IWAKI AMERICA MX-401, MX-400, MX-402H, MX-402, MX-403 Instruction Manual
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IWAKI AMERICA
MAGNETIC DRIVE PUMP
MX-(F)250 to 505 SERIES
INSTRUCTION MANUAL
Thank you for selecting an Iwaki America MX Series magnetic drive pump. This instruction manual
explains the correct handling, maintenance, inspection and troubleshooting procedures for your pump.
Please read through it carefully to ensure the optimum performance, safety and long service of your
pump.
TABLE OF CONTENTS
1 Unpacking and Inspection ..................................................................................................... 1
2 Model Identification Guide ................................................................................................... 2
3 Specifications......................................................................................................................... 3
4 Handling ................................................................................................................................ 8
5 Installation, Piping, and Wiring ........................................................................................... 10
6 Operation ............................................................................................................................. 15
7 Maintenance and Inspection ................................................................................................ 18
8 Troubleshooting ................................................................................................................... 21
9 Parts Description and Exploded View ................................................................................. 23
10 Disassembly and Assembly of Pump ................................................................................... 26
11 Spare Parts ........................................................................................................................... 30
12 Weights and Dimensions ..................................................................................................... 31
This product is patent pending.
180242 Rev. I March 2015
MODEL
HEAD (FT.)
CAPACITY (GPM)
IMPELLER DIAMETER
HOLLISTON, MASSACHUSETTS
www.iwakiamerica.com
Iwaki America
Mag-Drive Pump
HP Hz.
RPM
SERIAL NO.
DIRECTION OF ROTATION
DO NOT RUN PUMP DRY
MX-
1 Unpacking and Inspection
Open the package and check that the product conforms to your order. Also, check each of the following
points. For any problem or inconsistency, contact your distributor at once.
1. Check that the model number and the HP indicated on the nameplate conform to the specifications of
your order.
2. Check that all the accessories you ordered are included.
3. Check that the pump body and parts have not been accidentally damaged or that any bolts or nuts
have not been loosened in transit.
1
MX
-
250
CFV
6
1 2 3 4
2 Model Identification Guide
MX(F)250-403(H)
1 Series Symbol
MX GFRPP casing
MX-F CFRETFE casing
2 Pump Size
250 1” x 1” 0.5HP
251 1” x 1” 1.0HP
400 1.5” x 1.5” 0.75HP
401 1.5” x 1.5” 1.5HP
402H 2” x 1.5” 2.0HP
403H 2” x 1.5” 3.0HP
505 2.5" x 2" 5.0HP
3 Materials of Bearing/Spindle/O-ring
MX
CV, CE Carbon/Alumina ceramic/FKM (EPDM)
RV, RE PTFE/Alumina ceramic/FKM (EPDM)
AV,AE Alumina ceramic/Alumina ceramic/FKM (EPDM) models MX-250 to MX-401
MX-F
CFV High density carbon/High purity alumina ceramic/FKM
RFV PTFE/High purity alumina ceramic/FKM
KKV SiC/SiC/FKM
AFV High Purity Alumina Ceramic/High Purity Alumina Ceramic/FKM
4 Impeller Mark
MX
5 50Hz only
6 60 Hz only
7 larger impeller
MX-F
T,V,W 50 Hz only
X,Y,Z 60 Hz only
2
Model
Suct x Disch
Max.
Discharge
Pressure
(ft)
Max Flow
(GPM)
Specific
Gravity
Motor
output @
50/60Hz
Motor
Frame
Weight (less
motor) lbs.
MX-250
1” x 1”
53
40
1.0
0.5 HP
56C
17.0
MX-251
75
40
1.0
1 HP
22.5
MX-400
6
1.5” x 1.5”
39
70
1.2
0.75 HP
13.7
7
43
MX-401
6
59
80
1.2
1.5 HP
22.5
7
68
MX-402
2” x 1.5”
73
107
1.2
2 HP
145TC
29.8
MX-402H
99
45
1.0
29.8
MX-403
101
130
1.2
3 HP
32.0
MX-403H
126
70
1.0
32.0
MX-505
2.5" x 2"
86
225
1.2
5 HP
184TC
59.5
MX-F250
1” x 1”
48
43
1.2
0.5 HP
56C
17.0
MX-F251
69
40
1.0
1 HP
22.5
MXF400
V
1.5” x 1.5”
43
65
1.2
0.75 HP
13.7
X
34
65
MXF401
V
68
86
1.5 HP
22.5
X
50
75
MX-F402
2” x 1.5”
70
120
2 HP
145TC
29.8
MX-F403
93
130
3 HP
145TC
32.0
3 Specifications
Note 1: The specific gravity limit values shown above are with maximum impellers. The specific gravity limit
varies with the diameter. For details, contact your local distributor.
3
No.
Name
Qty
MX-250
MX-251
MX-401
MX-F250
MX-F251
MX-F401
1
Front casing 1 GFRPP
CFRETFE
2
Mouth ring 1 Filler charged fluororesin
PTFE or SiC
3
Impeller
1
GFRPP
CFRETFE
4
O-ring*
1
FKM/EPDM
JIS B 2401 G165
5
Bearing
AF
1
Carbon
Alumina Ceramic
CV, CF
HD Carbon
RV, RF
Filler charged fluororesin
PTFE
AV, KK
Alumina ceramic
SiC
6
Magnet capsule
1
Ferrite mag. + polypropylene
CFRETFE + Ferrite
7
Spindle 1 Alumina Ceramic 99.5%
Alumina ceramic or SiC
8
Rear thrust
1
CFRPPS
CFRETFE
9
Rear casing
1
GFRPP
CFRETFE
10
Drive magnet unit
1
Ferrite mag. + aluminum alloy
11
Motor 1 0.5 HP
1 HP
1.5 HP
0.5 HP
1 HP
1.5 HP
12
Base
1
GFRPP
GFRPP
13
Motor adapter
1
FC200
14
Hex head bolt
4
Steel
M8 x 20 w/PW, SW
15
Hex head bolt
6
SS
M8 x 35 w/PW, SW
16
Hex head bolt
2
SS
M8 x 50 w/PW, SW
18
Flange kit
2
GFRPP
CFRETFE
19
Liner ring 1 Alumina ceramic 99.5%
Alumina Ceramic 99.5% or SiC
21
Hex head screw 2 Steel M8 x 10
Steel M8 x 10
12 14 21 13 10 8
5
7
6
4
9
1
2
19
3
16
15
11
MX-(F)250, MX-(F)251, MX-(F)401
* Additional o-ring materials available upon request.
4
11
12
15
16
3
19
2
1
14 21 13
10
8
5
7
6
4
9
No.
Name
Qty
MX400
MX-F400
1
Front casing 1 GFRPP
CFRETFE
2
Mouth ring
1
Filler charged fluororesin
PTFE/SiC
3
Impeller 1 GFRPP
CFRETFE
4
O-ring*
1
FKM / EPDM
JIS B 2401 G135
5
Bearing
CV, CF
1
HD Carbon
RV, RF
Filler charged fluororesin
PTFE
KK
----
SiC
6
Magnet capsule
1
Ferrite + polypropylene
Ferrite + CFRETFE
7
Spindle 1 Alumina ceramic 99.5%
Alumina ceramic or SiC
8
Rear thrust 1 CFRPPS
CFRETFE
9
Rear casing 1 GFRPP
CFRETFE
10
Drive magnet unit
1
Ferrite + FCD450
11
Motor
1
1 or 1.5 HP
12
Base
1
GFRPP
GFRPP
13
Motor adapter
1
FC200
14
Hex bolt
4
Steel
M8 x20 w/PW, SW
15
Hex head bolt
4
SS
M8 x 30 w/SW
16
Hex head bolt
2
SS
M8 x 40 w/PW, SW
18
Flange kit 2 GFRPP
CFRETFE
19
Liner ring 1 Alumina ceramic 99.5%
Alumina ceramic or SiC
21
Hex head screw
2
Steel M8 x 10
MX-(F)400
*Additional o-rings materials available upon request.
5
11
12
15
16
14
21 13 10
8
7 5
6 9
4
19
17
2
3
1
No.
Name
Qty
MX-402(H), 403(H)
MX-F402, F403
1
Front casing 1 GFRPP
CFRETFE
2
Mouth ring
1
Filler charge fluororesin
PTFE or SiC
3
Impeller 1 GFRPP
CFRETFE
4
O-ring*
1
FKM / EPDM
JIS B 2401 G195
5
Bearing
CV, CF
1
Carbon
HD Carbon
RV, RF
Filler charge fluororesin
PTFE
AV, KK
Alumina ceramic
SiC
6
Magnet capsule
1
Ferrite mag. + polypropylene
Ferrite mag. + CFRETFE
7
Spindle 1 Alumina ceramic 99.5%
Alumina ceramic or SiC
8
Rear thrust 1 CFRPEEK
CFRPFA
9
Rear casing 1 GFRPP
CFRETFE
10
Drive magnet unit 1 Ferrite mag. + aluminum alloy
11
Motor
1
2 + 3 HP
12
Base
1
GFRPP
13
Motor adapter
1
FC200
14
Hex head bolt 4 Steel M8 x 20 w/PW, SW
15
Hex head bolt
7
SS M10 x 55 w/ SW
16
Hex head bolt
1
SS M10 x 60 w/PW, SW
17
Lock pin 2 CFRPPS
CFRETFE
18
Flange kit, discharge
2
GFRPP
CFRETFE
19
Liner ring
1
Alumina ceramic 99.5%
Alumina ceramic or SiC
20
Motor bolt
4
SS 3/8 x 3/4”
21
Hex head screw
2
Steel M8 x 10
22
Flange kit, suction
1
GFRPP
CFRETFE
MX-(F)402(H), MX-(F)403(H)
*Additional o-ring materials available upon request.
6
No.
Name
Qty
MX-505
1
Front casing
1
GFRPP
2
Rear casing
1
GFRPP
3
Impeller
1
GFRPP
4
Drive magnet unit 1 Rare earth magnet +FCD450
8
Magnet capsule 1 Rare earth magnet +PP
9
Hex socket set screw 2 Steel M8 x 10
10
Hex head bolt 4 Stainless Steel M12 x 35, SW
11
Hex socket head bolt
6
Stainless Steel M10 x 45, PW, SW
12
Hex socket head bolt
2
Stainless Steel M10 x 75, PW, SW
13.1
Flange IN Inner
1
GFRPP
13.2
Flange IN Outer
1
GFRPP
14.1
Flange Out Inner
1
GFRPP
14.2
Flange Out Outer 1 GFRPP
15
Motor
1
17
Adapter
1
FC200
CV/CE
RV/RE
18
Liner ring 1 Alumina Ceramic 99.5%
19
Rear thrust
1
CFRPEEK
20
Spindle
1
Alumina Ceramic 99.5%
21
Bearing 1 Carbon
PTFE
22
Mouth ring
1
PTFE
23
O Ring 1 V:FKM E:EPDM JIS B 2401 G230
24
O Ring 1 V:FKM E:EPDM JIS B 2401 G70
25
O Ring 1 V:FKM E:EPDM JIS B 2401 G55
27
Lock Pin
2
GFRPPS
MX-505
7
CAUTION
Do not run pump dry
When the pump is operated for the first time after it was installed or after it was disassembled and
repaired, fill the pump chamber with the liquid to be pumped. If the pump runs dry without any liquid,
rubbing parts of pump will seize. The moving or rotating parts of MX pumps are lubricated and
cooled by the pumped liquid. The pump will be damaged if run dry or with the suction side valve
fully closed. If the pump runs dry by mistake, switch off the power and leave it for more than one
hour to cool it down slowly.
Keep pump away from fire
To prevent fire and explosions, do not place dangerous or inflammable substances near to pump.
No remodeling
Remodeling the pump can cause risk of injury or electrical shock.
!
4 Handling
Precautions on handling
1. Precautions when pump is started or stopped
When discharge line is long and to avoid water hammer, pay attention to the following:
a. When pump is started
After priming, close the discharge valve before power is switched on. After the
pump is started, gradually open the discharge valve to get the desired duty
point.
b. When pump is stopped
Gradually close the discharge valve and switch off the power. Never close the
discharge line suddenly with a solenoid valve. Sudden close of discharge line
causes water hammer resulting in pump damage.
2. Do not install or store pump in the following places.
Where the temperature falls below 0 deg. C.
Where there is corrosive or explosive gas.
Where water is splashed (except the pump equipped with weather-proof motor)
Where ambient temperature exceeds 40 deg. C.
Where humidity exceeds 85% (Allowable humidity: 35 to 85%RH)
3. Prime pump
The pump is not self-priming. Before the pump is started, prime the pump with pumped liquid.
Dry running causes seizure and quick wear of parts.
8
Model MX-
(F)250
(F)251
(F)400
(F)401
(F)402, 403
402H,
403H
505
Max. allowable pressure PSI
(MPa)
36.3
(0.25)
47.9
(0.33)
31.9
(0.22)
40.6
(0.28)
62.4
(0.43)
72.5
(0.5)
47.9
(0.33)
4. Pump allowable pressure
Pump allowable pressure is shown below. Do not allow discharge pressure to exceed the
allowable pressure.
5. Liquids to be transferred
a. Liquid containing slurry
Slurry cannot be handled except for type A or KK (with alumina ceramic bearing)
which can handle slurry liquid up to 5% concentration, slurry size of 50 micron m or
below and hardness up to 80Hs. Contact Iwaki America if you wish to handle slurry
liquid.
b. Performance influenced by specific gravity and viscosity of liquid
Liquid which is heavier or more viscous than water influences the shaft power,
discharge capacity and head.
The pump you purchased is made according to the specifications you gave us when
ordered. If you wish to change the conditions, please contact us.
c. Alumina ceramic bearing (types AV, AE) may be worn in a short time depending on
the characteristics of liquid (low viscosity etc.). Please contact Iwaki America if you
have any questions.
d. Influence by temperature
Pump performance is not influenced by the change of liquid temperature; however, the
temperature will affect the viscosity, vapor pressure and chemical corrosion. Refer to
the chemical resistance table for the permissible temperature for specific chemical
liquids.
Temperature of liquid to be handled: 0 – 80 deg. C (for water)
Permissible ambient temperature: 0 – 40 deg. C
Permissible humidity: 35 – 85% RH
6. Intermittent operation
Frequent stopping and starting may cause pump damage. Keep the start/stop frequency to within
six times an hour.
7. Disconnection of magnet coupling
If the magnet coupling is disconnected, stop the pump within a minute. If the pump runs with
the magnet coupling disconnected, the power of coupling will be decreased.
9
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