Anest Iwata DPS 90 F Series Specification sheet

Instruction Use and Maintenance Manual
DIAPHRAGM PUMP SET
GB
DPS 90 F
DPS 90 F Series Series
DPS 90 FN
DPS 90 FN Series Series
This ANEST-IWATA diaphragm paint pump complies to ATEX regulations 94/9/EC.
Protection level: II 2 GX Suitable for use in Zones 1 and 2.
X marking:
Any static electricity discharge from the pump is to be diverted to the ground through the
grounding wire which is included in this product.

Dear Customer,
We thank you for the preference you gave us and we are glad to count you among our customers. We hope the use of
this equipment will satisfy you and your staff.
We have first of all designed our products by focusing not only on our experience, but also on the latest mecha-
nical innovations. The products have then been manufactured with first-rate materials and techniques and tested by con-
sidering your requirements.
We thank you once again and remember that all our technical services are at your disposal for any present and future
requirement.
The company ANEST IWATA EUROPE Srl mission is to supply all their product and spray painting equipment users
and distributors with the STATE-OF-THE-ART of technology and with continuous innovations, to obtain
the best finish at the lowest cost.
Our product range must offer the perfect balance between the energy use and its consequences, to
help to safeguard and improve the environment.
All Anest Iwata Europe Srl staff members use their knowledge and skills to provide their customers with
an excellent service to satisfy them with high quality and reliability and with continuous innovation.
Our activities, as those of many other companies, are in compliance with several European Directives
(Safety and Environment) and International Standards (ISO - Quality and Environment).
As to SAFETY, the standards our products refer to are the CE 89/382 Directive and subsequent; all our
items of this type have the CE marking, are supplied with a Technical File which can be consulted on
request and are accompanied by a use manual (standardized by the European standards EN 292) avai-
lable in different languages.
There are also some specific safety standards, that is EN 1953 standard as to spray guns, and EN-809
pumps and units for liquids,common safety requirements , prEN 12621 as to pressure pumping
circuits.
As to QUALITY standards (ISO 9000), ANEST IWATA EUROPE is provided with the ISO 9001 certifica-
tion. Our company philosophy gives all our partners, distributors and users any possible information,
which is very useful for our product use, for the environment safeguard and for the operators’ safety.
2
ANEST IWATA EUROPE
TORINO - ITALY

CONTENTS
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CONTENTS ………………………………………………………………………………………………PAGE
USE OF THE MANUAL ………………………………………………………………………………………4
SYMBOLS USED ……………………………………………………………………………………………4
INFORMATIVE LETTER………………………………………………………………………………………5
WARRANTY ……………………………………………………………………………………………………7
IMPORTANT INFORMATION-SAFETY PRECAUTION …………………………………………………8
1. SAFETY WARNING …………………………………………………………………………………………9
2. TRANSPORT AND HANDLING ……………………………………………………………………………11
2.1 TRANSPORT …………………………………………………………………………………………………11
2.2 TRANSPORT WITH CARDBOARD PACKAGING ………………………………………………………11
2.3 HANDLING ……………………………………………………………………………………………………12
2.4 TEMPORARY STORAGE …………………………………………………………………………………12
3. PRODUCT IDENTIFICATION ………………………………………………………………………………13
3.1 PLATE DATA …………………………………………………………………………………………………13
3.2 MODELS ……………………………………………………………………………………………………14
3.3 THECNICAL SPECIFICATIONS……………………………………………………………………………15
3.4 SAFETY SYSTEMS …………………………………………………………………………………………18
3.5 SAFETY INDICATIONS ……………………………………………………………………………………19
3.6 WORKABLE PRODUCTS …………………………………………………………………………………19
4. PUMP OPERATION …………………………………………………………………………………………20
4.1 OPERATION DESCRIPTION ………………………………………………………………………………20
5. INSTALLATION AND STARTING …………………………………………………………………………21
5.1 CHECK ON THE PURCHASED PRODUCT………………………………………………………………21
5.2 CONDITIONS FOR INSTALLATIONS ……………………………………………………………………21
5.3 INSTALLATIONS OF MODELS ……………………………………………………………………………22
6. USE ……………………………………………………………………………………………………26
6.1 USE ……………………………………………………………………………………………………26
6.2 SAFETY RULES DURING USE ……………………………………………………………………………26
6.3 CLOTHES ……………………………………………………………………………………………………26
6.4 PREWASH ……………………………………………………………………………………………………27
6.5 STARTING ……………………………………………………………………………………………………27
6.6 DAILY INTERRUPTIONS ……………………………………………………………………………………29
6.7 WRONG AND DANGEROUS USES ………………………………………………………………………30
6.8 PRESSURE RELEASE PROCESS ………………………………………………………………………31
7. MAINTENANCE AND INSPECTIONS ……………………………………………………………………32
7.1 GENERAL NOTES …………………………………………………………………………………………32
7.2 SAFETY RULES DURING MAINTENANCE ……………………………………………………………32
7.3 RECOMMENDED SCHEDULED OPERATION …………………………………………………………32
7.4 DIAPHRAGM PUMP DISASSEMBLY FROM IT BASE SUPPORT ……………………………………33
7.5 LID AND CONNECTOR DISASSEMBLY …………………………………………………………………34
7.6 AIR OPERATING VALVE AND PLATE DISASSEMBLY ………………………………………………34
7.7 DIAPHRAGM SET DISASSEMBLY ………………………………………………………………………34
7.8 ROD DISASSEMBLY ………………………………………………………………………………………36
7.9 INTAKE AND EXHAUST VALVE DISASSEMBLY ………………………………………………………36
7.10 PR-5L , PR-5L N PAINT REGULATOR MAINTENANCE, DISASSEMBLY & ASSEMBLY…………37
7.11 PAINT FILTER MAINTENANCE ……………………………………………………………………………40
8. TROUBLE SHOOTING………………………………………………………………………………………41
9. PART LIST ……………………………………………………………………………………………………44
9.1 DIAPHRAGM PUMP …………………………………………………………………………………………44
9.2 PR-5L , PR-5L N PAINT REGULATOR ……………………………………………………………………45
9.3 AIR REGULATOR SET………………………………………………………………………………………46
9.4 SUCTION HOSE SET ………………………………………………………………………………………47
9.5 ACCESSORIES ………………………………………………………………………………………………47
10 DISMALTING …………………………………………………………………………………………………48
10.1 EQUIPMENT STORAGE ……………………………………………………………………………………48
10.2 DISMALTING …………………………………………………………………………………………………48

Use of The use and maintenance manual is the document accompanying the equipment from its manufactu-
the manual re till its dismantling. Therefore, it is an integral part of the equipment.
The manual must be read before starting ANY ACTIVITY involving the equipment including its hand-
ling.
For a better consultation the instruction manual is divided into the following sections:
SECTION 1
Transport, packaging, handling and check on the purchased product.
SECTION 2
Description of the equipment and of its field of application.
It also describes all the technical features of the equipment.
This information can be compared to that of an illustrative leaflet.
SECTION 3
Equipment installation.
SECTION 4
Description of the controls to use the equipment.
SECTION 5
Ordinary and extraordinary maintenance.
ENCLOSURES
Exploded view and list of components.
Symbols used
The operations which can be dangerous if they are not carried out correctly, are indicated with the
symbol:
The operations requiring a qualified or specialised staff, to avoid any danger, are indicated with the
symbol:
It is advisable to train the staff who have to use the equipment and to check if everything is under-
stood and carried out.
The prescriptions given by these symbols refer exclusively to the equipment in compliance with
Directive “ATEX” 94/9/EC.
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5
Informative This use and maintenance manual is an integral part of the equipment and it must be easily
Letter available to the staff in charge of its use and maintenance.
The user and the maintenance man must know the content of this manual. All the descriptions and
pictures contained in this manual are not binding.
Although the main features of this equipment are not subject to change, the manufacturing Company
reserves itself the right to change those components, details and accessories it deems necessary to
improve the machine or to meet manufacturing or commercial requirements, at any time and without
updating this manual immediately.
COMPLIANCE WITH THE STANDARD
All the units are conceived in compliance with the applicable Essential Safety Requirements of the
Machinery Directive 98/37/EC.
The units are also designed and manufactured in compliance with the Essential Safety
Requirements (ESR) of Annex II of Directive “ATEX” 94/9/EC and they comply with the following
classification:
- Equipment group: II
- Category: Gas 2G.(suitable for use in zones 1 and 2)
- Maximum superficial temperature: temperature class T6.
- X marking. Any static electricity discharge from the pump is to be diverted to the ground
through the grounding wire which is included in this product.
WARNING
TO ENSURE THE GOOD WORKING OF THE EQUIPMENT AND OF ITS SAFETY DEVICES, THE
PUMP MUST BE INSTALLED BY A QUALIFIED STAFF.
WARNING
ALL RIGHTS ARE RESERVED. THE REPRODUCTION OF ANY PART OF THIS MANUAL, IN ANY
FORM, IS STRICTLY FORBIDDEN WITHOUT PRIOR WRITTEN AUTHORIZATION OF THE
MANUFACTURING COMPANY.
THE CONTENT OF THIS MANUAL CAN BE MODIFIED WITHOUT NOTICE. GREAT CARE HAS
BEEN TAKEN IN COLLECTING AND CHECKING THE DOCUMENTATION CONTAINED IN THIS
MANUAL TO MAKE IT AS COMPLETE AND COMPREHENSIBLE AS POSSIBLE.

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WARNING
In case of breakdown or malfunction, apply to the Customer Car Service.
WARNING
THE ORIGINAL CONFIGURATION OF THE EQUIPMENT MUST NOT BE CHANGED AT ALL.
On receiving the equipment check that:
- The supply corresponds to the order specifications
(for example checking model name plate).
- In case of non-compliance, inform immediately our Technical Services.
(for example: problems during first connection or starter) .
CUSTOMER SERVICE
ANEST IWATA EUROPE s.r.l.
C.so Vigevano, 46 - 10155 Torino
Telephone [phone]
Telefax +39 011.85.19.44
E-mail: [email protected]

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Warranty All ANEST IWATA S.r.l. products have a one-year guarantee from the invoice date, unless otherwise
stated in writing. The warranty covers all manufacturing faults and material defects. Any spare part
replacement or repair operations are covered only if they are carried out by our technicians at our
servicing shops.
The faulty parts must be sent CARRIAGE PAID.
Once the components have been repaired, they will be sent CARRIAGE FORWARD to the custo-
mer.
The warranty covers no intervention of our technicians during installation or dismantling operations.
If for practical purposes one of our technicians is sent on site, a charge will be made for the time plus
extra for travelling and expenses.
Our warranty does not cover direct or indirect damage to people or property caused by our equip-
ment. It covers no repair operations carried out by the customer or by a third party, either.
THE WARRANTY DOES NOT COVER:
- Damage or breakdown caused by improper use or assembly.
- Damage or breakdown caused by the use of spare parts that are different from the original or
recommended ones.
- Damage or breakdown caused by a bad preservation.
- Components subject to wear (described in the spare part list).
WARRANTY FORFEITURE:
- In case of delayed payment or other contractual defaults.
- Whenever changes or repairs are carried out on our equipment without prior authorization.
- Whenever the serial number is damaged or removed.
- When the damage is caused by improper use or functioning, or if the equipment falls, is bumped or
by other causes not due to the normal working conditions.
- Whenever the unit is disassembled, tampered with or repaired without the authorization of
ANEST IWATA S.r.l.
All repair interventions carried out under warranty do not interrupt its duration.
All disputes will be settled in the court of justice of Turin.

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• Be sure to read and understand this instruction manual. The operator shall be fully conversant
with the requirements stated within this instruction manual including important warnings, cau-
tions and operations.
• Wrong operation (mishandling) can cause serious bodily injury, death, fire or explosion.
SAFETY FACTOR
• Pay special attention to items which are shown by the below marks and symbols.
MARKS OF WARNINGS AND CAUTIONS
Be sure to observe warnings and cautions in this instruction manual.
If not, it can cause paint ejection and serious bodily injury by drawing organic solvent.
Be sure to observe following marked items which are especially important.
WARNING Indicates a potentially hazardous situation which, if not avoided, may result in serious injury or loss
of life.
CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury or property damage.
IMPORTANT Indicates notes which we ask you to observe. The safety precautions in this instruction manual are
the minimum necessary conditions. Follow national and local regulations regarding fire prevention,
electricity and safety as well as your own company regulations.
Examples of symbols
Indicates [you must be careful]. We will explain briefly in or near the symbol. (The example
on the left is [be careful about ventilation].)
Indicates [you must not do]. We will explain briefly in or near the symbol. (The example on
the left is [Do not touch]).
Indicates [you must do]. We will explain briefly in or near the symbol. (The example on the
left is [Be sure to wear protective mask].)
* We shall not be responsible for any injury or damage caused by disregard of warnings, cau-
tions or instructions.
Important information - Safety precaution

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WEAR PROTECTIVE GEAR
During painting, be sure to wear protective gear such as glasses, mask or gloves
to avoid serious injury caused by paints or solvents which might enter your eyes
or you might inhale.
BE CAREFUL ABOUT VENTILATION
Use it in a well-ventilated area. Painting or cleaning in a narrow area with insufficient ventilation
can cause organic solvent intoxication by sprayed mist of paint or volatile solvent.
If you feel any abnormality during operation, consult a medical doctor immediately.
CONTACT IS FORBIDDEN
When paint leaks, never try to stop it by hand. In that case, close 3-way ball valve (for air) imme-
diately, and open 2-way ball valve (to drain) and reduce paint pressure down to (0 bar / 0 MPa).
BE CAREFUL ABOUT BODILY INJURY
Never point gun towards a person or animal. Never pull trigger of gun when human body or fingers
come near tip of air cap of gun.
Paint can enter human body directly through eyes, mouth or skin. It is very dangerous. If you feel
any abnormality or receive any injury, consult a medical doctor immediately.
LIMIT OF FLUID TO BE USED
Do not use it for food products. As pump parts are not suitable for food products, foreign matter
entering through parts can cause health problems.
KEEP AWAY FROM ORIGINS OF EXPLOSIONS OR FIRES
Never use near sparks or open fire. Especially the following will cause fire
• Open flames such as cigarettes, pipes.
• Electric goods such as stoves, lamps or heates.
BE CAREFUL ABOUT VENTILATION
Use it in a well-ventilated area. Painting or cleaning in a narrow area with insufficient ventilation
can cause fire or explosion due to sprayed mist of paint or solvent which catches fire.
CONNECT GROUNDING
Securely ground pump, spray gun, workpieces and containers containing paint or solvent. Be sure
to use ground wire set supplied with pump set. Connect it to ground to have continuous grounding.
Insufficient grounding will cause explosion or fire if exposed to a spark of electricity.
1. SAFETY WARNING

WARNING!
BE CAREFUL ABOUT EXPLOSION
Be sure to use paint pump at less than max. air inlet pressure (check section 3. specifications).
Use at more than max. air operating pressure can cause explosion of pump resulting in great dan-
ger.
Be sure to use paint pump at less than max. fluid working pressure (check section 3.specification).
Use at more than max. fluid operating pressure can cause explosion of pump resulting in great
danger.
Never bend hose with a radius of less than 50mm. Never put heavy things on it (in order not to
damage the hose). If done, hose can explode causing great danger.
Securely connect hose to avoid leak and looseness. If hose is disconnected during operation,
hazardous hose movement and paint ejection will cause severe bodily injury.
Never use cracked, damaged, bent, crushed or distorted hose. Never use cracked, damaged, bent,
crushed or distorted hose. Leakages from such a hose can cause great danger during operation.
IMPORTANT
Never alter the equipment
When you replace parts, be sure to use our genuine parts. If not done, it can cause insufficient
performance or failure.
Never use the following halogenated hydrocarbon solvents :
methyl chloride, dichloromethane, 1.2-dichloroethane, carbon tetrachloride, trichloroethylene,
1.1.1-trichloroethane which can cause cracks or dissolution on gun body (aluminum) by chemical
reactions. (Be sure that all fluids and solvents are compatible with gun parts. We are ready to
supply a material list used in the gun on request.)
Do not use with corrosive liquids (except for PH6-8)
Install or keep pump free from rain or splashes. If not done, it can cause pump failure
Install pump on a horizontal surface
Install pump free of paint mist. Attached paint mist etc., can cause pump failure
Use clean air filtered through dryer and filter (finer than 50 microns).If not done, it can cause pump
failure.
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2. TRANSPORT AND HANDLING
2.1 TRANSPORT
To transport the equipment only the systems described below can be used. In any case make sure that
the transport and lifting device can bear the weight of the equipment with its packaging.
WARNING
ALWAYS KEEP THE PACKAGING IN VERTICAL POSITION.
WARNING
IT IS ADVISABLE THAT THE STAFF IN CHARGE OF HANDLING THE EQUIPMENT WEAR PROTEC-
TIVE GLOVES AND SAFETY SHOES.
WARNING
WHILE LIFTING OR HANDLING THE EQUIPMENT OR ANY OF ITS COMPONENTS CLEAR THE
WORKING AREA. LEAVE ALSO A SUFFICIENT SAFETY AREA AROUND THE EQUIPMENT TO
AVOID DAMAGING PEOPLE OR OBJECTS WHICH COULD BE THERE.
2.2 TRANSPORT WITH CARDBOARD PACKAGING
The equipment is put inside a cardboard packaging and wrapped with some shockproof material.

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2.3 HANDLING
To handle the cardboard packaging use a trolley.
WARNING
FOLLOW THE INSTRUCTIONS ON THE PACKAGING BEFORE HANDLING AND OPENING IT.
HANDLING BY MEANS OF HANDLE HANDLING BY MEANS OF TROLLEY
2.4 TEMPORARY STORAGE
During transport and storage make sure the temperatures between 0 and 40° C are not exceeded.
In case of storage, make sure the equipment is not put in places with an excessive humidity.

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3. PRODUCT IDENTIFICATION
3.1 PLATE DATA
The manufacturer’s identification plate is applied on the diaphragm pump (see picture below).
It must not be removed at all, even if the equipment is resold. For any communication with the manu-
facturer always mention the serial number written on the plate itself.
The case of DPS- 901 F
• Equipment group : II
• Category: Gas2G (Suitable for use in zones 1 and 2)
• Max. surface temperature: temperature class T6
• X marking : Any static electricity discharge from the pump is to be diverted to the ground through
the grounding wire which is included in this product.
Model
Max air working pressure
Construction year
Serial number

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3.2 MODELS
The following pump models are available:
SOLVENT-BASED PAINT MODELS
Base Model: Pump casing type DDP 90F
SIPHON MODELS:
DPS 901 F: Pump type DDP 90 F mounted on a stand with PR-5L paint pressure regulator, 2 air pressure redu-
cers (for pump and gun), dip tube with filter, paint filter unit, fluid recirculation, 2 safety devices
(1 overpressure valve, 1 ball valve ).
DPS 901 FG: Pump type DDP 90 F mounted on a stand with air pressure reducer (for pump), dip tube with filter,
paint filter unit, fluid recirculation, 2 safety devices (1 overpressure valve, 1 ball valve ).
DPS 902 F: Pump type DDP 90 F mounted on a 20 l. tank with PR-5L paint pressure regulator, paint filter unit,
fluid recirculation , 2 safety devices (1 overpressure valve, 1 ball valve ), 2 air pressure reducers (for
pump and gun).
DPS 903 F: Trailer-mounted pump type DDP 90 F with PR-5L paint pressure regulator, air pressure reducing filter
(forgun), air pressure reducer (for pump), dip tube with filter, paint filter unit, fluid recirculation, 2 safe-
ty devices (1 overpressure valve, 1 ball valve ).
DPS 904 F: Pump type DDP 90 F on wall mounting bracket with PR-5L paint pressure regulator, air pressure
reducing filter (for gun), air pressure reducer (for pump), dip tube with filter, paint filter unit, fluid recir-
culation, 2 safety devices (1 overpressure valve, 1 ball valve ).
GRAVITY MODELS:
DPS 9036 F: Trailer-mounted pump type DDP 90 F with plastic hopper (6 litres with 50 mesh filter), PR-5L paint
pressure regulator, air pressure reducing filter (for gun), air pressure reducer (for pump), paint filter
unit, fluid recirculation, 2 safety devices (1 overpressure valve, 1ball valve ).
WATER-BASED PAINT MODELS
Base Model: Pump casing type DDP 90F N
SIPHON MODELS:
DPS 901 FN: Pump type DDP 90F N mounted on a stand with PR-5L N paint pressure regulator, 2 air pressure
reducers (for pump and gun), dip tube with filter, paint filter unit, fluid recirculation, 2 safety devices
(1 overpressure valve, 1 ball valve ).
DPS 903 FN: Trailer-mounted pump type DDP 90F N with PR-5L N paint pressure regulator, air pressure reducing
filter (forgun), air pressure reducer (for pump), dip tube with filter, paint filter unit, fluid recirculation,
2 safety devices (1 overpressure valve, 1 ball valve ).
DPS 904 FN: Pump type DDP 90F N on wall mounting bracket with PR-5L N paint pressure regulator, air pressure
reducing filter (for gun), air pressure reducer (for pump), dip tube with filter, paint filter unit, fluid recir-
culation, 2 safety devices (1 overpressure valve, 1 ball valve ).
GRAVITY MODELS:
DPS 9036 FN: Trailer-mounted pump type DDP 90F N with plastic hopper (6 litres with 50 mesh filter), PR-5L N
paint pressure regulator, air pressure reducing filter (for gun), air pressure reducer (for pump), paint
filter unit, fluid recirculation, 2 safety devices (1 overpressure valve, 1 ball valve ).

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3.3 TECHNICAL SPECIFICATIONS
MODEL DIMENSIONS [mm] WEIGHT [Kg]
DPS 901 F 500x430x1015 11.9
DPS 901 FG 500x430x1015 11.05
DPS 902 F 360x335x760 11.12
DPS 903 F 500x500x1055 15.9
DPS 904 F 360x260x600 11.4
DPS 9036 F 535x500x1055 16.6
DPS 901 FN 500x430x1015 11.9
DPS 903 FN 500x500x1055 15.9
DPS 904 FN 360x260x600 11.4
DPS 9036 FN 535x500x1055 16.6
Min. air working pressure: 1.5 Bar (0.15bar/22psi)
Max air working pressure: 6.8 Bar (0.68Mpa/98psi)
Fluid outlet: G 3/8"
Fluid inlet: G 1/2"
Air inlet: G 1/4"
Suction fluid filter: 50 mesh
Fluid delivery filter: 100 mesh
Compression ratio: 1:1
Max fluid working pressure: 6.8 Bar (0.68Mpa/98psi)
Max fluid viscosity (solvent base paint): 85 sec/Ford #4 (100sec./NK-2)
Delivery per cycle: 50 cc/cycle
Max No. of cycles per minute: 200 cycles/min
Max delivery: 10 liters / min
Working temperature: from 5 to 40°C
Compressor: (required power only for pump) from 0.4 to 0.75 kW
Compressor: (gun and pump required power ) from 2.2 to 3.7 kW
Paint regulator: PR-5L / PR-5LN
Noise Level: 75.3 dB(A) (This noise level has been measured in compliance
with Machinery Directive 89/392 and with ISO 3744 standards.)

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DPS 903-F
DPS 903-FN
DPS 902-F
DPS 901F
DPS 901 FG
(without PR5L)
DPS 901 FN

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DPS 904-F
DPS 904-FN
DPS 9036-F
DPS 9036-FN

3.4 SAFETY SYSTEMS
Several safety systems have been conceived during the diaphragm pump design and manufacture to
safeguard the operator, in compliance with pr EN 12621 Directive about paint.
SAFETY INFORMATION
In case of units that are to be used in areas with potentially explosive atmospheres, before starting
working the operators must disable the unit power supply, by putting it “out of order”. They also must
ensure that the unit cannot be restarted unintentionally.
All further necessary environmental safety measures must be adopted (such as the elimination of
gas or residual dusts, etc.).
SAFETY VALVE
A 8 bar calibrated safety valve is installed to ensure the pump working pressure does not exceed the
limits inside the feeding circuit.
If the calibration pressure is exceeded, the valve opens by releasing the excess of air.
WARNING
DO NOT REMOVE THE VALVE PLASTIC PROTECTION. ANY TAMPERING WITH COULD BE
DANGEROUS FOR THE OPERATOR AND COMPROMISE THE EQUIPMENT GOOD WORKING.
BALL VALVE
In case of anomalies during working, turn 90° the ball valve lever. In this way the air supply will be
interrupted and the residual pressure inside the pump will be released.
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3.5 SAFETY INDICATIONS
Some indications can be found on the pump with the safety warnings to follow by anyone who is
going to use it.
WARNING
THE MANUFACTURING COMPANY IS NOT TO BE HELD RESPONSIBLE FOR DAMAGE OR
ACCIDENTS TO PEOPLE OR THINGS COMING FROM THE NON-COMPLIANCE WITH THE
PRESCRIBED RULES.THE RESPONSIBILITY RESTS ENTIRELY WITH THE OPERATOR HIM
SELF.
3.6 WORKABLE PRODUCTS
All ANEST IWATA DPS units are conceived to paint ferrous material in general, wood and plastic.
The products that can be delivered are: solvent-based paints for all DPS-90 F models with a maxi-
mum viscosity of 85 sec/Ford # 4 (100 sec/NK-2) and water based paint for all DPS-90 FN
models.
To use the pump with special products ask for the manufacturer's approval. Moreover, the pump
technical features will have to be adapted to the special product working.
The Company ANEST IWATA is not to be held responsible for any accident due to the pump use by
an UNAUTHORIZED and non qualified staff using it for purposes that are different from the above
mentioned ones.
WARNING
DO NOT USE:
- ANY HALOGENATED HYDROCARBON SOLVENTS, SUCH AS TRICHLOROETHANE, METHY-
LENE CHLORIDE OR SOMETHING LIKE THAT;
- ANY INFLAMMABLE OR VERY TOXIC PRODUCTS SUCH AS PETROL, KEROSENE, INFLAM-
MABLE SOLVENTS OR COMBUSTIBLE GASES;
- ANY HERBICIDE OR PESTICIDE
- ANY RADIOACTIVE FLUID

4.1 OPERATION DESCRIPTION
Based on a simple manufacture, the operation consists in two diaphragm movement, which are both
fixed at the end of a rod, pressurizing and sending the paint.
The compressed air enters the air chamber from side A in picture 1. The diaphragm is moved to the
left, by pushing the paint.
At the same time, the diaphragm on the opposite end (side B) moves to the left by sucking the paint.
When the rod is completely on the left, the double pneumatic valve reverses the operations.
The compressed air enters the air chamber from side B in picture 2. The diaphragm is moved to the
right, by pushing the paint.
At the same time, the diaphragm on side A end sucks the paint.
The pump repeats the above-mentioned suction and delivery movements. The result is a steady and
pulsation-free material flow.
The main feature is the action of two pneumatic valves: the first one is a power valve feeding the
pump, and the other one a control valve always ensuring the movement.
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4. PUMP OPERATION
FIG.1
FIG.2
A
A B
Material outlet
Material outlet
Material suction
Material suction
Air inlet
Air outlet
Air inlet
Air outlet
B