IWAKI PUMPS APN-450 User manual

Read this manual before use of product
IWAKI Air Pump
APN-450
Instruction Manual
( )Country codes
IWAKI CO.,LTD. 6-6 Kanda-Sudacho 2-chome Chiyoda-ku Tokyo 101-8558 Japan
TEL:[phone] FAX:[phone](http://www.iwakipumps.jp)
T730-4 '14/09
Australia IWAKI Pumps Australia Pty. Ltd.
TEL:[phone] FAX:[phone]
Italy IWAKI Europe GmbH, Italy Branch
TEL:[phone] FAX:[phone]
Austria IWAKI EUROPE GmbH
TEL:[phone] FAX:[phone]
Korea IWAKI Korea Co.,Ltd.
TEL:[phone] FAX:[phone]
Belgium IWAKI Belgium n.v.
TEL:[phone] FAX: 13672030
Malaysia IWAKIm Sdn. Bhd.
TEL:[phone] FAX: [phone]
China IWAKIPumps(Shanghai)Co.,Ltd.
TEL:[phone] FAX:[phone]
Norway IWAKI Norge AS
TEL:[phone] FAX:[phone]
China IWAKI Pumps (Guangdong) Co.,Ltd.
TEL:[phone] FAX:[phone]
Singapore IWAKI Singapore Pte. Ltd.
TEL:[phone] FAX:[phone]
China GFTZ IWAKI Engineering&Trading(Guangzhou)
TEL:[phone] FAX:[phone]
Spain IWAKI Europe GmbH, Spain Branch
TEL:[phone] FAX:[phone]
China GFTZIWAKIEngineering&Trading(Beijing)
TEL:[phone] FAX:[phone]
Sweden IWAKI Sverige AB
TEL:[phone] FAX:[phone]
Denmark IWAKI Nordic A/S
TEL:[phone] FAX:[phone]
Switzerland IP Service SA
TEL:[phone] FAX:[phone]
Finland IWAKI Suomi Oy
TEL:[phone] FAX:[phone]
Taiwan IWAKI Pumps Taiwan Co., Ltd.
TEL:[phone] FAX: [phone]
France IWAKI France S.A.
TEL:[phone] FAX:[phone]
Taiwan IWAKI PumpsTaiwan(Hsin-chu)Co.,Ltd. TEL:[phone] FAX:[phone]
Germany IWAKI EUROPE GmbH
TEL:[phone] FAX:[phone]
Thailand IWAKI (Thailand) Co.,Ltd.
TEL:[phone] FAX:[phone]
Holland IWAKI Europe GmbH, Netherlands Branch
TEL:[phone] FAX: [phone]
U.K. IWAKI Pumps (UK) LTD.
TEL:[phone] FAX:[phone]
HongKong IWAKI Pumps Co., Ltd.
TEL:[phone] FAX:[phone]
U.S.A. IWAKI AMERICA Inc.
TEL:[phone] FAX:[phone]
Indonesia IWAKISingapore(IndonesiaBranch)
TEL:[phone] FAX:[phone]
Vietnam IWAKI pumps Vietnam Co.,Ltd.
TEL:[phone] FAX:[phone]

Thank you for selecting an Iwaki APN-450 Air 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 serv-
ice of your pump.
Contents
Safety instructions ····························································· 1
Outline 1. Unpacking & Inspection ..................................................5
2. Product outline.................................................................5
3. Specification.....................................................................6
4. Dimensions.......................................................................7
5. Performance curves..........................................................9
6. Overview........................................................................10
7. Exploded view................................................................11
Installation 1. Before installation ..........................................................16
2. Installation/ Tubing/ Electrical wiring...........................19
Operation 1. Before operation.............................................................23
2. Pump operation..............................................................23
Maintenance 1. Troubleshooting..............................................................25
2. Maintenance & Inspection.............................................26
3. Wear part replacement ...................................................27
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 -
Safety instructions
Nonobservance or misapplication of “Caution” sec-
tions could lead to a personal injury or property
damage.
For the Safe and
Correct Handling of the Pump
●"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.
●Observe the instructions accompanied with "WARNING" or "CAUTION" in this manual. These
instructions are very important for protecting users from dangerous situations.
●The 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.

- 2 -
WARNING
Safety instructions
● Turn off power
Risk of electrical shock. Dismantling/assembling the pump unit without turn-
ing off power may cause an electrical shock. Before engaging in any mainte-
nance or inspection work, be sure to turn off the pump and related devices.
● For specified application only
The use of the pump in any application other than those clearly specified
may result in injury or damage. Use the pump in a specified condition.
● No modification
Do not modify the pump. We are not responsible for any accidents or dam-
age due to modification.
● Specified power only
Do not apply any power other than the specified one on the nameplate.
Otherwise, personal injury or property damage may result.
● Wear protective clothing
Always wear protective clothing such as safety goggles and protective gloves
during pipework or dismantlement.
● Do not touch the pump or pipe with bare hands
The surface temperature of the pump or pipe rises high along with gas tem-
perature in or right after operation.
CAUTION
● Restriction on operators
The pump should be handled by a qualified person with a full understanding.
● Ventilation
Poisoning may result when handling a toxic or odorous liquid. Keep good
ventilation in a working area.
● Operating and Storage conditions
Do not install or store the pump:
1. Where ambient temperature falls below 0°C or exceeds 40°C.
2. Under a flammable/corrosive atmosphere.
● Countermeasure against efflux
Take protective measures against the accidental efflux caused by diaphragm
breakage.
Prohibited
Prohibited
Electrical shock
Wear protective
gear
No Remodeling
Prohibited
Electrical shock
Prohibited
Electrical shock

- 3 -
CAUTION
Safety instructions
● Do not wet the pump
If a liquid spills over electric parts or wires, a fire or electrical shock may
result. Install the pump in a place free from liquid spillage.
● Damaged pumps
Do not use any damaged pump. Using a damaged pump may lead to an
electric leak or shock.
● Stop operation
On sensing any abnormality or danger, stop operation immediately and
inspect/solve problems.
● Wear part replacement
Observe related instructions for part replacement. Do not dismantle the
pump beyond the extent described in this manual.
● Do not damage a power cable
Risk of fire or electrical shock. Do not scratch, modify, or pull a power cable.
The cable can also be damaged when it is heated or loaded with a heavy
thing.
● Do not place the pump close to water
The pump is not dust-/water-proof construction. The use of the pump in a
humid place or a place where the pump can get wet may result in electrical
shock or short-circuit.
●Install an earth leakage breaker
Risk of electrical shock. Do not use the pump without an earth leakage
breaker. Purchase separately.
● Damaged power cable
Do not use any damaged power cable for the prevention of a fire or electrical
shock. The cable is not replaceable, so that the whole pump unit needs to be
replaced when the cable is damaged.
● Pump disposal
Dispose of any used or damaged pump in accordance with local laws and reg-
ulations (Consult a licensed industrial waste products disposing company.).
● Earth connection
Always earth the pump in order to reduce the risk of electrical shock.
Grounding
Electrical shock
Electrical shock
Electrical shock
Prohibited
Prohibited
Prohibited

- 4 -
Outline
1. Unpacking & Inspection........................5
2. Product outline......................................5
3. Specification.........................................6
4. Dimensions...........................................7
5. Performance curves .............................9
6. Overview.............................................10
7. Exploded view..................................... 11

- 5 -
On unpacking the product, check the following
points. If you find any problems, contact your
nearest distributor.
1. Check the information on labels to see if the
delivery is as per order.
2. Check for transit damage and loose bolts.
2. Product outline
The APN-450 is a diaphragm type air pump.
■ Principle of operation
The rotary motion of the motor is converted
through a connecting rod to the reciprocation of
the diaphragm in the pump chamber, where gas is
transferred from the inlet to outlet.
Outline
1. Unpacking & Inspection
: Flow direction
: Diaphragm reciprocation
: Flow direction
Out In
Discharge Suction
Out In
Con rod
Diaphragm
Model
Air flow
Discharge pressure
Vacuum
Manufacturing No.

- 6 -
3. Specification
■ Pump 50/60Hz
Model Max. air ow Max. dis- charge pres-
sure Max. vacuum Connection I.D. Weight
Lowest starting
temperature
Tube Thread
APN-450 NAT 50/60
L/min 0.1MPa 13.33kPa
[abs.] ø12 Rc1/4
12kg
0ºC
NST 14.2kg
APN-P450 NAT 100/110
L/min 12.8kg
NST 17.1kg
APN-S450 NAT 50/60
L/min -3.33kPa [abs.] 13.0kg
NST 17.4kg
■ Motor
Model Input power Output power Power current
100V 115V 200V 220/240V 100/115/200/220/240V 100V 115V 200V 220/240V
APN-450 NAT
295/345W
(50/60Hz)
-
310/323W
(50/60Hz) 310W (50Hz) 200W 3.2/3.5A (50/60Hz)
-
1.60/1.65A
(50/60Hz) 1.5A (50Hz)
NST
APN-P450 NAT 360W
(60Hz) 3.5A (60Hz)
NST
APN-S450 NAT - -
NST
NOTE1. Observe the maximum discharge pressure of 0.1MPa.
2. Allowable gas temperature range is 0-40°C.
3. Allowable ambient temperature range is 0-40°C.
4. The air flow, maximum discharge pressure and maximum vacuum are obtained when ambient tem-
perature is 20°C and change depending on gas characteristics and temperature fluctuation.
■ Wet end material
Parts Type
NAT NST
Pump head ADC12 SUS304
Valve SUS631-CSP
Diaphragm PTFE (PTFE+EPDM)
Retainer plate ADC12 SUS304
Filter (option) Urethan -
Valve restraint ADC12 GF reinforced PPS
Gasket EPDM FKM
Cover ADC12 SUS304
Seat PTFE
Fitting BsBM SUS304 equivalent
Screw SUS304 equivalent
Tube Nylon ETFE
ADC12 : Aluminium die casting
SUS304 : Austenite stainless steel (18Cr-8Ni)
SUS631-CSP : Stainless steel for springs (17-Cr-7Ni-1Al)
PTFE : Polytetrafluoroethylene
EPDM : Ethylene propylene diene Monomer
PPS : Polyphenylene sulphide
FKM : Fluorine-contained rubber
BsBM : Brass
ETFE : Ethylene tetrafluoroethylene
Outline

- 7 -
4. Dimensions
■ Aluminium pump head type
APN-450 (Single head type)
APN-P450 (Twin parallel heads type)
APN-S450 (Twin series heads type)
Outline
(169)
4-M5 Depth 10
4-M5 Depth 10
(169)
227
4-M5 Depth 10
227
(169)

- 8 -
Outline
■ Corrosive resistant stainless steel pump head
APN-450 (Single head type)
APN-P450 (Twin parallel heads type)
APN-S450 (Twin series heads type)
4-M5 Depth 10
4-M5 Depth 10
4-M5 Depth 10

- 9 -
Outline
5. Performance curves
■ APN-450 (Single head type)
■ APN-P450 (Twin parallel heads type)
■ APN-S450 (Twin series heads type)
Vacuum 48.0kPa abs (360 Torr)
Vacuum 61.3kPa abs (460 Torr)
Vacuum 74.6kPa abs (560 Torr)
Vacuum 88.0kPa abs (660 Torr)
Vacuum 101.3kPa abs (760 Torr)
Air flow L/min
Discharge pressure [kgf/cm²]Vacuum [Torr]
Discharge pressure [MPa]Vacuum kPa [abs]
Air flow L/min
Vacuum [Torr]
Vacuum kPa [abs]
Vacuum 48.0kPa abs (360 Torr)
Vacuum 61.3kPa abs (460 Torr)
Vacuum 74.6kPa abs (560 Torr)
Vacuum 88.0kPa abs (660 Torr)
Vacuum 101.3kPa abs (760 Torr)
Air flow L/min
Discharge pressure [kgf/cm²]Vacuum [Torr]
Discharge pressure [MPa]Vacuum kPa [abs]

- 10 -
6. Overview
The illustration below shows an APN-450 twin head type.
Outline
Pump head
Designed for gas transfer
only. Do not send liquid.
Pump head
Power cable
Connect to corresponding termi-
nals through crimp connectors.
Specification label
Use the pump according to the
specifications on the label.
Pump unit
(Driven unit)
An installation location should
be free from liquid spillage.
Inlet
Outlet
Base
Be sure to anchor the pump
through the bases.
Pump head
Designed for gas transfer
only. Do not send liquid.

- 11 -
7. Exploded view
■ APN-450NAT/NATX
See this exploded view when dismantling/assembling the pump. Do not dismantle the pump beyond
the extent of the instructions on page 28-31, "Wear parts replacement".
No. Part names Q'ty No. Part names Q'ty No. Part names Q'ty
1 Pump head 1 34 Base 1 65 Screw 4
2Valve 237 Valve restraint 2 73 Hex. socket head bolt 4
4Diaphragm 138 Gasket 175 Hex. socket head bolt 8
5 Retainer plate 1 39 Cover 177 Plug 4
8Eccentric shaft 140 Motor 178 Hex. socket head bolt 4
13 Bearing 154 Cover 1102 Fitting* 2
19 Connecting rod 1 60 Set screw 2104 Seat 1
26 Filter (option) 161 Screw 2150 Name plate (Specication) 1
29 Rubber foot 462 Screw 6151 Name plate (Caution) 1
33 Case 1 63 Screw 4
*NAT type only
Outline
Connecting rod unit

- 12 -
Outline
■ APN-P/-S450NAT/NATX
See this exploded view when dismantling/assembling the pump. Do not dismantle the pump beyond
the extent of the instructions on page 28-31, "Wear parts replacement".
No. Part names Q'ty No. Part names Q'ty No. Part names Q'ty
1 Pump head 2 34 Base 1 75 Hex. socket head bolt 8
2Valve 437 Valve restraint 4 77 Plug 6
4Diaphragm 238 Gasket 278 Hex. socket head bolt 4
5 Retainer plate 2 39 Cover 2100 Tube*¹ 1
8Eccentric shaft 140 Motor 1102 Fitting*² 4
13 Bearing 260 Set screw 2104 Seat 2
19 Connecting rod 2 61 Screw 4115 Joint*³ 2
26 Filter (option) 262 Screw 12 150 Name plate (Specication) 1
28 Collar 163 Screw 8151 Name plate (Caution) 1
29 Rubber foot 465 Screw 4
33 Case 1 73 Hex. socket head bolt 4
*¹APN-S type only
*²APN-P450NSTX type only
*³APN-S type only
Connecting rod unit

- 13 -
Outline
■ APN-450NST/NSTX
See this exploded view when dismantling/assembling the pump. Do not dismantle the pump beyond
the extent of the instructions on page 28-31, "Wear parts replacement".
No. Part names Q'ty No. Part names Q'ty No. Part names Q'ty
1 Pump head 1 38 Gasket 175 Hex. socket head bolt 4
2Valve 239 Cover 176 Hex. socket head bolt 4
4Diaphragm 140 Motor 177 Plug 2
5 Retainer plate 1 54 Cover 178 Hex. socket head bolt 4
8Eccentric shaft 160 Set screw 2102 Fitting* 2
13 Bearing 161 Screw 2104 Seat 1
19 Connecting rod 1 63 Screw 4150 Name plate (Specication) 1
29 Rubber foot 465 Screw 4151 Name plate (Caution) 1
33 Case 1 70 Spring washer 4152 Name plate (IN) 1
34 Base 1 73 Hex. socket head bolt 4 153 Name plate (OUT) 1
37 Valve restraint 2 74 Hex. socket head bolt 4
*NST type only
Connecting rod unit

- 14 -
Outline
■ APN-P/-S450NST/NSTX
See this exploded view when dismantling/assembling the pump. Do not dismantle the pump beyond
the extent of the instructions on page 28-31, "Wear parts replacement".
No. Part names Q'ty No. Part names Q'ty No. Part names Q'ty
1 Pump head 2 37 Valve restraint 4 76 Hex. socket head bolt 8
2Valve 438 Gasket 277 Plug 2
4Diaphragm 239 Cover 278 Hex. socket head bolt 4
5 Retainer plate 2 40 Motor 1100 Tube*¹ 1
8Eccentric shaft 160 Set screw 2102 Fitting*² 4
13 Bearing 261 Screw 4104 Seat 2
19 Connecting rod 2 63 Screw 8115 Joint*³ 2
28 Collar 165 Screw 4150 Name plate (Specication) 1
29 Rubber foot 470 Spring washer 8151 Name plate (Caution) 1
33 Case 1 73 Hex. socket head bolt 4 152 Name plate (IN) 1
34 Base 1 74 Hex. socket head bolt 8 153 Name plate (Out) 1
*¹APN-S type only
*²APN-P450NSTX type only
*³APN-S type only

- 15 -
Installation
1. Before installation ...............................16
2. Installation/Tubing/Electrical wiring.....19

- 16 -
1. Before installation
Read through instructions in this section to ensure the optimum performance, safety and service of
your pump.
WARNING
● Do not place dangerous or flammable goods near the pump for your safety.
● Risk of an electrical leak or shock. Do not use a damaged pump.
■ Precautions
● Dropping or subjecting the pump to a strong
impact, failure may result. Handle the pump with
care.
● Do not install the pump in a place where the
pump can get wet. Avoid using wet gas, or inter-
nal condensation will build up and consequently
result in performance deterioration or the short
lives of valves and a diaphragm.
● Do not use the pump in a dusty place. Be sure
to provide one end of a suction line with a filter
to prevent foreign matters from getting into the
pump. Otherwise, the pump performance may
reduce or the lives of valves and a diaphragm
may remarkably shorten.
Installation
Prohibited

- 17 -
Installation
● Do not install the pump in a corrosive or flamma-
ble gas atmosphere. Keep good ventilation in a
working area. Ambient temperature should not fall
below 0°C or exceed 40°C. Observe the allow-
able gas temperature range of 0 and 40°C.
● Observe the rated voltage specified on the name
plate. Applying any voltage than the rated one
may result in failure.
● The pump can not start when the pump head is
pressurized by line pressure. Remove pressure
before operation. After a long period of stoppage,
pump performance at the beginning of opera-
tion becomes occasionally unstable. In this case,
warm the pump up for 10 minutes with no dis-
charge line pressure.
● Surface temperature may rise high in operation
but it dose not mean failure. Do not touch the
pump body directly or place objects which may be
deformed by heat close to the pump.
● Always use a suction valve to adjust an air flow.
● The APN-S450 is designed for vacuum applica-
tion only. Do not connect the pump's outlet with a
pressurized discharge line.
Release
pressure
Release pressure

- 18 -
Installation
● If the compressed air (higher pressure than
atmospheric pressure) is transferred to the pump,
sharp deterioration to the lives of the valves,
diaphragm and bearing may result. Always keep
atmospheric or lower pressure in the suction line.
● Do not tube two or more pumps in series. It may
prevent the motor from starting and lead to a burn
out.
● Indoor use only
This product is not dust-/water-proof. Do not
install it out of doors, in a humid place or a place
where the pump can get wet.
● Do not use solvents such as benzine, alcohol,
thinner for maintenance or cleaning, otherwise a
coat discolours or comes off.
Do not use compressed air.