SANDPIPER M1F User Manual

SERVICE & OPERATING MANUAL

See page 2
for ATEX ratings.

Original Instructions

Model M1F Metallic Design Level 1

Table of Contents

See pages 2, 30 and 31
for ATEX ratings.

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

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

Performance Curve ............................................................................................... 3

Dimensions ........................................................................................................... 4

Metric Dimensions ................................................................................................ 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

Troubleshooting ..................................................................................................... 8

Warranty ................................................................................................................ 8

Recycling ............................................................................................................... 9

Important Safety Information ................................................................................. 9

Material Codes .................................................................................................... 10

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

Available Service and Conversion Kits ................................................................ 12

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

Air Valve Drawing, Parts List, Service Instructions (Integral Mufer) ..................14

Air Valve Drawing, Parts List, Service Instructions .............................................. 15

Air Valve Drawing, Parts List, Service Instructions (Cast Iron Centers Only) ...... 16

Air Valve Drawing, Parts List, Service Instructions (Non-ATEX Only) ................. 17

Air Valve w/Stroke Indicator Drawing, Parts List, Service Instructions ................ 18

Solenoid Shifted Air Valve Drawing ..................................................................... 19

Solenoid Shifted Air Valve Parts List ................................................................... 19

Solenoid Shifted Air Valve Option ........................................................................ 20

Diaphragm Service Drawing, with Overlay .......................................................... 21

Diaphragm Service Drawing, Non-Overlay.......................................................... 21

Diaphragm Servicing ........................................................................................... 22

Overlay Diaphragm Servicing ............................................................................. 22

Pilot Valve Servicing, Assembly Drawing & Parts List ......................................... 23

Actuator Plunger Servicing .................................................................................. 24

Check Valve Servicing .........................................................................................25

Check Valve Drawing ..........................................................................................25

Optional Mufer Congurations ........................................................................... 26

Optional Mufer Conguration Drawing............................................................... 26

Pumping Hazardous Liquids................................................................................ 27

Converting Pump for Piping Exhaust Air .............................................................27

Converted Exhaust Illustration............................................................................. 27

Pulse Output Kit Drawing .................................................................................... 28

Pulse Output Kit Options ..................................................................................... 28

Grounding The Pump .......................................................................................... 29

CE Declaration of Conformity Machinery ............................................................ 30

CE Declaration of Conformity ATEX .................................................................... 31

Explanation of ATEX Certications ...................................................................... 32

m1fmdl1sm-rev0214

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 2014 Warren Rupp, Inc. All rights reserved.

See page 2
for ATEX ratings.

See pages 2, 30 and 31
for ATEX ratings.

Quality System

ISO9001 Certied

Environmental

Management System

ISO14001 Certied

M1F Metallic

Design Level 1
Ball Valve

Air-Operated
Double Diaphragm Pump

Air Inlet Side View

INTAKE/DISCHARGE PIPE SIZE

1" NPT (internal)

1" BSP Tapered (internal)

CAPACITY

0 to 45 gallons per minute
(0 to 170 liters per minute)

CAUTION! Operating temperature limitations are as follows:

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.

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

Neoprene: All purpose. Resistant to vegetable oil. 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.

Santoprene®:: Injection molded thermoplastic elastomer with no fabric layer. Long mechanical ex life.

Excellent abrasion resistance.

Virgin 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.

Polypropylene:

Conductive HDPE:

For specic applications, always consult the MARATHON Chemical Resistance Chart

MARATHON® pumps are designed to be powered only by compressed air.

Air Exhaust Side View

AIR VALVE

No-lube, no-stall

design

SOLIDS-HANDLING

Up to .25 in. (6mm)

ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA

HEADS UP TO

125 psi or 289 ft. of water
(8.6 Kg/cm2 or 86 meters)

Operating Temperatures

190° F

88° C

280° F

138° C

200° F

93° C

275° F

135° C

220° F

104° C

350° F

177° C

180° F

82° C

180° F

82° C

DISPLACEMENT/STROKE

.11 Gallon / .42 liter

-10° F

-23° C

-40° F

-40° C

-10° F

-23° C

-40° F

-40° C

-35° F

-37° C

-40° F

-40° C

-35° F

-37° C

32° F

0° C

M1fmdl1sm-rev0214 Model M1F Metallic Page 1

Explanation of Pump Nomenclature, M1F Metallic · Design Level 1· Ball Valve

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

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)

M1FB1ABWANS000. M 1F B 1 A B W A N S 0 00. 28 (13)
M1FB1AIWANS000. M 1F B 1 A I W A N S 0 00. 28 (13)
M1FB1AGTANS000. M 1F B 1 A G T A N S 0 00. 28 (13)
M1FB1A1WANS000. M 1F B 1 A 1 W A N S 0 00. 28 (13)
M1FB1ACTANS000. M 1F B 1 A C T A N S 0 00. 28 (13)
M1FB1IBWANS000. M 1F B 1 I B W A N S 0 00. 46 (21)
M1FB1INWANS000. M 1F B 1 I N W A N S 0 00. 46 (21)
M1FB1I1WANS000. M 1F B 1 I 1 W A N S 0 00. 46 (21)
M1FB1ICTANS000. M 1F B 1 I C T A N S 0 00. 46 (21)
M1FB1IIWANS000. M 1F B 1 I I W A N S 0 00. 46 (21)

M1FB1SGTANS000. M 1F B 1 S G T A N S 0 00. 43 (20)

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

Pump Brand

M= MARATHON

Pump Size

1F=1"

Check Valve Type

B= Ball

Design Level

1= Design Level

Wetted Material

A= Aluminum
I = Cast Iron
S= Stainless Steel
H= Alloy C

®

Diaphragm Check Valve
Materials

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

Check Valve Seat

A= Aluminum
C= Carbon Steel
S= Stainless Steel
T= PTFE
W= UHMW

Non-Wetted Material Options

A= Painted Aluminum
I = Cast Iron
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

Pump Style

S= Standard

Pump Options

0= None
1= Sound Dampening Mufer
2= Mesh Mufer
3= High temperature Air
Valve w/Encapsulated
Mufer
4= High temperature Air
Valve w/Sound
Dampening Mufer
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
E4.= Solenoid Kit with 110VAC Coil
E5.= Solenoid Kit with 110VAC
Explosion-Proof Coil
E6.= Solenoid Kit with 220VAC Coil

Kit Options continued

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

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

Models equipped with Wetted Options I,
S or H, Non-Wetted Options I or Z Pump
Options 6 or 7, and Kit Option 0.
Note: See page 31 for 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 page 31 for ATEX Explanation of

Type Examination Certicate

(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 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.

M1fmdl1sm-rev0214 Model M1F Metallic Page 2

Performance Curve, M1F Metallic Design Level 1

MODEL S1F 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

7

6

5

4

HEAD

3

2

1

0

PSI

100

5(8.5)

100 PSI (6.8 Bar)

10(17)

15(25.5)

80

80 PSI (5.44 Bar)

60

60 PSI (4.08 Bar)

40

40 PSI (2.72 Bar)

20

20 PSI (1.36 Bar) Air Inlet Pressure

20(34)

25(42.5)

0

0 5 10 15 20

30(51)

35(59.5)

25 30 35 40 45

U.S. Gallons per minute

40(68)

50

NPSHR

FEET

9.1

30

7.6

25

6

20

4.5

15

3

10

1.5

5

METERS

160140

180120100806040200

Liters per minute

CAPACITY

M1fmdl1sm-rev0214 Model M1F Metallic Page 3

Dimensions: M1F Metallic

1/2" NPT

Dimensions in Inches
Dimensional Tolerance: ±1/8"

Discharge Port
1" NPT

Suction Port

FRONT VIEW

Integral Muffler
1" NPT Exhaust Port
For Optional Muffler
Styles Or Piping Exhaust
Air In Submerged
Applications.

BOTTOM VIEW

1" NPT

Dimension

Encapsulated

Mufer

Pulse Output

Kit

Aluminum

& Cast Iron

Stainless

Steel

Mesh

Mufer

Sound

Dampening

Mufer

Pump Shown
With 530-028-550
Integral Muffler

Both Suction And

SIDE VIEW

Discharge Ports Are
Available With
1" BSP Tapered Connection

A

10 3/8

10 3/8

13

13

B C D E F

11 27/32 1 3/32 5/16 6 7/32 12 23/32

11 31/32 1 7/32 7/16 6 11/32 12 27/32

Air Inlet

M1fmdl1sm-rev0214 Model M1F Metallic Page 4

Metal

Mufer

12 1/2

Pump Shown
With 530-028-550
Integral Muffler

Both Suction And
Discharge Ports Are
Available With
1" BSP Tapered Connection

Discharge Port
1" NPT

Suction Port

1" NPT

Air Inlet

1/2" NPT

FRONT VIEW

BOTTOM VIEW

SIDE VIEW

Integral Muffler
1" NPT Exhaust Port
For Optional Muffler
Styles Or Piping Exhaust
Air In Submerged
Applications

Metric Dimensions: M1F Metallic

Dimensions in Millimeters
Dimensional Tolerance: ± 3mm

Dimension

A

B C D E F

Encapsulated

M1fmdl1sm-rev0214 Model M1F Metallic Page 5

Mufer

Pulse Output

Kit

Aluminum

& Cast Iron

Stainless

Steel

Mesh

Mufer

Sound

Dampening

Mufer

Metal

Mufer

264

264

301 28 8 158 323

304 31 11 161 326

330

330

319

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 MARATHON surge
suppressor is recommended to further
reduce pulsation in ow.

AIR SUPPLY

Air supply pressure cannot exceed
125 psi (8.6 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.

M1fmdl1sm-rev0214 Model M1F Metallic Page 6

CAUTION

The ai r exhaust shou ld be
piped t o an area fo r saf e
disposition of the product
bei ng pumped, in the event
of a diaphragm failur e.

TYPICAL INSTALLATION GUIDE

For Metallic Pumps

Air Inlet

Line

Available from
MARATHON

1

MTA1 or MTA25 Surge Suppressor

2

020-050-000 Filter/Regulator

3

020-050-001 Lubricator

M1fmdl1sm-rev0214 Model M1F Metallic Page 7

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.

What to Check: Undersized suction
line.
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 MARATHON 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 Group
before performing this procedure. Any
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.

M1fmdl1sm-rev0214 Model M1F Metallic Page 8

Recycling

Many components of MARATHON®
Metallic AODD pumps are made of
recyclable materials (see chart on
page 10 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 28)

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.

M1fmdl1sm-rev0214 Model M1F Metallic Page 9