IWAKI PUMPS MX Series, MX-400, MX-401, MX-250, MX-505 Instruction Manual

IWAKI Magnetic Drive Pump
MX Series (MX-250/-505)

Instruction Manual

Read this manual before use of product

(Asia Edition)

Thank you for selecting an Iwaki MX Series 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 ..................................................7

2. Product outline .................................................................7

3. Model code .......................................................................8

4. Specification .....................................................................9

5. Dimension ......................................................................10

6. Part names ......................................................................11

7. Overview ........................................................................15

Installation 1. Before installation ..........................................................17

2. Installation/Pipework/Wiring ........................................19

Operation 1. Operational precautions..................................................26

2. Before operation .............................................................27

3. Operation ........................................................................27

Maintenance 1. Troubleshooting ..............................................................30

2. Maintenance & Inspection .............................................31

3. Spare & Wear parts ........................................................34

4. Dismantlement & Assembly ..........................................35

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.

Impor tant instr uctions

For the Safe and

Correc t Hand ling of the Pump

● "Safety Inst r uct ion" section deals with import a nt details about handling of the product. Before
use, read this section carefully for the prevention of personal injury or propert y dam age.

● Obser ve the instructions accompanied with "WAR N I NG" or "CAU TION" in this manual. These
instr uct ions are very impor t ant for protecting users from da ngerous situations.

● T he symbols on this inst r uction manual have the following meanings:

Nonobservance or misapplication of “ Warning” sec-

WARNING

tions could lead to a serious accident which may
result in death.

Nonobservance or misapplication of “Caution” sec-

CAUTION

tions could lead to personal injury or proper t y dam ­age.

Types of Symbols

Indicates that “Warn ing” or “Caution” must be exercised. Inside this triangle, a con­crete 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 import ant action or procedure which must be performed or carr ied out
without fail. Failure t o follow the instructions herein can lead to malfu nction 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.

- 1 -

Safety instructions

Prohibited

No Remodeling

WARNING

● Turn off power before work

Be sure to turn off all the related power supplies prior to any inspection/
maintenance and installation works. Working on the pump with power ON,
any rotating part may catch the hand, finger, hair, or clothes, and it may
result in serious injury. Make sure no one turns on power by mistake while
working on the pump, otherwise it may result in a serious accident. If your
working area is noisy or dark, let other people know about the situation by
displaying a notice such as “POWER OFF (Maintenance)” near a power
switch.

● Stop operation

Turning off power

If you notice any abnormal or dangerous conditions, suspend operation im­mediately and inspect/solve problems.

● Do not use the pump in any condition other than its intended purpose

The use of the pump in any conditions other than those clearly specied

may result in failure or injury. Use this product in specied conditions only.

● Do not modify the pump

Alterations to the pump carries a high degree of risk. It is not the manufac­turer’s responsibility for any failure or injury resulting from alterations to the
pump.

● Wear protective clothing

Always wear protective clothing such as an eye protection, chemical re­sistant gloves, a mask and a face shield during disassembly, assembly or
maintenance work. The specic solution will dictate the degree of protec­tion. Refer to MSDS precautions from the solution supplier.

Wear protective

gear

- 2 -

Safety instructions

Prohibited

Fire ban

WARNING

● Use strong ropes (chains) for lifting up the pump

Serious injury may result if lifting ropes (chains) break. Check lifting ropes
(chains) are strong enough before use. Observe the maximum weight.

● Use eye bolts

Chain the pu mp via eye bolts to lift it up. Otherwise the pump may acciden­tally fall down, resulting in serious injury.

● 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
serious injury.

● When handling dangerous liquid

For handling harmful liquids as mentioned below, be sure to conduct daily
inspection and maintenance for the prevention of liquid leakage. Otherwise
personal injury, explosion or fire may result.

1. Explosive or flammable liquid

2. Corrosive or stimulus toxic liquid

3. Health hazardous liquid

● Do not damage a power cable

Do not pull, knot, or crush the power cable. Damage to the power cable

could lead to a re or electrical shock if cut or broken.

● Do not operate the pump in a flammable atmosphere

Do not place explosive or ammable material near the pump.

Prohibited

Prohibited

● Do not catch the finger

Magnetic force of the pump is powerful. Take care not to catch the finger in
the bracket.

- 3 -

Safety instructions

Prohibited

CAUTION

● Qualified personnel only

The pump should be handled or operated by qualified personnel with a full
understanding of the pump. Any person not familiar with the product should
not take part in the operation or management of the pump.

● Use specified power only

Do not apply power other than that specied on the nameplate. Otherwise,

failure or re may result. Ensure the pump is properly grounded.

● Do not run pump dry

Do 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.

● Ventilation

Fumes or vapours can be hazardous with certain solutions. Ensure proper
ventilation at the operation site.

● Do not install/store the pump:

• In a ammable/explosive/corrosive atmosphere.

• In a dusty/humid environment.

• Where ambient temperature can exceed 0-40°C.

• Under mechanical vibrations.

• In direct sunlight or wind & rain.

● Spill precautions

Ensure protection and containment of solution in the event of plumbing or
pump damage (secondary containment).

Prohibited

● Do not stand on the pump

Do not use the pump as a platform. Injury or damage may result when the
pump turns over.

- 4 -

Prohibited

Safety instructions

CAUTION

● Do not touch the pump or pipe with bare hands

Risk of burning. The surface temperature of the pump or pipe rises high
along with liquid temperature in or right after operation.

● Grounding

Risk of electric shock! Always properly ground the pump. Conform to local
electric codes.

● Install a GFCI (earth leakage breaker)

An electrical failure of the pump may adversely affect other devices on the
same line. Purchase and install an earth leakage breaker separately.

● Starting

The pump doesn’t have an ON-OFF switch. The pump starts as a power
cable is plugged in.

● Foreign 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.

● Static electricity

Caution

Grounding

Electrical shock

When low electric conductivity liquids such as ultra-pure water and fluor

TM

inactive liquid (e.g. Fluorinert

) are handled, static electricity may gener­ate in the pump and may cause static discharge. Take countermeasures to
remove static electricity.

● Preventative maintenance
Follow instructions in this manual for replacement of wear parts. Do not
disassemble the pump beyond the extent of the instructions.

● Do not use a damaged pump
Use of a damaged pump could lead to an electric shock or death.

● Disposal of a used pump
Dispose of any used or damaged pump in accordance with local rules
and regulations. If necessary, consult a licensed industrial waste disposal
company.

Prohibited

- 5 -

Outline

1. Unpacking & Inspection ........................7

2. Product outline ......................................7

3. Model code ...........................................8

4. Specification .........................................9

5. Dimension ...........................................10

6. Part names ......................................... 11

7. Overview .............................................15

- 6 -

1. Unpacking & Inspection

Outline

On unpacking the product, check the following

points. If you find any problems, contact your
nearest distributor.

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.

2. Product outline

The MX is a magnetic drive centrifugal pump capable of handling various liquid.

■ Principle of operation

The magnetic force between drive and driven
magnets rotates the impeller in the pump chamber,
where a liquid is transferred from the inlet to outlet.

- 7 -

Outline

3. Model code

MX - 400 C V 6 C - 2 S

a b c d e f g

a. Pump I.D. and motor output

Code Pump I.D. (Inlet × Outlet) Motor output

250

251 0.75kW

400

401 0.75kW

402/402H

403/403H 2.2kW

505 65A × 50A 3.7kW

*The motor is 2-pole, 3-phase.

b. Sliding parts

C: Carbon bearing × Alumina ceramic spindle
R: Filled PTFE bearing × Alumina ceramic spindle
A: Alumina ceramic bearing × Alumina ceramic spindle (available for MX-250/-251/-400/-401)

25A × 25A

40A × 40A

50A × 40A

0.37kW

0.37kW

1.5kW

c. O ring materials

V: FKM
E: EPDM
A: Aflas

d. Impellers

3, 5, 7 : 50Hz

4, 6 : 60Hz

*The code “7” is used with an IE2 high efficiency motor. Applicable models are the MX-250/-251/-400/-401.

*The code “3“ and “4“ are used with an IE3 premium efficiency motor. An applicable model is the MX-401.

e. Motors

No code: Totally-enclosed-fan-cooled motor for indoor use
C: Totally-enclosed-fan-cooled motor for outdoor use
A: Increased safety motor

f. Motor power voltage

2: 200/220V 2: 200/220V 2: 200/220V
4: 380/400/415V (50Hz) or 440V(60Hz) 6: 380V 6: 380V
9: 460V 7: 400/440V 7: 400/440V

®

MX-250/-251/-400/-401

(3-phase standard motor)

MX-402(H)/-403(H)

(3-phase IEC motor)

8: 415V 9: 460V
9: 460V

(3-phase IEC motor)

MX-505

g. Special version

S : Special version

- 8 -

Outline

4. Specification

Model Inlet × Outlet S.G. limit

MX-250 25×25 1.0 0.37kW

MX-251 25×25 1.0 0.75kW

MX-400 40×40 1.2 0.37kW
MX- 401 40×40 1.2 0.75kW
MX-402 50×40 1.2 1.5kW

MX-402H 50×40 1.0 1.5kW

MX-403 50×40 1.2 2.2kW

MX-403H 50×40 1.0 2.2kW

MX-505 65×50 1.2 3.7kW

■ Pump weight

Model MX-250/-400 MX-251/-401 MX-402/-402H MX-403/-403H MX-505

MX 13.5kg 18.5kg 30.5kg 33kg 53.5kg

MX (IE3) - 22kg 38kg 43kg 64kg

Motor

output

- 9 -

5. Dimension

MX-250/-251/-400/-401/-402(H)/-403(H)

Outline

MX-505

f

H

d e

c

L

g

f

W

b

a

b

4×k

H

d e

c

L

g

a

W

4×k

Model W H L a b c d e f g k
MX-250 160 247.5 411 130 65 130 115 140 90 163 12
MX-251 160 247.5 444 130 65 130 115 140 90 171 12

MX-251 (IE3) 160 247.5 446 130 65 130 115 140 90 171 12

MX-400 140 219 411 110 54 98 95 130 87 150 12
MX- 401 160 249 457 130 72 130 115 140 103 184 12

MX-401 (IE3) 160 249 459 130 72 130 115 140 103 184 12

MX-402(H)/-403(H) 260 274 516 208 80 200 120 160 89 157 14×36

MX-402(H)/-403(H)(IE3) 260 274 514/543 208 80 200 120 160 89 157 14×36

MX-505 180 330 601 140 96 220 150 180 95 175 14

NOTE: Actual dimensions may differ from the above information depending on model identification codes.

- 10 -

6. Part names

MX-250/-251/-401

13

Outline

9

5

2

19

20

8

21

23

13

24

11

24

1

12

3

22

18

9

27

15

16

No. Names Q'ty

Materials Remarks Materials Remarks Materials Remarks

MX-250 MX-251 MX-401

1 Front casing 1 GFRPP GFRPP GFRPP
2 Rear casing 1 GFRPP GFRPP GFRPP
3 Impeller 1 GFRPP GFRPP GFRPP

5 Drive magnet unit 1
8 Magnet capsule 1

Ferrite mag.

+aluminum alloy

Ferrite mag.

+PP

Ferrite mag.

+FCD450

Ferrite mag.

+PP

Ferrite mag.

+FCD450

Ferrite mag.

+PP

9 Hex socket set screw 2 Steel M8 × 10 Steel M8 × 10 Steel M8 × 10

11 Hex soch head bolt 6

12 Hex soch head bolt 2

Stainless

steel

Stainless

steel

M8 × 35,

with PW, SW

M8 × 50,

with PW, SW

Stainless

steel

Stainless

steel

M8 × 35,

with PW, SW

M8 × 50,

with PW, SW

Stainless

steel

Stainless

steel

M8 × 40,

with PW, SW

M8 × 50,

with PW, SW

13 Flange 2 GFRPP GFRPP GFRPP
15 Motor 1
16 Base 1 GFRPP GFRPP GFRPP

17 Adapter 1 FC200 FC200 FC200

No. Names Q'ty

CV/CE RV/RE AV/AE Remarks Remarks

Materials MX-250/-251 MX-401

18 Liner ring 1 Alumina ceramics 99.5%
19 Rear thrust 1 CFRPPS
20 Spindle 1 Alumina ceramics 99.5%

21 Bearing 1

High density

carbon

Filled PTFE

Alumina ce-

ramics
22 Mouth ring 1 Filled PTFE
23 O ring 1 V: FKM E: EPDM JIS B 2401 G165 JIS B 2401 G165
24 O ring 2 V: FKM E: EPDM JIS B 2401 G25 AS568-129

27 Hex soch head bolt 4 Steel

M8 × 20,

with PW, SW

M8 × 20,

with PW, SW

- 11 -

MX-400

13

Outline

15

9

5

2

19

20

8

23

21

13

24

11

24

3

22

18

27

9

16

1

12

No. Names Q'ty Materials Remarks No. Names Q'ty

1 Front casing 1 GFRPP 18 Liner ring 1

CV/CE RV/RE AV/AE

Materials Remarks

Alumina ceramics 99.5%
2 Rear casing 1 GFRPP 19 Rear thrust 1 CFRPPS
3 Impeller 1 GFRPP 20 Spindle 1

Drive mag-

5

net unit

Magnet cap-

8

Hex socket

9

set screw

Hex soch

11

head bolt
Hex soch

12

head bolt

sule

Ferrite magnet

1

+aluminum alloy
Ferrite magnet

1

+PP

21 Bearing 1 Carbon

22 Mouth ring 1 Filled PTFE

2 Steel M8 × 10 23 O ring 1 V: FKM E: EPDM
4
2

Stainless

steel

Stainless

steel

M8 × 30,

with PW, SW

M8 × 40,

with PW, SW

24 O ring 2 V: FKM E: EPDM

Hex soch

27

head bolt

Alumina ceramics 99.5%

Filled
PTFE

4 Steel

13 Flange 2 GFRPP
15 Motor 1

16 Base 1 GFRPP

17 Adapter 1 FC 200

Alumina

ceramics

99%

JIS B 2401

G135

AS568-129

M8 × 20,

with PW, SW

- 12 -