LEYBOLD LV 140 User manual

Part Numbers
115080V15 / 30 / 35 / 40
115140V15 / 30 / 35 / 40
115250V15 / 30 / 35 / 40
LEYVAC
LV 80, LV 140, LV 250
Dry Compressing Vacuum Pumps
Operating Instructions 300407956_002_C1

Contents
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Page
0 Important Safety Information 5
Explanation of Warning Symbols 5
0.1 Mechanical Hazards 7
0.2 Electrical Hazards 8
0.3 Thermal Hazards 9
0.4 Hazards Caused by Materials and Substances 10
0.5 Ignition Risk 11
0.6 Noise Hazard 11
0.7 Dangers in Connection with safety-related
Measures and Precautions 12
0.8 Danger of Pump Damage 12
1 Description 14
1.1 Pump Module 14
1.2 Supplied Equipment 19
1.3 Technical Data 20
1.4 Ordering Information 22
2 Transport and Storage 23
3 Installation 25
3.1 Ambient Requirements and Placement 25
3.2 Conforming Use 26
3.2.1 Non-conforming Use 26
3.3 Connecting the Intake and Exhaust Lines 28
3.3.1 Intake Lines 28
3.3.2 Exhaust Lines 28
3.4 Connecting Cooling Water 30
3.4.1 Water Quality 30
3.5 Purge Gas Piping 31
3.6 Electrical Connection 32
3.6.1 Standard- and C-Type Pumps 33
3.6.2 CC-Type Pumps 35
3.6.3 Checking the Direction of Rotation 37
3.6.4 Connecting an external Frequency Converter 37
3.7 Mounting Accessories 40
3.7.1 Roots Pump Adapter 40
3.7.2 Non-return Valve and Silencers 42
3.7.4 Gas Ballast Kit (option) 44

Contents
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Original installation and operating instructions.
4 Operation 46
4.1 Before Starting 46
4.1.1 Pumping of monoatomic Gas 47
4.2 Stop Pump 48
4.3 Venting 48
4.4 Removing from Service 49
5 Maintenance 51
5.1 Leybold Service 51
5.2 Maintenance Intervals 51
5.3 Exchanging the Lubricant 53
5.4 Exhaust Piping Connector 54
5.5 Pump Inlet Flange 54
5.6 Purge Gas Pressure and Flow Regulator 55
5.7 Cooling Water Piping 55
5.8 Coolant Level 55
6 Troubleshooting 56
6.1 Pump Malfunctions 56
6.1.1 Malfunctions with CC-type Pumps 56
6.2 Malfunctions with Frequency Converter Operations (option) 56
7 Waste Disposal 59
EC Declaration of Conformity 60
Declaration of Contamination 61
Page

Safety Information
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Obligation to Provide Information
Before installing and commissioning the pump, carefully read these
Operating Instructions and follow the information so as to ensure optimum
and safe working right from the start.
The Leybold LEYVAC has been designed for safe and efficient operation
when used properly and in accordance with these Operating Instructions. It is
the responsibility of the user to carefully read and strictly observe all safety
precautions described in this section and throughout the Operating
Instructions. The pump must only be operated in the proper condi-
tion and under the conditions described in the Operating
Instructions. It must be operated and maintaine d by trained personnel
only. Consult local, state, and national agencies regarding specific require-
ments and regulations. Address any further safety, operation and/or mainte-
nance questions to our nearest office.
DANGER indicates an imminently hazardous situation which, if not avoid-
ed, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to notify users of installation, operation, programming or
maintenance information that is important, but not hazard related.
We reserve the right to alter the design or any data given in these Operating
Instructions. The illustrations are not binding.
Retain the Operating Instructions for further use.
NOTE
DANGER
WARNING
CAUTION
NOTICE

Safety Information
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0 Important Safety Information
Explanation of Warning Symbols
Toxic gases
Danger of explosion
Fire danger
Reactive or corrosive
media
Contaminated parts
The pump must be leaktight.
When the pump has been used to
pump hazardous gases before,
introduce appropriate safety pre-
cautions before opening it. Before
opening the pump, purge it for a
longer period of time with an inert
gas. If necessary, wear gloves,
breathing protection or protection
clothing.
Hazardous Voltage
Disconnect power before opening.
Contact causes electrical shock.
High Leakage Current
Earth connection essential before connecting supply.
Electrical Hazards
Danger of residual voltage for up to 5 min after disconnecting power
supply. Connect and disconnect the mains plug only in deenergized
condition.
Hot Surface
Do not touch.
Allow this area to cool before servicing.
Burn hazard
Hot Surface inside. Do not touch, wear protective equipment.

Safety Information
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Purge gas
Check compatibility with applications
Overpressure in the discharge line
Components can be thrown in all directions.
The pressure in the discharge line must not exceed atmospheric
pressure by 300 mbar max.
The discharge line must not be blocked or restricted.
Pumps with wheels
must only be placed and moved on levelled horizontal surfaces!
Vacuum
Avoid exposing any part of the human body to the vacuum.
Machinery starts automatically
Connect the pump so that it not will restart automatically after a mains
power failure, once the power returns.
Overhead load
Transport the pump only secured with a forklift. Only qualified personnel
are allowed to unload and lift the pump. When elevating the pump, no
personnel should be under the object.

Safety Information
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0.1 Mechanical Hazards
1 In order to avoid the destruction of systems and injury to operating
personnel we urgently recommend to observe the information and
installation information provided in these Operating Instructions.
2 Avoid exposing any part of the human body to the vacuum.
3 Do not operate the pump with an opened intake port. There exists the
risk of suffering injury.
4 The pump is intended for generating a vacuum only. If an overpres-
sure can occur in the pump and the system then they must be pro-
tected against such an overpressure by an overpressure safety valve,
for example.
5 The maximum permissible discharge pressure for the LEYVAC is
1.3 bar abs.
We recommend to operate the pump with a silencer or a connected
discharge line. The pressure in the discharge line must not exceed
atmospheric pressure by 300 mbar max.
Make sure that the gas flow at the discharge is not blocked or restrict-
ed in any way, even when the pumped out gases need to be collected
or contained.
No shutoff devices are required in the discharge line for pump opera-
tion. If shutoff devices are installed, open them before starting the
pump.
In the case of processes involving much condensate, we recommend
the installation of a condensate separator in the discharge line.
6 Protect the purge gas supply so that in the event of a malfunction or
power interruption no overpressure can occur within the pump system.
7 We recommend to design the discharge line in consideration of a pos-
sible overpressure of 5 bar. In the event of a malfunction, such a pres-
sure can occur briefly.
8 For transporting the pump use only suitable transport means.
When selecting the lifting and transport means take note of the total
weight before transporting the pump.
Only the qualified personnel are allowed to unload and lift the pump.
When elevating the pump, no personnel should be under the object.
As standard the pump has been equipped with a single crane eye.
When transporting the pump with a forklift or similar, ensure that the
pump has been secured on the forks or on a suitable pallet.
Alternatively use two nylon slings as hoisting devices.
Be careful not to overturn the pump when pushing or pulling the pump
sideways.
WARNING

Safety Information
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9 Select the location where the pump is installed so that all controls can
be easily accessed. Place the pump only on a floor which is level. It
can topple when it is tilted by more than 10° with respect to the verti-
cal axis.
For pumps on castors only
Because of the fitted castors, the pump must only be placed on a level
floor capable of supporting the pump’s weight, as otherwise there
exists the risk of the pump rolling away. Moreover, the pump may only
be moved on a level floor! Moving the pump along sloping paths or
ramps is prohibited! The pump must only be transported with a forklift
or a crane! At the installation location, screw down the adjustable feet.
10 Before beginning with any maintenance and servicing work always
ensure that no gas can flow backwards through the pump since
then the rotors might turn against the normal direction of rotation. For
this reason vent the vacuum chamber to the discharge pressure level
or ensure through suitable valves that the vacuum chamber and the
lines are reliably separated from the pump. When connecting several
pump systems, pressure differences between inlet and discharge can
give rise to uncontrolled turning of the pump’s shafts.
11 During operation, the cooling water circuit must not be shut off. A
cooling water discharge which has been blocked can cause the for-
mation of gas bubbles and result in excessively high pressures.
12 Lay electric feed and cooling water lines so that there is no risk of trip-
ping over these.
13 When changing the oil remove any escaped oil as otherwise there is
the risk of slipping.
14 Before doing installation work on the pump system make sure that no
vacuum is present in the pump and that all media connections have
been depressurised.
15 Before disassembling any cooling water lines, leave the pump to cool
down, shut off the feed line.
0.2 Electrical Hazards
1 The electrical connection must only be provided by a trained person.
Observe the national regulations in the country of use like EN 50110-1
for Europe, for example.
2 Potentially lethal voltages are present at the mains connections. Before
beginning with any maintenance or service work on the pump, discon-
nect the pump from all power supplies (lockout/tagout).
3 Install a device for a safe disconnection from the power supply.
4 High electric voltages! When touching parts at high electric voltages,
there is the risk of suffering severe injuries by an electric shock! Covers
marked with this symbol must only be opened by trained electricians
after having reliably deenergised (lockout/tagout) the equipment.
5 Always operate the pump with a properly connected protective earth
conductor and make sure that the motor casing is closed.
DANGER

Safety Information
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6 The pump must only be operated at the frequency specified for the
motor.
7 After having connected the motor and each time after having made
changes to the wiring, check the motor’s direction of rotation.
A wrong direction of rotation can cause a pressure buildup on the
intake side. Moreover, the pump may suffer severe damage.
8 Install a suitable motor protection for the electric motor before starting
up for the first time. Note the information in these Operating
Instructions and on the nameplate.
9 Before starting, check to ensure that the junction box is undamaged,
run a visual inspection on on the seals.
10 Install add-on parts (pressure switches, for example) without any
mechanical tensions and protect these against being damaged by
impacts, for example.
11 Lay the connecting lines so that these cannot be damaged. Protect
the lines against humidity and contact with water. Avoid thermally
stressing the lines by unfavourable laying. Comply with the required
standards when designing and laying the electrical connections.
12 Provide strain relief for the connecting lines so that the plugs and the
line connectors are not subjected to excessively high mechanical
stresses.
13 Lay electric feed lines so that there is no risk of tripping over these.
14 The pump must be integrated in the system control arrangement so
that it can not run-up automatically after it has been shut down due to
overtemperature. This applies equally to emergency shut-down
arrangements. After having determined the fault cause, the pump
should be switched on manually again.
0.3 Thermal Hazards
1 Under certain ambient conditions parts of the the pump may attain
temperatures over 80 °C. There then exists the risk of suffering burns.
Note the danger symbols on the pump and in the case of a hot pump
wear the required protection equipment. All work on a pump which is
“still warm from operation” should be done only whilst wearing protec-
tive gloves.
2 Handle the pump only while vented and after having let it cool down.
3 Before disassembling any cooling water lines, leave the pump to cool
down, shut off the feed line.
4 When uninstalling the cooling water lines, take note of splashing water.
Heated water can cause burns.
5 Never remove the oil-fill or oil-drain plugs while the pump is running.
There exists the risk of suffering burns. Always wear protective gloves
and protective goggles also for protection against the oil.
CAUTION

Safety Information
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6 Operating the pump with less than the specified amount of cooling
water will result in excessively high surface temperatures. Moreover,
there exists the risk of suffering burns.
0.4 Hazards Caused by Materials and Substances
1 The vacuum line must be leaktight. Hazardous process gases may
escape or the pumped gases can react with air or atmospheric humid-
ity. After installation of the pump and after servicing work on the vacu-
um system, a leak search will always be necessary.
When pumping toxic, corrosive and reactive gases we recommend a
leak search on a regular basis. Leaks in the pump cannot be ruled out
under all circumstances. When pumping hazardous gases, the opera-
tor must ensure that that leaks at the pump will not be a hazard.
2 Before commissioning the pump, make sure that the media which are
to be pumped are compatible with each other so as to avoid hazard-
ous situations.
All relevant safety standards and regulations must be observed.
3 If required additional monitoring of the purge gas quantities is neces-
sary from the side of the operator when a well-defined and ensured
dilution is necessary from the side of the process.
The type of protection depends on the specific process and needs to
be assessed by of the customer.
4 The cooling water from the return is not of drinking water quality and
should not be used for this purpose.
After having operated the pump, the cooling water lines may suffer
from microbiological contamination. Take appropriate safety precau-
tions.
5 Before operating the pump with a gas ballast or a purge gas check the
compatibility of the gas with the pumped media so as to avoid danger-
ous conditions during operation.
6 Secure the purge gas supply so that in the event of a malfunction no
overpressure can occur in the system.
7 When the pump has been used to pump hazardous gases before,
introduce appropriate safety precautions before opening the intake or
the discharge connections. Before opening the pump, purge it for a
longer period of time with an inert gas. If necessary, wear gloves,
breathing protection or protection clothing and work under a fume
hood. Firmly seal off the pump. When shipping the decontaminated
pump for servicing please also indicate the type of hazard. For this see
Section 5.1 Service at Leybold.
8 Leybold is not in a position to perform servicing (repairs) and waste
disposal of radioactively contaminated pumps. Both needs to be
ensured from the side of the user.
DANGER

Safety Information
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9 When disposing of the pump, used lubricants and used oil filters
observe the applicable environment regulations.
10 When pumping hazardous gases you must assume the presence of
hazardous residues in the pump.
11 If the pump has been contaminated by the process or through envi-
ronmental influences, it must be decontaminated professionally.
Contaminated parts can be detrimental to health and the environment.
Before beginning with any repair and maintenance work inform yourself
about any possible contamination. When handling contaminated parts
observe the pertinent regulations and comply with the necessary pro-
tection measures.
When shipping contaminated pumps which require approval by the
authorities, note the applicable regulations regarding packaging and
shipping.
12 Some pumps use perfluoropolyether (PFPE) as lubricant.
When handling PFPE you should observe the following:
During thermal decomposition at temperatures over 290 °C toxic and
corrosive gases are released. When handling PFPE keep it way from
open fires. Do not smoke with PFPE on your fingers.
Touch the inner sections of the pumps only while wearing clean gloves,
and use clean tools;
do the necessary work in clean and dry rooms;
after having removed the pump from its packaging, start it up as
quickly as possible;
as cleaning agents solvents based on hydrofluorether compounds may
be used.
13 Fluoropolymers are used as sealants (FKM) and as lubricants (PFPE) in
the pumps. In case the pump suffers a severe mechanical failure, or is
misused, or was exposed in a fire, the possibility of hazardous sub-
stances being released owing to their thermal decomposition cannot
be excluded. Do not touch or inhale these thermal breakdown prod-
ucts of fluorinated materials.
0.5 Ignition Risk
The standard version of the pump must not be used to pump potentially
flammable atmospheres and is not suited for operation in explosion hazard
areas. Contact us before planning to use the pump under such circum-
stances.
0.6 Noise Hazard
The noise level of the pump during ultimate pressure operation with silenc-
er or connected discharge line corresponds to the values stated in the
Technical Data. In other operating modes and with other equipment, higher
values must be expected. Make sure that suitable protection measures are
taken to protect your hearing.
We recommend to wear hearing protectors (earmuffs), if local noise levels
exceed mandatory limits.
DANGER
CAUTION

Safety Information
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0.7 Dangers in Connection with safety-related
Measures and Precautions
Take note of the warning information on the casing surface. If this warning
information was removed, covered or obstructed, then provide corre-
sponding additional warning information.
0.8 Danger of Pump Damage
1 Select an installation site for the pump so that all controls are easily
accessible.
2 The pumps are supplied filled with PFPE (LVO 410) or synthetic oil
(LVO 210). For this reason they should, while being transported or
shipped, not be subjected to tilting by more than 10° with respect to
the horizontal axis. Store the pumps only horizontally standing on their
feet.
3 When pumping dust containing media, install a dust filter in the pro-
cess gas flow upstream with respect to the pump.
4 When connecting the pump, provide a suitable valve on the intake side
for the purpose of shutting off the intake line so as to prevent the
pump from turning backwards in the event of a power failure.
Otherwise the pump may suffer damage or oil may contaminate the
pump chamber.
5 Lines and other vacuum connections should be clean and free of oil.
Special attention must be paid here when oil-sealed pumps have been
used on the vacuum side. Check the conditions before initial commis-
sioning. In the case of deviations, the pump can suffer contamination
with oil residues.
6 The pressure within a pump which has been switched off will increase
to ambient pressure within a few seconds. In such a case the pump is
vented through the discharge. We recommend to fit a nonreturn dis-
charge valve.
7 The discharge line should be laid so that it slopes down and away
from the pump so as to prevent condensed vapours from backstream-
ing into the pump.
8 In the case of wet processes we recommend the installation of liquid
separators, upstream and downstream of the pump so as to avoid
the influx of liquid into the pump.
CAUTION
NOTICE

Safety Information
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9 During installation work on the intake and discharge lines do not sub-
ject flanges to any stresses. Check the rubber elements of the pump’s
feet as to any deformation.
10 Before pumping condensable vapours the pump should be at oper-
ating temperature. If a gas ballast is present, then it should be opened.
The pump will attain its operating temperature approximately 120 min-
utes after having started the pump. During this warm-up phase, the
pump should be left separated from the process by a valve in the
intake line, for example.
11 If condensable vapours have been pumped, the pump should before
switching off be purged with an inert gas or air (depending on the spe-
cific application). This process should also be run before cleaning the
pump chamber.
12 For shutting down the pump let the pump operate idle for at least 30
minutes. Disconnect the pump from the mains power. Place desiccant
into the intake flange and into the discharge flange and blank off the
flanges with a piece of foil.
When storing the pump for a longer period of time, drain out the oil
first. Package the pump airtight in polyethylene foil.
13 Improper maintenance or repair work can have an influence on the
service life and the performance of the pump and will void any warran-
ty claims.
14 Maximum cooling water pressure: 7 bar. When exceeded, there is
the risk of leaks.
Pressures given in bar or mbar are absolute values. If exceptionally a gauge
pressure is meant, a “g” is added (bar(g)).

Description
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1 Description
1.1 Pump Module
Members of the LEYVAC vacuum pump family are of the dry compressing
single stage screw vacuum pump type. All LV models are positive displace-
ment rotary pumps. During operating, the pump rotors are not in contact to
each other; therefore, there is no need of grease for lubricating or for sealing
the vacuum chamber. Thus, concerns in respect to oil dust backflows are not
applicable.
The pumps are water cooled and they are lubricated with PFPE (LVO 410) or
synthetic oil (LVO 210). Their purge gas system is equipped with a
24V-operated magnetic valve for both rotor purge and shaft seal purge, with
an additional manually operated valve fitted to the rotor purge line. There are
three different model types to be distinguished: The uncovered LEYVACs, the
C-type pumps with a cover installed, and the CC-type, equipped with covers
and an additional controller box.
Fig. 1.1 LEYVAC LV 80; LEYVAC LV 140 and LV 250 similar

Description
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2524
23
22
21
1918171615
14
13
12
11
10
123456789
Fig. 1.2 LEYVAC LV 80 Pump Configuration; LEYVAC LV 140 and LV 250 similar
1. Castor
2. Expansion Vessel
3. Oil Level Indicator
4. Gear Box Cooler
5. Pump Outlet (Side)
6. Cooler
7. Casing Temperature Sensor
8. Shock-absorping Pad
9. Height-adjustment Foot
10. Pump Frame
11. Oil Level Indicator
12. Oil Box
13. Casing
14. Pump Inlet
15. Main Cooler
16. High Pressure Side Plate
Fig. 1.3 Cooling Water System
17. Gear Box
18. Motor
19. Front Panel
21. Cooling Water Inlet
22. Cooling Water Outlet
23. N2Gas Inlet
24. N2Pressure Regulator
25. N2Pressure Gauge
1. Cooling Water Inlet
2. Cooling Water Inlet of Motor
3. Cooling Water Outlet of Motor
4. Cooling Water Inlet of Gear Box Cooler
5. Cooling Water Outlet of Gear Box Cooler
6. Cooling Water Inlet of Main Cooler
7. Cooling Water Outlet of Main Cooler
8. Cooling Water Outlet

Description
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Cooling Water System
Fig. 1.3 shows the flow path entering at water inlet 1, cooling down the
motor (2 -> 3), the gear box (4 -> 5), the casing and the high pressure side
plate. Then it enters the main cooler (6 -> 7). After passing the main cooler at
7 the cooling water exits at outlet 8. Casing and high pressure side plate are
both cooled down by the coolant in the water jacket (indirect cooling).
There is another line between main cooler and expansion vessel, to resupply
the coolant. The expansion vessel has another pipe to balance its pressure.
There are thermal switches on motor and casing to protect the pump.
Connect the thermal switches of motor and casing to the protection circuit
of your equipment, or it might cause pump damage. With the LEYVAC CC
versions both temperature switches are connected to the CC controller. If
the CC pump is not sufficiently cooled, the pump will be switch off auto-
matically to protect it from damage.
NOTICE
Purge Gas System
Operate the pump with purge gas at all times.
The pressurized purge gas comes into the pump via the inlet. Adjust the reg-
ulation pressure (by pressure regulator) to the specified value, and supply the
correct amount of purge gas to the pump. The pressure is shown at the
pressure gauge. The purge gas piping can be divided into two sets of pipe
lines.
LEYVAC LV 80 / 140
Purge Gas
Rotor Purge
Shaft Seal Purge
24 V DC
Fig. 1.4b Purge Gas System (schematic)
LEYVAC LV 80 / 140 / 250
NOTICE
Fig. 1.4a Purge Gas System
Rotor Purge (A) -->
24 VDC Valve
Shaft Seal Purge (B) -->

Description
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Front Panel
The connectors for cooling water (outlet over inlet) are RC3/8"; the connector
for the purge gas inlet is Swagelok 1/4". The maximum pressure for the
purge gas regulator is 2 bar (0.2 MPa), and the pressure is indicated at the
pressure gauge. Refer to the Technical Data Section for adjusting process-
dependent purge gas pressures.
CC-type pumps are additionally equipped with an EMO at the controller box
to enable the user to turn off the pump in case of an emergency.
Fig. 1.5 Front Panel Layouts
1
2
3
4
5
LEYVAC LV 80 CLEYVAC LV 140 C
123
4
5
1. Pressure Gauge
2. Pressure Regulator
3. Purge Gas Inlet
4. Cooling Water Outlet
5. Cooling Water Inlet
LEYVAC LV 80 C / 250 C LEYVAC LV 140 C
Gas line (rotor purge): The main purpose is to decrease the partial pres-
sure of the process gas in the pump, to reduce corrosion due to process
gas, and to retard the accumulation of reaction byproducts. The amount of
purge gas can be adjusted by the flow regulator, and the non-return valve
can prevent the process gases from getting into the purge gas pipe line.
Gas line (shaft seal purge): The main purpose is to prevent process gas
from entering the gear box through the high pressure side plate. The purge
gas will come into the rotating shaft in the high pressure side plate through
the non-return valve.

Description
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Fig. 1.6 Pumping Speed Curves for LEYVAC LV 80
0.0
1.0
2.0
3.0
4.0
5.0
0
25
50
75
100
0.001 0.01 0.1 1 10 100
[mbar]
60 Hz Pump Speed Air 50 Hz Pump Speed Air
50 Hz Power Air 60 Hz Power Air
[m /h]
Power Consumption [kW]
Pumping Speed
Inlet Pressure
LEYVAC LV 80
Fig. 1.7 Pumping Speed Curves for LEYVAC LV 140
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0
25
50
75
100
125
150
0.001 0.01 0.1 1 10 100
60 Hz Pump Speed Air 50 Hz Pump Speed Air
50 Hz Power Air 60 Hz Power Air
Power Consumption [kW]
Pumping Speed [m
3
/h]
Inlet Pressure [mbar]
LEYVAC LV 140

Description
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1.2 Supplied Equipment
Check if all the parts attached are complete. When there is any damage, or
when components are missing, contact us immediately. All LEYBOLD vacu-
um pumps are equipped with:
■Operating Instructions
■Purge Gas Swagelok Connector
■Lubricants (already filled in)
Fig. 1.8 Pumping Speed Curves for LEYVAC LV 250
0
0.001
300
200
100
250
150
50
1
60 Hz Pump Speed Air 50 Hz Pump Speed Air
50 Hz Power Air 60 Hz Power Air
Power Consumption [kW]
Pumping Speed [m
3
/h]
Inlet Pressure [mbar]
LEYVAC LV 250
0.01 0.1 10 100 1000
14
2
8
12
10
6
4
0
Fig. 1.8a Permissible gas inlet temperature as function of the inlet pressure
Gas inlet temperature (°C)
Inlet pressure (mbar)

Description
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1.3 Technical Data
LEYVAC LV 80 140 250 Tolerance
Maximum pumping speed (50 / 60 Hz) (w/o gas ballast) 80 / 96 m3/h 125 / 145 m3/h 250 / 300 m3/h ±10 %
Ultimate partial pressure 1 x 10-2 mbar
Max. perm. inlet pressure 1050 mbar 50 Hz: 1050 mbar
60 Hz: 1050 mbar
(temporarily);
perm.: 400 mbar
Max. perm. discharge pressure (absolute) 1300 mbar
Integral leak rate 1 x 10-5 mbarl/s
Water vapour tolerance w/gas ballast 80 slm 50 / 60 Hz 20 / 30 mbar 125 / 160 mbar 30 / 37 mbar
(at 150 slm)
Water vapour capacity w/ gas ballast 80 slm 50 / 60 Hz 1.24 / 2.3 kg/h 11.5 / 18 kg/h 6.0 / 6.3 kg/h
(at 150 slm)
Perm. ambient temperature +5 to +45 °C
Storage temperature -10 to +60 °C
Noise level with silencer, at ultimate
pressure (acc. to DIN EN ISO 2151)
< 75 dB(A)
Noise level with rigid exhaust pipe, at
ultimate pressure (acc. to DIN EN ISO 2151)
< 65 dB(A) < 72 dB(A)
Relative atmospheric humidity < 95% RH non-condensing
Installation location up to 2,500 m
Cooling Water / Glycol
Mains voltage (50 Hz) Δ200 - 220 V (Standard- & C-Version, only) / Y380 - 420 V ±10 %
Mains voltage (60 Hz) Δ200 - 220 V (Standard- & C-Version, only) / Y440 - 460 V ±10 %
Frequency 50 / 60 Hz
Phases 3-ph
Rated power at 50 / 60 Hz 4.1 kW 5.5 kW 8 kW
Rated current at 50 / 60 Hz 12 A (200 V)
6 A (400 V)
16 A (200 V)
8 A (400 V)
28 A (200 V)
16 A (400 V)
Power consumption at ultimate pressure (50 / 60 Hz) 2.9 / 3.2 kW 3.9 / 4.3 kW 4.2 / 4.7 kW
Power factor cos w(400 V; 50 / 60 Hz) 0.9 / 0.92 0.89 / 0.92 0.87 / 0.93
Max. permissible speed 4,200 rpm 3,600 rpm
Min. permissible speed 1,200 rpm
IP Code IP 54
Lubricant filling LVO 210 / LVO 410
Total lubricant quantity
(low pressure side / high pressure side)
0.8 l
(0.2 / 0.6 l)
Intake flange DN 63 ISO-K
Discharge flange DN 40 KF
Materials (components in contact
with gas in the pump chamber)
grey cast iron / steel / stainless steel / FPM
Weight, approx. 280 kg
300 kg (C & CC)
300 kg
320 kg (C & CC)
320 kg
340 kg (C & CC)
Dimensions in mm (L x W x H) 814×375×550 895×400×567 1051×425×537
Water
Water connection RC 3/8"
Water temperature +15 – 30 °C