NIKKISO CHEMIPON BX Series User manual

Chemical Metering Pump
CHEMIPON BX Series
Instruction Manual
Recommendation
3. We assume no responsibility in use of this pump outside the contracted
specifications.
2. Keep this instruction manual in a place that allows for easy access by an
operator.
1. Make sure to read this Instruction Manual before unpacking, installation,
wiring, operation and maintenance.
SHUN EIKO CO., LTD.
Licenced by NIKKISO EIKO CO., LTD.

Ta ble of Cont ent s
1. Using the Pump Safely
1.1 How to use this manual ........................ 1
1.2 Operational conditions ......................... 1
1.3 Operational safety ................................. 2
2. Unpacking ········································· 3
3. Model ················································· 4
4. Pump Construction
4.1 Components ........................................... 5
4.2 Construction .......................................... 6
5. Specifications ··································· 7
6. Part Materials
6.1 Pump head ............................................. 8
6.2 Accessories
6.2.1 Anti-siphon check valve ..................... 9
6.2.2 Foot valve ........................................ 10
7. Performance Curves ················· 11~13
8. Installation
8.1 Installation location ............................. 14
8.2 Precautions for installation ................ 14
8.3 Installing the tank ................................ 14
9. Piping and Wiring
9.1 Piping
9.1.1
Connecting the suction/discharge hose. 15
9.1.2 Piping configuration ......................... 15
9.1.3 Installing the foot valve .................... 16
9.1.4
Installing the anti-siphon check valve .... 16
9.2 Wiring ................................................... 17
10. Operation
10.1 Pre-operation checks ....................... 18
10.1.1 Checking the direction of rotation..... 18
10.2 Venting ............................................... 18
10.3 Adjusting the stroke length ............. 19
10.4 Starting operation ............................. 20
10.4.1 Checking the flow rate .................. 20
10.5 Stopping and restarting ................... 20
11. Maintenance Instructions
11.1 Inspections during routine use ....... 21
11.2 Preparations for extended non-use 21
11.3 Preparations for re-use ..................... 21
12. Troubleshooting
12.1 Pump does not start ......................... 22
12.2
Pump runs but liquid is not pumped.
12.2.1 Air has entered the pump .............. 23
12.2.2 Liquid is not pumped ..................... 24
12.3
Pump runs but liquid is not discharged ... 25
12.4 Liquid leaks ....................................... 26
13. Spare Parts
13.1 Component parts ........................ 27~28
13.2 Consumables .............................. 29~30
13.3 Ball valve ........................................... 31
13.4 Diaphragm ................................... 31~32
14. Dimensions ···································· 33
15. Warranty and Repair Procedures
15.1 Warranty ............................................. 34
15.2 Repair procedures ............................ 34

1. Using t he Pump Safely
1.1 How to use this manual
This instruction manual uses the symbols below for important matters so that you can use the
NIKKISO CHEMIPON BX Series pump correctly and safely. Since all items are important for your
safety, be sure to follow them.
WARNING
The WARNING mark indicates a dangerous situation that may result in serious injury or even
death if you ignore this mark and misuse the equipment.
CAUTION
The CAUTION mark indicates a hazardous situation that may result in bodily injury and/or
physical damage if you ignore this mark and misuse the equipment.
The ATTENTION mark indicates information that should be heeded in order to ensure the
performance and long life of the equipment.
The NOTE mark indicates a supplementary explanation.
NOTE
ATTENTION
TIP
The TIP mark indicates information for your reference.
1.2 Operational conditions
CAUTION
Using the equipment outside of these conditions for use may lead to a failure.
Use the pump under the following conditions:
•Environmental temperature: -10°C to +40°C
•Relative humidity: ≤85%
•Liquid temperature: +5°C to +40°C
•Viscosity: ≤50 mPa•s
•Do not use the pump with slurries.
•Protection level: Equivalent to IP55. If used outdoors, install the pump in a shaded area or attach
the outdoors cover to avoid exposure to direct sunlight.
1

1. U sing the Pump Safely
1.3 Operational safety
WARNING
•Install the pump in a location where unauthorized personnel cannot touch it.
•Do not operate with wet hands. An electric shock may occur.
•For your safety, wear rubber gloves, a protective mask, and safety glasses when handling
chemicals.
CAUTION
•If the pump is dropped or damaged, contact your dealer or SHUN EIKO. If you continue to
use the pump in its current condition, an accident or a failure may result.
•Install a ground fault circuit interrupter (GFCI) on the power source. Otherwise, an electric
shock or a failure may result.
•Be sure to ground the pump with a grounding cable. Otherwise, an electric shock may
occur.
•Do not install the pump in a location with dust or high humidity. An electric shock or a
failure may result.
•Secure the pump in a level location so that it does not move.
•If used outdoors, install the pump in a shaded area or attach the outdoors cover (optional)
to avoid exposure to direct sunlight.
•Always use the pump joints with the hoses and hose nuts that are furnished or designated
alternatives.
•If the piping on the discharge side has its valve left open and foreign matter gets stuck,
pressure may exceed the pump’s specifications and liquid may discharge, which could
damage the pump and piping.
•If an abnormal condition occurs, such as smoke or a burning smell, stop operating the
pump immediately and contact your dealer or SHUN EIKO. If you continue to use the pump
in its current condition, a fire or electric shock may result.
•When disassembling the pump for maintenance or repair, be sure to check that the power
has been shut off and that the pump has no voltage. Also, make sure the power does not
turn ON while the pump is being repaired.
•Before performing maintenance and repair, release the pressure from the discharge piping,
let out the liquid from the liquid ends, and clean the equipment.
2

2. Unpacking
Unpack the equipment and check that it corresponds to your order based on the items below.
1. The model number is the one you ordered (see Section 3, “Model Display”, on page 4 for
information about model number).
2. There was no damage during shipment from an accident or other cause, and no loose bolts or
other fasteners.
3. The following items are included:
Packaged items
No. Part name Qty Remarks
(1) Pump 1
(2) Anti-siphon check valve 1 Screw thread: R 1/2
(3) Foot valve 1
(4) Fastening bolts 4 Hexagonal socket bolt, M6 × 12 (Optional)
(w. flat washer, spring washer)
BX 10・20・30: φ6 × φ11 × 4 m
(5) Braided PVC hose for
suction/discharge 1 BX 50・70・100: φ9 × φ15 × 4 m
(6) Transparent PVC hose for
air vent 1 φ4 × φ7 × 1 m (Optional)
(7) Instruction manual 1
(2) (3)
(5)
(7)
(4)
(1)
(6)
3
NOTE
•If you have any questions, please contact your distributor or the sales office, representative
office, or company head office found on the back of this manual.
•If damage or an abnormality is found, please attach an accident certificate from the
transport company and send it to SHUN EIKO immediately.
If you store the pump temporarily instead of using it immediately after unpacking, then keep it
in a location with good ventilation that is free from dust.
TIP

3. Model
The model on the pump nameplate consists of the following items.
Pump nameplate
Motor nameplate
MODEL BX 10 – P C E – F 110 SP
4
Diaphragm head
Mark Material
P PVC
S SUS304
M SUS316
D PVDF
T PTFE
O-ring/gasket
Mark Material Diaphragm head material
E EPDM Complete application
F FPM Complete application
T PTFE SUS, PVDF, PTFE
Connection (Suction/Discharge)
Mark Type Diaphragm head material
F Flange PVC, SUS, PVDF
H Hose PVC
U Union PVC
K Screw-type SUS, PTFE
Ball valve
Mark Material
C Ceramic
S
Power sources
Mark Specifications
110 Single-phase 100V (50/ 60 Hz), 110V (60 Hz)
120
SUS304*
M SUS316*
*
Materials for diaphragm head: PVC
Ball valve material: SUS304, SUS316
Valve seat material for this assembly is
PVC.
Special specifications
K:High Viscosity
Pump size
Mark
10
20
30
50
70
100
Series
Single-phase 200V (50/ 60 Hz), 220V (50/ 60 Hz)
320 3-phase 200V (50/ 60 Hz), 220V (50/ 60 Hz)
338 3-phase 380V (50/ 60 Hz)
340 3-phase 400V (50/ 60 Hz), 415V (50 Hz)
344 3-phase 440V (60 Hz)

4. Pump Const ruction
4.1 Components
5
(1) Pump drive: Moves the diaphragm in a back-and-forth motion.
(2) Pump head: Performs suction and discharge using the back-and-forth motion
of the diaphragm.
(3) Suction port: Connects the suction hose.
(4) Discharge port: Connects the discharge hose.
(5) Stroke length adjustment knob: Varies the stroke length of the diaphragm’s back-and-forth motion
to adjust the flow rate.
(6) Butterfly bolt: Fixes the stroke length.
(7) Motor: Powers the drive unit.
(8) Terminal box: Terminates electric cable connections; wired to the source power
(such as a control panel).
(9) Pump base: Secures the pump using bolts.
(8)
(1)
(2)
(3)
(4)
(5)
(6)
(9)
(7)

4. Pum p Const ruction
4.2 Construction
Two bearings are fastened eccentrically to the camshaft that is directly connected to the motor axle.
The backup is constantly pressed against the bearings through spring resistance. When the
crankshaft turns, it pushes out the backup through the eccentric movement of the bearings. Then the
diaphragm at the end repeats a suction/discharge motion by the back-and-forth motion of the
crosshead.
The end of the lead screw on the stroke-length adjustment knob is connected to the pushed out
backup. Turning the lead screw and changing the backup stroke length (the length pushed out) thus
becomes the mechanism for adjusting the flow rate.
6
Spring
Bearings (1)
Crosshead
Lead screw
Backup
Camshaft
Diaphragm
Direction of
rotation
Back-and-forth motion
Motor
Stroke-length
adjustment knob
Eccent
Bearings (2)

5. Specifications
(Specifications for room temperature and clean water)
BX10 BX20 BX30 BX50 BX70 BX100
Pump model
50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz
Through the
anti-siphon
check valve
250 300 385 460 640 765 830 1000 1140 1365
0.3 MPa 240 285 380 455 620 745 800 960 1130 1355
1900 2280
0.5 MPa 230 275 370 440 605 725 740 885 1100 1320 1800 2160
Capacity
(ml/min)
1.0 MPa 180 215 340 410 550 660 ━━━━━━
Stroke count (spm) 100 120 75 90 120 144 166 200 75 90 120 144
Deceleration ratio 1/15 1/20 1/12.5 1/9 1/20 1/12.5
Stroke length (mm) 2 4 8
Stroke pitch (mm) 1
Stroke-length
adjustment Manual adjustment while pump is running
Diaphragm dia. (mm) 65 84
Motor power (W) 40 90
Operating temperature -10 to +40°C
Relative humidity ≤85%
Liquid temperature 5 to 40°C
Liquid viscosity 50 mPa•s
The above specifications may be changed without notice to make improvements. We appreciate your
understanding.
7

6. Part Materials
6.1 Pump head
Material
No. Part name
BX 10•20•30 BX 50•70•100
(1) Diaphragm head PVC PVC
(2) Diaphragm PTFE/ EPDM PTFE/ EPDM
SAPH440(50)
(3) Backup plate SAPH440
S20C(70•100)
(4) Hose joint PVC PVC
(5) Union nut A PVC ―
(6) Union nut B ―PVC
(7) Union nut collar PVC PVC
(8) Hose nozzle ―PVC
(9) Ball guide PVC PVC
(10) Ball valve Ceramic Ceramic
(11) Valve seat FPM, EPDM PVC
(12) O-ring ―FPM, EPDM
(13) O-ring FPM, EPDM FPM, EPDM
(14) O-ring ―FPM, EPDM
8
BX 10•20•30 BX 50•70•100

6. Par t Mat eria ls
6.2 Accessories
6.2.1 Anti-siphon check valve
9
No. Part name Material
(1) Body PVC
(2) Diaphragm FPM, EPDM
(3) Spring seat PVC
(4) Cap PVC
(5) Spring SUS304
(6) Nozzle PVC
(7) Hose joint PVC
(8) Union nut collar PVC
(9) Union nut A PVC
(10) Ball valve FPM, EPDM
(11) O-ring FPM, EPDM
(12) Air vent valve PVC
(13) O-ring FPM, EPDM
(14) O-ring FPM, EPDM
No. Part name Material
(1) Body PVC
(2) Diaphragm FPM, EPDM
(3) Spring seat PVC
(4) Cap PVC
(5) Spring SUS304
(6) Nozzle PVC
(7) Joint PVC
(8) Hose nozzle PVC
(9) Union nut collar PVC
(10) Union nut B PVC
(11) Ball valve FPM, EPDM
(12) O-ring FPM, EPDM
(13) Air vent valve PVC
(14) O-ring FPM, EPDM
(15) O-ring FPM, EPDM
(16) O-ring FPM, EPDM
BX 10•20•30 (B55PV)
BX 50•70•100 (B73APV)

6. Par t Mat eria ls
6.2.2 Foot valve
BX 10•20•30 (B63APV)
BX 50•70•100 (B65PV)
No. Part name Material
(1) Strainer PE
(2) Hose joint PVC
(3) Valve seat FPM, EPDM
(4) Ball valve Ceramic
(5) Spacer PE
No. Part name Material
(1) Strainer PE
(2) Hose joint PVC
(3) Valve seat FPM, EPDM
(4) Ball valve Ceramic
(5) Spacer PE
10

7. Performance Curves
These performance curves were measured under fixed conditions using SHUN EIKO test equipment
Conditions: Room temperature, clean water, suction height: 1 m, stroke length: 100%
Performance curves may vary by location and conditions. The flow rate should be adjusted
according to flow rate measurements based on use conditions.
BX10
11
NOTE
C
a
p
acit
y
(
mL
/
min
)
C
a
p
acit
y
(
mL
/
min
)
50 Hz 60 Hz
Stroke length (%) Stroke length (%)
Through anti-siphon
check valve 0.3 MPa 0.5 MPa 1.0 MPa
BX20
C
a
p
acit
y
(
mL
/
min
)
50 Hz 60 Hz
C
a
p
acit
y
(
mL
/
min
)
Stroke length (%) Stroke length (%)
Through anti-siphon
check valve 0.3 MPa 0.5 MPa 1.0 MPa

7. Pe rfor ma nce Cur ve s
BX30
12
50 Hz 60 Hz
C
a
p
acit
y
(
mL
/
min
)
C
a
p
acit
y
(
mL
/
min
)
Stroke length (%) Stroke length (%)
Through anti-siphon
check valve 0.3 MPa 0.5 MPa 1.0 MPa
BX50
50 Hz 60 Hz
C
a
p
acit
y
(
mL
/
min
)
Ca
p
acit
y
(
mL/min
)
Stroke length (%) Stroke length (%)
Through anti-siphon
check valve 0.3 MPa 0.5 MPa

7. Pe rfor ma nce Cur ve s
BX70
0.5 MPa0.3 MPa
Through anti-siphon
check valve
Capacity (mL/min)
50 Hz 60 Hz
Stroke length (%) Stroke length (%)
Capacity (mL/min)
BX100
0.5 MPa
Stroke length (%)Stroke length (%)
60 Hz50 Hz
Capacity (mL/min)
C
a
p
acit
y
(
mL
/
min
)
13

8. Installation
8.1 Installation location
Avoid using the pump in these types of locations:
•Temperate of -10°C and below or +40°C and above,
humidity of 85% and above
•Indoor locations with poor ventilation or relatively high
humidity
•Outdoor locations with rain, wind, dust, or direct sunlight
•Installation surface with large vibrations
TIP
If the pump is used outdoors, protect it with the special outdoor cover (optional).
CAUTION
If used without the outdoor cover, the pump may be damaged by
deterioration of the plastic through exposure to sunlight.
8.2 Precautions for installation
(1) Place the pump within 1 m of the tank.
(2) Ensure sufficient space for the maintenance inspection (border of 1 m or more).
(3) When handling the pump, do not drop it or subject it to a strong impact.
CAUTION
A strong impact may make the pump unable to exercise basic
functions. Please handle with care.
(4) Liquids in which air bubbles are likely to form may be prevented
from transmission due to gas lock. In this case, be sure to place
the pump in a lower position than the tank (See 9. “Piping and
Wiring” on p. 15).
(5) Fasten the pump base in a level location with the 4 fastening
bolts furnished with the product.
CAUTION
Tilting the pump may cause the discharge rate to fall or a
discharge failure to occur. Therefore, be sure to fasten the
unit securely in a level position so that it does not vibrate.
8.3 Installing the tank
•Install the tank in a location where it is easy to perform maintenance inspections.
•If placed outdoors, install the tank in a shaded area where it will not be exposed to direct sunlight.
CAUTION
If the tank is exposed to direct sunlight, the temperature of the chemicals may rise and a
decomposition reaction may ensue, which may cause the composition of the liquid to change. Also,
problems may occur with the pump in use.
14

9. Piping and Wiring
9.1 Piping
Cut the furnished suction/discharge hose before use.
9.1.1 Connecting the suction/discharge hose.
15
(1) Run the braided PVC hose through the union
collar and union nut, and push the end of the
hose well into the hose joint.
(2) Fasten the hose, by setting the union collar, and
then tightening the union nut by hand.
CAUTION
The union nut is made of plastic. Do not tighten the
nut more than necessary. Also, do not use a wrench
or other tools to fasten the nut. The union nut may
break.
9.1.2 Piping configuration
(1) Connect the braided hose to the hose joints on the discharge side and the suction side of the
pump liquid ends, as described in Section 9.1.1.
(2) Connect the discharge hose to the anti-siphon check valve and the suction hose to the foot valve.
The discharge hose should be set as vertical as possible in order to prevent air
from accumulating.
(3) Connect the furnished air vent hose (transparent PVC hose) to the air vent valve of the
anti-siphon check valve.
Hose
Union nut
Union
collar
Push firmly
inside.
Fasten firmly
by hand.
Hose joint
TIP
Anti-siphon check valve
Air vent
valve
From above the pump
To injection
point
To injection point
Suction
hose
Pump
Discharge
hose
Air vent
hose
Foot valve
Tank
Air vent hose
Tank
Air vent valve Anti-siphon
check valve
Discharge
hose
Suction
hose Pump
Fro pm below the pum

9. Piping a nd Wiring
9.1.3 Installing the foot valve
PVC pipe
The suction hose may have a tendency to curl up.
If the hose is inserted in the tank in this condition,
the weight of the foot valve alone may not keep
the hose submerged. This is especially true on hot
days in summer, when dissolved air may remain in
the foot valve or hose and cause the hose to float
up.
Therefore, be sure to take measures like the
following:
TIP
Use size 13A or 16A.
•Surround the suction hose with a sheath of
similar PVC pipe.
•Run a rod along side the suction hose.
•Attach a weight to the foot valve Foot valve
9.1.4 Installing the anti-siphon check valve Anti-siphon check valve
16
Check that it is set in place.
■Drip injection into a storage tank
(1) Fasten the anti-siphon check valve so
that it does not drift away and does not
sway or wobble.
(2) Make sure the anti-siphon check valve
is secure so that it does not fall off.
Storage
tank
Storage tank
■Injection into a pipe line
(1) The screw for the anti-siphon check valve is a
male R 1/2 screw. Set a female Rc 1/2 screw at
the injection point.
(2) Wrap the threaded section of the anti-siphon
check valve in sealing tape and screw it in.
(3) Cut the nozzle tip of the anti-siphon check valve so
that the end is at the center of the injection pipe.
For better maintenance, we recommend that you
install a source valve between the socket and the
anti-siphon check valve. This valve should be
selected in consideration of its anti-corrosion
capabilities against the liquid in use.
Pipe line
Female Rc 1/2
Anti-siphon check
valve
TIP
CAUTION
Absolutely do not operate the pump with the source valve shut. The pump and piping may
undergo high pressure (may pressurize) and the liquid may spew out, which could damage
the equipment.

9. Piping a nd Wiring
9.2 Wiring
This pump is only supplied as a stand-alone unit. For the power source, provide safety equipment
such as breakers and a control panel with an ON/OFF switch. Also, set up an ammeter for monitoring
pump operation.
WARNING
•Wiring work should be done by a certified electrician.
•Electrical work should not be conducted until it has been confirmed that the power is OFF.
Otherwise, an electric shock may occur.
•Be sure to ground the pump with a grounding cable. Otherwise, an electric shock may occur.
CAUTION
•Check that the supplied voltage agrees with the rated voltage on the motor nameplate.
17
Needle-shaped
terminal
•Wiring work should be performed in compliance with electrical construction standards and
company regulations.
10 mm
We recommend that you use a crimp contact with insulation tubing
for connecting wires. Remove the cable sheath so that about 10 mm
of wire is exposed.
Cable thickness: 5 to 10 mm.
(1) Remove the terminal box cover
and pass the electrical cable
through the hole in the cover.
Power cable
Cover
(2) Wire the electrical cable terminals to the motor terminal.
Make sure the pump rotates in the proper direction when used. To confirm the direction of
rotation, see page 18.
■Single-phase connection ■3-phase connection (wired for proper rotation)
(3) Re-attach the terminal box cover to its original state.
NOTE
TIP
White
Black
Grounding cable
Power cable Power cable
White (S)
Red (R)
Grounding
cable
Black (T)