BUSCH Dolphin LX 0030 A User manual

Installation and
Operating Instructions
Vacuum Pumps
Dolphin LX 0030-0430 A
Busch GVT Ltd.
The Forge
Forge Lane
Congleton
Cheshire
CW12 4HG. England
0870151932 / 091006 / Original instructions / Modifications reserved

Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Description. . . . . . . . . . . . . . . . . . . . . . . . . 3
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . 3
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Start Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Noise Emission . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transport in Packaging . . . . . . . . . . . . . . . . . . . . . . 4
Transport without Packaging . . . . . . . . . . . . . . . . . . . 4
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Short-term Storage . . . . . . . . . . . . . . . . . . . . . . . . 4
Conservation . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation and Commissioning . . . . . . . . . . . . . . . . . . 5
Installation Prerequisites . . . . . . . . . . . . . . . . . . . . . 5
Ancillary Conditions . . . . . . . . . . . . . . . . . . . . . . 5
Layout Proposals . . . . . . . . . . . . . . . . . . . . . . . . 5
Legend: . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Once Through Operation / No Recovery . . . . . . . . . . 6
Partial Recovery . . . . . . . . . . . . . . . . . . . . . . . 6
Closed Circuit Cooling / Total Recovery . . . . . . . . . . . 7
Mounting Position and Space . . . . . . . . . . . . . . . . . 7
Suction Connection . . . . . . . . . . . . . . . . . . . . . . 8
Gas Discharge . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Connection / Controls . . . . . . . . . . . . . . . . 8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Connecting Electrically . . . . . . . . . . . . . . . . . . . . . 8
Connecting Lines/Pipes . . . . . . . . . . . . . . . . . . . . 8
Filling in Operating Liquid . . . . . . . . . . . . . . . . . . . 8
Recording of Operational Parameters . . . . . . . . . . . . . 8
Operation Notes . . . . . . . . . . . . . . . . . . . . . . . . . 9
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setting Operating Conditions . . . . . . . . . . . . . . . . . 9
Selection of Operating Liquid . . . . . . . . . . . . . . . . 9
Fresh Water Requirement . . . . . . . . . . . . . . . . . . 9
Operating Liquid Level . . . . . . . . . . . . . . . . . . . 9
Pressure Control. . . . . . . . . . . . . . . . . . . . . . . 9
Removing Contaminations and Deposits . . . . . . . . . . . . 9
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . 10
Monthly: . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Every 6 Months: . . . . . . . . . . . . . . . . . . . . . . 10
Every Year:. . . . . . . . . . . . . . . . . . . . . . . . . 10
Dismantling and Reassembly . . . . . . . . . . . . . . . . . . . 10
Dismantling . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Removal from Service . . . . . . . . . . . . . . . . . . . . . . . 10
Temporary Removal from Service . . . . . . . . . . . . . . . . 10
Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . 10
Dismantling and Disposal . . . . . . . . . . . . . . . . . . . . 10
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 12
EC-Declaration of Conformity . . . . . . . . . . . . . . . . . . . 15
Sectional Drawings and Spare Parts Lists . . . . . . . . . . . . . 16
LX 0030 A to LX 0055 A . . . . . . . . . . . . . . . . . . . 16
LX 0110 A to LX 0430 A . . . . . . . . . . . . . . . . . . . 17
Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Busch – All over the World in Industry . . . . . . . . . . . . . . 19
LX 0030-0430 A Preface
0870151932 / 091006 page 2
Preface
Congratulations on your purchase of the Busch vacuum pump. With
watchful observation of the field’s requirements, innovation and steady
development Busch delivers modern vacuum and pressure solutions
worldwide.
These operating instructions contain information for
–product description,
–safety,
–transport,
–storage,
–installation and commissioning,
–maintenance,
–overhaul,
–troubleshooting and
–spare parts
of the vacuum pump.
The operating liquid supply system is either subject to a separate docu-
mentation or to be furnished by the operator.
For the purpose of these instructions, “handling” the vacuum pump
means the transport, storage, installation, commissioning, influence on
operating conditions, maintenance, troubleshooting and overhaul of
the vacuum pump.
Prior to handling the vacuum pump these operating instructions shall
be read and understood. If anything remains to be clarified please
contact your Busch representative!
Keep these operating instructions and, if applicable, other pertinent
operating instructions available on site.

Product Description
Use
The vacuum pump is intended for
–the suction
of
–non-explosive gases and vapours
The vacuum pump may only be used as contractually agreed with
Busch. The conveyed medium, the operating liquid and the tempera-
ture ranges thereof may not be changed without written consent of
Busch.
The vacuum pump is intended for the placement in a non-potentially
explosive environment.
The vacuum pump is thermally suitable for continuous operation
(100 percent duty).
The vacuum pump is not ultimate pressure proof. Operation with a
closed (“blanked”) suction line will damage the vacuum pump.
Principle of Operation
The vacuum pump works on the fluid ring principle.
At standstill, the pump housing (g) shall be filled with an operating liq-
uid (usually water) to approx. the shaft centreline. On starting the
vacuum pump, the impeller throws the liquid to the periphery of the
housing, where it forms a liquid ring that rotates in the pump housing.
This liquid ring seals the space between the impeller (h) and the hous-
ing (g). In the 12 o’clock position the liquid ring touches the hub of the
impeller (h). As the impeller rotates counterclockwise (view from
non-drive end), the liquid ring moves away from the hub, making
space for gas to be drawn in through the intake port (e) (approx. from
the 11 o’clock to the 8 o’clock position). The chamber surrounded by
the hub, the liquid ring and two adjacent impeller blades achieves its
maximum volume in the 6 o’clock position. As the impeller continues
to rotate, the liquid ring moves closer to the impeller hub, the volume
of the chamber decreases and the enclosed gas is expelled through the
discharge port (f) (approx. from the 3 o’clock position to the 12 o’clock
position). This sequence is repeated for every chamber between two
impeller blades with each revolution.
The operating liquid also absorbs the heat of compression and conden-
sation (when conveying saturated media).
The control of the level and the temperature of the operating liquid are
essential for the satisfactory operation of the vacuum pump. The chap-
ter Installation Prerequisites (Úpage 5) gives advice and explains typi-
cal installation options.
Cooling
The vacuum pump is cooled by
–the air flow from the fan wheel of the drive motor
–the process gas
–the operating liquid
Start Controls
The vacuum pump comes without start controls. The control of the
vacuum pump is to be provided in the course of installation.
LX 0030-0430 A Product Description
0870151932 / 091006 page 3
a Suction connection
b Anti-cavitation connection
c Gas discharge
d Drain
e Suction port
f Discharge port
g Housing
h Impeller
i Liquid ring
j Service liquid inlet

Safety
Intended Use
Definition: For the purpose of these instructions, “handling” the
vacuum pump means the transport, storage, installation, commission-
ing, influence on operating conditions, maintenance, troubleshooting
and overhaul of the vacuum pump.
The vacuum pump is intended for industrial use. It shall be handled
only by qualified personnel.
The allowed media and operational limits (Úpage 3: Product De-
scription) and the installation prerequisites (Úpage 5: Installation
Prerequisites) of the vacuum pump shall be observed both by the
manufacturer of the machinery into which the vacuum pump is to be
incorporated and by the operator.
The maintenance instructions shall be observed.
Prior to handling the vacuum pump these installation and operating
instructions shall be read and understood. If anything remains to be
clarified please contact your Busch representative!
Safety Notes
The vacuum pump has been designed and manufactured according to
state-of-the-art methods. Nevertheless, residual risks may remain.
These operating instructions highlight potential hazards where appro-
priate. Safety notes are tagged with one of the keywords DANGER,
WARNING and CAUTION as follows:
DANGER_a
Disregard of this safety note will always lead to accidents with fa-
tal or serious injuries.
WARNING_a
Disregard of this safety note may lead to accidents with fatal or se-
rious injuries.
CAUTION_a
Disregard of this safety note may lead to accidents with minor inju-
ries or property damage.
Noise Emission
For the sound pressure level in free field according to EN ISO 2151
Úpage 18: Technical Data.
Transport
Transport in Packaging
Packed on a pallet the vacuum pump is to be transported with a
forklift.
Transport without Packaging
In case the vacuum pump is packed in a cardboard box with inflated
cushions:
◆Remove the inflated cushions from the box
In case the vacuum pump is in a cardboard box cushioned with rolled
corrugated cardboard:
◆Remove the corrugated cardboard from the box
In case the vacuum pump is laid in foam:
◆Remove the foam
In case the vacuum pump is bolted to a pallet or a base plate:
◆Remove the bolting between the vacuum pump and the pal-
let/base plate
In case the vacuum pump is fastened to the pallet by means of tighten-
ing straps:
◆Remove the tightening straps
CAUTION_af
Do not walk, stand or work under suspended loads.
●Attach the lifting gear to a crane hook with safety latch
●Lift the vacuum pump with a crane
In case the vacuum pump was bolted to a pallet or a base plate:
◆Remove the stud bolts from the rubber feet
Storage
Short-term Storage
●Make sure that the suction connection and the gas discharge are
closed (leave the provided plugs in)
●Store the vacuum pump
–if possible in original packaging,
–indoors,
–dry,
–dust free and
–vibration free
Conservation
In case of adverse ambient conditions (e.g. aggressive atmosphere, fre-
quent temperature changes) conserve the vacuum pump immediately.
In case of favourable ambient conditions conserve the vacuum pump if
a storage of more than 3 months is scheduled.
●Make sure that all ports are firmly closed; seal all ports that are not
sealed with PTFE-tape, gaskets or o-rings with adhesive tape
Note: VCI stands for “volatile corrosion inhibitor”. VCI-products (film,
paper, cardboard, foam) evaporate a substance that condenses in mo-
lecular thickness on the packed good and by its electro-chemical prop-
erties effectively suppresses corrosion on metallic surfaces. However,
VCI-products may attack the surfaces of plastics and elastomers. Seek
advice from your local packaging dealer! Busch uses CORTEC
VCI 126 R film for the overseas packaging of large equipment.
●Wrap the vacuum pump in VCI film
●Store the vacuum pump
–if possible in original packing,
–indoors,
–dry,
–dust free and
–vibration free.
For commissioning after conservation:
●Make sure that all remains of adhesive tape are removed from the
ports
●Commission the vacuum pump as described in the chapter Installa-
tion and Commissioning (Úpage 5)
LX 0030-0430 A Safety
0870151932 / 091006 page 4

Installation and
Commissioning
Installation Prerequisites
CAUTION_a
In case of non-compliance with the installation prerequisites, partic-
ularly in case of insufficient cooling:
Risk of damage or destruction of the vacuum pump and adjoining
plant components!
Risk of injury!
The installation prerequisites must be complied with.
●Make sure that the integration of the vacuum pump is carried out
such that the essential safety requirements of the Machine Direc-
tive 98/37/EC are complied with (in the responsibility of the de-
signer of the machinery into which the vacuum pump is to be
incorporated; Úpage 15: note in the EC-Declaration of Confor-
mity)
Ancillary Conditions
The chapter Principle of Operation (Úpage 3) describes the basic
function of a vacuum pump. This description assumes, that the liquid
ring stays liquid all the time.
Actually the condition of both the operating liquid and the conveyed
media depend on the physical conditions pressure and temperature.
At very low pressures and sufficiently high temperatures the operating
liquid can locally transfer into the vapour phase, creating bubbles
within the operating liquid. As the pressure rises towards the outlet
port (e) the bubbles collapse. This process is called cavitation. In case of
bubbles that have been located on surfaces the operating liquid cannot
intrude the cavity left by the bubble equally from all directions. Instead
the inflowing liquid hits the surface with high speed. This causes ero-
sion, which can destroy the vacuum pump rapidly. Also the formation
of bubbles deteriorates the pump performance. Cavitation is clearly au-
dible by its rumbling noise.
For a trouble-free operation the vacuum pump shall be filled with op-
erating liquid approx. up to the shaft centre before the pump is
switched on. A low liquid level deteriorates the pump performance.
A dry start causes failure of the mechanical seal on the shaft of the
vacuum pump. A start with a completely flooded housing damages the
blades of the impeller.
Once the vacuum pump is running operating liquid can be supplied.
Excess operating liquid will then be thrown out through the outlet. The
pressure of the supplied operating liquid shall not exceed the outlet
pressure of the vacuum pump by more than 0.1 bar, otherwise the
pump performance will deteriorate. The best solution is a reservoir un-
der atmospheric pressure from which the vacuum pump sucks in oper-
ating liquid automatically.
The pressure control and the operating liquid supply system of a
vacuum pump must therefore fulfill the following tasks:
–limit the operating pressure to a value at which no cavitation will
occur
–control the level in the operating liquid separator and if appropri-
ate, cool the operating liquid to a temperature at which no cavita-
tion will occur
Operating the vacuum pump close to its ultimate pressure requires
large quantities of cool operating liquid. In order to avoid cavitation it
is usually more prudent to limit the minimum working pressure.
The pressure on the suction side of the vacuum pump must not fall be-
low the minimum allowed operating pressure. Therefore it is not al-
lowed to use a pressure control the actuator of which would throttle or
even close the suction line.
The most effective measure to limit the inlet pressure is the use of a
vacuum relief valve.
The vacuum relief valve can either be installed in the suction line or on
the housing of the vacuum pump. The gas supply line of the vacuum
relief valve is usually connected to the liquid separator. Alternatively
ambient air can be used to limit the vacuum.
Feeding ambient air cools, acts against condensation or solution of pro-
cess gas in the operating liquid and therefore reduces the risk of cavita-
tion, however, it mixes the process gas with ambient air, i.e. with
oxygen, which is possibly not desired. Drawing air from the liquid sep-
arator avoids mixing with ambient air, however, this air is usually
warmer, promotes the accumulation of condensed or solved process
gas in the operating liquid, hence increasing the risk of cavitation. If
the primary task is to suck vapours, a non-condensing gas should be
selected for the admixing.
Layout Proposals
The working principle of the liquid ring is dependent upon a continu-
ous supply of clean operating liquid, which is normally water. The op-
erating liquid enters the Vacuum pump/ Compressor/ Vacuum and
pressure pump/ Blower through a connection B on the housing and is
discharged from the Vacuum pump/ Compressor/ Vacuum and
pressure pump/ Blower along with the process gas.
For the layout of an operating fluid supply system there are basically
three different models:
–Once through cooling / no recovery
–partial recovery
–closed loop / total recovery
All of these arrangements have four basic elements:
–Source of the operating liquid (from the water main or reservoir)
–Regulating device to control flow of liquid
–Means of stopping the flow when the Vacuum pump/
Compressor/ Vacuum and pressure pump/ Blower is shut off
(manual or with solenoid valve)
–Means of separating the gas-liquid exhaust mixture
Legend:
Note: The diagrams below show examples of typical installations. The
actual scope of delivery is always contractually agreed upon. Consult
the contract piping and instrument diagram for the exact scope of
delivery.
A Discharge liquid
B Operating liquid
F Fresh liquid
K Cooling liquid
U Circulation liquid
N Liquid level
S Process suction side
D Process pressure side
P Liquid ring-vacuum pump
PBCirculating pump
a Liquid separator
b Fresh liquid vessel
h Aeration connection
w Heat transmitter
VBVacuum relief valve
VFShut-off valve
VKShut-off valve
VSNon-return valve
rBRegulating valve
rC(=PC) Regulating valve (anti-cavitation)
rFRegulating valve
rF1 Regulating valve (float valve)
rF2 Regulating valve (thermostatical)
rF3 Regulating valve (pressure reducer)
rKRegulating valve (cooling water)
lBOperating liquid pipe
lcAnti-cavitation pipe (optional)
lFFresh liquid pipe
lKCooling liquid pipe
lSSuction pipe
lDDischarge pipe
lUCirculation pipe
LX 0030-0430 A Installation and Commissioning
0870151932 / 091006 page 5

ma(=Li) Level indicator
mB(=Pi) Compound (vacuum & pressure) gauge
mDPressure gauge
mt(=Ti) Thermometer
mt1 Temperature sensor to rF2
UALiquid discharge
UBConnection for operating liquid
USSuction pipe connection
UDDischarge pipe connection
UEDrain (liquid separator)
UeDrain (pump)
UUConnection for circulation liquid
Once Through Operation / No Recovery
The operating liquid is taken directly from a main supply to
the-vacuum pump. The operating liquid is separated from the gas and
wasted to a drain. No recirculation or recovery takes place. This ar-
rangement can be used where operating liquid conservation or con-
tamination are not a concern. An automatic solenoid valve can provide
for flow of operating liquid simultaneously with -vacuum pump opera-
tion (i.e. upon motor stopping, the valve closes preventing the housing
to be filled with too much operating liquid). With a manual operating
liquid shut off valve, it is important to open valve immediately after
starting the motor and to close the valve immediately before switching
the motor off.
Version with lateral liquid separator:
Version with top liquid separator:
Circuit diagram:
Alternative tank with float valve:
Partial Recovery
The operating liquid enters and leaves the vacuum pump in the same
manner as with the once through arrangement. A portion of the oper-
ating liquid is recirculated from the separator tank to the vacuum
pump. The remainder is discharged from the separator and wasted to
the drain. The fresh liquid F is introduced in sufficient quantity to main-
tain proper temperature essential for good vacuum pump performance.
This type of arrangement is used where seal liquid conservation is pos-
sible, and, if other than water is utilised, the consumption can be re-
duced by upto 50 percent depending upon the fluid vapour pressure
and temperature.
The operating liquid level in the separator/recirculation tank should be
at, or slightly below, the centreline of the pump shaft. Provisions may
also be made for high level overflow. This will help prevent starting the
vacuum pump with the housing full of water, which could overload the
vacuum pump and the drive motor.
Version with lateral liquid separator:
Version with top liquid separator:
LX 0030-0430 A Installation and Commissioning
0870151932 / 091006 page 6

Circuit diagram:
Alternative thermostatically controlled operating liquid temperature:
Closed Circuit Cooling / Total Recovery
This arrangement provides for total recirculation of the operating liq-
uid. A heat exchanger is added to remove the heat of compression,
friction and condensation from the operating liquid before it is re-intro-
duced back into the vacuum pump. For prolonged operation at suction
pressure above 300 hPa abs (300 mbar abs) a circulating pump is nor-
mally installed and mandatory at suction pressure above 400 hPa abs
(400 mbar abs) or when suction pressure varies during cycling
operations.
The operating liquid level in the separator/recirculation tank should be
at, or slightly below, the centreline of the pump shaft. Provisions may
also be made for high level overflow and low level make-up. This will
help prevent starting the vacuum pump with the housing full of water,
which could overload the vacuum pump and the drive motor.
The heat exchanger W must be capable of removing approx. 85 per-
cent of the drive power and possibly appearing condensation heat. The
heat exchanger can be waived, if the vacuum pump will be operated
for a few minutes only and cool down to ambient temperature prior to
the subsequent start.
Version with lateral liquid separator:
Version with top liquid separator:
Circuit diagram:
Mounting Position and Space
●Make sure that the following ambient conditions will be complied
with:
–ambient temperature: 5 ... 40 °C
–ambient pressure: atmospheric
●Make sure that the environmental conditions comply with the pro-
tection class of the drive motor (according to the nameplate)
●Make sure that the vacuum pump will be placed or mounted hori-
zontally
●Make sure that the base for placement / mounting base is even
●Make sure that in order to warrant a sufficient cooling there will be
a clearance of minimum 0.1 m between the vacuum pump and
nearby walls
●Make sure that no heat sensitive parts (plastics, wood, cardboard,
paper, electronics) will touch the surface of the vacuum pump
●Make sure that the installation space or location is vented such
that a sufficient cooling of the vacuum pump is warranted
CAUTION_ac
During operation the surface of the vacuum pump may reach tem-
peratures of more than 70 °C.
Risk of burns!
●Make sure that the vacuum pump will not be touched inadver-
tently during operation, provide a guard if appropriate
LX 0030-0430 A Installation and Commissioning
0870151932 / 091006 page 7

Suction Connection
CAUTION_a
Intruding foreign objects or liquids can destroy the vacuum pump.
In case the inlet gas can contain dust or other foreign solid particles:
●Make sure that the suction line fits to the suction connection (a) of
the vacuum pump
●Make sure that the line size of the suction line over the entire
length is at least as large as the suction connection (a) of the
vacuum pump
In case the length of the suction line exceeds 2 m it is prudent to use
larger line sizes in order to avoid a loss of efficiency and an overload of
the vacuum pump. Seek advice from your Busch representative!
In case the vacuum shall be maintained after shutdown of the vacuum
pump:
◆Provide a manual or automatic operated valve (= non-return
valve) in the suction line
●Make sure that the suction line does not contain foreign objects,
e.g. welding scales
Gas Discharge
Version with top liquid separator:
The discharge piping should not exceed an elevation more than
600 mm above the discharge flange (c) of the pump housing until the
liquid is separated. Too high an elevation will cause back pressure and
possible drive motor overload.
The discharged gas must flow without obstruction. It is not permitted
to shut off or throttle the discharge line or to use it as a pressurised
air source.
●Make sure that the discharge line fits to the gas discharge (c) of
the vacuum pump
●Make sure that the line size of the discharge line over the entire
length is at least as large as the gas discharge (c) of the vacuum
pump
In case the length of the discharge line exceeds 2 m it is prudent to use
larger line sizes in order to avoid a loss of efficiency and an overload of
the vacuum pump. Seek advice from your Busch representative!
●Make sure that the discharge line either slopes away from the
vacuum pump or provide a liquid separator or a drip leg with a
drain cock, so that no liquids can back up into the vacuum pump
Electrical Connection / Controls
●Make sure that the stipulations acc. to the EMC-Directive
2004/108/EC and Low-Voltage-Directive 2006/95/EC as well as
the EN-standards, electrical and occupational safety directives and
the local or national regulations, respectively, are complied with
(this is the responsibility of the designer of the machinery into
which the vacuum pump is to be incorporated; Úpage 15: note in
the EC-Declaration of Conformity).
●Make sure that the power supply for the drive motor is compatible
with the data on the nameplate of the drive motor
●Make sure that an overload protection according to EN 60204-1 is
provided for the drive motor
●Make sure that the drive of the vacuum pump will not be affected
by electric or electromagnetic disturbance from the mains; if neces-
sary seek advice from the Busch service
In case of mobile installation:
◆Provide the electrical connection with grommets that serve as
strain-relief
Installation
Mounting
●Make sure that the Installation Prerequisites (Úpage 5) are com-
plied with
●Set down or mount the vacuum pump at its location
Connecting Electrically
WARNING_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified per-
sonnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or corresponding national accident prevention
regulation.
●Electrically connect the drive motor
●Connect the protective earth conductor
Version with three-phase motor:
◆Determine the intended direction of rotation with the arrow
(stuck on or cast)
Version with mechanical seal:
●Make sure that the pump housing (g) is filled with an operating
liquid (usually water) to approx. the shaft centreline (a mechanical
seal shall not run dry)
◆“Bump” the drive motor
◆Watch the fan wheel of the drive motor and determine the di-
rection of rotation just before the fan wheel stops
If the rotation must be changed:
◆Switch any two of the drive motor wires (three-phase motor)
●Connect the switches for
- level monitoring
- temperature
- pressure
(according to the diagram)
to the system control
Connecting Lines/Pipes
●Connect the suction line
●Connect the discharge line
Installation without discharge line:
◆Make sure that the gas discharge (c) is open
●Make sure that all provided covers, guards, hoods etc. are
mounted
●Make sure that cooling air inlets and outlets are not covered or ob-
structed and that the cooling air flow is not affected adversely in
any other way
Filling in Operating Liquid
The handling of the operating liquid supply system is not subject to
these operating instructions (Úseparate documentation or furnished
by the operator).
Recording of Operational Parameters
As soon as the vacuum pump is operated under normal operating
conditions:
●Measure the drive motor current and record it as reference for fu-
ture maintenance and troubleshooting work
LX 0030-0430 A Installation and Commissioning
0870151932 / 091006 page 8

Operation Notes
Use
The vacuum pump is intended for
–the suction
of
–non-explosive gases and vapours
The vacuum pump may only be used as contractually agreed with
Busch. The conveyed medium, the operating liquid and the tempera-
ture ranges thereof may not be changed without written consent of
Busch.
The vacuum pump is intended for the placement in a non-potentially
explosive environment.
The vacuum pump is thermally suitable for continuous operation
(100 percent duty).
The vacuum pump is not ultimate pressure proof. Operation with a
closed (“blanked”) suction line will damage the vacuum pump.
CAUTION_ac
During operation the surface of the vacuum pump may reach tem-
peratures of more than 70 °C.
Risk of burns!
The vacuum pump shall be protected against contact during opera-
tion, it shall cool down prior to a required contact or heat protection
gloves shall be worn.
●Make sure that all provided covers, guards, hoods etc. remain
mounted
●Make sure that protective devices will not be disabled
●Make sure that cooling air inlets and outlets will not be covered or
obstructed and that the cooling air flow will not be affected ad-
versely in any other way
●Make sure that the installation prerequisites (Úpage 5: Installation
Prerequisites) are complied with and will remain complied with,
particularly that a sufficient cooling will be ensured
CAUTION_a
The shaft of the vacuum pump is sealed by means of a mechanical
seal.
Starting the vacuum pump without operating liquid will result in
mechanical seal failure.
Never start the vacuum pump without operating liquid.
Setting Operating Conditions
Selection of Operating Liquid
Water is usually used as operating liquid for the conveyance of air and
other inert gases. Other ring liquids may be used in order to comply
with the selected gases and separation methods.
The kinematic viscosity at operating temperature shall not exceed
2 mm²/s. Higher viscosities require increased drive power. The vapour
pressure of the ring fluid in case of vacuum operation shall not exceed
16 mbar. Higher vapour pressures deteriorate the suction capacity and
the ultimate pressure as stated in the performance tables or curves
resp. In case of use of ring liquids other than water confirmation of the
vacuum pump’s conveying characteristics shall be sought from Busch.
If liquids get conveyed together with the process gas (three to five
times the quantity of the circulating liquid rate as given in the
datasheet) the addition of fresh liquid can be reduced significantly.
Condensation of vapour inside the vacuum pump can cause cavitation
and destroy components of the vacuum pump. Condensation up-
stream of the vacuum pump (jet or surface condenser) shall therefore
be preferred. Under certain conditions the accumulating condensate
can be conveyed along by the vacuum pump. Otherwise a separate
liquid pump must be provided for. The design shall be performed by
the manufacturer/supplier.
The suction capacity (or volume flow) as given in the performance ta-
ble is achieved at an operating water temperature of 15 °C. Operation
at higher water temperatures leads to a reduced suction capacity (or
volume flow), but leaves the option to save fresh water or cooling liq-
uid in case of open or closed circuit cooling. This liquid rate shall be set
by means of the regulating valve rFor rBonly to such a quantity, that
the required suction capacity (or volume flow) is achieved. The regulat-
ing valve shall be locked in this position.
Fresh Water Requirement
Fresh water flow rate requirements are shown in the technical data
section Úpage 18. The data given applies to once through operation.
These water flow rates result in approximately a 5.5 °C rise in tempera-
ture for a single stage vacuum pump, and a 2.7 °C rise for a two stage
vacuum pump when handling dry air. Condensable vapours in the gas
stream, however, will add to the heat load and cause a higher temper-
ature rise through the vacuum pump.
Partial recovery flow rates may be reduced by up to 50 percent de-
pendant upon temperature rise through the vacuum pump (see above
comment).
If operating speed is varied from the given values, the flow rate re-
quirements vary accordingly.
Operating Liquid Level
Note: The options to check the level depend on the installation. In case
the installation provides no means for level check, undo the plug. Ex-
cess operating liquid will then flow out of the port. If necessary fill in
operating liquid, until it reaches the bottom edge of the port. Reinsert
the plug prior to starting the vacuum pump.
CAUTION_a
Starting the vacuum pump with a completely flooded housing can
bend the blades of the rotor.
The operating liquid shall reach the middle of the shaft only when
the vacuum pump is to be started.
●Make sure that the operating liquid reaches the middle of the shaft
when the vacuum pump is to be started
Pressure Control
At very low pressures and sufficiently high temperatures the operating
liquid can locally transfer into the vapour phase, creating bubbles
within the operating liquid. As the pressure rises towards the outlet slot
the bubbles collapse. This process is called cavitation. In case of bub-
bles that have been located on surfaces the operating liquid cannot in-
trude the cavity left by the bubble equally from all directions. Instead
the inflowing liquid hits the surface with high speed. This causes ero-
sion, which can destroy the vacuum pump rapidly. The formation of
bubbles also deteriorates the pump performance. Cavitation is clearly
audible by its crackling noise.
The working pressure of the vacuum pump shall therefore be suffi-
ciently above the vapour pressure of the operating liquid. In particular
the pressure control in the vacuum system must by no means be
achieved by throttling or even closing of the suction line!
The vapour pressure of the operating liquid and consequently the ulti-
mate pressure can be reduced by cooling. However, this increases the
cooling water flow considerably. In most cases the low ultimate pres-
sure is not required and cavitation shall be avoided by means of vac-
uum limitation rather than cooling.
Removing Contaminations and Deposits
●In closed operating liquid circuits with water use softened water
●Make sure that no dirt particles with a diameter larger than
0.1 mm will intrude the vacuum pump, neither via the process gas
nor via the operating liquid. Filter out larger dirt particles before
the vacuum pump.
LX 0030-0430 A Installation and Commissioning
0870151932 / 091006 page 9

The dirt concentration shall not exceed 5 volume percent.
Maintenance
DANGER_age32
In case the vacuum pump conveyed gas that was contaminated
with foreign materials which are dangerous to health, harmful ma-
terial can reside in filters.
Danger to health during inspection, cleaning or replacement of fil-
ters.
Danger to the environment.
Personal protective equipment must be worn during the handling
of contaminated filters.
Contaminated filters are special waste and must be disposed of
separately in compliance with applicable regulations.
CAUTION_ac
During operation the surface of the vacuum pump may reach tem-
peratures of more than 70 °C.
Risk of burns!
●Prior to disconnecting connections make sure that the connected
pipes/lines are vented to atmospheric pressure
Maintenance Schedule
Monthly:
●Check for audible abnormal noise, e.g.:
–Excessive rumble (possible cavitation problem)
–Periodic click/knock (possible mechanical contact / bearing degra-
dation)
Version with mechanical seals:
–Mechanical seal squealing noise (possible lack of lubrication)
●Check for excessive vibration
Vibration should be less than 5.5 mm/s RMS when measured in
the axial, vertical radial and vertical horizontal planes on the bear-
ing housing.
●Check the operating liquid temperature
(with a hand held probe or a permanent gauge, if fitted; consult
the order documentation for the specified operating liquid temper-
ature)
●Check the bearing temperature
(with a hand held probe or a permanent gauge, if fitted; at 25 °C
ambient temperature the bearing temperature should not exceed
60 °C (operating liquid = water) or 80 °C (operating liquid = oil);
for other ambient temperatures adjust accordingly)
●Check that the vacuum pump achieves the usual/specified vacuum
level
●Check all pipe work for leakage
Version with mechanical seals:
●Check the mechanical seals for leakage
●Make sure that the vacuum pump is shut down and locked against
inadvertent start up
In case of operation in a dusty environment:
◆Clean as described under Úpage 10: Every 6 Months:
Every 6 Months:
●Make sure that the housing is free from dust and dirt, clean if nec-
essary
●Make sure that the vacuum pump is shut down and locked against
inadvertent start up
●Clean the fan cowling, the fan wheel, the ventilation grille and the
cooling fins
Every Year:
●Make sure that the vacuum pump is shut down and locked against
inadvertent start up
In case an inlet screen is installed:
◆Check the inlet screen, clean if necessary
Dismantling and Reassembly
Note: Complete disassembly is seldom necessary and the vacuum
pump need only be disassembled to the point required to repair or ser-
vice it.
See the sectional drawings for cross-reference.
Dismantling
●Disconnect from electrical supply and process piping
●Drain as much operating liquid from the vacuum pump as possible
●Remove the end casing (106.7)
Note: Removing the inspection cover (704.3) allows inspection / re-
placement of the valve plate flap (742.1). This can be done without re-
moving the end casing and allows inspection of the vacuum pump
condition before complete strip down.
●Remove valve plate retainer (742.0) to free the valve plate
flap (742.1)
Reassembly
The vacuum pump is built up in reversal of the dismantling instructions.
●Clean all parts thorougly before commencing rebuild
●Secure the valve plate flap into the end casing using the retainer.
Ensure the valve plate flap covers all the holes in the end casing
●Fit inspection cover and gasket to end casing
●Fit the end casing ensuring location is achieved using dow-
els (562.0). Using gasket sealent between the joints
Overhaul
Busch service will only accept vacuum pumps that come with a com-
pletely filled in and legally binding signed “Declaration of Contamina-
tion” (form downloadable from www.busch-vacuum.com).
Removal from Service
Temporary Removal from Service
●Prior to disconnecting pipes/lines make sure that all pipes/lines are
vented to atmospheric pressure
In case water is being used as operating fluid and the ambient temper-
atures can fall below 0 °C or the vacuum pump is scheduled to be shut
down for more than 12 weeks:
◆Drain the water
In case water is being used as operating fluid, the ambient tempera-
tures can fall below 0 °C and the water is not meant to be drained:
◆Make sure the water sufficiently provided with antifreeze
Recommissioning
●Observe the chapter Installation and Commissioning (Úpage 5)
Dismantling and Disposal
●Make sure that materials and components to be treated as special
waste have been separated from the vacuum pump
LX 0030-0430 A Maintenance
0870151932 / 091006 page 10

●Make sure that the vacuum pump is not contaminated with harm-
ful foreign material
According to the best knowledge at the time of printing of this manual
the materials used for the manufacture of the vacuum pump involve
no risk.
●Dispose of the vacuum pump as scrap metal
Spare Parts
When ordering spare parts from Busch please quote the following:
- Pump type / model number
- Pump serial number
- Pump ID number
- Part number
- Description of part
LX 0030-0430 A Spare Parts
0870151932 / 091006 page 11

Troubleshooting
WARNING_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified personnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or equivalent national accident prevention regulation.
CAUTION_ac
During operation the surface of the vacuum pump may reach temperatures of more than 70 °C.
Risk of burns!
Let the vacuum pump cool down prior to a required contact or wear heat protection gloves.
Problem Possible Cause Remedy
The vacuum pump does not reach the usual
pressure
The drive motor draws a too high current
(compare with initial value after commission-
ing)
Evacuation of the system takes too long
The vacuum system or suction line is not
leak-tight
Check the hose or pipe connections for possi-
ble leak
The operating liquid is too warm
(the characteristic curves are based on 15 °C
warm water as operating liquid, with higher
temperatures the achieved pressure and the
flow rate deteriorate)
Reduce the temperature of the operating liq-
uid
The mechanical seal leaks Replace the mechanical seal
Gas or liquid channels are blocked Dismantle and clean the vacuum pump
In case a screen is installed in the suction
connection (a):
The screen in the suction connection (a) is
partially clogged
Clean the screen
If cleaning is required too frequently install a
filter upstream
The filter on the suction connection (a) is par-
tially clogged
Clean or replace the inlet air filter, respectively
Partial clogging in the suction, discharge or
pressure line
Remove the clogging
Long suction, discharge or pressure line with
too small diameter
Use larger diameter
Internal parts are worn or damaged Repair the vacuum pump (Busch service)
The gas conveyed by the vacuum pump smells
displeasing
Process components evaporating under vac-
uum
Check the process, if applicable
The vacuum pump does not start The drive motor is not supplied with the cor-
rect voltage or is overloaded
Supply the drive motor with the correct volt-
age
The drive motor starter overload protection is
too small or trip level is too low
Compare the trip level of the drive motor
starter overload protection with the data on
the nameplate, correct if necessary
One of the fuses has blown Check the fuses
Version with alternating current motor:
The drive motor capacitor is defective
Repair the drive (Busch service)
The connection cable is too small or too long
causing a voltage drop at the vacuum pump
Use sufficiently dimensioned cable
LX 0030-0430 A Troubleshooting
0870151932 / 091006 page 12

The vacuum pump or the drive motor is
blocked
Make sure the drive motor is disconnected
from the power supply
Remove the fan cover
Try to turn the drive motor with the vacuum
pump by hand
If the vacuum pump is blocked:
Repair the vacuum pump (Busch service)
The drive motor is defective Replace the drive motor (Busch service)
The vacuum pump is blocked Solid foreign matter has entered the vacuum
pump
Repair the vacuum pump (Busch service)
Make sure the suction line is equipped with a
screen
If necessary additionally provide a filter
Corrosion in the vacuum pump from remain-
ing condensate
Repair the vacuum pump (Busch service)
Check the process
Corrosion between the rotor (h) and the hous-
ing (g)
Eliminate by use of anti-rust liquid
Ice in the vacuum pump
The operating liquid is congealed
Carefully warm up the vacuum pump
Defrost the operating liquid
Version with three-phase motor:
The vacuum pump was run in the wrong di-
rection
Repair the vacuum pump (Busch service)
When connecting the vacuum pump make
sure the vacuum pump will run in the correct
direction (Úpage 8: Installation)
The vacuum pump starts, but labours or runs
noisily or rattles
The drive motor draws a too high current
(compare with initial value after commission-
ing)
Loose connection(s) in the drive motor termi-
nal box
Version with three-phase-motor:
Not all drive motor coils are properly con-
nected
The drive motor operates on two phases only
Check the proper connection of the wires
against the connection diagram
Tighten or replace loose connections
The operating liquid level is too high Adjust the regulating valves
Density or viscosity of the operating liquid too
high
The performance data is based on water
(1000 kg/m³, 1 mm²/s), higher density or vis-
cosity require higher shaft power
Provide a different operating liquid or a stron-
ger drive motor
Friction between the rotor and the front of the
housing
Disassemble the vacuum pump, clean it and
adjust to proper clearances
Version with three-phase motor:
The vacuum pump runs in the wrong direction
Verification and rectification Úpage 5: Instal-
lation and Commissioning
Foreign objects in the vacuum pump
Stuck bearings
Repair the vacuum pump (Busch service)
The vacuum pump runs very noisily Defective bearings Repair the vacuum pump (Busch service)
The vacuum pump cavitates (periodic forma-
tion and collapsing of steam bubbles in the
operating liquid; Úpage 5: Installation and
Commissioning)
Increase the working pressure (vacuum relief
valve) or decrease the temperature of the op-
erating liquid
In case of suction of condensable vapours:
make sure that enough non condensable gas
is conveyed along
CAUTION: continuous operation under cavi-
tation will destroy the vacuum pump
Insufficient air ventilation Make sure that the cooling of the vacuum
pump is not impeded by dust/dirt
Clean the fan cowling, the fan wheel, the ven-
tilation grille and the cooling fins
Install the vacuum pump in a narrow space
only if sufficient ventilation is ensured
LX 0030-0430 A Troubleshooting
0870151932 / 091006 page 13

Ambient temperature too high Observe the permitted ambient temperatures
Temperature of the inlet gas too high Observe the permitted temperatures for the
inlet gas
Insufficient gas transfer
Mains frequency or voltage outside tolerance
range
Provide a more stable power supply
Partial clogging of filters or screens
Partial clogging in the suction, discharge or
pressure line
Remove the clogging
Long suction, discharge or pressure line with
too small diameter
Use larger diameter
LX 0030-0430 A Troubleshooting
0870151932 / 091006 page 14

EC-Declaration of Conformity
Note: This Declaration of Conformity and the -mark affixed to the nameplate are valid for the vacuum pump within the Busch-scope of delivery.
When this vacuum pump is integrated into a superordinate machinery the manufacturer of the superordinate machinery (this can be the operating
company, too) must conduct the conformity assessment process acc. to the Directive Machinery 98/37/EC for the superordinate machine, issue the
Declaration of Conformity for it and affix the -mark.
We
Busch GVT Ltd.
The Forge
Forge Lane
Congleton
Cheshire
CW12 4HG. England
declare that vacuum pumps LX 0030-0430 A
in accordance with the European Directives:
–“Machinery” 98/37/EC,
–“Electrical Equipment Designed for Use within Certain Voltage Limits” (so called “Low Voltage”) 2006/95/EC,
–“Electromagnetic Compatibility” 2004/108/EC,
have been designed and manufactured to the following specifications:
Standard Title of the Standard
Harmonised Standards
EN ISO 12100-1
EN ISO 12100-2
Safety of machinery - Basic concepts, general principles of design - Part 1 and 2
EN ISO 13857 Safety of machinery - Safety distances to prevent hazard zones being reached by the upper and lower limbs
EN 1012-1
EN 1012-2
Compressors and vacuum pumps - Safety requirements - Part 1 and 2
EN ISO 2151 Acoustics - Noise test code for compressors and vacuum pumps - Engineering method (grade 2)
EN 60204-1 Safety of machinery - Electrical equipment of machines - Part 1: General requirements
EN 61000-6-1
EN 61000-6-2
Electromagnetic compatibility (EMC) - Generic immunity standards
EN 61000-6-3
EN 61000-6-4
Electromagnetic compatibility (EMC) - Generic emission standards
Person empowered to sign
on behalf of the responsible person
G. Moir
Engineering manager
LX 0030-0430 A EC-Declaration of Conformity
0870151932 / 091006 page 15

Sectional Drawings and Spare Parts Lists
LX 0030 A to LX 0055 A
LX 0030-0430 A Sectional Drawings and Spare Parts Lists
0870151932 / 091006 page 16
106.7 End casing
185.2 Impeller casing
230.1 Impeller
400.7 Inspection cover gasket
412.0 O-ring
433.0 Mechanical seal
562.0 Dowel
704.3 Inspection cover
742.0 Valve plate retainer
742.1 Valve plate flap
800.0 Motor
900.0 Set screw
900.2 Set screw
902.0 Stud
903.0 Plug
907.0 Adjusting nut
914.0 Cap screw
920.0 Nut
920.5 Sealing Nut
921.0 Washer
921.1 Washer
921.2 Spring washer

LX 0110 A to LX 0430 A
LX 0030-0430 A Sectional Drawings and Spare Parts Lists
0870151932 / 091006 page 17
106.7 End casing
185.2 Impeller casing
230.1 Impeller
400.7 Inspection cover gasket
412.0 O-ring
433.0 Mechanical seal
562.0 Dowel
704.3 Inspection cover
742.0 Valve plate retainer
742.1 Valve plate flap
800.0 Motor
900.0 Set screw
900.1 Set screw
900.2 Set screw
902.0 Stud
903.0 Plug
903.1 Plug
907.0 Adjusting nut
920.0 Nut (not required on model LX 0110 A)
920.5 Sealing Nut
921.0 Washer
921.1 Washer
921.2 Spring washer

Technical Data
For motor connection parameters see nameplate
Type
Frequency
[Hz]
Nominal motor rating
[kW]
Speed
[min-1]
Volume flow
[m³/h]
Sound pressure level
(EN ISO 2151) [db(A)]
Dry weight
[kg]
Max. gas inlet temperature
[°C]
Max. Discharge pressure **
[bar (a)]
Once through operating liquid *
[L/min]
Max. service liquid temperature
[°C]
Ultimate pressure
[hPa abs = mbar abs]
LX 0030 A 50 0.75 2900 24 70 ~25 80 2 3 40
33
60 1.1 3500 30 ~25
LX 0055 A 50 1.5 2900 45 70 ~30 80 2 5 40
60 2.2 3500 55 ~33
LX 0110 A 50 2.2 1450 87 70 ~55 80 2 10 40
60 3.0 1750 110 ~55
LX 0140 A 50 3.0 1450 115 70 ~65 80 2 12 40
60 4.0 1750 140 ~70
LX 0180 A 50 4.0 1450 140 70 ~75 80 2 15 40
60 5.5 1750 180 ~75
LX 0260 A 50 5.5 1450 220 72 ~105 80 2 20 40
60 7.5 1750 260 ~116
LX 0330 A 50 7.5 1450 280 72 ~132 80 2 25 40
60 11 1750 330 ~132
LX 0430 A 50 11 1450 370 72 ~190 80 2 30 40
60 15 1750 430 ~198
* Average flow for once through operation. reduce by 50 % for partial recovery.
** Consult Busch GVT for motor power ratings for high discharge pressures.
LX 0030-0430 A Technical Data
0870151932 / 091006 page 18

Busch – All over the World in Industry www.busch-vacuum.com
Australia
Busch Australia Pty. Ltd.
30 Lakeside Drive
Broadmeadows, Vic. 3047
Tel: [phone]
Fax: [phone]
Austria
Busch Austria GmbH
Industriepark Nord
2100 Korneuburg
Tel: 02262 / 756 65-0
Fax: 02262 / 756 65-20
Belgium
Busch N.V./Busch SA
Kruinstraat 7
9160 Lokeren
Tel: (0)9 / 348 47 22
Fax: (0)9 / 348 65 35
Brazil
Busch do Brasil Ltda.
Rod. Edgard Máximo Zambotto, Km 64
13240-000 Jarinu-SP
Tel: [phone]/5277
Fax: [phone]
Canada
Busch Vacuum Technics Inc.
1740, Boulevard Lionel Bertrand
Boisbriand (Montréal)
Québec J7H 1N7
Tel: [phone]
Fax: [phone]
Chile
Busch Chile S. A.
Calle El Roble N° 375-G
Lampa - Santiago
Tel: [phone]
Fax: [phone]
China
Busch Vacuum (Shanghai) Co., Ltd
No.5, Lane 195 Xipu Road
Songjiang Industrial Estate East New Zone
Shanghai 201611 PRC
Tel: [phone]
Fax: [phone]
Czech Republic
Busch Vakuum s.r.o.
Praákova 10
619 00 Horní Heršpice
Brno
Tel: [phone]
Fax: [phone]
Denmark
Busch Vakuumteknik A/S
Parallelvej 11
8680 Ry
Tel: [phone]
Fax: [phone]
Finland
Busch Vakuumteknik Oy
Sinikellontie 4
01300 VANTAA
Tel: [phone]
Fax: [phone]
France
Busch France S.A.
Parc Technologique
de Bois Chaland CE 2922
91029 Evry Cedex
Tel: [phone]
Fax: [phone]
Germany
Dr.-Ing. K. Busch GmbH
Schauinslandstr. 1
79689 Maulburg
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
Dr.-Ing. K. Busch GmbH
Niederlassung Nord
Ernst-Abbe-Str. 1-3
25451 Quickborn
Tel: [phone]
Fax: [phone]
Dr.-Ing. K. Busch GmbH
Niederlassung West
Nordring 35
64807 Dieburg
Tel: [phone]
Fax: [phone]
Dr.-Ing. K. Busch GmbH
Außenstelle Neuenrade
Breslauer Str. 36
58809 Neuenrade
Tel: [phone]
Fax: [phone]
Dr.-Ing. K. Busch GmbH
Niederlassung Süd-Ost
Gewerbestraße 3
90579 Langenzenn
Tel: [phone]
Fax: [phone]
Dr.-Ing. K. Busch GmbH
Außenstelle Zella-Mehlis
Am Rain 11
98544 Zella-Mehlis
Tel: [phone]
Fax: [phone]
Dr.-Ing. K. Busch GmbH
Außenstelle Meitingen-Ostendorf
Grüntenweg 8
86405 Meitingen-Ostendorf
Tel: [phone]
Fax: [phone]
India
Busch Vacuum India Pvt Ltd.
Plot No. 110, Sector 7
PCNTDA, Bhosari
Pune 411026, Maharashtra
Tel: [phone]
Fax: [phone]
Ireland
Busch Ireland Ltd.
A10-11 Howth Junction Business Centre
Kilbarrack, Dublin 5
Tel: [phone]
Fax: [phone]
Israel
Busch Israel Ltd.
1 Mevo Sivan Street
Qiryat Gat 82022, Israel
Tel: [phone]
Fax [phone]
Italy
Busch Italia S.r.l.
Via Ettore Majorana, 16
20054 Nova Milanese
Tel: [phone]
Fax: [phone]
Japan
Nippon Busch K.K.
1-23-33, Megumigaoka
Hiratsuka City, Kanagawa
Japan 259-1220
Tel: [phone]
Fax: [phone]
Korea
Busch Korea Ltd.
392-1 Yangji-Ri, Yangji-Myun,
Yongin-si, Kyunggi-Do
Tel: [phone]
Fax: [phone]
Malaysia
Busch (Malaysia) Sdn Bhd.
6 Jalan Taboh 33/22
Shah Alam Technology Park
Section 33
40400 Shah Alam
Selangor D. E.
Tel: [phone]
Fax [phone]
Mexico
Busch Vacuum Mexico S de RL de CV
Tlaquepaque 4865, Los Altos
Monterrey, Nuevo Leon
Mexico 64370
Tel: [phone]
Fax: [phone]
Netherlands
Busch B.V.
Pompmolenlaan 2
3447 GK Woerden
Postbus 2091
3440 DB Woerden
Tel: (0)348 - 462300
Fax: (0)348 - 422939
New Zealand
Busch New Zealand Ltd.
Unit D, 41 Arrenway Drive
Albany 0632
Auckland
Tel: [phone]
Fax: [phone]
Norway
Busch Vakuumteknikk AS
Hestehagen 2
1440 Drøbak
Tel: [phone]
Fax: [phone]
Poland
Busch Polska Sp. z o.o.
Ul. Chopina 27
87800 W»oc»awek
Tel: [phone]
Fax: [phone]
Portugal
Busch lbérica S.A., Sucursal em Portugal
Zona Industrial Raso de Travassô, Fracção B, Armazém 2
3750-753 Agueda
Aveiro, Portugal
Tel: [phone]
Fax: [phone]
Singapore
Busch Vacuum Singapore Pte Ltd
20 Shaw Road
#01-03 Ching Shine Building
Singapore 36 79 56
Tel: [phone]
Fax: [phone]
Spain
Busch Ibérica S.A.
C/ Jaume Ferran, 6-8
Pol. Ind. Coll de la Manya
08403 Granollers
Tel: [phone]
Fax: [phone]
Sweden
Busch Vakuumteknik AB
Bråta Industriområde
435 33 Mölnlycke
Tel: 031 - 338 00 80
Fax: 031 - 338 00 89
Switzerland
Busch AG
Waldweg 22
4312 Magden
Tel: 061 / 845 90 90
Fax: 061 / 845 90 99
Taiwan
Busch Taiwan Corporation
1F. No. 69, Sec. 3, Beishen Rd.
Shenkeng Township,
Taipei Country,
Taiwan (222), R.O.C
Tel: [phone]
Fax: [phone]
Thailand
Busch Vacuum (Thailand) Co., Ltd.
888/30 Moo19, Soi Yingcharoen, Bangplee-Tamru Rd.,
Bangpleeyai, Bangplee, Samutprakarn 10540 Thailand
Tel: [phone]
Fax: [phone]
Turkey
VAKUTEK
Emlak Kredi Ishani No: 179
81130 Üsküdar-Istanbul
Tel: [phone]
Fax: [phone]
United Kingdom
Busch (UK) Ltd
Hortonwood 30-35
Telford Shropshire TF1 7YB
Tel: [phone]
Fax: [phone]
USA
Busch, Inc.
516-B Viking Drive
Virginia Beach, VA 23452
Tel: [phone]
Fax: [phone]
Semiconductor Vacuum Group Inc.
Morgan Hill, CA 95037
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