IWAKI PUMPS SMX-F Series User manual

Read this manual before use of product
IWAKI
Self-priming Magnetic Drive Pump
SMX-F Series
Instruction Manual

Thank you for selecting an Iwaki SMX-F Series Self-priming Magnetic Drive Pump. This
instruction manual deals with "Safety instructions", "Outline", "Installation", "Operation"
and "Maintenance" sections. Please read through this manual carefully to ensure the optimum
performance, safety and service of your pump.
Contents
Important instructions ························································ 1
Safety instructions ····························································· 2
Outline 1. Unpacking & Inspection ..................................................6
2. Product outline.................................................................6
3. Model code.......................................................................7
4. Part names........................................................................8
5.Overview
........................................................................11
Installation 1. Before installation..........................................................13
2. Installation location........................................................13
3.Installation
......................................................................14
4.Pipework
.........................................................................15
5.Wiring
............................................................................18
Operation 1. Operational precautions..................................................20
2. Before operation.............................................................21
3. Preparation .....................................................................23
4. Operation........................................................................24
Maintenance 1. Troubleshooting..............................................................27
2. Maintenance & Inspection.............................................28
3. Spare & Wear parts........................................................32
4. Disassembly & Assembly ..............................................35
5. Mass of pumps ...............................................................47
This instruction manual should be kept on hand by the end user for
quick reference.
Contact us or your nearest dealer if you have any questions.

- 1 -
Important instructions
Nonobservance or misapplication of “Caution” sec-
tions could lead to personal injury or property dam-
age.
For the Safe and
Correct Handling of the Pump
Ɣ"Safety Instruction" section deals with important details about handling of the product. Before
use, read this section carefully for the prevention of personal injury or property damage.
ƔObserve the instructions accompanied with "WARNING" or "CAUTION" in this manual. These
instructions are very important for protecting users from dangerous situations.
ƔThe symbols on this instruction manual have the following meanings:
WARNING Nonobservance or misapplication of “Warning” sec-
tions could lead to a serious accident which may
result in death.
CAUTION
Types of Symbols
Indicates that “Warning” or “Caution” must be exercised. Inside this triangle, a con-
crete and practical image provided as a warning or caution message is depicted.
Indicates a prohibited action or procedure. Inside or near this circle, a concrete and
practical image of the activity to be avoided is depicted.
Indicates an important action or procedure which must be performed or carried out
without fail. Failure to follow the instructions herein can lead to malfunction or
damage to the pump.
Export Restrictions
Technical information contained in this instruction manual might be treated as controlled
technology in your countries, due to agreements in international regime for export control.
Please be reminded that export license/permission could be required when this manual is
provided, due to export control regulations of your country.

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ƔAccess limitation
The magnet drive pump has a pair of strong magnets. A strong magnet
field could adversely affect the persons who are assisted by electronic
devices such as the pacemaker.
ƔTurn off power before work
Be sure to turn off the power before starting maintenance/repair work.
Make sure no one turns on the power while working on the pump, other-
wise it may result in a serious accident. Let other people know about the
situation by displaying a notice such as "POWER OFF (Maintenance)" near
the power switch.
ƔWear protective clothing
Always wear protective clothing such as eye protection and protective
gloves during pipework or dismantlement of the pump.
ƔDo not remodel the pump
A remodelled pump will not be warranted. Also, we are not responsible for
personal injury or property damage due to modification.
ƔWhen handling harmful liquid
For handling harmful liquids as mentioned below, be sure to conduct daily
inspection & maintenance for the prevention of liquid/gas leakage.
1. Explosive or flammable liquid
2. Corrosive liquid
3. Health hazardous liquid
Pay extra attention. Generated gas can stay in the top of front casing.
WARNING
Turning off power
Prohibited
Wear protective
gear
No Remodeling
Safety instructions

- 3 -
Safety instructions
ƔAttention to magnetic force
A pair of strong magnets is mounted in the pump and its magnetic force may affect
magnetic disks/cards or wrist watches. Do not bring them close to the pump.
ƔRestriction on pump operator
The pump must be handled or operated by a qualified person with a full
understanding of the pump.
ƔSpecified application only
Use of the pump in any application other than those clearly specified may
result in personal injury or property damage.
Ɣ6SHFL¿HGSRZHURQO\
Do not apply any voltage other than the specified one on the motor name-
plate. Otherwise, damage or fire may result.
ƔVentilation
Poisoning may result when handling a harmful liquid. Keep good ventilation
in a work area.
ƔCountermeasure against efflux
Take protective measures against accidental chemical efflux and splash at
pump or piping breakage. Do not allow an outflow to directly soak into the
ground.
ƔDo not run pump dry (Operation without liquid)
Friction heart builds up during dry running operation and damages internal
parts. If the pump is operated with a suction side valve closed or without
priming, the pump runs dry.
ƔDo not bring the pump close to a flammable substance
Keep the pump away from a flammable substance for the prevention of fire.
ƔUnpacking
Before unpacking, check the package is not put upside down. Take care not
to be scratched by a nail or a piece of wood at unpackage.
Ɣ
Do not lift the pump by gripping any plastic parts (pump unit, flange or base)
The pump can drop unintentionally as a plastic part breaks, resulting in seri-
ous injury. Rope or chain the motor to lift up the pump horizontally.
CAUTION
Prohibited
Prohibited
Prohibited
Prohibited
Prohibited
Caution
Fire ban
Prohibited

- 4 -
Safety instructions
CAUTION
Grounding
Prohibited
Prohibited
Caution
Prohibited
ƔDo not stand on the pump
Do not use the pump as a platform. Injury or damage may result when the
pump turns over.
ƔDo not touch the pump or a pipe
Hot surface temperature. Do not touch the pump or a pipe with bare hands dur-
ing or right after hot liquid transfer. Take preventative measures against burn.
ƔEarthing
Risk of electrical shock. Do not run the pump without earthing. Secure
earth protection to reduce the risk.
ƔInstall an earth leakage breaker
Risk of electrical shock. Do not run the pump without a leakage breaker.
Secure a leakage breaker to reduce the risk.
ƔLimitations on working and storage areas
Do not install or store the pump in the following places:
1. Where ambient temperature exceeds 40°C or falls below 0°C.
2. Where ambient humidity exceeds 85%RH or falls below 35%RH.
3.
Underaflammable/explosiveatmosphereorinadustyplace(Exceptexplosion-prooftype).
4. Where the pump is exposed to wind and rain (Except outdoor-use type).
5. Where the pump is subject to vibration.
6. Under a corrosive atmosphere such as chlorine gas.
ƔForeign matter
When foreign matters enter the pump, turn off power at once and remove
them. Using the pump with foreign matters may result in failure.
ƔStatic electricity
When low electric conductivity liquids such as ultra-pure water and fluor
inactive liquid (e.g. FluorinertTM) are handled, static electricity may gener-
ate in the pump and may cause static discharge. Take countermeasures to
remove static electricity.
ƔPump disposal
Dispose of any used or damaged pump in accordance with local laws and
regulations as an incombustible (Consult a licensed industrial waste prod-
ucts disposing company.).

- 5 -
Outline
1. Unpacking & Inspection........................6
2. Product outline......................................6
3. Model code...........................................7
4. Part names...........................................8
5. Overview............................................. 11

- 6 -
Model
Head
Discharge
capacity
Frequency
Manufacturing
number
1. Unpacking & Inspection
Outline
On unpacking the product, check the following points.
If you find any problems, contact your nearest dis-
tributor.
1. Check the information on nameplate (model code,
flow rate, head and voltage) to see if the product is
delivered as per order.
2. Check for transit damage, deformation, and loose
bolts.
IWAKI
Magnetic Drive Pump
SMX-F series
Instruction Manual
Motor
Instruction manual
Instruction manual
Ŷ3ULQFLSOHRIRSHUDWLRQ
a. Running the pump after priming, liquid and gas start
to move into the pump chamber, where gas-liquid
separation occurs.
b. Once all gas is expelled, normal centrifugal pump
operation is resumed.
c. Sufficient liquid remains in the pump chamber for
subsequent self-priming once the pump is stopped.
2. Product outline
The SMX-F series pump is a self-priming centrifugal pump of a gas-liquid separation system. Fluoroplastic and
fine ceramic wet ends are capable of handling a wide range of chemicals in various applications.
Discharge
Suction
Impeller
Pump chamber
Priming cap
: Impeller rotation
: Liquid flow

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D6HULHVFRGH
60;) CFRETFE type (Wet end material)
E3XPSERUHFRGH,QOHWî2XWOHWERUH
 25A × 25A
 40A × 40A
 50A × 40A
F0RWRURXWSXWFRGH
 0.4kW
 0.75kW
 1.5kW
 2.2kW
 3.7kW
G6OLGLQJSDUWVFRGH%HDULQJ6SLQGOH/LQHUULQJ
&) High density carbon/ High purity alumina ceramic/ Alumina ceramic
5) Filled PTFE/ High purity alumina ceramic/ Alumina ceramic
.. SiC/ SiC/ SiC
H2ULQJPDWHULDO
9 FKM
( EPDM
I,PSHOOHUFRGH
79 50Hz
;<= 60Hz
J0RWRUW\SH
1RFRGH Totally-enclosed-fan-cooled motor for indoor use
& Totally-enclosed-fan-cooled motor for outdoor use
$ Increased safety motor for outdoor use
There are limitations on some combinations. Contact us for details.
60;)220&)VVC
D bF G H I J
Outline
3. Model code

- 8 -
SMX-F22Ƒ
SMX-F220
4. Part names
NO PART NAMES MATERIAL Q'TY REMARKS
CF RF KK
1FRONTCASE CFRETFE 1
2REARCASE CFRETFE 1
3REARCASING CFRETFE 1
4VOLUTESPACER CFRETFE 1
6PLATE CFRETFE 1
7CAP CFRETFE 1
8DRAINCAP CFRETFE 1
9IMPELLER CFRETFE 1
10 DRIVE MAGNET UNIT SMX-F220: FERRITE MAGNET + ALUMINIUM ALLOY SMX-F221: FERRITE MAGNET + DUCTILE IRON
SMX-F222: REAR EARTH MAGNET + DUCTILE IRON 1
11 MAGNET CAPSULE SMX-F220, 221: FERRITE MAGNET + CFRETFE
SMX-F222: REAR EARTH MAGNET + CFRETFE 1
12 HEX SOCKET SET SCREW STEEL 2
13.1 HEX SOCH HEAD BOLT STNLS STL 8 M8×40 PW,SW
13.2 HEX SOCH HEAD BOLT STNLS STL 3 M8×15
13.3 HEX SOCH HEAD BOLT STEEL 4 M8×20 PW,SW
14.1 HEX HEAD BOLT STNLS STL 4
220 type: M8×20
221, 220 type: M10×25
14.2 HEX HEAD BOLT STNLS STL 4 M10×25
15 STUD BOLT STNLS STL 5
16.1 NUT STNLS STL 13 M8
16.2 COVER CAP PE 13
17 PLAIN WASHER STNLS STL 13 M8
18.1 SPRING WASHER STNLS STL 5 M8
18.2 SPRING WASHER STNLS STL 4
220 type:M8 221, 222type:M10
18.3 SPRING WASHER STNLS STL 4 M10
18.4 SPRING WASHER STNLS STL 3 M8
19 FLANGE CFRETFE 2
20.1 REAR CASING SUPPORT DUCTILE IRON 1
20.2 BRACKET DUCTILE IRON 1
22 MOTOR
- 1
23 BASE GFRPP 1
24 LINER RING ALUMINA CERAMIC 99.5% SiC 1
26.1 REAR THRUST RING
-
ALUMINACERAMIC99.5%
- 1ONLYRFTYPE
26.2 REAR THRUST CFRETFE 1
27 SPINDLE ALUMINA CERAMIC 99.5% SiC 1
28 BEARING High density carbon Filled PTFE SiC 1
29 MOUTH RING Filled PTFE SiC 1
30 GASKET
V:FKM E:EPDM
1
31.1 O RING (REAR CASING) 1G-160
31.2 O RING (DRAIN CAP/FLANGE) 3 G-25
31.3 O RING (REAR CASE) 1P-40
31.4 O RING (CAP) 1G-30
Outline

- 9 -
SMX-F44Ƒ
SMX-F441
NO PART NAMES MATERIAL Q'TY REMARKS
CF RF KK
1FRONTCASE CFRETFE 1
2REARCASE CFRETFE 1
3REARCASING CFRETFE 1
4VOLUTESPACER CFRETFE 1
6PLATE CFRETFE 1
7CAP CFRETFE 1
8DRAINCAP CFRETFE 1
9IMPELLER CFRETFE 1
10 DRIVE MAGNET UNIT SMX-F441: FERRITE MAGNET + DUCTILE IRON
SMX-F442, 443: REAR EARTH MAGNET + DUCTILE IRON 1
11 MAGNET CAPSULE SMX-F441: FERRITE MAGNET + CFRETFE
SMX-F442, 443: REAR EARTH MAGNET + CFRETFE 1
12 HEX SOCKET SET SCREW STEEL 2
13.1 HEX SOCH HEAD BOLT STNLS STL 6 M8×45
13.2 HEX SOCH HEAD BOLT STNLS STL 3 M8×15
13.3 HEX SOCH HEAD BOLT STEEL 4 M8×20 PW,SW
13.4 HEX SOCH HEAD BOLT STNLS STL 2 M8×85
14.1 HEX HEAD BOLT STNLS STL 4 M10×25
14.2 HEX HEAD BOLT STNLS STL 4 M10×25
15 STUD BOLT STNLS STL 5
16.1 NUT STNLS STL 13 M8
16.2 COVER CAP PE 13
17 PLAIN WASHER STNLS STL 21 M8
18.1 SPRING WASHER STNLS STL 13 M8
18.2 SPRING WASHER STNLS STL 4 M10
18.3 SPRING WASHER STNLS STL 4 M10
18.4 SPRING WASHER STNLS STL 3 M8
19 FLANGE CFRETFE 2
20.1 REAR CASING SUPPORT DUCTILE IRON 1
20.2 BRACKET DUCTILE IRON 1
22 MOTOR
- 1
23 BASE GFRPP 1
24 LINER RING ALUMINA CERAMIC 99.5% SiC 1
26.1 REAR THRUST RING
-
ALUMINACERAMIC99.5%
- 1ONLYRFTYPE
26.2 REAR THRUST CFRETFE 1
27 SPINDLE ALUMINA CERAMIC 99.5% SiC 1
28 BEARING High density carbon Filled PTFE SiC 1
29 MOUTH RING Filled PTFE SiC 1
30 GASKET
V:FKM E:EPDM
1
31.1 O RING (REAR CASING) 1G-160
31.2 O RING (DRAIN CAP) 1G-25
31.3 O RING (REAR CASE) 1P-50
31.4 O RING (CAP) 1G-30
31.5 O RING (FLANGE) 2AS568-129
Outline

- 10 -
16.113.1 16.2 17.1 18.1
16.2 16.1 13.4 17.118.1
16.2 16.1 15 17.118.1
9
4
31.6
19.2
1
8
30
31.2
31.3
28
11.2
14.1 10 3
23
18.2
13.3
22 27 29 24 6.2 31.111.1
12 20.2 26 14.2 13.2
18.3 18.4
20.1 31.5 19.1 26.1 731.4
SMX-F54Ƒ
SMX-F542
NO PART NAMES MATERIAL Q'TY REMARKS
CF RF KK
1+6.2 FRONT CASE UNIT CFRETFE + SM520B EQ 1
2REARCASE CFRETFE 1
3REARCASING CFRETFE 1
4VOLUTESPACER CFRETFE 1
6.1 PLATE CFRETFE 1
7CAP CFRETFE 1
8DRAINCAP CFRETFE 1
9IMPELLER CFRETFE 1
10 DRIVE MAGNET UNIT REAR EARTH MAGNET + DUCTILE IRON 1
11.1 MAGNET CAPSULE REAR EARTH MAGNET + CFRETFE 1
11.2 LOCK PIN CFRETFE 2
12 HEX SOCKET SET SCREW STEEL 2 M8×10
13.1 HEX SOCH HEAD BOLT STNLS STL 6 M10×50
13.2 HEX SOCH HEAD BOLT STNLS STL 3 M10×16
13.3 HEX SOCH HEAD BOLT STEEL 4 M8×20 PW,SW
13.4 HEX SOCH HEAD BOLT STNLS STL 2 M10×90
14.1 HEX HEAD BOLT STNLS STL 4 M10×30
14.2 HEX HEAD BOLT STNLS STL 4 M10×25
15 STUD BOLT STNLS STL 5
16.1 NUT STNLS STL 13 M10
16.2 COVER CAP PE 13
17.1 PLAIN WASHER STNLS STL 21 M10
18.1 SPRING WASHER STNLS STL 13 M10
18.2 SPRING WASHER STNLS STL 4 M10
18.3 SPRING WASHER STNLS STL 4 M10
18.4 SPRING WASHER STNLS STL 3 M10
19.1 FLANGE CFRETFE 1 40A
19.2 FLANGE CFRETFE 1 50A
20.1 REAR CASING SUPPORT DUCTILE IRON 1
20.2 ADAPTER DUCTILE IRON 1
22 MOTOR 1.5kW, 2.2kW, 2 poles, 3 phases 1
23 BASE GFRPP 1
24 LINER RING ALUMINA CERAMIC 99.5% SiC 1
26 REAR THRUST ALUMINA CERAMIC 99.5% SiC 1
27 SPINDLE ALUMINA CERAMIC 99.5% SiC 1
28 BEARING High density carbon Filled PTFE SiC 1
29 MOUTH RING Filled PTFE SiC 1
30 GASKET
V:FKM E:EPDM
1
31.1 O RING 1G-180
31.2 O RING 1G-25
31.3 O RING 1G-55
31.4 O RING 1G-30
31.5 O RING 1AS568-129
31.6 O RING 1AS568-136
Outline

- 11 -
Outline
CAUTION
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gent for greasy dirt and then rub with a dry cloth. Do not wipe nameplates, labels or
pump body with any solvent.
Ɣ7XUQRIIPDLQSRZHUEHIRUHFOHDQLQJ%HFDUHIXOQRWWRZHWWKHPRWRUWHUPLQDOER[
and fan cover) and wiring. Otherwise electrical shock or short circuit may result.
Motor nameplate
Use the power voltage specified
on the nameplate.
(Follow an applicable local power
regulation.)
Pump unit
Prime the pump through the prim-
ing port before operation.
"Arrow" label
The arrow indicates a rotational
direction of the motor. Make
sure the motor runs in a correct
direction. Refer to page 23, "3.
Preparation".
"Do not run pump dry" label
Operating the pump without liq-
uid damages internal parts.
Pump nameplate
Operate the pump in accordance
with specifications.
Discharge port
Suction port
Base
Be sure to fix the base.
Motor (Drive unit)
The motor power is transmitted to
the pump.
Priming port
Drain cap
Loosen the drain cap to drain liquid.
(Liquid in the pump chamber can not
be removed completely. Be careful
with residual liquid.)
5. Overview

- 12 -
Installation
1. Before installation ...............................13
2. Installation location.............................13
3. Installation...........................................14
4. Pipework.............................................15
5. Wiring.................................................18

- 13 -
CAUTION
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.HHSDZLGHZRUNLQJDUHDIRUFRQYHQLHQFHLQPDLQWHQDQFH
2. Installation location
Select an installation location under the following conditions for the prevention of damage and deformation.
1. Ambient temperature between 0 - 40ºC
2. A location free from water influx at any time of an accident or casualty
3. A location provided with plumbing equipment
4. Humidity between 35 - 85%RH (Keep good ventilation.)
5. A location free from wind & rain (Except outdoor use)
6. A clean atmosphere
7. Non freezing in winter
Installation
Ɣ'RQRWGURSWKHSXPS
Do not drop, hit or drag the pump during carrying in or installation.
Ɣ9HQWLODWLRQ
Poisoning may result when handling an odorous or a harmful liquid. Keep
good ventilation in a work area.
Ɣ'RQRWKLWSODVWLFSXPSSDUWV
The front case, rear case and base are plastics. Always keep the plastic parts
free from an impact.
Ɣ.HHSWKHSXPSIUHHIURPSLSHZHLJKW
Plastic pump parts may deform or break. Always support pipework so as not
to weigh the pump.
Caution
Caution
Caution
1. Before installation
Precautions for electrical wiring and pipework

- 14 -
3. Installation
Check if installation doesn't adversely affect facility, surrounding equipment and the pump.
Install the pump according to the following instructions to ensure the optimum performance, safety and service.
If the pump unit is not anchored to the foundation and if the motor unit is heavier than the pump unit, the entire
pump leans towards to the motor. See page 47 as well.
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6HOHFWDORFDWLRQIUHHIURPWKHSRVVLELOLW\RIIORRGV
2SWLPL]HOD\RXWIRUFRQYHQLHQFHLQFDUU\LQJLQDQGRXW
,QVWDOODFKHPLFDOSURWHFWLYHEDUULHUIRUXQH[SHFWHGFKHPLFDORXWIORZ
Ŷ3XPSSRVLWLRQ
Install the pump according to the following instructions.
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NOTE: The maximum priming lift varies with liquid characteristics, specific gravity, liquid tem-
perature and suction line length. Contact us for detail.
See "4. Pipework" for more information on pipework. The pipework section describes a
basic layout and precautions.
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)RXQGDWLRQZRUNSURFHGXUH!
a. Place the pump onto a foundation. Insert liners
between the base bottom and foundation surface to
keep a mortar injection space.
b. Screw nuts in foundation bolts until three threads
appear after the nuts. And then insert the bolts in
threaded holes.
c. Place a level on the pump base to see flatness. Inject
cement mortar into the threaded holes and wait for
three days until it has hardened.
d. Remove the liners after cement mortar has hardened
and check flatness again. Then tighten the nuts on the
foundation bolts. If there is a gap insert a shim.
Installation
Shim Foundation bolt
Liner
Concrete
Base

- 15 -
Ŷ6XFWLRQOLQH
1. A suction pipe bore should be equal to the pump inlet bore (25A,40A or 50A)
If a suction pipe bore is larger than a pump inlet bore, air volume in a suction line becomes so large that the pump
can not make self-priming.
2. Suction line length should be within 4.7m in total (Horizontal and vertical pipe line)
Suction line length is the entire length from the pump inlet to the lowest pipe end, including horizontal parts. If a
suction line is longer than 4.7m, air volume becomes large in the line. This prevents the pump from sucking liquid
even if the priming lift is 4m or less (the maximum priming lift is 4m). Also, If a supply tank is too small, a liquid
level can fluctuate significantly.
3. End of a suction line
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4. A suction gate valve should be installed
In a flooded suction system, install a gate valve on a suction line for easier overhaul & inspection.
5. Make sure joints on a suction line are secure and air doesn't come in. Try to reduce the number of joints. If air is
entrained into a suction line, liquid may not be pumped or the pump may break at its worst.
Installation
4. Pipework
Foreign matters such as sand and scale may enter pipework while you are working. They may cause fatal damage to
the pump. Be sure to blow them out before operation. Also, do not apply adhesive too much or leave a screw or nut.
If pipework directory weighs on the pump, plastic parts may be deformed. Be sure to install pipe supports.
1. Discharge line
2. Shut off valve
3. Check valve
4. Pressure gauge
5. Flexible joint
6. Motor
7. Pump
8. Drain channel
9. Vacuum gauge
10. Suction pipe (Pipe diameter : D)
11. Pipe support
(12. Suction valve
(13. Drain cap
14. Pipe support
15. Suction lift (4m or less)
16. 1.5D or wider
17. 500 mm or higher
18. 1.5D or wider (500mm or wider if scale
could build up in the supply tank)
19. Supply tank
20. Screen
21. Air vent line
22. Priming water cap
23. 500mm or longer straight pipe
24. Shutoff valve
1
14
22
11
21
8
423
6
7
19
D
10
20
95
12 11
13
17
18
15
16
2
3
24

- 16 -
6. Do not make an arched line in order to prevent air from being trapped. A suction line right before the pump inlet
should be laid on a rising gradient of 1/100 toward the pump.
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1. A discharge pipe bore is related to pipe resistance
Pipe resistance rises too high to obtain an intended flow if a discharge pipe bore is too narrow. Degassing efficiency
and priming lift will be affected as well. Install a 500mm straight pipe right after the pump outlet.
2. A discharge gate valve should be installed
Install a gate valve on a discharge line not only for adjusting a discharge flow but also smooth operation, inspection
and maintenance. Make sure that a discharge or an air vent line is open during self-priming operation.
3. A check valve should be installed
When selecting a check valve, check its maximum operating pressure to make sure it tolerates a possible pressure
rise due to water hammer or backflow.
A discharge line is too long.
Actual discharge head (static discharge head plus discharge pipe resistance) is more than 15m.
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4. An air vent line should be arranged in the following cases
A horizontal discharge line is 10m or more.
A check valve is installed. Otherwise self-priming can not be performed.
Adischarge line is not at atmospheric pressure. Otherwise self-priming can not be performed.
5. A pressure gauge should be installed
Install a pressure gauge on a discharge line for monitoring operating conditions.
Installation
Good conditions Unacceptable conditions
Trapped air
Trapped air
Arched piping
Declination
Inverted arch piping
Ascension

- 17 -
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(This table is based on use of metal pipe flanges with rubber gaskets.)
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Try not to apply a heavy load to the inlet and outlet flanges. Permissible piping weight and moment to the pump are as
below.
Z
Y
X
Z
Y
X
Permissible stress to outlet flange Permissible stress to inlet flange
Load direction
Pipe dia. (mm)
25
Load
Permissible moment to outlet flange Permissible moment to inlet flange
40
0.10 0.15
0.15 0.20
0.10 0.10
0.10 0.15
kN
Fx
Fy: compression
Fy: tension
Fz
Load direction
Pipe dia. (mm)
25
Load
40, 50
0.10 0.10
0.10 0.15
0.10 0.15
kN
Fx
Fy
Fz
Load direction
Pipe dia. (mm)
25
Moment
40, 50
0.05 0.10
0.02 0.05
0.05 0.10
kN·m
Mx
My
Mz
Load direction
Pipe dia. (mm)
25
Moment
40
0.02 0.05
0.05 0.10
0.05 0.10
kN·m
Mx
My
Mz
Bolt size 7LJKWHQLQJWRUTXH1P
M16 20
Installation

- 18 -
5. Wiring
1. Electrical wiring and any work on power source must be performed by qualified persons only. We are not responsi-
ble for any injury and damage due to noncompliance with this notice. Contact us as necessary.
2. Install an electromagnetic switch according to motor specifications (voltage, capacity, etc.).
3. The pump and motor do not have protection equipment. Install an overcurrent protection or earth leakage breaker
according to motor specification.
4. Electromagnetic switches and push buttons should be installed away from the pump.
5. If the pump is used out of doors, protect switches from rainwater.
6. Outdoor use motors (Indoor use motors can not be installed out of doors).
Outdoor use motors can also be used in doors. Protect the motor and electrical power distribution equipment from
possible damage, taking account of act of providence.
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1. Check/adjust the motor as well as pump before operation.
2. Read through a motor instruction manual before operation.
3. Check the rotational direction of the motor after wiring.
4. Be sure to earth the motor.
Installation