SANDPIPER S20 User Manual

SERVICE & OPERATING MANUAL

Original Instructions

Certied Quality

Quality System

ISO 9001 Certied

Environmental Management System

ISO 14001 Certied

1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY

Model S20

Metallic
Design Level 1

Warren Rupp, Inc.

A Unit of IDEX Corporation

800 N. Main St.,

Manseld, Ohio 44902 USA

Telephone [phone]

Fax [phone]

SANDPIPERPUMP.COM

© Copyright 2014 Warren Rupp, Inc.

All rights reserved

sa nd pi pe rp um p. co m

Safety Information

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 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.

CAUTION

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.

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.

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.

WARNING

When used for toxic or aggressive uids, the pump should
always be ushed clean prior to disassembly.

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.

Airborne particles and loud noise hazards. Wear eye and ear
protection.

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.

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.

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.

kg

Use safe practices when lifting

Grounding the Pump

To be fully groundable, the pumps must be ATEX Compliant. Refer to the nomenclature page for ordering information.

Optional 8 foot long (244 centimeters) Ground Strap is available for easy ground connection.

To reduce the risk of static electrical sparking, this pump must be grounded. Check the local
electrical code for detailed grounding instruction and the type of equipment required.

Refer to nomenclature page for ordering information.

WARNING

Take action to prevent static sparking.

Fire or explosion can result, especially
when handling ammable liquids. The
pump, piping, valves, containers or

other miscellaneous equipment must
be grounded.

Model S20 Metallic

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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

1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY

SECTION 4: AIR END .......................................11

• Air Distribution Valve Assembly

• Air Valve with Stroke Indicator Assembly

• Pilot Valve Assembly

• Intermediate Assembly

SECTION 5: WET END .....................................17

• Diaphragm Drawings

• Diaphragm Servicing

SECTION 6: OPTIONAL CONFIGURATIONS ....19

• Solenoid Shifted Air Valve

SECTION 7: WARRANTY & CERTIFICATES ....20

• Warranty

• CE Declaration of Conformity - Machinery

• ATEX Declaration of Conformity

• ATEX Summary of Markings

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s20mdl1sm-rev0614

Model S20 Metallic

Explanation of Pump Nomenclature

II 2GD T5

II 2G Ex ia c IIC T5
II 2D c iaD 20 IP67 T100˚C

II 2G EEx m c T5
II 2D c IP65 T100°C

Your Model #:

S

__ ____ __ __ __ __ __ __ __ __ __ ____

(ll in from pump
nameplate)

1: PUMP SPECS

Pump Pump Check Design Wetted Diaphragm/
Brand Size Valve Level Material

Model #:

S XX X X X X X X X X X XX

Pump Brand

S SANDPIPER

®

Pump Size

20 2"

Check Valve Type

B Ball
W Weighted

Design Level

1 Design Level

Wetted Material

A Aluminum
I Cast Iron
S Stainless Steel
H Alloy C
X Unpainted Aluminum

Diaphragm/Check Valve Materials

1 Santoprene/Santoprene
2 PTFE-Santoprene/PTFE
B Nitrile/Nitrile
C FKM/PTFE
E EPDM/EPDM
I EPDM/Santoprene
G PTFE-Neoprene/PTFE
M Santoprene/PTFE
N Neoprene/Neoprene
Z One-Piece Bonded/PTFE

Check Valve Seat

A Aluminum
B Nitrile
C CarbonSteel
E EPDM
N Neoprene
S Stainless Steel
T PTFE
V FKM
W UHMW Polyethylene

Non-Wetted Material Options

A Painted Aluminum
I Cast Iron
J Painted Aluminum w/PTFE

Coated Hardware
S Stainless Steel with
Stainless Steel Hardware
Y Painted Aluminum with
Stainless Steel Hardware
Z Cast Iron with
Stainless Steel Hardware

Porting Options

N NPT Threads
B BSP (Tapered) Threads
R Raised Face 150#

Threaded ANSI Flange
W Welded Raised Face #150 ANSI Flanged Manifolds

Pump Style

S Standard

Pump Options

0 None
1 SoundDampeningMufer
2 MeshMufer
3 High temperature Air Valve with

 IntegralMufer

4 High temperature Air Valve with

 SoundDampeningMufer

5 High temperature Air Valve

 withMeshMufer

6 MetalMufer
7

Check Valve

Metal Muferw/GroundingCable

Check Valve Non-Wetted

Seat Material Options Style Options Options

Porting Pump Pump Kit

Kit Options

00. None
P0. 10.30VDC Pulse Output Kit
P1. Intrinsically-Safe 5.30VDC,

110/120VAC 220/240 VAC
Pulse Output Kit
P2. 110/120 or 220/240VAC
Pulse Output Kit

E0. Solenoid Kit with 24VDC Coil
E1. Solenoid Kit with 24VDC

Explosion-Proof Coil

E2. Solenoid Kit with 24VAC/12VDC Coil
E3. Solenoid Kit with 12VDC

Explosion-Proof Coil

E4. Solenoid Kit with 110VAC Coil
E5. Solenoid Kit with 110VAC

Explosion-Proof Coil

E6. Solenoid Kit with 220VAC Coil
E7. Solenoid Kit with 220VAC

Explosion-Proof Coil
E8. Solenoid Kit with 110VAC, 50 Hz
Explosion-Proof Coil
E9. Solenoid Kit with 230VAC, 50 Hz
Explosion-Proof Coil

S P. Stroke Indicator Pins

A1. Solenoid Kit with 12 VDC

ATEX Compliant Coil
A2. Solenoid Kit with 24 VDC
ATEX Compliant Coil
A3. Solenoid Kit with 110/120 VAC
50/60 Hz ATEX Compliant Coil
A4. Solenoid Kit with 220/240 VAC
50/60 Hz ATEX Compliant Coil

Your Serial #: (ll in from pump nameplate) _____________________________________

ATEX Detail

(1)

(2)

1 • Model S20 Metallic

II1GcT5
II3/1GcT5

II 1D c T100°C
I M1 c
I M2 c

II2GcT5
II3/2GcT5

II 2D c T100°C

II2GExiacIICT5
II3/2GExiacIICT5

II 2D Ex c ia 20 IP67 T100°C

Note: Pumps ordered with the options listed in (1) to the left are ATEX
compliant when ordered with kit option P1.

Models equipped with Wetted Options I, S or H,
Non-Wetted Options I, S or Z, Pump Options 6 or 7,
and Kit Option 0.
Note: See ATEX Explanation of

EC-Type Certicate

Models equipped with Wetted Options A, I, S, or H,
Non-Wetted Options A, I,Y, or Z, Pump Options 6 or 7,
and Kit Option 0.
Note: See ATEX Explanation of Type

Examination Certicate

(3)

II2GEExmcIIT5
II3/22GEExmcIIT5

II 2D c IP65 T100°C

Note: Pumps ordered with the options listed in (1) to the left are ATEX
compliant when ordered with kit option A1, A2, A3, or A4. Compressed
Air Temperature Range: Maximum Ambient Temperature to plus 50°C.

*Note: See page 18 for Special Conditions For Safe Use.

(4)

IEC EEX m T4

Note: Pump models equipped with these explosion-proof solenoid kit options

E1, E3, E5, E7, E8 or E9, are certied and approved by the above agencies.

They are NOT ATEX compliant.

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Performance

S20 METALLIC

SUCTION/DISCHARGE PORT SIZE

• 2" NPT (internal)

• 2" BSP Tapered (internal)

• 2" ANSI 150# Raised Face Flanged

CAPACITY

• 0 to 150 gallons per minute
(0 to 567 liters per minute)

AIR DISTRIBUTION VALVE

• No-lube, no-stall design

SOLIDS-HANDLING

• Up to .25 in. (6mm)

HEADS UP TO

• 125 psi or 289 ft. of water
(8.6 Kg/cm

DISPLACEMENT/STROKE

• .42 Gallon / .1.59 liter

MAXIMUM OPERATING PRESSURE

• 125 psi (8.6 bar)

SHIPPING WEIGHT

• Aluminum 69 lbs. (31kg)

• Cast Iron 129 lbs. (59kg)

• Stainless Steel 114 lbs. (52kg)

2

or 86 meters)

BAR

7

6

5

4

HEAD

3

2

1

0

Performance based on the following: elastomer fitted pump, flooded suction, water at ambient conditions.

PSI

20 (34)

100

100 PSI

90

80

80 PSI

70

60

60 PSI (4.08 Bar)

50

40

40 PSI (2.72 Bar)

30

20

20 PSI (1.36 Bar)

10

0

0 20 40 60 80 100 120 140 160

The use of other materials and varying hydraulic conditions may result in deviations in excess of 5%.

40 (68)

(6.8 Bar)

60 (102)

(5.44 Bar)

Air Inlet Pressure

MODEL S20 Metallic Performance Curve

80 (136)

100 (170)

U.S. Gallons per minute

Liters per minute

CAPACITY

1: PUMP SPECS

NPSHR

METERS

FEET

9.1

30

7.6

25

6

20

4.5

15

3

10

1.5

5

600500400300200100

Materials

Material Prole:

CAUTION! Operating temperature limitations are as follows:

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.

EPDM: Shows very good water and chemical resistance. Has
poor resistance to oils and solvents, but is fair in ketones and
alcohols.

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.

Hytrel®: Good on acids, bases, amines and glycols at room
temperatures only.

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.

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.

Nylon: 6/6 High strength and toughness over a wide
temperature range. Moderate to good resistance to fuels, oils
and chemicals.

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.

Operating

Temperatures:

Max. Min.

190°F

88°C

280°F

138°C

350°F
177°C

220°F
104°C

200°F

93°C

190°F

88°C

180°F

82°C

-20°F

-29°C

-40°F

-40°C

-40°F

-40°C

-20°F

-29°C

-10°F

-23°C

-10°F

-23°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.

PVDF: (Polyvinylidene Fluoride) A durable uoroplastic with

excellent chemical resistance. Excellent for UV applications.
High tensile strength and impact resistance.

Santoprene®: Injection molded thermoplastic elastomer with

no fabric layer. Long mechanical ex life. Excellent abrasion

resistance.

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.

Urethane: Shows good resistance to abrasives. Has poor
resistance to most solvents and oils.

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.

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.

180°F

82°C

250°F
121°C

275°F
135°C

180°F

82°C

150°F

66°C

220°F
104°C

32°F

0°C

0°F

-18°C

-40°F

-40°C

-35°F

-37°C

32°F

0°C

-35°F

-37°C

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s20mdl1sm-rev0614

Model S20 Metallic • 2

Dimensional Drawings

S20 Metallic

Dimensions in inches (mm dimensions in brackets). Dimensional Tolerance:±1/8" (± 3mm)

The dimensions on this drawing are for reference only. A certied drawing can be requested if physical dimensions are needed.

1: PUMP SPECS

16.88

428.67

1" AIR EXHAUST PORT

26.47

672.31

24.90

632.56

13.85

351.77

2" NPT SUCTION PORT

11.63

295.28

2.24

56.84

2" NPT DISCHARGE PORT

24.90

632.56

10.00
254

3/4" NPT AIR INLET

2.19

55.63

6.12

155.55

12.25

311.15

10.06

255.59

BOTTOM VIEW

2.25

2.00

9.00

228.60

50.80

R.25

6.35

5.00
127

57.15

10.00
254

3 • Model S20 Metallic

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s20mdl1sm-rev0614

Dimensional Drawings

26.38

670.13

11.63

295.28

4.87

123.70

5.82

147.95

.67

17.07

2.00

50.80

25.04

635.97

4.00

101.60

2.00

50.80

4.99

126.69

10.00
254

2" RF 150# ANSI FLANGE
DISCHARGE PORT

2" RF 150# ANSI FLANGE,

SUCTION PORT

16.93

430.08

24.88

632.03

27.88

708.23

2.19

55.56

13.06

331.72

29.82

757.50

2.00

50.80

3.00

76.20

4X

.75

19.05

HOLES

1" NPT EXHAUST PORT

26.38

670.13

11.63

295.28

4.87

123.70

5.82

147.95

.67

17.07

2.00

50.80

25.04

635.97

16.00

406.40

7.99

202.89

4.00

101.60

2.00

50.80

4.99

126.69

10.00
254

2" RF 150# ANSI FLANGE
DISCHARGE PORT

2" RF 150# ANSI FLANGE,

SUCTION PORT

S20 Metallic

Dimensions in inches (mm dimensions in brackets). Dimensional Tolerance:±1/8" (± 3mm)

The dimensions on this drawing are for reference only. A certied drawing can be requested if physical dimensions are needed.

16.93

430.08

29.82

757.50

2.00

50.80

24.88

27.88

632.03

1" NPT EXHAUST PORT

2.19

55.56

3.00

13.06

4X

.75

19.05

HOLES

331.72

10.06

255.52

76.20

.50

MOUNTING HOLES

12.70

R.25

6.35

708.23

26.38

670.13

4.00

101.60

2" RF 150# ANSI FLANGE,

SUCTION PORT

2.00

50.80

7.99

202.89

4.99

126.69

295.28

16.00

406.40

11.63

4.87

123.70

10.00
254

5.82

147.95

2" RF 150# ANSI FLANGE
DISCHARGE PORT

25.04

635.97

.67

17.07

2.00

50.80

1: PUMP SPECS

13.00

16.00

406.40

330.20

9.00

228.60

BOTTOM VIEW

AIR INLET
3/4" NPT

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s20mdl1sm-rev0614

4.50

114.28

8.00

203.18

Model S20 Metallic • 4

Principle of Pump Operation

SAFE AIR
EXHAUST
DISPOSAL
AREA

MUFFLER

Air-Operated Double Diaphragm (AODD) pumps are powered
by compressed air or nitrogen.

2: INSTAL & OP

Discharge

Stroke

Air Line

Discharged

Fluid

Suction

Stroke

The main directional (air) control valve
compressed air to an air chamber, exerting uniform pressure
over the inner surface of the diaphragm
the exhausting air
is directed through the air valve assembly(s) to an exhaust
port

.

④

As inner chamber pressure
pressure
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)

The pump primes as a result of the suction stroke. The
suction stroke lowers the chamber pressure
the chamber volume. This results in a pressure differential
necessary for atmospheric pressure
through the suction piping and across the suction side check

valve and into the outer uid chamber

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.

(P2), the rod

from behind the opposite diaphragm

③

(P1) exceeds liquid chamber

connected diaphragms shift

⑤

distributes

①

. At the same time,

②

orientation.

⑥

(P3) increasing

(P4) to push the uid

.

⑦

5 • Model S20 Metallic

Primed

Fluid

SUBMERGED ILLUSTRATION

MUFFLER

LIQUID
LEVEL

SUCTION

LINE

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.

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1" DIAMETER AIR
EXHAUST PIPING