Ulvac DAP-9D-DC24 User manual

No．29300-2-01-6
Original instructions
INSTRUCTION MANUAL
Diaphragm-type Dry Vacuum Pump
(For integration)
Model
ＤＡＰ－９Ｄ－ＤＣ２４
ＤＡＰ－１８Ｓ－ＤＣ２４
(According to CE, UKCA, TUV, cTUVus)
Request to Users
Please read this manual thoroughly to ensure safe and
effective use of the equipment.
Keep this manual in a safe place.
Due to periodic improvements in performance, the
equipment described in this manual is subject to
changes in dimensions and specifications without prior
notice.
ULVAC KIKO,Inc.

We,
Company:ULVAC KIKO,Inc.
of
Address:291-7 Chausubaru Saito-city,Miyazaki (ZIP Cord:881-0037) Japan.
This declaration is issued under the sole responsibility of the manufacturer.
In accordance with the following Directive:
2006/42/EC
2014/30/EU
Machinery Directive
EMC Directive
2011/65/EU+(EU)2015/863
RoHS Directive
declare under our sole responsibility that the product,
Type of Product
:
Diaphragm Type Dry Vacuum Pump
Model Name
:
DAP-9D-DC24,DAP-18S-DC24
to which this declaration related is in conformity with the following standards:
EN 1012-2:1996+A1:2009
Compressors and vacuum pumps – Safety requirements, Part2. Vacuum pumps
IEC EN 61010-1:2010+A1:2019
Safety requirement for electrical equipment for measurement, control and laboratory use
Part1.General requirement
following the provisions of
The person stated below will keep the following technical documentation:
operating and maintenance instructions
technical drawings
description of measures designed to ensure conformity
other technical documentation, e.g. quality assurance measures for design and production
Person authorized to compile the technical file:
( Name and address) Chris Goebel
ULVAC GmbH
Klausnerring 4 85551 Kirchheim b. München, Germany
31.Mar, 2023
Makoto Uchimura
Miyazaki , Japan
Development manager
(date & place)
(name, function, signature)
Declaration of Conformity

We,
Company:ULVAC KIKO,Inc.
of
Address:291-7 Chausubaru Saito-city,Miyazaki (ZIP Cord:881-0037) Japan.
This declaration is issued under the sole responsibility of the manufacturer.
In accordance with the following Directive:
Supply of Machinery (Safety) Regulations 2008
(S.I. 2008 No. 1597, as amended by S.I. 2019 No. 696)
Electromagnetic Compatibility Regulations 2016
(S.I. 2016 No. 1091, as amended by S.I. 2019 No. 696)
The Restriction of the Use of Certain Hazardous Substances in Electrical and
Electronic Equipment Regulations 2012 (S.I. 2012 No. 3032)
declare under our sole responsibility that the product,
Type of Product
:
Diaphragm Type Dry Vacuum Pump
Model Name
:
DAP-9D-DC24,DAP-18S-DC24
to which this declaration related is in conformity with the following standards:
BS EN 1012-2:1996+A1:2009
Compressors and vacuum pumps – Safety requirements, Part2. Vacuum pumps
BS IEC EN 61010-1:2010+A1:2019
Safety requirement for electrical equipment for measurement, control and laboratory use
Part1.General requirement
following the provisions of
The person stated below will keep the following technical documentation:
operating and maintenance instructions
technical drawings
description of measures designed to ensure conformity
other technical documentation, e.g. quality assurance measures for design and production
Person authorized to compile the technical file:
( Name and address) Chris Goebel
ULVAC GmbH
Klausnerring 4 85551 Kirchheim b. München, Germany
31.Mar, 2023
Makoto Uchimura
Miyazaki , Japan
Development manager
(date & place)
(name, function, signature)
Declaration of Conformity

Contents
Pages with a shaded background are those which contain items related to safety.
Before Using the Equipment...........................................................................................................０１
Checks When Opening Packaging..................................................................................................０２
Using the Pump Safety...................................................................................................................０３
・Safety Symbols.......................................................................................................... .............０３
・Cautions for Safety in Use..................................................... ..................................................０４
1.Product Outline................................................................................................................................１
1.1 Purpose of Use and Prohibitions......................................................................................１
1.2 Specifications ..................................................................................................................１
1.3 Thermal Protector............................................................................................................１
2.Dimensions......................................................................................................................................２
3.Installation and Storage ...................................................................................................................４
3.1 Cautions for Installation and Storage...............................................................................４
3.2 Environmental Conditions for Installation, Storage, and Operation ..................................４
3.3 Location...........................................................................................................................４
3.4 Electric wiring………………………………………………………………………… …. ……. ４
3.5 Fluctuations in the power voltage………………………...…………………..……. . ………..５
3.6 Checking Operation After Installation...............................................................................５
3.7 Piping ..............................................................................................................................６
3.8 Storage............................................................................................................................６
4.Cautions for Operation.....................................................................................................................６
4.1 Cautions for Operation.....................................................................................................６
4.2 Starting in Cold Weather..................................................................................................６
5.Pump Performance..........................................................................................................................７
5.1 Pressure Achieved...........................................................................................................７
5.2 Evacuation Rate ..............................................................................................................７
5.3 Power Requirements.......................................................................................................７
6.Maintenance, Inspection, and Repair...............................................................................................８
6.1. Cautions for Maintenance, Inspection, and Repair...........................................................８
6.2 Maintenance....................................................................................................................８
6.3 Regular Inspections.........................................................................................................８
6.4 Replacing and Cleaning Consumables........................................................................１０
1) Diaphragm Replacement......................................................................................１０
2) Head Gasket Replacement ..................................................................................１０
3) Suction/Exhaust Valve Replacement ..................................................................１０
6.5 Troubleshooting List ....................................................................................................１２
7.In Conclusion...............................................................................................................................１３
・Warranty………………………………………………………………………………….……………１３
・Usage Status Check Sheet
・Product information, service bases, and contact information

Figures and Tables
Fig.2.1 DAP-9D-DC24 Dimensions.....................................................................................................２
Fig.2.2 DAP-18S-DC24 Dimensions ...................................................................................................３
Fig.3.1 Change region of the voltage and frequency .........................................................................５
Fig.3.2 Example of Piping Used When Evacuating a Vessel...............................................................６
Table 1.1 Product Specifications .....................................................................................................１
Table 6.1 Consumables List................................................................................................................９
Table 6.2 Locations for Maintenance and Inspection ..........................................................................９
Table 6.3 Troubleshooting List........................................................................................................１２

０１
Before Using the Equipment
Thank you for purchasing this product. Your custom is very much appreciated.
This pump is designed solely for vacuum discharge, and may malfunction or cause accidents if not
handled appropriately. Read the manual thoroughly, and pay due attention to inspections,
maintenance, and safety.
Personnel Handling the Equipment
Only persons who have read this manual thoroughly, and have sufficient understanding of
safety, pump specifications, and method of operation, may operate this pump.
Read the Manual Thoroughly
Read the manual thoroughly in order to use the equipment correctly. Read the section on
Safe Use particularly closely.
Keep This Manual in a Safe Place
After reading this manual, be sure to keep it in a safe place which is readily accessible to
others needing to use it.
Copying This Manual Is Prohibited
No part of this manual may be copied for use by a third party without the express
permission of the manufacturer.
Statutory Requirements for Disposal
Follow all statutory and local authority regulations when disposing of this pump.
Safety During Repair
Please provide a full description of the circumstances of use (particularly the use of
dangerous materials) for the safety of repair personnel when requesting the manufacturer
for repairs to the pump. Your request for repair of may be refused if these circumstances
are unclear.

０２
Checks When Opening Packaging
Check the following after opening the packaging.
(1) Is the product as you requested?
(2) Are the accessories and necessary parts included?
Standard accessories
・User’s manual -------------------- ×1
(3) Is the pump damaged in any way?
(4) Are any external screws loose? Are any components missing?
Contact your agent or the sales division of the manufacturer if there are any problems with the
pump.

０３
Using the Pump Safety
To ensure that the pump is handled correctly, read this section thoroughly before use.
This manual and the warning labels on the pump include safety icons as an aid to understanding
safety requirements.
These safety symbols warn the operator and others of possible dangers and damage and should
always be followed.
・Safety Symbols
The meanings of the safety symbols are as follows.
Incorrect handling of the equipment is very likely to result in death or serious injury to the
operator.
Incorrect handling of the equipment may result in death or serious injury to the operator.
Incorrect handling of the equipment may result in light or medium injuries to the operator or
damage to the equipment.
Incorrect handling of the equipment may result in damage to the equipment and hinder its
correct operation.
The surface of some parts of the part reach temperature of more than 60℃during operation.
Do not touch. It may lead to burns.
High Temperature
!
Danger
!
Warning
!
Caution
!
Note

０４
・Cautions for Safety in Use
Applications
(1) This pump is not designed to be explosion-proof, and should therefore not be used to
discharge explosive gases.
(2) Not be used with toxic gases. In addition to discharge of gas via the outlet, gas may also leak
from other parts of the pump, and it should therefore not be used with toxic gases. If toxic
gas is discharged for any reason it is important to note that the interior of the pump will be
contaminated by the gas, requiring appropriate caution during maintenance.
Maintenance and Repair
(3) When requesting the manufacturer’s service division to dismantle and repair the pump,
always note the gas which the pump has been used with on the Usage Status Check Sheet.
Note that if it has been used to discharge toxic gas for any reason it will be contaminated.
Please be aware that use with some gases will preclude dismantling and repair.
Installation
(1) Do not use the pump in an explosive atmosphere. Such use may result in injury and fire.
(2) Ensure that there are no inflammable materials such as solvents in the vicinity when using
the pump.
(3) Ensure that the pump is freely ventilated to prevent overheating which may result in fire or
burns.
(4) This product is suitable for use in industrial areas. In residential areas this product may
cause radio interference in which case the user(or Installer of the final product) may be
required to take adequate measures.
Information for Electromagnetic compatibility (EMC)
Compliance standard
[Emission] EN 61000-6-4:2007+A1:2011
[Immunity] EN 61000-6-2:2005
Power Supply
(5) Set up the overcurrent protective device(ex. Circuit breaker(3A)) for power supply. And
always turn off the overcurrent protective device before checking or repairing the pump.
Failure to do so may result in the pump suddenly starting and causing injury.
(6) Ensure that the relevant wiring is in accordance with technical standards for electrical
equipment and wiring regulations. Incorrect wiring may result in fire.
(7) Use the pump only at the rated voltage. Use at other than the rated voltage may result in the
motor burning out, or fire.
(8) Do not damage, modify, pull the lead wire, or place objects on it. Damage to the lead wire
may result in fire.
(9) Lead wire must be routed and protected so that damage to conductor insulation cannot result
from contact with any rough, sharp edge, or moving part. And lead wire must be avoided
from the mechanical stress.
(10)The power supply must use the SELV power supply or Limited Current Circuits. SELV and
Limited current circuits are defined by IEC/EN60950-1.
(11)Do not pull the lead wire to disconnect from the power source, as it may cause breakage
resulting in leakage, and fire.
(12)Do not touch the lead wire with wet hands .
!
Danger
!
Warning

０５
Installation
(1) Microscopic particles resulting from wear of components are discharged from the outlet and
contaminate the room. If necessary, connect a pipe from the discharge outlet to the outside
of the building.
(2) The fine clearances used in this pump require that the following conditions be satisfied during
storage, installation, and operation.
1. Ambient temperature of 0~40°C and maximum relative humidity of 85% during
operation.
2. Other conditions for storage and operation.
a) Level floor of sufficient strength.
b) No condensation
c) Dust-free environment
d) Location with no oil smoke or oil droplets.
e) Location with no splashes or not submerged in water.
f) Environment free of corrosive or explosive gas.
g) Not subject to direct sunlight.
h) No danger of fire.
i) Maximum ambient temperature of 40°C during assembly of pump.
j) Instead of installing the vacuum pump directly onto a base, always place a vibration
absorption rubber mat between the pump and the base.
k) Well ventilated
Power Supply
(13)Due to the safety function on the driver board, this pump automatically stop when it detects
overloading or locked state. For better safety, make sure that the machinery, on which the
pump is mounted, is also equipped with some kind of safety device to automatically
disconnect the power when it detects overloading or locked state.
(14)The DC24V power supply must be supply from device which pump is built in.
Operation
(15)This pump is not designed to be explosion-proof. When using the pump, ensure that there
are no inflammable materials such as solvents, or explosive gases, in the vicinity. Use under
such conditions may result in injury or fire.
(16)Operating the pump with the discharge outlet blocked, or with a device which prevents
passage of gas to the discharge outlet, may result in rupture of the pump. The internal
pressure of the pump rises and the pump body may rupture and the motor become
overloaded.
This pump is not designed to be pressure-resistant. The internal pressure of the pump is
limited to 0.03 MPa (gauge pressure).
Maintenance and Repair
(17)Always turn off the DC 24V power supply of the pump before maintenance or the repair.
(18)The pump should be dismantled or repaired only by a repair technician trained by the
manufacturer.
(19)To prevent ingestion of microscopic particles resulting from wear of components, use a dust
mask and gloves when replacing diaphragms and valves.
!
Caution
!
Warning

０６
Operation
(3) Touching rotating components (e.g. motor, main shaft, axial joints, cooling fan) while the
pump is in operation may result in injury.
(4) Touching the motor while the pump is in operation or while it is still hot immediately after
having been switched off may result in burns.
(5) Do not insert fingers or objects into, or peer into, the inlet or outlet during operation.
(6) If vapors are emitted in abundance during operation, place a steam trap as a
countermeasure. Make sure that no condensate water penetrates the vacuum pump, as it
may cause malfunction.
(7) Do not give a fan cover part a shock. if give a shock , stop driving promptly, and confirm that
a fan cover and a fan do not have damage. When a fan cover runs in a damaged state, you
may result in injury.
Maintenance and Repair
(8) If the pump ceases operation, turn power OFF immediately to prevent accidents, and contact
your dealer or the manufacturer for inspection and repair.
(9) Leave the pump for at least 30 minutes until it has cooled, and begin operation again.
Touching the pump immediately after it has stopped may result in burns.
!
Caution

０７
Installation
(1) The pump may malfunction if it is subjected to shocks or tipped over on its side.
(2) Do not place objects on, or stand on, the pump. A malfunction may result if the pump is
handled in this manner.
(3) When carry a pump, do not have a fan cover. A fan cover may be damaged.
Applications
(4) This pump is not designed to be corrosion-proof. Use it only with clean air at normal
temperature, or with gases of equivalent characteristics.
(5) This pump is designed solely for vacuum extraction. Operation for long periods at
near-atmospheric pressures may result in a malfunction.
(6) In addition to discharge of gas via the outlet, gas may also leak from other parts of the pump,
and it should therefore not be used with toxic gases. If toxic gas is discharged for any reason
it is important to note that the interior of the pump will be contaminated by the gas, requiring
appropriate caution during maintenance.
(7) Entry of gases containing dust and particles may prevent normal operation of the pump.
Operation
(8) Use the pump within an ambient temperature range of 40°C. Use at high ambient
temperatures will dramatically reduce the life of the pump.
(9) Back pressure at the outlet while the pump is starting may overload the motor.
Maintenance and Repair
(10)The fine clearances used in this pump require skill in its assembly. If a repair technician is
unavailable, replacement of all consumables should be left to the manufacturer’s service
division.
!
Note

１
1.Product Outline
1.1 Purpose of Use and Prohibitions
This product is a dry vacuum pump which employs reciprocating motion of a rubber diaphragm
for vacuum discharge.
Observe the following prohibitions to ensure normal operation of the pump.
Prohibitions
(1) This pump employs only vacuum operation, and must not be pressurized.
(2) Do not re-sell, repair, or modify this pump without the approval of the manufacturer.
(3) This pump is not designed to be corrosion-proof. Use it only with clean air at normal
temperature, or gases of equivalent characteristics.
(4) Do not attempt to discharge gases containing particles, dust, water, or corrosive
gases.
(5) Do not operate the pump for long periods at near-atmospheric pressure.
1.2 Specifications Table 1.1 Product Specifications
Model
ＤＡＰ－９Ｄ－ＤＣ２４
ＤＡＰ－１８Ｓ－ＤＣ２４
Motor
１４Ｗ,４Ｐ
Input Voltage
ＤＣ２４Ｖ（±10%）
Rated current (A)
１．３
１．４
Speed (rpm)
１７００
Discharge rate
(L/minute)
９．０
１８．０
Ult.P.(kPa)
６．６５
２４．０
Noise level
(dB(A))
５５ or less（Ultimate pressure at 1m.）
Inlet and outlet
Ｒｃ１／８
Weight (kg)
１．７５
Air temperature (°C)
０～４０
Dimensions (mm)
８３．５(W)×１６５(L)×１２３．８(H)
Pollution Degree
２
IP Class
１０
Installation features
For integration
1.3 Thermal Protector
１） This vacuum pump has a safety function, which cuts off output of pump within 2 seconds of its
stoppage due to malfunction or overloading.
２） This vacuum pump has a safety function for overcurrent, which automatically turns off the pump
upon detecting current higher than 3 A.
３） When the safety function operates, turn power OFF immediately to prevent accidents.
And contact your dealer or the manufacturer for inspection and repair.
!
Warning
!
Note

２
2.Dimensions
Fig.2.1 DAP-9D-DC24 Dimensions
1.8 m

３
Fig.2.2 DAP-18S-DC24 Dimensions
1.8 m

４
3.Installation and Storage
3.1 Cautions for Installation and Storage
See Warning
(1)(2)(3)(4)(6)(7)(8)(9)(10) (12) (13), P04 to P05
See Caution (1)(2), P05
See Note (1)(2)(3), P07
3.2 Environmental Conditions for Installation, Storage, and Operation
The fine clearances used in this pump require that the following conditions be satisfied during
storage, installation, and operation.
1. Ambient temperature of 0~40°C and maximum relative humidity of 85% during operation.
2. Other conditions (during storage and operation).
a) Level floor of sufficient strength.
b) No condensation
c) Dust-free environment
d) Location with no oil smoke or oil droplets.
e) Location with no splashes or not submerged in water.
f) Environment free of corrosive or explosive gas.
g) Not subject to direct sunlight.
h) No danger of fire.
i) Maximum ambient temperature of 40°C during assembly of pump.
j) Instead of installing the vacuum pump directly onto a base, always place a vibration
absorption rubber mat between the pump and the base.
k) Well ventilated
3.3 Location
The pump should be installed level in a location with minimal dust and humidity. This location
should be selected in consideration of ease of installation and removal, inspection, and
cleaning.
Particular attention should be paid to ambient temperature when fitting the pump to equipment.
Use anti-vibration rubbers to isolate the pump from vibrations in the equipment.
And secure the space of the pump and the wall (or other equipment) by 50mm or more.
See 3.2 Environmental Conditions for Installation, Storage, and Operation for details.
3.4 Electric wiring
1) Wiring construction should be done subject to the laws of each area this pump is used.
2) Lead wire must be routed and protected so that damage to conductor insulation cannot
result from contact with any rough, sharp edge, or moving part. And lead wire must be
avoided from the mechanical stress.
3) When installing the switch into circuit, install into plus line side.
!
Warning
!
Caution
!
Note

５
3.5 Fluctuations in the power voltage
Standard: General rules for rotating electrical machines
IEC 60034-1:2004
To the voltage change in Domain A, in main rated values, it operates continuously, and can
be used practically convenient, and to the voltage change in Domain B, it shall operate with
main rated values and shall be used practically convenient.
However, operation with "it is convenient and safe is maintained on "practical use, it means
not resulting in the grade which shortens a life remarkably, and the characteristic, a
temperature rise, etc. do not apply correspondingly in the state of rating. Moreover, main
rating shows rated torque (N･m).
Fig. 3.1 Change region of the voltage and frequency
(It applies only to the voltage)
3.6 Checking Operation After Installation
１）Make sure that power is turned “OFF” before connecting the power cord to a power source that meets
the voltage requirement for motor.
Caution: Always use a power cord that meets the voltage and current requirements.
２）Turn “ON” the power to check that the vacuum pump is working.
３）After the pump has been checked, turn “OFF” the power.

６
3.7 Piping
1) Install piping carefully to prevent leaks.
2) Make sure to fix the suction/exhaust tube to the suction/exhaust outlet at the torque of 6 N·
m. If it is tightened at a higher torque, the suction/exhaust outlet may get damaged.
3) Ensure that piping connected to the outlet does not cause back pressure. Maximum back
pressure is 0.03 MPa (gauge pressure).
4) In case of selecting the inlet pipe and exhaust pipe that are not from our products, please
select the exhaust pipe that has same or larger inner diameter length with the inlet pipe.
5) When evacuating a vessel, ensure that a shut-off valve is placed between the pump inlet
pipe and the vessel (see Fig.3.2). Also, please use a leak valve to prevent start-up failure
due to vacuum start.
Fig.3.2 Example of Piping Used When Evacuating a Vessel
3.8 Storage
Always store in a dry place.
4.Cautions for Operation
4.1 Cautions for Operation
See Danger (1)(2), P04
See Warning (7)(15)(16), P04 to P05
See Caution (3)(4)(5)(6), P06
See Note (4)(5)(6)(7)(8)(9), P07
4.2 Starting in Cold Weather
Cold weather will increase the viscosity of bearing grease and harden diaphragms, resulting
in the pump being difficult to start.
Make sure to use it in within the operating temperature range.
Vacuum pump
Filter
Leak valve
Shut-off valve
Vessel
!
Warning
!
Caution
!
Note
!
Danger

７
5.Pump Performance
5.1 Pressure Achieved
The term “pressure achieved” as employed in the catalogue and in this manual is defined as
“the minimum pressure obtained by the pump without introduction of gas from the pump inlet .
Note that the indicator values for pressure may differ between types of vacuum gauges.
Pressure achieved in practice, occasionally becomes higher than that noted in the catalogue
for the following reasons.
(1)The fact that the vacuum gauge is mounted a distance from the pump, the steam generated
by water droplets and rust etc on the inside walls of the pump and piping, and a variety of
gases present in the system result in increased pressure.
(2)Leaks into the vacuum system introduce other gases, resulting in increased pressure.
5.2 Evacuation Rate
The rate of evacuation for the pump varies with the type of gas entering the inlet, and its
pressure. The maximum rate of evacuation is reached when air is introduced, and decreases
slightly as pressure is reduced.
The resistance of the piping system increases with small bore piping which extends over long
distances, and this reduces the rate of evacuation.
The declared rate of evacuation for this pump is the maximum value achieved with dry air.
5.3 Power Requirements
The power required to drive the pump is the total of the work required to overcome the
rotational resistance of the pump (mechanical work), and the work required to compress the air
(compression work), and is at a maximum at an inlet pressure of 4×104 ~6×104Pa. At
pressures below this range the compression work is considerably reduced and power is
expended in mechanical work.

８
6.Maintenance, Inspection, and Repair
6.1. Cautions for Maintenance, Inspection, and Repair
See Danger (3), P04
See Warning (5)(17) (18)(19), P04 to P05
See Caution (8)(9), P06
See Note (10), P07
Maintenance and repair by the customer’s repair technician is limited to the following
procedures. Do not undertake other repairs, or make modifications other than the standard
options supplied by the manufacturer.
１）Diaphragm Replacement
２）Head Gasket Replacement
３）Suction/Exhaust Valve Replacement
6.2 Maintenance
The following checks are required at least once every three days during operation.
(1)Check for abnormal noises.
(2)Check for abnormal heating of the pump.
(3)Check that gas is discharged normally.
If a problem is found, take the measures described in 6.5 Troubleshooting List.
6.3 Regular Inspections
Inspect consumables after the first 10000 hours of operation, and replace and clean in
accordance with the Replacement and Cleaning Guide on the following page. Refer to 6.4
Replacing and Cleaning Consumables for procedures.
Request replacement by the manufacturer’s service division if a repair technician is not
available.
!
Danger
!
Warning
!
Caution
!
Note