe diameter on suction side of pump.
Excessive ooded suction pressure. Move pump closer to product. Raise pump/place pump on top of tank to reduce inlet pressure.
Install Back pressure device (Tech bulletin 41r). Add accumulation tank or pulsation dampener.
Misapplication (chemical/physical incompatibility). Consult Chemical Resistance Chart for compatibility with products, cleaners, temperature limitations
and lubrication.
Incorrect diaphragm plates or plates on backwards,
installed incorrectly or worn.
Check Operating Manual to check for correct part and installation. Ensure outer plates have not been
worn to a sharp edge.
Unbalanced Cycling Excessive suction lift. For lifts exceeding 20’ of liquid, lling the chambers with liquid will prime the pump in most cases.
Undersized suction line. Meet or exceed pump connections.
Pumped uid in air exhaust mufer. Disassemble pump chambers. Inspect for diaphragm rupture or loose diaphragm plate assembly.
Suction side air leakage or air in product. Visually inspect all suction-side gaskets and pipe connections.
Check valve obstructed. Disassemble the wet end of the pump and manually dislodge obstruction in the check valve pocket.
Check valve and/or seat is worn or needs adjusting. Inspect check valves and seats for wear and proper setting. Replace if necessary.
Entrained air or vapor lock in chamber(s). Purge chambers through tapped chamber vent plugs.
Composite Repair Parts Drawing
Service & Repair Kits
475.283.000 Air End Conversion Kit
(Converts from a Conductive Polypropylene Air
Valve Assembly to the Die Cast Aluminun Air Valve
Assembly) Valve Body Assembly, Gaskets, and
Longer Capscrews
476.311.000 Air End Kit
Sleeve and Spool Set, Pilot Valve Body Assembly,
Bumpers, Bushings, Gaskets, O-rings, Seals,
Plungers, and Retaining Rings
476.341.000 Air End Refurbishment Kit
(With new die cast aluminum air valve body)
Bumpers, Bushings, Gaskets, O-rings, Seals,
Plungers, and Retaining Rings
476.313.000 Air End Refurbishment Kit
(For cast iron centers with conductive
polypropylene air valve body)
Bumpers, Bushings, Gaskets, O-rings, Seals,
Plungers, and Retaining Rings
476.033.360 Wet End Kit
Nitrile Diaphragms, Nitrile Flap Valves Conductive
PTFE and Fabric Gaskets
476.033.363 Wet End Kit
FKM Diaphragms, FKM Flap Valves Conductive
PTFE and PTFE Gaskets
476.033.364 Wet End Kit
EPDM Diaphragms, EPDM Flap Valves Conductive
PTFE and PTFE Gaskets
476.033.365 Wet End Kit
Neoprene Diaphragms, EPDM Flap Valves
Conductive Neoprene and Fabric Gaskets
13
14
27
30
2
18
48
31
45
51
6
36 19
23
42
8
38
29
1
26
25
41
35
34 10
5
33
52
31
11
52
17
38
4
3
9
50
43
7
40
37
39
22
44
23
28
21
20
48
47
31
24
46
21
53
15
12
32
55
29
5
11
49
4
2
45
17
40
7
34
8
42
43
CAST IRON MID-SECTION
ASSEMBLY CONFIGURATION
35
18
25
3
26
1
27
9
50
14
52
13
30
54
29
51
6
36
MODEL SPECIFIC
3: EXP VIEW

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
9 • Model SA1/SA25
Composite Repair Parts List
Item Part Number Description Qty
1 031.030.557 Assembly, air valve
(cast iron centers only) 1
031.203.000 Assembly, air valve
2 070.012.170 Bearing, sleeve 2
3 095.074.001 Pilot valve assembly 1
4 114.007.157 Bracket, intermediate 1
114.012.010 Bracket, intermediate
(cast iron centers only) 1
5 115.070.330 Bracket, mounting (top porting only) 1
115.071.330 Bracket, mounting
(bottom porting only) 1
6 132.019.360 Bumper 2
7 132.022.360 Bumper, actuator 2
8 135.034.506 Bushing, plunger 2
9 165.134.157 Assembly, air inlet cap 1
165.134.558 Assembly, air inlet cap
(cast iron centers only) 1
10 170.029.330 Capscrew, hex head 5/16-18 x 1.50 16
11 170.006.330 Capscrew, hex head 5/16-18 x .88
(Cast iron centers) 6
170.032.330 Capscrew, hex head 1/4-20 x 1.00 6
12 170.045.330 Capscrew, hex head 5/16-18 x 1.25 4
13 170.063.330 Capscrew, hex head 1/4-20 x 1.75 1
14 170.033.330 Capscrew, hex head 3/8-16 x 3.25
(Cast iron centers) 4
170.083.330 Capscrew, hex head 3/8-16 x 3.75 4
15 171.010.330 Capscrew, hex ange 3/8-16 x 1.75 4
16 196.012.110 Chamber, outer 2
196.012.157 Chamber, outer 2
17 196.042.157 Chamber, inner 1
196.090.010 Chamber, inner (cast iron centers only) 1
18 196.043.157 Chamber, inner 1
196.084.010 Chamber, inner (cast iron centers only) 1
19 286.008.354 Diaphragm (santoprene) 2
286.008.356 Diaphragm (hytrel) 2
286.008.360 Diaphragm (nitrile) 2
286.008.363 Diaphragm (fkm) 2
286.008.364 Diaphragm (epdm) 2
286.008.365 Diaphragm (neoprene) 2
20 334.013.110 Flange, porting (1" npt) 2
334.013.110 E ange, porting (1" bsp tapered) 2
334.013.157 Flange, porting (1" npt) 2
334.013.157 E ange, porting (1" bsp tapered) 2
334.036.110 Flange, dual porting (1" npt) 2
334.036.110 E ange, dual porting (1" bsp tapered) 2
334.036.156 Flange, dual porting (1" npt) 2
334.036.156 E ange, dual porting (1" bsp tapered) 2
21 338.007.360 Valve, ap (nitrile) 2
338.007.363 Valve, ap (fkm) 2
338.007.364 Valve, ap (epdm) 2
338.007.365 Valve, ap (neoprene) 2
22 350.002.360 Foot, rubber 4
23 360.030.425 Gasket, manifold 2
360.030.600 Gasket, manifold 2
24 360.031.379 Gasket, ange (conductive nitrile) 2
360.031.384 Gasket, ange (conductive neoprene) 2
360.031.608 Gasket, ange (conductive ptfe) 2
Item Part Number Description Qty
25 360.056.379 Gasket, pilot valve (conductive nitrile) 1
26 360.057.360 Gasket, air valve body (nitrile) 1
27 360.058.360 Gasket, air inlet (nitrile) 1
28 518.015.110 Manifold 1
518.015.156 Manifold 1
29 530.036.000 Mufer 1
30 542.001.330 Nut, square 1/4-20 1
31 545.004.330 Nut, hex 5/16-18 32
32 545.005.330 Nut, hex 3/8-16 4
33 547.002.330 Nut, stop 4
34 560.001.360 O-ring 2
35 560.040.360 O-ring 2
36 612.022.330 Plate, inner diaphragm 2
37 612.101.110 Assembly, outer diaphragm plate 2
612.108.157 Assembly, outer diaphragm plate 2
38 618.003.330 Plug, pipe 1/4 npt 3
39 618.003.110 Plug, pipe 1/4 npt
(used in outer chambers) 2
618.003.330 Plug, pipe 1/4 npt
(used in outer chambers) 2
40 620.007.114 Plunger, actuator 2
41 675.040.360 Ring, sealing
(not used on cast iron centers) 2
42 675.042.115 Ring, retaining 2
43 685.039.120 Rod, diaphragm 1
44 706.013.330 Screw, machine 4
45 720.010.375 Seal, u-cup 2
46 722.021.360 Seat, ap valve (nitrile) 2
722.021.363 Seat, ap valve (fkm) 2
722.021.364 Seat, ap valve (epdm) 2
722.021.365 Seat, ap valve (neoprene) 2
47 807.029.330 Stud 5/16-18 12
48 900.004.330 Washer, lock 5/16 16
49 900.005.330 Washer, lock 3/8 6
50 901.005.330 Washer, at 3/8 4
51 901.012.180 Washer, copper sealing 2
52 901.035.330 Washer, at 1/4 7
901.035.330 Washer, at 1/4
(cast iron centers only) 1
53 905.001.015 Washer, taper 4
54 255.012.335 Coupling, pipe 1" npt
(Polypropylene air valve only) 1
55 312.017.335 Elbow, 90 degree
(top ported option cast iron only) 1
312.123.162 Elbow, 90 3/4 npt
(top ported option only) 1
ATEX Compliant
LEGEND:
= Items contained within Air End Kits
= Items contianed within Wet End Kits
Note: Kits contain components specic to the material codes.
MODEL SPECIFIC
3: EXP VIEW

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om Model SA1/SA25 • 10
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.....Unlled Polypropylene
555.....Polyvinyl Chloride
556.....Black Vinyl
557.....Conductive Polypropylene
558.....Conductive HDPE
570.....Rulon II®
580.....Ryton®
600.....PTFE (virgin material)
Tetrauorocarbon (TFE)
603.....Blue Gylon®
604.....PTFE
606.....PTFE
607.....Envelon
608.....Conductive PTFE
610.....PTFE Encapsulated Silicon
611 .....PTFE Encapsulated FKM
632.....Neoprene/Hytrel®
633.....FKM/PTFE
634.....EPDM/PTFE
635.....Neoprene/PTFE
637.....PTFE, FKM/PTFE
638.....PTFE, Hytrel®/PTFE
639.....Nitrile/TFE
643.....Santoprene®/EPDM
644.....Santoprene®/PTFE
656.....Santoprene®Diaphragm and
Check Balls/EPDM Seats
661.....EPDM/Santoprene®
666.....FDA Nitrile Diaphragm,
PTFE Overlay, Balls, and Seals
668.....PTFE, FDA Santoprene®/PTFE
• Delrin and Hytrel are registered
tradenames of E.I. DuPont.
• Nylatron is a registered tradename
of 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

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
11 • Model SA1/SA25
1B
1A
1C
1F
1D
1E
1C
1F
1D
1E
1F
1A
1D
1C
1E
1D
1B
1D
1C
1E
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.
Air Distribution Valve Assembly
With Aluminum Center
Main Air Valve Assembly Parts List
Item Item Number Description Qty
1 031.203.000 Assembly, Main Air Valve 1
1A 031.039.000 Sleeve & Spool Set 1
1B 095.113.157 Body, Valve 1
1C 132.037.357 Bumper 2
1D 165.129.157 Cap, End 2
1E 170.032.330 1/4-20 X 3/4 Capscrew 8
1F 560.058.360 7/8 ID X 1/16 CS O-Ring 8
Air Distribution Valve Servicing
See repair parts drawing, remove screws.
Step 1: Remove hex capscrews (1E).
Step 2: Remove end cap (1D).
Step 3: Remove spool part of (1A) (caution: do not scratch).
Step 4: Press sleeve (1A) from body (1B).
Step 5: Inspect bumpers (1C) and o-rings (1F).
Step 6: Lightly lubricate O-Rings (1F) on sleeve (1A).
Step 7: Press sleeve (1A) into body (1B).
Step 8: Reassemble in reverse order, starting with step 3.
Note: Sleeve and spool (1A) set is match ground to a specied clearance
sleeve and spools (1A) cannot be interchanged.
ATEX Compliant
LEGEND:
= Items contained within Air End Kits
4: AIR END

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om Model SA1/SA25 • 12
Main Air Valve Assembly Parts List
Item Item Number Description Qty
1 031.203.000 Assembly, Main Air Valve 1
1A 031.039.000 Sleeve & Spool Set 1
1B 095.113.157 Body, Valve 1
1C 132.037.357 Bumper 2
1D 165.129.157 Cap, End 2
1E 170.032.330 1/4-20 X 3/4 Capscrew 8
1F 560.058.360 7/8 ID X 1/16 CS O-Ring 8
LEGEND:
= Items contained within Air End Kits
ATEX Compliant
Main Air Valve Assembly Parts List
Item Part Number Description Qty
1 031.030.557 Assembly, Main Air Valve 1
1A 031.039.000 Sleeve and Spool set 1
1B 095.051.557 Body, Air Valve 1
1C 165.038.558 Cap, End 2
1D 560.058.360 O-ring 8
1E 675.043.115 Ring, Retaining 2
Air Distribution Valve Servicing
See repair parts drawing, remove screws.
Step 1: Remove end cap retainer (1E).
Step 2: Remove end cap (1C).
Step 3: Remove spool part of (1A) (caution, do not scratch).
Step 4: Press sleeve (1A) from body (1B).
Step 5: Inspect O-Ring (1D) and replace if necessary.
Step 6: Lightly lubricate O-Rings (1D) on spool (1A).
Step 7: Press sleeve (1A) into body (1B).
Step 8: Reassemble in reverse order.
Note: Sleeve and spool (1A) set is match ground to a specied clearance
sleeve and spools (1A) cannot be interchanged.
1B
1A
1C
1F
1D
1E
1C
1F
1D
1E
1F
1A
1D
1C
1E
1D
1B
1D
1C
1E
Air Distribution Valve Assembly
With Cast Iron Center
LEGEND:
= Items contained within Air End Kits
MODEL SPECIFIC
4: AIR END

sa1dl5sm-rev0217
sa ndp ipe rpu mp.c om
13 • Model SA1/SA25
Pilot Valve Assembly
ATEX Compliant
PILOT VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
3 095.074.001 Pilot Valve Assembly 1
3A 095.071.557 Pilot Valve Body 1
3B 755.025.162 Pilot Valve sleeve 1
3C 560.033.360 O-Ring 4
3D 775.014.115 Pilot Valve Spool 1
3E 560.023.360 O-Ring 4
3F 675.037.050 Retaining Ring 1
Pilot Valve Servicing
With Pilot Valve removed from pump.
Step 1: Remove snap ring (3F).
Step 2: Remove sleeve (3B), inspect O-Rings (3C),
replace if required.
Step 3: Remove spool (3D) from sleeve (3B),
inspect O-Rings (3E), replace if required.
Step 4: Lightly lubricate O-Rings (3C) and (3E).
Reassemble in reverse order.
3F
3A
3D
3B
3C
3E
LEGEND:
= Items contained within Air End Kits
MODEL SPECIFIC
4: AIR END

sa1dl5sm-rev0217
www.sa ndp ipe rpu mp.c om Model SA1/SA25 • 14
Pilot Valve Assembly
LEGEND:
= Items contained within Air End Kits
Step 1: 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.
Step 1.A: NOTE: Not all inner diaphragm plates
are threaded. Some models utilize a through hole
in the inner diaphragm plate. If required to separate
diaphragm assembly, place assembly in a vise,
gripping on the exterior cast diameter of the inner
plate. Turn the outer plate clockwise to separate the
assembly.
Always inspect diaphragms for wear cracks or
chemical attack. Inspect inner and outer plates for
deformities, rust scale and wear. Inspect intermediate
bearings for elongation and wear. Inspect diaphragm
rod for wear or marks.
Clean or repair if appropriate. Replace as required.
Step 2: Reassembly: There are two different types
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.
Step 3: 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.
Step 4: Push the threaded outer diaphragm
plate through the center hole of the diaphragm.
Note: Most diaphragms are installed with the
natural bulge out towards the fluid side. S05,
S07, and S10 non–metallic units are installed
with the natural bulge in towards the air side.
Step 5: Thread or place, outer plate stud into
the inner plate. For threaded inner plates, use a
torque wrench to tighten the assembly together.
Torque values are called out on the exploded view.
Repeat procedure for second side assembly.
Allow a minimum of 15 minutes to elapse after
torquing, then re-torque the assembly to compensate
for stress relaxation in the clamped assembly.
Step 6: Thread one assembly onto the diaphragm
rod with sealing washer (when used) and bumper.
Step 7: Install diaphragm rod assembly
into pump and secure by installing the outer
chamber in place and tightening the capscrews.
Step 8: On opposite side of pump, thread the
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.
Diaphragm Servicing
IMPORTANT
Read these instructions completely,
before installation and start-up.
It is the responsibility of the
purchaser to retain this manual for
reference. Failure to comply with
the recommendations stated in this
manual will damage the pump, and
void factory warranty.
UNIVERSAL ALL SP
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
Revision Level: F
Title
Director of Engineering
October 20, 2005
Date of revision
February 27, 2017
Manufacturer: Warren Rupp, Inc., 800 N. Main Street
Mansfield, Ohio, 44902 USA
Certifies that Air-Operated Double Diaphragm Pump Series: HDB, HDF, M Non-Metallic,
S Non-Metallic, M Metallic, S Metallic, T Series, G Series, U Series, EH and SH High Pressure,
RS Series, W Series, SMA and SPA Submersibles, and Tranquilizer®Surge Suppressors comply with
the European Community Directive 2006/42/EC on Machinery, according to Annex VIII.
This product has used Harmonized Standard EN809:1998+A1:2009, Pumps and Pump Units
for Liquids - Common Safety Requirements, to verify conformance.
5 - YEAR Limited Product Warranty
Warren Rupp, Inc. (“Warren Rupp”) warrants to the original end-use purchaser that no product sold by Warren Rupp that
bears a Warren Rupp brand shall fail under normal use and service due to a defect in material or workmanship within five
years from the date of shipment from Warren Rupp’s factory. Warren Rupp brands include Warren Rupp®,SANDPIPER®,
SANDPIPER Signature SeriesTM, MARATHON®, Porta-Pump®, SludgeMaster™ and Tranquilizer®.
The use of non-OEM replacement parts will void (or negate) agency certifications, including CE, ATEX, CSA, 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

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