SANDPIPER M20 User Manual

SERVICE & OPERATING MANUAL

See page 2
for ATEX ratings.

Original Instructions

Model M20 Non-Metallic Design Level 3

Table of Contents

Engineering Data and Temperature Limitations ....................................................................... 1

Explanation of Pump Nomenclature ......................................................................................... 2

Performance Curve, Model M20 Non-Metallic Design Level 3 ................................................. 3

Dimensions: M20 Non-Metallic ................................................................................................. 4

Dimensions: M20 Non-Metallic with Spill Containment ............................................................. 5

Principle of Pump Operation..................................................................................................... 6

Installation and Start-up............................................................................................................ 6

Air Supply ................................................................................................................................. 6

Air Valve Lubrication ................................................................................................................. 6

Air Line Moisture....................................................................................................................... 6

Air Inlet and Priming ................................................................................................................. 6

Between Uses .......................................................................................................................... 6

Installation Guide ...................................................................................................................... 7

Recycling .................................................................................................................................. 8

Important Safety Information .................................................................................................... 8

Material Codes ......................................................................................................................... 9

Troubleshooting ...................................................................................................................... 10

Warranty ................................................................................................................................. 10

Composite Repair Parts Drawing ........................................................................................... 12

Repair Parts Servicing Kits ..................................................................................................... 12

Composite Repair Parts List ................................................................................................... 13

Spill Containment Option ....................................................................................................... 14

Spill Containment Repair Parts List ........................................................................................ 14

Spill Containment Concept ..................................................................................................... 14

Spill Containment Option Diaphragm Servicing .................................................................... 15

Filling Chambers with Liquid................................................................................................... 15

Air Distribution Valve Assembly Drawing ................................................................................ 16

Main Air Valve Assembly Parts List ........................................................................................ 16

Air Distribution Valve Servicing ............................................................................................... 17

Air Distribution Valve with Stroke Indicator Options ............................................................... 18

Air Distribution Valve with Stroke Indicator Parts List ............................................................ 18

Air Distribution Valve with Stroke Indicator Servicing ............................................................. 19

See pages 2, 33 and 34
for ATEX ratings.

Solenoid Shifted Air Valve Drawing ........................................................................................ 20

Solenoid Shifted Air Valve Parts List ...................................................................................... 20

Solenoid Shifted Air Distribution Valve option ......................................................................... 21

Diaphragm Service Drawing, Non-Overlay............................................................................. 22

Diaphragm Service Drawing, with Overlay ............................................................................. 22

Diaphragm Servicing .............................................................................................................. 23

Overlay Diaphragm Service ................................................................................................... 23

Pilot Valve Assembly Drawing ................................................................................................ 24

Pilot Valve Assembly Parts List .............................................................................................. 24

Pilot Valve Servicing ............................................................................................................... 24

Pumping Hazardous Liquids................................................................................................... 25

Converting the Pump for Piping the Exhaust Air .................................................................... 25

Exhaust Conversion Drawing ................................................................................................. 25

Converted Exhaust Illustration................................................................................................ 25

Modular Check Valve Servicing .............................................................................................. 26

Modular Check Valve Drawing ............................................................................................... 26

Dual Port Option Drawing ....................................................................................................... 27

Dual Porting Options .............................................................................................................. 27

Dual Porting of Both Suction and Discharge Ends of the Pump............................................. 27

Single Porting of the Suction and Dual Porting of the Pump Discharge ................................. 27

Dual Porting of the Suction and Single Porting of the Pump Discharge ................................. 27

Leak Detection Options Drawing ............................................................................................ 28

Electronic Leak Detector Installation ...................................................................................... 28

Mechanical Leak Detector Installation .................................................................................... 28

Pulse Output Kit Drawing ....................................................................................................... 29

Pulse Output Kit Option .......................................................................................................... 29

Optional Mufer Congurations .............................................................................................. 30

Grounding the Pump .............................................................................................................. 31

CE Declaration of Conformity Machinery ............................................................................... 32

CE Declaration of Conformity ATEX ....................................................................................... 33

Explanation of ATEX Certications ......................................................................................... 34

m20nmdl3sm-rev0713

Warren Rupp, Inc. • A Unit of IDEX Corporation • 800 N. Main St., Manseld, Ohio 44902 USA

Telephone [phone] • Fax [phone] • www.warrenrupp.com

©Copyright 2013 Warren Rupp, Inc. All rights reserved.

Quality System

See page 2
for ATEX ratings.

ISO9001 Certied

Environmental

Management System

ISO14001 Certied

See pages 2, 33 and 34
for ATEX ratings.

M20 Non-Metallic

Ball Valve

Design Level 3

Air Operated
Double Diaphragm Pump

ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA

INTAKE/DISCHARGE PIPE SIZE

2" Universal Flange

(Fits ANSI & DIN Flange)

CAPACITY

0 -160 US Gallons per minute

(0 - 605 liters per minute)

AIR VALVE

No-lube, no-stall

design

SOLIDS-HANDLING

Up to .66 in. (17mm)

HEADS UP TO

100 psi or 231 ft. of water

(7 bar or 70 meters)

DISPLACEMENT/STROKE

.46 US gallons (1.73 liter)

CAUTION! Operating temperature limitations are as follows:

Operating Temperatures

Materials Maximum* Minimum*

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.

PVDF A durable uoroplastic with excellent chemical resistance. Excellent for UV applications. High tensile strength and impact resistance.

NEOPRENE All purpose. Resistant to vegetable oils. Generally not affected by moderate chemicals, fats, greases and many oils and solvents. Generally

attacked by strong oxidizing acids, ketones, esters, nitro hydrocarbons and chlorinated aromatic hydrocarbons.

PTFE Chemically inert, virtually impervious. Very few chemicals are known to react chemically 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.

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) will attack FKM.

®

Santoprene

Polypropylene A thermoplastic polymer. Moderate tensile and ex strenght. Resists strong acids and alkalie. Attacked by chlorine, fuming nitric acid and

other strong oxidizing agents.

For specic applications, always consult the Warren Rupp “Chemical Resistance Chart”

CAUTION: 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.

Injection molded thermoplastic elastomer with no fabric layer. Long mechanical ex life. Excellent abrasion resistance.

190°F -10°F
88°C -23°C

250°F 0°F
121°C -18°C

200°F -10°F
93°C -23°C

220°F -35°F
104°C -37°C

350°F -40°F
177°C -40°C

275°F -40°F
135°C -40°C

180°F 32°F
82°C 0°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.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 1

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

M20 Non-Metallic · Design Level 3 · Ball Valve

Check Diaphragm/ Check Non-Wetted Shipping
Model Pump Pump Valve Design Wetted Check Valve Valve Material Porting Pump Pump Kit Weight

Brand Size Type Level Material Materials Seat Options Options Style Options Options lbs. (kg)

M20B3P1PPUS000 M 20 B 3 P 1 P P U S 0 00. 90 (41)
M20B3K1KPUS000 M 20 B 3 K 1 K P U S 0 00. 125 (57)
M20B3P2PPUS000 M 20 B 3 P 2 P P U S 0 00. 95 (43)
M20B3K2KPUS000 M 20 B 3 K 2 K P U S 0 00. 130 (59)
M20B3PGPPUS000 M 20 B 3 P G P P U S 0 00 126 (57)
M20B3KGKPUS000 M 20 B 3 K G K P U S 0 00 131 (59)

M20B3C1PCUS000 M 20 B 3 C 1 P C U S 0 00. 94 (43)
M20B3C2PCUS000 M 20 B 3 C 2 P C U S 0 00. 100 (45)

Note: Models listed in the table are for reference only. See nomenclature below for other models.

Pump Brand

M= MARATHON

Pump Size

20=2"

Check Valve Type

B= Ball

Design Level

3= Design Level 3

Wetted Material

K= PVDF
P= Polypropylene
C= Conductive Polypropylene

®

Diaphragm / Check Valve Materials

1= Santoprene/Santoprene
2= PTFE-Santoprene Backup/PTFE
6= PTFE Pumping, PTFE-Neoprene
Backup Driver/PTFE
B= Nitrile/Nitrile
C= FKM / PTFE
G= PTFE-Neoprene Backup/PTFE
N= Neoprene/Neoprene
Z= One-Piece Bonded/PTFE

Check Valve Seat

K= PVDF
P= Polypropylene

Non-Wetted Material Options

C= Carbon Filled Conductive
Polypropylene
P= 40%Glass Filled Polypropylene
1= 40%Glass Filled Polypropylene
w/PTFE Coated Hardware

Porting Options

U= Universal Flange
(Fits ANSI & DIN)
7= Dual Porting (ANSI)
8= Top Dual Porting (ANSI)
9= Bottom Dual Porting (ANSI)

Pump Style

D= with Electronic Leak Detection (110V)
E= with Electronic Leak Detection (220V)
M= with Mechanical Leak Detection
S= Standard
V= with Visual Leak Detection

Pump Options

0= None
1= Sound Dampening Mufer
2= Mesh Mufer
3= High temperature Air Valve
w/Integral Mufer
4= High temperature Air Valve

w/Sound Dampening Mufer

Pump Options continued

5= High temperature Air Valve
w/Mesh Mufer
6= Metal Mufer
7= Metal Mufer with
grounding cable

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

Kit Options continued

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
SP.= 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

(1)

II 1G c T5
II 3/1 G c T5
II 1D c T100°C
I M1 c
I M2 c

Note: Pumps are only ATEX
compliant when ordered with wet­ted material option C non-wetted
material option C, pump option 0,
6 or 7, and kit option 0.

(2)

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.

(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 20 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.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 2

Performance Curve, Model M20 Non-Metallic Design Level 3

MODEL S20 Non-Metallic Performance Curve

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

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

BAR

PSI

7

100

20 (34)

100 PSI (6.8 Bar)

6

80

80 PSI (5.44 Bar)

5

40 (68)

Displacement Per Stroke:

Flow Capacity:

60 (102)

.46 Gallons

1.74 Liters
0-160 Gallons Per Min.
0-605 Lilters Per Min.

60

4

HEAD

3

40

2

20

1

0

60 PSI (4.08 Bar)

80 (136)

40 PSI (2.72 Bar)

20 PSI (1.36 Bar)

Air Inlet Pressure

0

0 20 40 60 80 100 120 140 160

U.S. Gallons per minute

Liters per minute

CAPACITY

NPSHR

FEET

METERS

10

30

8

20

6

4

10

2

0

0

600500400300200100

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 3

Dimensions: M20 Non-Metallic

Dimensions in Inches [ ] in Millimeters
Dimensional tolerance: +/- 1/8" [ ] +/- 3mm

Note: Porting Flanges are also available with PN10
50mm DIN bolting conguration

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 4

Dimensions: M20 Non-Metallic with Spill Containment

Dimensions in Inches [ ] in Millimeters
Dimensional tolerance: +/- 1/8" [ ] +/- 3mm

Note: Porting Flanges are also available with PN10
50mm DIN bolting conguration

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 5

PRINCIPLE OF PUMP OPERATION

This ball type check valve pump
is powered by compressed air and is
a 1:1 ratio design. The inner side of
one diaphragm chamber is alternately
pressurized while simultaneously
exhausting the other inner chamber.
This causes the diaphragms, which are
connected by a common rod secured by
plates to the centers of the diaphragms,
to move in a reciprocating action. (As
one diaphragm performs the discharge
stroke the other diaphragm is pulled
to perform the suction stroke in the
opposite chamber.) Air pressure is
applied over the entire inner surface of
the diaphragm while liquid is discharged
from the opposite side of the diaphragm.
The diaphragm operates in a balanced
condition during the discharge stroke
which allows the pump to be operated
at discharge heads over 200 feet (61
meters) of water.

For maximum diaphragm life, keep
the pump as close to the liquid being
pumped as possible. Positive suction
head in excess of 10 feet of liquid
(3.048 meters) may require a back
pressure regulating device to maximize
diaphragm life.

Alternate pressurizing and
exhausting of the diaphragm chamber
is performed by an externally mounted,
pilot operated, four way spool type
air distribution valve. When the spool
shifts to one end of the valve body, inlet
pressure is applied to one diaphragm
chamber and the other diaphragm
chamber exhausts. When the spool
shifts to the opposite end of the valve
body, the pressure to the chambers

is reversed. The air distribution valve
spool is moved by a internal pilot valve
which alternately pressurizes one end
of the air distribution valve spool while
exhausting the other end. The pilot valve
is shifted at each end of the diaphragm
stroke when a actuator plunger is
contacted by the diaphragm plate. This
actuator plunger then pushes the end
of the pilot valve spool into position to
activate the air distribution valve.

The chambers are connected with
manifolds with a suction and discharge
check valve for each chamber,
maintaining flow in one direction
through the pump.

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.

For installations of rigid piping,
short sections of exible hose should
be installed between the pump
and the piping. The flexible hose
reduces vibration and strain to the
pumping system. A surge suppressor
is recommended to further reduce
pulsation in ow.

AIR SUPPLY

Air supply pressure cannot exceed
100 psi (7 bar). Connect the pump
air inlet to an air supply of sufcient
capacity and pressure required for
desired performance. When the air
supply line is solid piping, use a short
length of exible hose not less than ½"
(13mm) in diameter between the pump
and the piping to reduce strain to the

piping. The weight of the air supply line,
regulators and lters must be supported
by some means other than the air
inlet cap. Failure to provide support
for the piping may result in damage
to the pump. A pressure regulating
valve should be installed to insure
air supply pressure does not exceed
recommended limits.

AIR VALVE LUBRICATION

The air distribution valve and the
pilot valve are designed to operate
WITHOUT lubrication. This is the
preferred mode of operation. There may
be instances of personal preference
or poor quality air supplies when
lubrication of the compressed air
supply is required. The pump air system
will operate with properly lubricated
compressed air supply. Proper
lubrication requires the use of an air line
lubricator (available from MARATHON)
set to deliver one drop of SAE 10 non­detergent oil for every 20 SCFM (9.4
liters/sec.) of air the pump consumes
at the point of operation. Consult the
pump’s published Performance Curve
to determine this.

AIR LINE MOISTURE

Water in the compressed air supply
can create problems such as icing or
freezing of the exhaust air, causing
the pump to cycle erratically or stop
operating. Water in the air supply can
be reduced by using a point-of-use
air dryer to supplement the user’s air
drying equipment. This device removes
water from the compressed air supply
and alleviates the icing or freezing

problems.

AIR INLET AND PRIMING

To start the pump, open the air valve
approximately ½" to ¾" turn. 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.

BETWEEN USES

When the pump is used for materials
that tend to settle out or solidify when
not in motion, the pump should be
flushed after each use to prevent
damage. (Product remaining in the
pump between uses could dry out or
settle out. This could cause problems
with the diaphragms and check valves
at restart.) In freezing temperatures
the pump must be completely drained
between uses in all cases.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 6

Available from
MARATHON

CAUTION

The ai r ex hau st sh ou ld be
pi ped to an area f or safe
disposition of the product
bei ng pumped , in t he event
of a diaphr agm f ailu r e.

TYPICAL INSTALLATION GUIDE

For Non-Metallic Pumps

Air Inlet

Line

100 psi

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 7

RECYCLING

Many components of MARATHON® AODD

pumps are made of recyclable materials (see

chart on page 9 for material specications).

We encourage pump users to recycle worn
out parts and pumps whenever possible, after

any hazardous pumped uids are thoroughly
ushed.

IMPORTANT SAFETY

INFORMATION

IMPORTANT

Read these safety warnings

Read these safety warnings
and instructions in this

and instructions in this

manual completely, before

manual completely, before

installation and start-up

of the pump. It is the responsibility of the

of the pump. It is the responsibility of the
purchaser to retain this manual for reference.

purchaser to retain this manual for reference.
Failure to comply with the recommendations

Failure to comply with the recommendations
stated in this manual will damage the pump,

stated in this manual will damage the pump,
and void factory warranty.

and void factory warranty.

prevent leakage. Follow recommended torques
stated in this manual.

line may be pressurized and must be bled of
its pressure.

pumping a product which is hazardous or toxic,
the air exhaust must be piped to an appropriate
area for safe disposition.

installation and start-up

CAUTION

Before pump operation,

inspect all gasketed

fasteners for looseness

caused by gasket creep. Re-

torque loose fasteners to

WARNING

Before maintenance
or repair, shut off the

compressed air line,
bleed the pressure, and
disconnect the air line from
the pump. The discharge

WARNING

In the event of diaphragm
rupture, pumped material
may enter the air end of the
pump, and be discharged
into the atmosphere. If

WARNING

Take action to prevent static

sparking. Fire or explosion

can result, especially when

handling ammable liquids.

containers or other miscellaneous equipment

must be grounded. (See page 31)

The pump, piping, valves,

WARNING

This pump is pressurized

internally with air pressure

during operation. Always

make certain that all bolting

is in good condition and

bolting is reinstalled during assembly.

that all of the correct

WARNING

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

WARNING

Before doing any

maintenance on the pump,
be certain all pressure is

completely vented from the
pump, suction, discharge,

openings and connections. Be certain the air
supply is locked out or made non-operational,
so that it cannot be started while work is being
done on the pump. Be certain that approved
eye protection and protective clothing are worn
all times in the vicinity of the pump. Failure to
follow these recommendations may result in
serious injury or death.

piping, and all other

WARNING

Airborne particles and
loud noise hazards.

Wear ear and eye
protection.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 8

Material Codes

The Last 3 Digits of Part Number

000 Assembly, sub-assembly;

and some purchased items
010 Cast Iron
012 Powered Metal
015 Ductile Iron
020 Ferritic Malleable Iron
025 Music Wire
080 Carbon Steel, AISI B-1112
100 Alloy 20
110 Alloy Type 316 Stainless Steel
111 Alloy Type 316 Stainless Steel

(Electro Polished)
112 Alloy C
113 Alloy Type 316 Stainless Steel

(Hand Polished)
114 303 Stainless Steel
115 302/304 Stainless Steel
117 440-C Stainless Steel (Martensitic)
120 416 Stainless Steel

(Wrought Martensitic)
123 410 Stainless Steel

(Wrought Martensitic)
148 Hardcoat Anodized Aluminum
149 2024-T4 Aluminum
150 6061-T6 Aluminum
151 6063-T6 Aluminum
152 2024-T4 Aluminum (2023-T351)
154 Almag 35 Aluminum
155 356-T6 Aluminum
156 356-T6 Aluminum
157 Die Cast Aluminum Alloy #380
158 Aluminum Alloy SR-319
159 Anodized Aluminum
162 Brass, Yellow, Screw Machine Stock
165 Cast Bronze, 85-5-5-5
166 Bronze, SAE 660
170 Bronze, Bearing Type,

Oil Impregnated
175 Die Cast Zinc

180 Copper Alloy
305 Carbon Steel, Black Epoxy Coated
306 Carbon Steel, Black PTFE Coated
307 Aluminum, Black Epoxy Coated
308 Stainless Steel, Black PTFE Coated
309 Aluminum, Black PTFE Coated
310 PVDF Coated
330 Zinc Plated Steel
331 Chrome Plated Steel
332 Aluminum, Electroless Nickel Plated
333 Carbon Steel, Electroless

Nickel Plated
335 Galvanized Steel
336 Zinc Plated Yellow Brass
337 Silver Plated Steel
340 Nickel Plated
342 Filled Nylon
353 Geolast; Color: Black
354 Injection Molded #203-40 Santoprene-

Duro 40D +/-5; Color: RED
355 Thermal Plastic
356 Hytrel
357 Injection Molded Polyurethane
358 Urethane Rubber

(Some Applications) (Compression Mold)
359 Urethane Rubber
360 Nitrile Rubber. Color coded: RED
361 FDA Accepted Nitrile
363 FKM (Fluorocarbon).

Color coded: YELLOW
364 E.P.D.M. Rubber. Color coded: BLUE
365 Neoprene Rubber.

Color coded: GREEN
366 Food Grade Nitrile
368 Food Grade EPDM
370 Butyl Rubber. Color coded: BROWN
371 Philthane (Tuftane)
374 Carboxylated Nitrile
375 Fluorinated Nitrile

378 High Density Polypropylene
379 Conductive Nitrile
405 Cellulose Fibre
408 Cork and Neoprene
425 Compressed Fibre
426 Blue Gard
440 Vegetable Fibre
465 Fibre
500 Delrin 500
501 Delrin 570
502 Conductive Acetal, ESD-800
503 Conductive Acetal, Glass-Filled
505 Acrylic Resin Plastic
506 Delrin 150
520 Injection Molded PVDF Natural color
521 Conductive PVDF
540 Nylon
541 Nylon
542 Nylon
544 Nylon Injection Molded
550 Polyethylene
551 Glass Filled Polypropylene
552 Unlled Polypropylene
553 Unlled Polypropylene
555 Polyvinyl Chloride
556 Black Vinyl
557 Conductive Polypropylene
558 Conductive HDPE
559 Glass-Filled Conductive Polypropylene
570 Rulon II
580 Ryton
590 Valox
591 Nylatron G-S
592 Nylatron NSB
600 PTFE (virgin material)

Tetrauorocarbon (TFE)
601 PTFE (Bronze and moly lled)
602 Filled PTFE
603 Blue Gylon

604 PTFE
606 PTFE
607 Envelon
608 Conductive PTFE
610 PTFE Integral Silicon
611 PTFE Integral FKM
632 Neoprene/Hytrel
633 FKM (Fluorocarbon)/PTFE
634 EPDM/PTFE
635 Neoprene/PTFE
637 PTFE, FKM (Fluorocarbon)/PTFE
638 PTFE, Hytrel/PTFE
639 Nitrile/TFE
643 Santoprene/EPDM
644 Santoprene/PTFE
650 Bonded Santoprene and PTFE
654 Santoprene Diaphragm, PTFE Overlay

Balls and seals

656 Santoprene Diaphragm and

Check Balls/EPDM Seats

661 EPDM/Santoprene

Delrin and Hytrel are registered tradenames
of E.I. DuPont.

Gylon is a registered tradename of Garlock, Inc.

Nylatron is a registered tradename of
Polymer Corp.

Santoprene is a registered tradename of
Exxon Mobil Corp.

Rulon II is a registered tradename of
Dixion Industries Corp.

Ryton is a registered tradename of
Phillips Chemical Co.

Valox is a registered tradename of
General Electric Co.

MARATHON, Portapump and SludgeMaster
are registered tradenames of

Warren Rupp, Inc.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 9

TROUBLESHOOTING
Possible Symptoms:

• Pump will not cycle.

• Pump cycles, but produces no ow.

• Pump cycles, but ow rate is

unsatisfactory.

• Pump cycle seems unbalanced.

• Pump cycle seems to produce

excessive vibration.

What to Check: Excessive suction lift
in system.
Corrective Action: For lifts exceeding
20 feet (6 meters), lling the pumping
chambers with liquid will prime the
pump in most cases.

What to Check: Excessive flooded
suction in system.
Corrective Action: For flooded
conditions exceeding 10 feet (3 meters)
of liquid, install a back pressure device.

What to Check: System head exceeds
air supply pressure.
Corrective Action: Increase the
inlet air pressure to the pump. Most
diaphragm pumps are designed for 1:1
pressure ratio at zero ow.

What to Check: Air supply pressure or
volume exceeds system head.
Corrective Action: Decrease inlet
air pressure and volume to the
pump as calculated on the published
PERFORMANCE CURVE. Pump is
cavitating the uid by fast cycling.

Corrective Action: Meet or exceed
pump connection recommendations
shown on the DIMENSIONAL
DRAWING.

What to Check: Restricted or
undersized air line.
Corrective Action: Install a larger
air line and connection. Refer to air
inlet recommendations shown in your
pump’s SERVICE MANUAL.

What to Check: Check ESADS+Plus,
the Externally Serviceable Air
Distribution System of the pump.
Corrective Action: Disassemble and
inspect the main air distribution valve,
pilot valve and pilot valve actuators.
Refer to the parts drawing and air valve
section of the SERVICE MANUAL.
Check for clogged discharge or closed
valve before reassembly.

What to Check: Rigid pipe connections
to pump.
Corrective Action: Install flexible
connectors and a surge suppressor.

What to Check: Blocked air exhaust
mufer.
Corrective Action: Remove mufer
screen, clean or de-ice and reinstall.
Refer to the Air Exhaust section of your
pump SERVICE MANUAL.

What to Check: Pumped uid in air
exhaust mufer.

Corrective Action: Disassemble
pump chambers. Inspect for diaphragm
rupture or loose diaphragm plate
assembly. Refer to the Diaphragm
Replacement section of your pump
SERVICE MANUAL.

What to Check: Suction side air
leakage or air in product.
Corrective Action: Visually inspect
all suction side gaskets and pipe
connections.

What to Check: Obstructed check

valve.

Corrective Action: Disassemble the
wet end of the pump and manually
dislodge obstruction in the check valve
pocket. Refer to the Check Valve
section of the pump SERVICE MANUAL
for disassembly instructions.

What to Check: Worn or misaligned
check valve or check valve seat.
Corrective Action: Inspect check
valves and seats for wear and proper
seating. Replace if necessary. Refer
to Check Valve section of the pump
SERVICE MANUAL for disassembly
instructions.

What to Check: Blocked suction line.
Corrective Action: Remove or ush

obstruction. Check and clear all suction
screens and strainers.

What to Check: Blocked discharge
line.

Corrective Action: Check for
obstruction or closed discharge line

valves.

What to Check: Blocked pumping
chamber.
Corrective Action: Disassemble
and inspect the wetted chambers
of the pump. Remove or flush any
obstructions. Refer to the pump
SERVICE MANUAL for disassembly
instructions.

What to Check: Entrained air or vapor
lock in one or both pumping chambers.
Corrective Action: Purge chambers
through tapped chamber vent plugs.
PURGING THE CHAMBERS OF
AIR CAN BE DANGEROUS! Contact
the MARATHON Technical Services
Department before performing this
procedure. A model with top-ported
discharge will reduce or eliminate
problems with entrained air.

If your pump continues to perform
below your expectations, contact your
local MARATHON Distributor or factory
Technical Services Group for a service
evaluation.

WARRANTY

Refer to the enclosed MARATHON
Warranty Certicate.

What to Check: Undersized suction
line.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 10

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 11

Torque:
350 in. lbs.

Torque:
400 in. lbs.

Torque:
350 in. lbs.

Torque:
480 in. lbs.

Torque:
480 in. lbs.

Torque:
120 in. lbs.

Torque:
150 in. lbs.

Torque:
120 in. lbs.

Composite Repair Drawing

476-253-000 AIR END KIT

Seals, O-Rings, Gaskets,
Retaining Rings, Air Valve
Sleeve & Spool Set
and Pilot Valve Assembly

476-254-000 AIR END KIT
(for Stroke Indicator Option)
Seals, O-Rings, Gaskets,

Retaining Rings, Air Valve
Sleeve & Spool Set
and Pilot Valve Assembly

476-257-354 WETTED END KIT

Santoprene Diaphragms,
Santoprene Balls and TFE Seals

476-257-360 WETTED END KIT

Nitrile Diaphragms,
Nitrile Balls and PTFE Seals

476-257-365 WETTED END KIT

Neoprene Diaphragms,
Neoprene Balls and PTFE Seals

476-257-633 WETTED END KIT
FKM Diaphragms,

PTFE Balls and PTFE Seals

476-257-635 WETTED END KIT

Neoprene Diaphragms,
PTFE Overlay Diaphragms,
PTFE Balls and PTFE Seals

476-257-654 WETTED END KIT

Santoprene Diaphragms,
PTFE Overlay Diaphragms,
PTFE Balls and PTFE Seals

476-258-640 WETTED END KIT
(For Spill Containment Pumps)

Neoprene Diaphragms,
PTFE Overlay Diaphragms,
PTFE Balls and PTFE Seals

Overlay Option

Drawing

One-Piece

Bonded Option

Fluid End Section

Assembly

Air End Section

Assembly

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 12

Composite Repair Parts List

ITEM PART NUMBER DESCRIPTION QTY

1 031-140-000 Air Valve Assembly 1
031-140-001 Air Valve Assembly
031-140-002 Air Valve Assembly w/ PTFE coated Hardware 1
031-141-000 Air Valve Assembly (No Integral Mufer) 1
031-141-001 Air Valve Assembly (No Integral Mufer) 1
031-141-002 Air Valve Assembly (No Integral Mufer 1
PTFE Coated Hardware)
2 095-110-558 Pilot Valve Assembly 1
3 050-038-354 Ball, Check 4
050-038-360 Ball, Check 4
050-038-365 Ball, Check 4
050-038-600 Ball, Check 4
4 114-024-551 Intermediate Assembly 1
114-024-559 Intermediate Assembly 1
5 132-035-360 Bumper Diaphragm 2
6 135-034-506 Bushing, Plunger 2
7 165-116-551 Air Inlet Cap Assembly 1
165-116-559 Air Inlet Cap Assembly 1
8 170-055-115 Capscrew, Hex HD 1/2-13 x 2.50 16
170-055-308 Capscrew, Hex HD 1/2-13 x 2.50 16
9 170-066-115 Capscrew, Hex HD 1/2-13 x 2.25 8
170-066-308 Capscrew, Hex HD 1/2-13 x 2.25 8
10 170-069-115 Capscrew, Hex HD5/16-18 x 1.75 4
170-069-308 Capscrew, Hex HD 5/16-18x 1.75 4
11 170-092-115 Capscrew, Hex HD 1/2-13 x 4.00 8
170-092-308 Capscrew, Hex HD 1/2-13 x 4.00 8
12 170-015-115 Capscrew, Hex HD 5/8-11 x 2.75 16
170-015-308 Capscrew, Hex HD 5/8-11-x 2.75 16
13 171-053-115 Capscrew, Soc HD 3/8-16 X 2.75 4
171-053-308 Capscrew, Soc HD 3/8-16X 2.75 4
14 171-078-115 Capscrew, Flat HD 3/8-16 X1.25 8
15 196-188-551 Chamber, Inner 2
196-188-559 Chamber, Inner 2
16 196-190-520 Chamber, Outer 2
196-190-552 Chamber, Outer 2
196-190-557 Chamber, Outer 2
17 286-005-354 Diaphragm 2
286-005-360 Diaphragm 2
286-005-363 Diaphragm 2
286-005-365 Diaphragm 2
286-114-000 Diaphragm, One-Piece Bonded PTFE 2
18 286-119-600 Diaphragm, Overlay 2
19 312-102-520 Elbow, Discharge 2
312-102-552 Elbow, Discharge 2
312-102-557 Elbow, Discharge 2

ITEM PART NUMBER DESCRIPTION QTY

20 312-116-520 Elbow, Suction 2
312-116-552 Elbow, Suction 2
312-116-557 Elbow, Suction 2
21 360-093-360 Gasket, Main Air Valve 1
22 360-103-360 Gasket, Pilot Valve 1
23 360-104-360 Gasket, Air Inlet Cap 1
360-104-379 Gasket, Air Inlet Cap (Conductive Models Only) 1
24 360-107-360 Gasket, Inner Chamber 2
25 518-199-520 Manifold 2
518-199-520E Manifold, 50mm DIN 2
518-199-552 Manifold 2
518-199-552E Manifold, 50mm DIN 2
518-199-557 Manifold 2
518-199-557E Manifold, 50mm DIN 2
26 545-008-110 Nut, Hex 1/2-13 24
545-008-308 Nut, Hex 1/2-13 24
27 545-009-110 Nut, Hex 5/8-11 1
545-009-308 Nut, Hex 5/8-11 16
28 560-001-360 O-Ring 2
29 612-195-157
612-227-150
30 612-225-520 Outer, Plate Diaphragm 2
612-225-552 Outer, Plate Diaphragm 2
31 620-004-114 Plunger, Actuator 2
32 670-046-520 Retainer, Ball 4
670-046-552 Retainer, Ball 4
33 675-042-115 Ring, Retainer 2
34 685-063-120 Rod Diaphragm 1
35 720-004-360 Seal, U-Cup 2
36 720-038-600 Seal, Manifold 4
37 720-041-600 Seal, Check Valve Assembly 8
38 722-075-520 Seat, Check Valve 4
722-075-552 Seat, Check Valve 4
39 901-038-115 Washer, Flat 5/16" 4
901-038-308 Washer, Flat 5/16" 4
40 901-046-115 Washer, Flat 1/2" 48
901-046-308 Washer, Flat 1/2" 48
41 901-047-115 Washer, Flat 5/8" 32
901-047-308 Washer, Flat 5/8" 32
42 901-048-115 Washer, Flat 3/8" 4
901-048-308 Washer, Flat 3/8" 4

NOT SHOWN:
535-010-000 Mufer 1
530-027-000 Mufer 1
530-033-000 Mufer 1

Inner Diaphragm Plate 2
Inner Diaphragm Plate (One-Piece Bonded Option) 2

Note: ATEX Compliant

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 13

Spill Containment Option

Note:

Items # 46
the diaphragms
are to be installed
with the concave
side facing
toward the outer
chambers.

M20 Spill Containment Repair Parts List

ITEM PART NUMBER DESCRIPTION QTY

1 031-146-000 Air Valve Assembly 1
(replaces 031-140-000)
031-147-000 Air Valve Assembly 1
(replaces 031-141-000)
43 170-073-115 Capscrew, Hex HD 1/2-13 x 4.50 8
(replaces 170-068-115)
170-073-308 Capscrew, Hex HD 1/2-13 x 4.50 8
(replaces170-068-115)
44 170-102-115 Capscrew, Hex HD 1/2-13 x 6.00 8
(replaces 170-095-115)
170-102-308 Capscrew, Hex HD 1/2-13 x 6.00 8
45 196-189-520 Chamber, Spill Prevention 2
196-189-552 Chamber, Spill Prevention 2
46 286-120-600 Diaphragm, Pumping 2
47 518-200-520 Manifold 2
(replaces 518-199-520)
518-200-520E Manifold, 50mm DIN 2
(replaces 518-199-520E)
518-200-552 Manifold 2
(replaces 518-199-552)
518-200-552E Manifold, 50mm DIN 2
(replaces 518-199-552E)
48 538-022-110 Nipple, Pipe 4
538-022-308 Nipple, Pipe 4
49 560-078-611 O-Ring 8
50 618-003-110 Plug, Pipe 4
618-003-308 Plug, Pipe 4
51 618-025-110 Plug, Boss 4
618-025-308 Plug, Boss 4
52 618-031-110 Plug, Boss 4
618-031-308 Plug, Boss 4
53 835-005-110 Tee, Pipe 4
835-005-308 Tee, Pipe 4
54 860-055-606 Tube, Sight 2
55 866-060-110 Connector, Tube 4

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 14

SPILL CONTAINMENT CONCEPT

The spill containment option
prevents the air end components from
being contaminated or damaged when
a pumping diaphragm ruptures while
pumping caustic or toxic materials. It
also helps to protect the environment.
With the installation of optional leak
detectors (either mechanical or
electronic) the diaphragm rupture can
be detected. The pump can then be
shut down and repaired before any
caustic or toxic materials can enter
the air end and be exhausted into the
surrounding environment.

OPTION DIAPHRAGM SERVICING

To service the diaphragms first
shut off the suction, then shut off the
discharge lines to the pump. Next shut
off the compressed air supply, bleed
the pressure from the pump, and
disconnect the air supply line from the
pump. Drain any remaining pumped
liquid from the pump. Remove the pump
before servicing.

Next, drain the uid from the spill
containment chambers. This can be
done by removing the bottom plug
(item 51) from each spill containment
chamber.

After the fluid from the spill
containment chambers has been
drained, the wet end components
can now be removed. See diaphragm
servicing section for detailed
instructions. The spill containment
option has two additional virgin PTFE
pumping diaphragms (item 46). These
diaphragms are installed with the
natural concave curve toward the

outer chamber (items 16 from the pump
assembly drawing).

FILLING CHAMBERS WITH LIQUID

THE CHAMBERS ARE FILLED

WITH WATER AT THE FACTORY.

If you prefer to substitute another
liquid, to prevent system contamination
consult the factory rst to determine
compatibility of the substitute with pump
construction.

Follow the steps listed here to
replace the liquid in the pump after
disassembly or liquid loss:

1. Drain the fluid in the spill
containment chambers by removing
the bottom two boss plugs (items 51).
Replace the bottom two boss plugs after
the uid is drained.

2. Remove the eight capscrews (item

8) fastening the discharge manifold and
elbows to the outer chambers (items

16). The discharge manifolds and
elbows can now be removed.

3. Remove the top two boss plugs
(items 51). The spill containment
chambers are lled through the exposed
ports.

4. Install safety clip (item 1-N) into
the smaller unthreaded hole in one end
cap (item 1-D). This locks the valve
spool to one side, keeping the pump
from shifting. Apply air pressure to the
air distribution valve.

5. Face the side of the pump with
the installed safety clip. If the safety
clip is installed in the top end cap, ll
the left spill containment chamber. If
the safety clip is installed on the bottom
end cap, ll the right spill containment
chamber. The volume of uid is 1950

ml (65.9 . oz.). It is important that the
exact amount of uid is used. Too little
or too much uid causes premature
diaphragm failure and erratic pumping.

6. Loosely reinstall one boss plug
(item 51) to the lled spill containment
chamber.

7. Shut off air supply. Remove safety
clip. Adjust the air line regulator so that
air pressure slowly lls the pump. The
diaphragm expands, forcing the uid
in the chamber to be slowly displaced.
When the pump shifts to the opposite
side, quickly install the safety clip.

8. Loosen the top boss plug on the
lled chambers. This allows uid in the
chamber to purge trapped air from the
chamber. This can be seen by watching
the column of uid in the sight tube.
When uid appears at the top of the
port, quickly tighten the boss plug. Fluid
loss of 1 to 2ml is acceptable.

9. Tilt the pump so the uppermost
pipe tee (item 53) is in the vertical
position. Loosen the pipe plug (item

50). This will allow trapped air to
purge through the pipe tee. When uid
appears at the tee opening, reinstall
the pipe plug.

NOTE: If all air is not purged using

this procedure, remove the check valve
components from the top port of the
outer chamber (item 16). Apply manual
pressure to the pumping diaphragm by
inserting a blunt instrument into the top
port of the outer chamber and applying
pressure to the diaphragm. Loosen the
pipe plug (item 50) allowing the uid
to purge any remaining trapped air.
Reinstall the plug.

10. Repeat steps 5 through 9 to ll

opposite spill containment chamber.

11. Reinstall the check valve
components, discharge manifold
and elbows to the pump. The
pump is now ready for operation.

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.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 15

NOTE: CHECK GAP AFTER ASSEMBLY
TO INSURE COMPLETE
INSTALLATION OF RETAINING RING

Air Distribution Valve Assembly Drawing

1-J

1-D

1-F

1-G

1-H

1-G

1-E

1-C

1-A

1-A

1-B

1-C

1-E

1-G

1-H

M20 Design Level 3

AIR VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty

1 031-140-000 Air Valve Assembly 1

1-A 031-139-000 Sleeve and Spool Set 1
1-B 095-094-551 Body, Air Valve 1
1-C 132-029-552 Bumper 2
1-D 165-096-551 Cap, Mufer 1
1-E 165-115-558 Cap, End 2
1-F 530-028-550 Mufer 1
1-G 560-020-360 O-Ring 8
1-H 675-044-115 Ring, Retaining 2
1-J 710-015-115 Screw, Self-tapping 4

For Pumps with Alternate Mesh, Sound Dampening

Mufers or Piped Exhaust:

1 031-141-000 Air Valve Assembly 1

(Includes all items used on 031-140-000
minus items 1-D, 1-F & 1-J)

AIR VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty

1 031-140-001 Air Valve Assembly 1

1-A 031-139-000 Sleeve and Spool Set 1
1-B 095-094-559 Body, Air Valve 1
1-C 132-029-552 Bumper 2
1-D 165-096-559 Cap, Mufer 1
1-E 165-115-558 Cap, End 2
1-F 530-028-550 Mufer 1
1-G 560-020-360 O-Ring 8
1-H 675-044-115 Ring, Retaining 2
1-J 710-015-115 Screw, Self-tapping 4

For Pumps with Metal Mesh Mufer or Piped Exhaust:

1 031-141-001 Air Valve Assembly 1

(Includes all items used on 031-140-001
minus items 1-D, 1-F & 1-J)

Note: ATEX Compliant

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 16

AIR DISTRIBUTION VALVE
SERVICING

To service the air valve rst shut off
the compressed air, bleed the pressure
from the pump, and disconnect the air
supply line from the pump.

STEP #1: See Composite Repair
and Parts Drawing.

Using a 5/16" Allen wrench, remove
the four hex socket capscrews (item 13)
and four at washers (item 42). Remove
the air valve assembly from the pump.

Remove and inspect gasket (item

21) for cracks or damage. Replace
gasket if needed.

STEP #2: Disassembly of the air

valve.

To access the internal air valve
components rst remove the two retaining
rings (item 1-H) from each end of the air
valve assembly using clip ring pliers.

Next remove the two end caps (item
1-E). Inspect the o-rings (item 1-G) for
cuts or wear. Replace the o-rings if
necessary.

Remove the two bumpers (item
1-C). Inspect the bumpers for cuts, wear
or abrasion. Replace if necessary.

Remove the spool (part of item
1-A) from the sleeve. Be careful not to
scratch or damage the outer diameter
of the spool. Wipe spool with a soft cloth
and inspect for scratches or wear.

Inspect the inner diameter of the
sleeve (part of item 1-A) for dirt,
scratches, or other contaminates.
Remove the sleeve if needed and
replace both the sleeve and spool with
a new sleeve and spool set (item 1-A).

STEP #3: Reassembly of the air

valve.

Install one end cap (item 1-E) with
an o-ring (item 1-G) and one bumper
(item 1-C) into one end of the air valve
body (item 1-B). Install one retaining
ring (item 1-H) into the groove on the

same end.

Remove the new sleeve an spool
set (item 1-A) from the plastic bag.
Carefully remove the spool from the
sleeve. Install the six o-rings (item 1-G)
into the six grooves on the sleeve. Apply
a light coating of grease to the o-rings
before installing the sleeve into the
valve body (item 1-B), align the slots
in the sleeve with the slots in the valve
body. Insert the spool into the sleeve.
Be careful not to scratch or damage
the spool during installation. Push the
spool in until it touches the bumper on
the opposite end.

Install the remaining bumper, end
cap with o-ring, and retaining ring.

Fasten the air valve assembly
(item 1) and gasket (item 21) to the

pump.

Connect the compressed air line to
the pump. The pump is now ready for
operation.

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.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 17

NOTE: CHECK GAP AFTER ASSEMBLY
TO INSURE COMPLETE
INSTALLATION OF RETAINING RING

Air Valve Assembly Drawing with
Stroke Indicator Option M20 Design Level 3

Note: Stroke Indicator is standard on Spill Containment models

PILOT VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
1 031-146-000 Air Valve Assembly 1

1-A 031-143-000 Sleeve and Spool Set w/Pins 1
1-B 095-094-559 Body, Air Valve 1
1-C 132-029-552 Bumper 2
1-D 165-096-559 Cap, Mufer 1
1-E 165-098-147 Cap, End 2
1-F 530-028-550 Mufer 1
1-G 560-020-360 O-Ring 8
1-H 675-044-115 Ring, Retaining 2
1-J 710-015-115 Screw, Self-Tapping 4
1-K 210-008-330 Clip, Safety 1
1-M 560-029-360 O-Ring 2

For Pumps with PTFE Coated Hardware:

1 031-146-002 Air Valve Assembly 1
1-J 710-015-308 Screw, Self Tapping 4

(includes all other items on 031-146-000 above)

For Pumps with Alternate Mesh, Sound Dampening

Mufers or Piped Exhaust:

1 031-147-000 Air Valve Assembly 1

(includes all items on 031-146-000 minus 1-D, 1-F, & 1-J)

Note: ATEX Compliant

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 18

AIR DISTRIBUTION VALVE WITH
STROKE INDICATOR OPTION
SERVICING

To service the air valve rst shut off
the compressed air, bleed the pressure
from the pump, and disconnect the air
supply line from the pump.

STEP #1: See Composite Repair
and Parts Drawing.

Using a 5/16" Allen wrench, remove
the four hex socket capscrews
(item 13) and four flat washers
(item 42). Remove the air valve
assembly from the pump.

Remove and inspect gasket
(item 21) for cracks or damage. Replace
gasket if needed.

STEP #2: Disassembly of the
air valve.

To access the internal air valve
components rst remove the two retaining
rings (item 1-H) from each end of the air
valve assembly using clip ring pliers.

Next remove the two end caps
(item 1-E). Inspect the o-rings
(item 1-G) for cuts or wear. Replace the
o-rings if necessary.

Remove the two bumpers
(item 1-C). Inspect the bumper for
cuts, wear or abrasions. Replace if
necessary.

Remove the spool (part of item
1-A) from the sleeve. Be careful not to
scratch or damage the outer diameter
of the spool. Wipe spool with a soft cloth
and inspect for scratches or wear.

Inspect the inner diameter of the
sleeve (part of item 1-A) for dirt,
scratches, or other contaminates.
Remove the sleeve if needed and
replace both the sleeve and spool with
a new sleeve and spool set (item 1-A).

STEP #3: Reassembly of the
air valve.

Install one bumper (item 1-C) and
one end cap (item 1-E) with an o-ring
(item 1-G) into one end of the air valve
body (item 1-B). Install one retaining
ring (item 1-H) into the groove on the
same end. Insert the safety clip (item
1-K) through the small unthreaded hole
in the end cap.

Remove the new sleeve an spool
set (item 1-A) from the plastic bag.
Carefully remove the spool from the
sleeve. Install the six o-rings (item 1-G)
into the six grooves on the sleeve. Apply
a light coating of grease to the o-rings
before installing the sleeve into the
valve body (item 1-B), align the slots
in the sleeve with the slots in the valve
body. Insert the spool into the sleeve.
Be careful not to scratch or damage the
spool during installation. Push the spool
in until the pin touches the safety clip
on the opposite end.

Install the remaining bumper, end
cap with o-ring, and retaining ring.

Fasten the air valve assembly
(item 1) and gasket (item 21) to
the pump.

Connect the compressed air line to
the pump. The pump is now ready for
operation.

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.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 19

Solenoid Shifted Air Valve Drawing

58

56

57

56

60

59

II 2G EEx m c T5
II 2D c IP65 T100°C

SOLENOID SHIFTED AIR VALVE PARTS LIST

(Includes All Items Used on Composite Repair Parts List Except as Shown)

Item Part Number Description Qty

56 893-097-000 Solenoid Valve, NEMA4 1
57 219-001-000 Solenoid Coil, 24VDC 1
219-004-000 Solenoid Coil, 24VAC/12VDC 1
219-002-000 Solenoid Coil, 120VAC 1
219-003-000 Solenoid Coil, 240VAC 1
58 241-001-000 Connector, Conduit 1
59 170-029-330 Capscrew, Hex HD 5/16-18 x 1.50 4
60 618-051-150 Plug 2

IEC EEX m T4

For Explosion Proof Solenoid Coils used in North America and
outside the European Union.

57 219-009-001 Solenoid Coil, 120VAC 60 Hz 1
219-009-002 Solenoid Coil, 240VAC 60 Hz 1
219-009-003 Solenoid Coil, 12VDC 1
219-009-004 Solenoid Coil, 24VDC 1
219-009-005 Solenoid Coil, 110VAC 50 Hz 1
219-009-006 Solenoid Coil, 230VAC 50 Hz 1
Note: Item 58 (Conduit Connector) is not required

For Explosion Proof Solenoid Coils used in the European Union

II 2G EEx m c II T5
II 3/2 G Ex m c II T5
II 2D c IP65 T100°c

For ATEX Compliant Solenoid Coils used in the European Union

*

57 219-011-001 Solenoid Coil, Single mounting 12 VDC, 3.3W / 267mA 1
219-011-002 Solenoid Coil, Single mounting 24 VDC, 3.3W / 136mA 1
219-011-003 Solenoid Coil, Single mounting 110/120 VAC, 3.4W / 29mA 1
219-011-004 Solenoid Coil, Single mounting 220/240 VAC, 3.4W / 15mA 1

Note: Item 37 (Conduit Connector) is not required

Compressed Air Temperature Range: Maximum Ambient Temperature to plus 50°C

*Special Conditions For Safe Use

A fuse corresponding to its rated current (max. 3*I
series to each solenoid as short circuit protection. For very low rated currents of the solenoid the fuse of lowest current value according to the indicated IEC standard will be sufcient. The fuse may be
accommodated in the associated supply unit or shall be separately arranged. The rated voltage to the fuse shall be equal to or greater than the stated rated voltage of the magnet coil. The breakage
capacity of the fuse-link shall be as high as or higher than the maximum expected short circuit current at the location of the installation (usually 1500 A). A maximum permissible ripple of 20% is valid for
all magnets of direct-current design.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 20

according IEC 60127-2-1) or a motor protecting switch with short-circuit and thermal instantaneous tripping (set to rated current) shall be connected in

rat

SOLENOID SHIFTED AIR
DISTRIBUTION VALVE OPTION

MARATHON’s solenoid shifted,
air distribution valve option utilizes
electrical signals to precisely control
your MARATHON’s speed. The
solenoid coil is connected to a customer

- supplied control. Compressed air
provides the pumping power, while
electrical signals control pump speed
(pumping rate).

OPERATION

The Solenoid Shifted MARATHON has a
solenoid operated, air distribution valve
in place of the standard MARATHON’s
pilot operated, air distribution valve.
Where a pilot valve is normally utilized
to cycle the pump’s air distribution
valve, an electric solenoid is utilized.
As the solenoid is powered, one of the
pump’s air chambers is pressurized
while the other chamber is exhausted.
When electric power is turned off, the
solenoid shifts and the pressurized
chamber is exhausted while the other
chamber is pressurized. By alternately
applying and removing power to the
solenoid, the pump cycles much like a
standard MARATHON pump, with one
exception. This option provides a way
to precisely control and monitor pump

speed.

Solenoid Connector

Before wiring, remove
terminal block from
conduit connector.

Wiring
Diagram

#2 Terminal Neutral
(Negative)

3rd Terminal for
ground.

#1 Terminal
Power
(Positive)

BEFORE INSTALLATION

Before wiring the solenoid, make
certain it is compatible with your system
voltage.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 21

Diaphragm Service
Drawing, Non-Overlay

Diaphragm Service
Drawing with Overlay

Torque: 480 in/lbs

Torque: 480 in/lbs

Field conversion kit 475-256-000 available for
conversion from PTFE Overlay to One-Piece
bonded Diaphragm

Part Description Qty

286-114-000 One-Piece Diaphragm 2
612-227-150 Plate, Inner Diaphragm 2

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 22

DIAPHRAGM SERVICING

To service the diaphragms first
shut off the suction, then shut off the
discharge lines to the pump. Shut
off the compressed air supply, bleed
the pressure from the pump, and
disconnect the air supply line from the
pump. Drain any remaining liquid from
the pump.

Step #1: See the pump composite
repair parts drawing, and the diaphragm
servicing illustration.

Using a wrench or socket, remove
the 16 capscrews (items 8), hex nuts
and washers that fasten the elbows
(items 19 & 20) to the outer chambers
(items 16). Remove the elbows with the
manifolds and spacers attached.

Step #2: Removing the outer
chambers.

Using a wrench or socket, remove
the 16 capscrews (items 9 & 11), hex
nuts and washers that fasten the outer
chambers, diaphragms, and inner
chambers (items 15) together.

Step #3: Removing the diaphragm
assemblies.

Use a 1½" (38mm) wrench or
six pointed socket to remove the
diaphragm assemblies (outer plate,
diaphragm, and inner plate) from the
diaphragm rod (item 34) by turning
counterclockwise.

Inspect the diaphragm (item 17)
for cuts, punctures, abrasive wear
or chemical attack. Replace the

diaphragms if necessary.

Step #4: Installing the diaphragms.

Push the threaded stud of the outer
diaphragm plate through the center
hole of the diaphragm. Thread the inner
plate clockwise onto the stud. Use a
torque wrench to tighten the diaphragm
assembly together to 480 in Lbs. (54.23
Newton meters). 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 #5: Installing the diaphragm
assemblies to the pump.

Make sure the bumper (item 5) is
installed over the diaphragm rod.

Thread the stud of one diaphragm
assembly clockwise into the tapped
hole at the end of the diaphragm rod
(item 34) until the inner diaphragm plate
is ush to the end of the rod. Insert rod
into pump.

Fasten the remaining outer chamber
(item 17) to the pump, using the
capscrews (items 11 & 12), hex nuts
and at washers and tighten.

Make sure the bumper (item 6) is
installed over the diaphragm rod.

Thread the stud of the other
diaphragm assembly clockwise into the
tapped hole at the end of the diaphragm
rod (item 34) make sure the 2nd
diaphragm assembly is tight enough
that the inner plate is ush to the end
of the rod. The bead of the end of the
diaphragm should t into the groove of

the inner chamber.

Fasten the remaining outer chamber
(item 16) to the pump, using the
capscrews (items 9 & 11), hex nuts and
at washers.

Step #6: Re-install the elbow/
spacer/manifold assemblies to the
pump, using the capscrews (items 8),
hex nuts and at washers.( Ref.pg 12)

The pump is now ready to be
re-installed, connected and returned
to operation.

OVERLAY DIAPHRAGM SERVICING

The PTFE overlay diaphragm
(item 18) is designed to t over the
exterior of the standard diaphragm
(item 17).

Follow the same procedures
described for the standard diaphragm
for removal and installation.

One-Piece Bonded DIAPHRAGM
SERVICING (Bonded PTFE with

integral plate)

The one-piece bonded diaphragm
(item 17) has a threaded stud installed
in the integral plate at the factory. The
inner diaphragm plate has a through
hole instead of a threaded hole.

Place the inner plate over the
diaphragm stud and thread the rst
diaphragm/inner plate onto the dia­phragm rod only until the inner plate
contacts the rod. Do not tighten. A small
amount of grease may be applied between
the inner plate and the diaphragm to
facilitate assembly.

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.

Insert the diaphragm/rod
assembly into the pump and install the
outer chamber. Turn the pump over
and thread the second diaphragm /
inner plate onto the diaphragm rod.
Turn the diaphragm until the inner
plate contacts the rod and hand tighten
the assembly. Continue tightening
until the bolt holes align with the inner
chamber holes. DO NOT LEAVE THE
ASSEMBLY LOOSE.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 23

Pilot Valve Servicing, Assembly Drawing & Parts List

PILOT VALVE ASSEMBLY PARTS LIST

ITEM PART NUMBER DESCRIPTION QTY

4 095-110-558 Pilot Valve Assembly 1
4-A 095-095-558 Valve Body 1
4-B 755-052-000 Sleeve (With O-rings) 1
4-C 560-033-360 O-ring (Sleeve) 6
4-D 775-055-000 Spool (With O-rings) 1
4-E 560-023-360 O-ring (Spool) 3
4-F 675-037-080 Retaining Ring 1

PILOT VALVE SERVICING

To service the pilot valve rst shut
off the compressed air supply, bleed
the pressure from the pump, and
disconnect the air supply line from
the pump.

STEP #1: See pump assembly
drawing.

Using a 1/2" wrench or socket,
remove the four capscrews (item 10).
Remove the air inlet cap (item 7) and
air inlet gasket (item 23). The pilot valve
assembly (item 2) can now be removed

STEP #2: Disassembly of the

pilot valve.

Remove the pilot valve spool (item
4-D). Wipe clean and inspect spool and
o-rings for dirt, cuts or wear. Replace
the o-rings and spool if necessary.

Remove the retaining ring (item
4-F) from the end of the sleeve (item
4-B) and remove the sleeve from the
valve body (item 4-A). Wipe clean and
inspect sleeve and o-rings for dirt, cuts
or wear. Replace the o-rings and sleeve
if necessary.

STEP #3: Re-assembly of the

pilot valve.

Generously lubricate outside
diameter of the sleeve and o-rings.
Then carefully insert sleeve into valve
body. Take CAUTION when inserting
sleeve, not to shear any o-rings. Install
retaining ring to sleeve. Generously
lubricate outside diameter of spool and
o-rings. Then carefully insert spool into
sleeve. Take CAUTION when inserting
spool, not to shear any o-rings. Use
BP-LS-EP-2 multipurpose grease,
or equivalent.

STEP #4: Re-install the pilot valve

assembly into the intermediate.

Be careful to align the ends of the
pilot valve stem between the plunger
pins when inserting the pilot valve into
the cavity of the intermediate.

Re-install the gasket, air inlet cap
and capscrews. Connect the air supply
to the pump. The pump is now ready
for operation.

for inspection and service.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 24

PUMPING HAZARDOUS LIQUIDS

When a diaphragm fails, the pumped
liquid or fumes enter the air end of the
pump. Fumes are exhausted into
the surrounding environment. When
pumping hazardous or toxic materials,
the exhaust air 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 air exhaust must be
piped above the liquid level. See
illustration #2 at right. Piping used for
the air exhaust must not be smaller
than 1" (2.54 cm) diameter. Reducing
the pipe size will restrict air ow and
reduce pump performance. 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. See illustration #3 at right.

NOTE: The manufacturer recommends
installing a exible hose or connection
between the pump and any rigid
plumbing. This reduces stresses on
the molded plastic threads of the air
exhaust port. Failure to do so may
result in damage to the air distribution
valve body.

Any piping or hose connected to
the pump’s air exhaust port must be
physically supported. Failure to support
these connections could also result
in damage to the air distribution
valve body.

Exhaust Conversion Drawing

CONVERTED EXHAUST ILLUSTRATION

PUMP INSTALLATION AREA

1" DIAMETER AIR

EXHAUST PIPING

Illustration #1

LIQUID
LEVEL

SUCTION

LINE

SAFE AIR
EXHAUST
DISPOSAL
AREA

MUFFLER

MUFFLER

1" DIAMETER AIR
EXHAUST PIPING

CONVERTING THE PUMP FOR

Illustration #2

PIPING THE EXHAUST AIR

The following steps are necessary
to convert the pump to pipe the exhaust
air away from the pump.

Use a #8 Torx or at screwdriver

MUFFLER

to remove the six self-tapping screws
(item 1-J).

Remove the mufer cap and mufer
(items 1-D and 1-F). The 1" NPT

LIQUID
LEVEL

1" DIAMETER AIR
EXHAUST PIPING

molded threads in the air distribution
valve body (item 1-B).

Piping or hose may now be installed.

IMPORTANT INSTALLATION

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 25

Illustration #3

SUCTION

LINE

MODULAR CHECK VALVE
SERVICING

Before servicing the check valves,
rst shut off the suction line and then
the discharge line to the pump. Next,
shut off the compressed air supply,
bleed air pressure from the pump, and
disconnect the air supply line from
the pump. Drain any remaining uid
from the pump. The pump can now be
removed for service.

To access the modular check valve,
remove the elbows (items 19 & 20 from
pump composite repair parts drawing).
Use a 9/16" wrench or socket to remove
the fasteners. Once the elbows are
removed, the modular check valves
can be seen in the cavities of the outer
chamber (items 16).

Next remove the check valve
seal (item 37). Inspect the seal for
cuts or pinched areas. Replace seal

as needed.

Disassemble the component parts of
each modular check valve. Inspect the
check valve retainer (item 32) for cuts,
abrasive wear, or embedded materials.

Replace as needed.

Inspect the check balls (items 3) for
wear, abrasion, or cuts on the spherical
surface. The check valve seats (items

38) should be inspected for cuts,
abrasive wear, or embedded material
on the surfaces of both the external
and internal chamfers. The spherical
surface of the check balls must seat
ush to the surface of the inner chamfer
on the check valve seats for the pump to
operate to peak efciency. Replace any
worn or damaged parts as necessary.

Remove the remaining check valve
seal (item 37). Inspect the seal for
cuts or pinched areas. Replace seal

as needed.

Re-assemble the modular check
valve. The seat should t snugly into
the retainer.

Place a check valve seal (item 37)
into the cavity of the outer chamber
(item 17). Make sure the chamfer side
of the seal faces out. Insert the modular
check valve into the outer chamber
with the retainer facing up. Install a
check valve seal (item 37). Make sure
the chamfer side of the seal faces the
chamfer on the check valve seat or
retainer.

The pump can now reassembled,
reconnected and returned to operation.

Modular Check Valve Drawing

6

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 26

Dual Port Option Drawing

DUAL PORTING OPTIONS

Several dual porting options are
possible. The pump can be converted
to a dual port arrangement on both
the suction and the discharge ends.
The porting can be configured to a
single suction and a dual discharge.
The porting can be changed to a dual
suction and a single discharge.

The above changes are possible
because the porting flange of the
elbows are designed to mate with a 2"
ANSI Flange Connection.

DUAL PORTING OF BOTH SUCTION
AND DISCHARGE ENDS OF THE
PUMP

Converting the pump from the
standard single suction and discharge
porting conguration to dual porting
at each end is easy. Simply remove
the manifold seals and manifolds from
the pump.

The discharge elbows can be rotated
in 90°increments and the suction elbows
can be rotated in 180° increments
(see optional positioning in the Dual
Porting Drawing).

SINGLE PORTING OF THE SUCTION
AND DUAL PORTING OF THE PUMP
DISCHARGE

To convert the pump from the
standard single suction and single
discharge porting conguration to a dual
discharge porting arrangement remove
the only the discharge manifolds and
manifold seals. Position the discharge
elbows in the desired direction at
90° increments. (See arrows and
optional positioning in the Dual
Porting Drawing.)

DUAL PORTING OF THE SUCTION
AND SINGLE PORTING OF THE
PUMP DISCHARGE

To convert the pump from the
standard single suction and single
discharge porting configuration to
a dual suction porting arrangement
remove the only the suction (bottom)
manifolds and manifold seals.

Position the suction elbows in the
desired direction at 180° increments.
(See arrows and optional positioning
in the Dual Porting Drawing.)

2" ANSI STYLE FLANGE
CONNECTION FOUR Ø.78
HOLES ON A Ø4.75 BOLT CIRCLE

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 27

Leak Detection Options Drawing

LEAK DETECTION OPTION (ELECTRONIC)

Follow instructions found elsewhere in this manual, “Filling the

Spill Prevention Chambers” when installing leak detectors.

Electronic Leak Detector Installation

Kit 032-037-000 100VAC 50Hz
or 110-120VAC 50/60Hz

or 220-240VAC 50/60Hz

Kit 032-045-000 12-32VDC

To install electronic leak detectors, remove the bottom ¼" NPT
pipe plug on the visual sight tube (item 50). Insert leak detector
into the ¼" pipe tee (item 53).

LEAK DETECTION OPTION (MECHANICAL)

Follow instructions found elsewhere in this manual, “Filling the
Spill Containment Chambers” when installing leak detectors.

Mechanical Leak Detector Installation

Kit 031-023-110

To install mechanical leak detectors, remove the bottom ¼" NPT
pipe plug on the visual sight tube (item 50). Insert leak detector
into the ¼" pipe tee (item 53).

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 28

Pulse Output Kit Drawing

PULSE OUTPUT KIT OPTION

This pump can be tted with a Pulse Output Kit. This converts the mechanical
strokes of the pump to an electrical signal which interfaces with the Stroke Counter/
Batch Controller or user control devices such as a PLC.

The Pulse Output Kits mount directly onto the Mufer Cap on the Air Distribution
Valve Assembly or onto the air valve and senses each stroke of the main spool.

Consult the factory for further information and availability.

Pulse Output Kits

475-244-001 10-30 VDC

475-244-002 110/220 VAC

475-244-003 10-30VDC, 110VAC and 220 VAC

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 29

Optional Mufer Congurations, Drawing

I M2 c T5
II 2GD T5

OPTION 0

530-028-550 Encapsulated Mufer uses (1)
Cap and (4) 710-015-115 Self Tapping Screw
to hold it in place.

OPTION 1

530-027-000 Sound Dampening Mufer
screws directly into the Air Valve body.
This mufer is equipped with a porous
plastic element.

OPTION 2

530-010-000 Mesh Mufer screws
directly into the Air Valve Body. This
mufer is equipped with a metal element.

OPTION 6

530-033-000 Metal Mufer screws
directly into the Air Body.

ATEX Compliant

Option 0

Option 6

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 30

Option 1 and 2

Grounding The Pump

To be fully groundable, the pumps must be ATEX
Compliant. Refer to pump data sheet for ordering.

One eyelet end is fastened to the pump hardware.

The other end is installed to a true earth ground.

This optional 8 foot long (244 centimeters) Ground Strap
(920-025-000) 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.

WARNING 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.

m20nmdl3sm-rev0713 Model M20 Non-Metallic Page 31

Declaration of Conformity

Manufacturer: Warren Rupp, Inc.®, 800 N. Main Street, P.O. Box 1568,

Mansfield, Ohio, 44901-1568 USA

certifies that Air-Operated Double Diaphragm Pump Series:
M Non-Metallic, M Metallic, and 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.

October 20, 2005

Signature of authorized person

Date of issue

David Roseberry
Printed name of authorized person

Revision Level: F

Engineering Manager
Title

August 23, 2012
Date of revision

EC Declaration of Conformity

In accordance with ATEX Directive 94/9/EC,

Equipment intended for use in potentially explosive environments.

Manufacturer: Warren Rupp, Inc.

800 North Main Street, P.O. Box 1568, Mansfield, OH 44901-1568 USA

EN 60079-25: 2004

For pumps equipped with Pulse Output ATEX Option
KEMA Quality B.V. (0344)

AODD Pumps and Surge Suppressors

For Type Examination Designations, see page 2 (back)

AODD (Air-Operated Double Diaphragm) Pumps

EC Type Examination Certificate No. Pumps: KEMA 09ATEX0071 X
KEMA Quality B.V.
Utrechtseweg 310
6812 AR Arnhem, The Netherlands

DATE/APPROVAL/TITLE:
27 MAY 2010

®

, A Unit of IDEX Corportion

Applicable Standard:

EN13463-1: 2001,
EN13463-5: 2003

David Roseberry, Engineering Manager

EC Declaration of Conformity

ATEX Summary of Markings

Type Marking Listed In

Pump types, M05, M1F, M15,
M20 and M30 provided with the
pulse output option

Pump types, M05, M1F, M15
M20 and M30 provided with the
integral solenoid option

Pump types, MPB1/4, M05,
M1F, M15, M20, M30, MSB1,
MHDF1, MHDF2 without the
above listed options, no
aluminum parts

Pump types,
MPB1/4, M05, M1F, M15,
M20, M30, MSB1, MHDF1,
MHDF2, MHDF3

MT Series Surge Suppressors II 2 G T5

EC Type Certificate No. Pumps: KEMA 09ATEX0071 X
Type Certificate No. Pumps: KEMA 09ATEX0072 X
Type Certificate No. Suppressors: KEMA 09ATEX0073

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

Ex c iaD 20 IP67 T100oC

II 2 G EEx m c II T5
II 3/2 G EEx m c II T5
II 2 D c IP65 T100

II 1 G c T5
II 3/1 G c T5
II 1 D c T100
I M1 c
I M2 c

II 2 G c T5
II 3/2 G c T5
II 2 D c T100

II 3/2 G T5
II 2 D T100

Non-Conductive

Fluids

KEMA 09ATEX0071 X
CE 0344

KEMA 09ATEX0071 X

o

C

o

C

o

C

o

C

CE 0344

KEMA 09ATEX0071 X
KEMA 09ATEX0072 X
CE 0344

KEMA 09ATEX0072 X
CE

KEMA 09ATEX0073
CE

KEMA 09ATEX0071 X
KEMA 09ATEX0071 X
KEMA 09ATEX0071 X

KEMA 09ATEX0071 X
KEMA 09ATEX0071 X
KEMA 09ATEX0071 X

KEMA 09ATEX0071 X
KEMA 09ATEX0071 X
KEMA 09ATEX0071 X
KEMA 09ATEX0071 X
KEMA 09ATEX0072 X

KEMA 09ATEX0072 X
KEMA 09ATEX0072 X
KEMA 09ATEX0072 X

KEMA 09ATEX0073
KEMA 09ATEX0073
KEMA 09ATEX0073

No
Yes
Yes

No
Yes
Yes

No
Yes
Yes

No
Yes

No
Yes
Yes

No
Yes
Yes