Installation and Maintenance Instructions - Busch Vacuum€¦ · The COBRA NS vacuum pumps are designed for use in the field of industrial applications and similar industries. They

Installation andMaintenance Instructions

Screw Vacuum Pumps

COBRA NS 0600 CDirect cooling water system with heat exchanger and thermostatic valve

Ateliers Busch S.A.Zone industrielle2906 Chevenez

Switzerland0870565684/ 181008/ Subject to change without notice

ROBERT.BABIC

Busch

Table of ContentsIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Product Description. . . . . . . . . . . . . . . . . . . . . . . . . 4Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Principle of operation . . . . . . . . . . . . . . . . . . . . . . . 4Oil circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Process diagram . . . . . . . . . . . . . . . . . . . . . . . . . 4Sealing systems . . . . . . . . . . . . . . . . . . . . . . . . . . 4Operational Options/ Use of Available Accessories . . . . . . . . 4On/ Off switch . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Safety information . . . . . . . . . . . . . . . . . . . . . . . . 5Noise emission . . . . . . . . . . . . . . . . . . . . . . . . . . 5Safety area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Stopping procedure for maintenance. . . . . . . . . . . . . . 5Start-up procedure after maintenance . . . . . . . . . . . . . 5

Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Transportation of packaged pump . . . . . . . . . . . . . . . . 6Transport in unpacked state . . . . . . . . . . . . . . . . . . . 6

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Short-term Storage . . . . . . . . . . . . . . . . . . . . . . . . 6Removal from storage . . . . . . . . . . . . . . . . . . . . . . 6Conservation . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Starting-up of the vacuum pump after storage. . . . . . . . . 6

Installation and Commissioning . . . . . . . . . . . . . . . . . . 7Installation prerequisites . . . . . . . . . . . . . . . . . . . . . 7

Local installation . . . . . . . . . . . . . . . . . . . . . . . . 7Suction Connection . . . . . . . . . . . . . . . . . . . . . . 7Discharge connection . . . . . . . . . . . . . . . . . . . . . 8Cooling water connections . . . . . . . . . . . . . . . . . . . 8Motor cooling water connections . . . . . . . . . . . . . . . 8Nitrogen system connections (option) . . . . . . . . . . . . . 8Electrical connection/ Checks . . . . . . . . . . . . . . . . . 8Cooling liquid temperature control . . . . . . . . . . . . . . . 8

Technical data . . . . . . . . . . . . . . . . . . . . . . . . 8Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . 8Resistance thermometer PT 100 (option) . . . . . . . . . . 9

Monitoring the barrier gas volume flow (option) . . . . . . . . 9Solenoid valve (option). . . . . . . . . . . . . . . . . . . . . 9

Opening/ closing of the nitrogen barrier gas circuit . . . . . 9Opening/ closing the nitrogen purge gas circuit . . . . . . . 9Opening/ closing the nitrogen dilution gas circuit . . . . . . 9

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Electrical connection . . . . . . . . . . . . . . . . . . . . . . 9

Electrical motor connection (15 kW). . . . . . . . . . . . . 9Connecting up of lines/ pipes. . . . . . . . . . . . . . . . . 10Filling up with oil . . . . . . . . . . . . . . . . . . . . . . . 10

Oil level, pump not operating . . . . . . . . . . . . . . . 10Filling in cooling liquid . . . . . . . . . . . . . . . . . . . . 11Checking the cooling water temperature . . . . . . . . . . . 11Checking the cooling water flow (option). . . . . . . . . . . 11Purge gas supply for barrier gas and dilution gas . . . . . . . 11Saving the operating parameters . . . . . . . . . . . . . . . 11

Recommendations on operation. . . . . . . . . . . . . . . . . 11Application . . . . . . . . . . . . . . . . . . . . . . . . . . 11Switching the vacuum pump on/ off . . . . . . . . . . . . . 12

First start-up of the system. . . . . . . . . . . . . . . . . 12Switching off the system . . . . . . . . . . . . . . . . . . 12

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Maintenance program. . . . . . . . . . . . . . . . . . . . . . 13

Weekly:. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Monthly: . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Yearly: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Every 16’000 operating hours, at the latest after 4 Years:. . . 14Stopping procedure for maintenance . . . . . . . . . . . . . 14Start-up after maintenance . . . . . . . . . . . . . . . . . . 14

Checking the oil . . . . . . . . . . . . . . . . . . . . . . . . . 14Checking the oil level . . . . . . . . . . . . . . . . . . . . . 14

Oil level, pump not operating . . . . . . . . . . . . . . . 14Oil level, pump operating . . . . . . . . . . . . . . . . . 14

Topping up with oil . . . . . . . . . . . . . . . . . . . . . . 15Oil level, pump not operating . . . . . . . . . . . . . . . 15

Checking the colour of the oil . . . . . . . . . . . . . . . . 15Oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Draining used oil . . . . . . . . . . . . . . . . . . . . . . . 15Checking the magnetic plug from the rear lubrication circuitof the motor bearing . . . . . . . . . . . . . . . . . . . . . 16Filling in new oil . . . . . . . . . . . . . . . . . . . . . . . 16

Oil level, pump not operating . . . . . . . . . . . . . . . 16Checking the cooling liquid . . . . . . . . . . . . . . . . . . . 16

Checking the level of the cooling liquid . . . . . . . . . . . . 16Top up with cooling liquid . . . . . . . . . . . . . . . . . . 16Draining the cooling liquid . . . . . . . . . . . . . . . . . . 17Filling up with new cooling liquid . . . . . . . . . . . . . . . 17

Checking the cooling water . . . . . . . . . . . . . . . . . . . 17Checking the cooling water temperature . . . . . . . . . . . 17

Checking the current consumption . . . . . . . . . . . . . . . 17Checking the silencer (accessory) . . . . . . . . . . . . . . . . 17

Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Removal from service . . . . . . . . . . . . . . . . . . . . . . . 18Temporary removal from service . . . . . . . . . . . . . . . . 18Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . 18Dismantling and Disposal of the vacuum pump . . . . . . . . . 18

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Oil type/ quantity . . . . . . . . . . . . . . . . . . . . . . . . . 22Oil type. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Oil quantity. . . . . . . . . . . . . . . . . . . . . . . . . . 22

Cooling liquid type/ quantity . . . . . . . . . . . . . . . . . . . 23Cooling liquid type . . . . . . . . . . . . . . . . . . . . . . 23

Cooling liquid quantity . . . . . . . . . . . . . . . . . . . . . 23

Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

EU-Declaration of Conformity . . . . . . . . . . . . . . . . . . . 25

Introduction

Page 2

IntroductionCongratulations on your purchase of the Busch vacuum pump. Withwatchful observation of the field’s requirements, innovation and steadydevelopment Busch delivers modern vacuum and pressure solutionsworldwide.

These operating instructions contain information for

– product description,

– security,

– transport,

– storage,

– installation and commissioning,

– maintenance,

– overhaul,

– troubleshooting

of the vacuum pump.

For the purpose of these instructions, “handling” the vacuum systemmeans the transport, storage, installation, commissioning, influence onoperating conditions, maintenance, troubleshooting and overhaul ofthe vacuum system.

Prior to handling the vacuum system, these operating instructionsshall be read and understood. If anything remains to be clarifiedplease contact your Busch representative!

Keep these operating instructions and, if applicable, other pertinentoperating instructions available on site.

Page 3

CLV SV OFP

TS 2OSG 2

FSA TR CWI 2 CWO 2

ODP

HE

MP, ODP 3

ODP 2

OFP

CWI 1CWO 1

INCLF

OUTCLD

PMR

MP, ODP 1OSG 1TS 1

CLP

TSA

TS 3

IN Inlet

OUT Discharge

CWI 1 Cooling water inlet(motor)

CWO 1 Cooling water outlet(motor)

CWI 2 Cooling water inlet(heat exchanger + cylinder)

CWO 2 Cooling water outlet(heat exchanger + cylinder)

OFP Oil filler plug

OSG 1 Oil sight glass


ODP Oil drain plug

MP, ODP 1 Oil drain magnetic plug

ODP 2 Oil drain plug

MP, ODP 3 Oil drain magnetic plug

SV Safety valve

CLF Cooling liquid filler plug

CLP Cooling liquid pump

CLV Cooling liquid purge plug

CLD Cooling liquid drain ball valve

PMR Unblocking screw for rotors

TS 1 Temperature switch, 120°C



TR Temperature regulator, 55°C

FSA Cooling water flow switch

HE Heat exchanger

Direct cooling water system with heat exchanger and thermostatic valve

PGI

PGO

DP

CWI 1OSG

FSA

PSA

TSA

HE

TS 3

TS 4TS 1

CLP

TR

CWI 2

CWO 1

CWO 2

TS 2

2

OSG1

CWI 1 Cooling water inlet(motor)

CWO 1 Cooling water outlet(motor)

CWI 2 Cooling water inlet(heat exchanger +cylinder)

CWO 2 Cooling water outlet(heat exchanger +cylinder)

FSA Cooling water flow switch

TS 1 Temperature switch, oil tempera-ture 120°C

TS 2 Temperature switch, oil tempera-ture 140°C

TS 3 Temperature switch, coolingliquid temperature 100°C

TS 4 Temperature switch Motor,155°C

PSA Overpressure sensor

TSA Temperature sensor PT100(optional)



CLP Glycol circulating pump

PGI Process gas inlet

PGO Process gas outlet

TR Temperature regulator, 55°C

HE Heat exchanger

Product DescriptionUseThe COBRA NS vacuum pumps are designed for use in the field ofindustrial applications and similar industries.

They can be used to draw gases and gas mixtures.

WARNING

When using toxic, inflammable and/ or explosive gases, make surethat the system corresponds in design to applicable local andnational safety regulations and that all applicable safety measuresare followed.All product-specific safety regulations must be observed.

Corrosion inside the compression chamber can reduce the pumpperformance and its lifetime. Therefore the chemical compatibility ofthe process gases with the pump component materials should bechecked. In doubt, please contact your Busch representative.

Pump component materials with process gas contact:

– ductile cast iron

– nickel + polytetrafluoroethylene (PTFE) (optional coating)

– fluoroelastomer (FKM/ FPM)

– steel/ stainless steel

– brass

Solid particles must not get into the vacuum pump. Procedural errorscan result in the pump drawing in a certain quantity of liquid. If thepump has drawn in liquid, a short drying time will be necessary at theend of the process. In case a silencer (accessory) is fitted at the outlet:

u Drain the silencer (accessory)

The allowed maximum inlet gas temperature depends on the inletpressure and the type of the gas: the lower the inlet pressure (Pa), thehigher the drawn gas temperature (TGas) can be. The followingindicative values for air can be considered:

– Pa > 50 mbar, TGas < 80°C

– Pa < 50 mbar, TGas < 200°C

The vacuum pump is designed for use in an environment which isnon-explosive and for indoor-use only.

Max. permissible number of startings per hour: 6.

The vacuum pump is thermally suitable for continuous operation at anypressure between atmospheric pressure and ultimate pressure.

Principle of operationThe COBRA NS vacuum pumps are screw vacuum pumps with coolingwater circuit.

The COBRA NS vacuum pumps operate according to the principle ofscrew pumps. Two parallel screws rotate in opposite directions in thepump body. Entering gases are trapped between the pitches of thescrews and the pump body. The gases are conveyed by the rotation ofthe screws to the exhaust side where they are discharged.

The COBRA NS vacuum pump is driven by an water-cooled motor.

Oil circuitSince the complete operating principle works without contact, no oilcircuit is needed in the work area.

CoolingThe vacuum pump is cooled by

– the filling of cooling liquid (mix of water and glycol) inside thewater chambers of cylinder and endplate of cylinder B-side. Anindirect circuit is made with a water pump mounted at theendplate of cylinder B-side.The cooling liquid is cooled by a plate heat exchanger which mustbe connected up to the water main. The cooling circuit is equippedwith a temperature regulator fitted upstream of the plate heat

exchanger. When the cooling liquid temperature exceeds 55 °C,the temperature regulator TR opens (mechanical opening) andallows the cooling liquid to get into the heat exchanger. The flowof the cooling water is controlled by a flow switch FSA. If the flowis under 1 l/min during a minimum time of 30 seconds, then thepump stops.A temperature sensor (klixon) TS 4 can be used to control thetemperature of the motor.The relief valve prevents excessively high pressure in the coolingliquide chambers of cylinder, relief pressure: 6 bar.

– a direct cooling water in the motor. The cooling water flow mustbe set at a minimum of 4 l/min.

– a direct cooling water in the heat exchanger (HE). The coolingwater flow must be set at a minimum of 4 l/min. The direct watercooling circuit stabilises the temperature of the cooling liquid.

NOTE: Before vacuum pump first startup, control the oil level and thecooling level. In the event of absence of one or the other of theselubricants, please carry out the filling (please refer to the variouschapter of filling). Do not forget to connect the cooling water supplybefore the first startup. Operation without these coolants can result indamage to the vacuum pump.

Process diagram

Sealing systemsThe COBRA NS vacuum pumps are equipped with labyrinth seals onthe motor side (A-side) and inlet side (B-side) as standard.

Operational Options/ Use of AvailableAccessoriesThe relief valve (SV) prevents excessively high pressure in the cylinder,relief pressure: 6 bar.

A silencer or sound absorber (accessory) at the outlet of the pumpreduces the noise of the pump and collects any condensates.

A temperature switch TS 3 allows the monitoring of the cooling liquidtemperature in the cylinder. When the temperature exceeds 100°C, thepump must stop.

A resistance thermometer PT 100 TSA (option) allows the monitoringof the cooling liquid temperature. When the temperature exceeds100°C, the pump must be switched off.

A nitrogen supply system fitted to the base frame allows the supply ofnitrogen to a number of different points on the vacuum pump. Thesystem allows to adjust pressure and volume flow separately. This gascan be used in a number of different ways:

Product Description

Page 4

(HE)

(TR)

– A purge gas system fitted to the inlet flange allows to flush thevacuum pump after use or during operation. This system consistsof a solenoid valve which enables to open and close the purgecircuit. The filtered gas is fed directly into the inlet flange.

– Barrier gas for the labyrinth seals or the oil-lubricated singlemechanical seal: this option seals off the process gases and thegear oil. The nitrogen is fed into the intermediary chambers.

– Dilution gas: this option prevents the formation of condensates ordilutes them, depending on the application. The nitrogen is feddirectly into the cylinder of the vacuum pump.

On/ Off switchThe vacuum pump is delivered without on/ off switch. The control ofthe vacuum pump must be provided in the course of the installation.

SafetyIntended useDEFINITION: For the purpose of correct understanding, the “handling”of the vacuum pump implies the transport, storage, installation,commissioning, the influence on operating conditions, maintenance,troubleshooting and overhaul of the vacuum pump.

The vacuum pump is intended for industrial use. It should only behandled by qualified staff.

The different applications for use and operational limits of the vacuumpump as laid out in the “Product Description” and the “InstallationPrerequisites” of the vacuum pump must be observed both by themanufacturer of the machinery into which the vacuum pump is to beincorporated and by the end user.

The need for personal safety regulations depends mainly on theapplication the pump will be used in. The end user must provide theoperators with all necessary means and tools and must inform hispersonnel about any dangers emanating from the processed products.

The operator of the vacuum pump must observe the safety regulationsand must train and instruct his personnel accordingly.

Local regulations regarding the motors and electric control elementsmust be observed when installing the pump in potentially explosiveenvironments.

The maintenance instructions must be observed and respected.

It is vital that these installation and maintenance instructions are readand understood before the vacuum pump is used. If you have anydoubts, please contact your local Busch representative.

Safety informationThe vacuum pump has been designed and manufactured in accordancewith the latest technical and safety standards. Nevertheless, residualrisks may remain.

A lot of safety information is mentioned in these Installation andOperating Instructions as well as on the pump. The safety instructionsmust be observed. The safety information can quickly be detectedthrough key words like DANGER, WARNING and CAUTION and isdefined as follows:

DANGER

Disregard of this safety note will always lead to accidents withpotentially fatal injuries and serious damages.

WARNING

Disregard of this safety note may lead to accidents with potentiallyfatal injuries and serious damages.

CAUTION

Disregard of this safety note will always lead to accidents with minorinjuries and damages to property.

Noise emissionRefer to the table “Technical data” for permissible noise levels in freefield conditions according to EN ISO 2151.

CAUTION

The sound level of the vacuum pump within a certain perimeter ofthe pump is high.

Risk of hearing damage.

Users who are spending a longer period of time in the vicinity of anon-insulated vacuum pump must wear suitable ear protection.

Safety areaBefore any maintenance action, ensure a safety perimeter of at least1 [m] around the pump.

Stopping procedure for maintenancel Stop the vacuum pump

l Switch off power supply (the vacuum pump must be fullydisconnected from any power supply)

l Disconnect water connections (inlet first, then outlet)

l Put up label or warning board “Maintenance in progress” on ornext to the pump.

Start-up procedure after maintenancel Remove label or warning board “Maintenance in progress”

l Check cooling liquid and oil levels according to the chapters“Checking the oil level” and “Checking the cooling liquid level”

Safety

Page 5

OSG 2

TS 2ODP 2

SVOFP

OFP

ODP

CWO 1

CWI 1

CWI 2CWO 2

CLV

TR

HE

MP, ODP 3

CLF

CLD

TS 1

MP, ODP 1OSG 1

FSA

PMR

TS 3

l Switch on power supply (the vacuum pump must be connected tothe power supply)

l Connect the water connections (outlet first, then inlet)

l Check that the “Installation prerequisites” are observed

l Start the vacuum pump

TransportThe COBRA NS vacuum pumps are tested and checked in our factorybefore careful packing. Check the packaging for transport damagewhen the goods arrive. The pump can withstand temperaturesbetween -20°C and +55°C during transport.

Transportation of packaged pumpPacked on a pallet, the vacuum pump can be transported with aforklift.

Transport in unpacked stateThe vacuum pump is bolted to a pallet or a base plate:

u Remove the bolts between the vacuum pump and the pallet orbase plate

CAUTION

Do not walk, work or stand under suspended loads.

CAUTION

Please check out the weight of the vacuum pump before lifting it up(see "Technical data").

Use adequate lifting gear for this.

NOTE: The eyebolts are fitted more or less at equal distance from thecentre of gravity of the vacuum pump incl. drive motor. If anyaccessories that could upset the balance of the vacuum pump, areinstalled, or if the vacuum pump is delivered without drive motor, it isnecessary to add a belt or rope at a suitable point when lifting thepump.

l Attach lifting gear securely to the eyebolt or eyebolts

l Use lifting gear with a crane hook equipped with safety latch.

l Lift the vacuum pump

In case the vacuum pump was bolted to a pallet with fixing bolts:

u Unscrew the fixing bolts in the base frame

CAUTION

Once filled with oil, the vacuum pump cannot be lifted anymore.

Prior to every transport make sure that the oil has been drained fromthe vacuum pump

The packaging material must be disposed of in accordance with localand national regulations.

This operating instructions is part of the delivery package.

StorageShort-term Storagel Make sure that the inlet/ discharge connections are closed (leave

the provided plugs in the pump)

l Store the vacuum pump

– if possible in its original packaging,

– indoors,

– dry,

– in a dust free room and

– free from vibrations

Removal from storageBefore starting up a vacuum pump that has been stored outside thebuilding for a while, the vacuum pump must be moved to a room withambient temperature, where it should rest for a day.

ConservationIn case of adverse ambient conditions (e.g. aggressive atmosphere,frequent temperature changes) conserve the vacuum pumpimmediately.In case of favourable ambient conditions conserve the vacuum pump ifa storage of more than 3 months is anticipated.

l Make sure that all openings are hermetically sealed; use adhesivetape to fasten loose parts (such as o-rings, flat seals, etc.).

NOTE: VCI is the abbreviation for “volatile corrosion inhibitor”. TheVCI molecule is an organic corrosion inhibitor in the vapour phase.Integrated in various carriers such as film, cardboard, paper, foam,liquid and powder, it protects parts against corrosion as a result of itsaction in vapour phase. However, VCI packaging can attack plasticsurfaces and surfaces of other elastomers. If in doubt, please contactyour nearest distributor. VCI packaging provides several years ofprotection against corrosion, even under harshest conditions: overseasshipment, extended storage before use.

l Wrap the vacuum pump in VCI film

l Store the vacuum pump

– if possible in its original packaging,

– indoors,

– dry,

– in a dust free and

– vibration free area

Starting-up of the vacuum pump after storagel Please ensure that all protective agents such as gaskets, plugs or

adhesive tapes that were used for the protection of the pump, areremoved.

l Commission the vacuum pump as described in chapter“Installation and Commissioning”

Transport

Page 6

Installation andCommissioningInstallation prerequisites

CAUTION

In case of non-compliance with the installation prerequisites,particularly in case of insufficient cooling:

Risk of damage or destruction of the vacuum pump and itscomponents!

Risk of personal injury!

The installation prerequisites must be complied with.

l Please ensure that the integration of the vacuum pump iscompliant with the safety requirements of the Machine Directive2006/ 42/ EC (concerning the responsibility of the system’smanufacturer into which the vacuum pump is to be incorporated,please also refer to the note in the EC-Declaration of Conformity).

WARNING

Local regulations regarding the motors and electric controlelements must be observed when installing the pump in potentiallyexplosive environments. Before start-up, make sure that all safetymeasures have been followed.

Local installationl Make sure that the environment of the vacuum pump is not

potentially explosive

l Make sure that the following ambient conditions are adhered to:

– Ambient temperature: 5 - 50 °C

– Ambient pressure: atmospheric

– Humidity: max. 95%, non-condensing

l Make sure that the cooling water fulfills the followingrequirements:

– Temperature: 5 - 30 °C

– Water pressure: 1,5 - 5 bar (relative)

– Required pressure differential across supply and return: ³ 1,5 bar

– Flowrate:Motor: ³ 4 l/minHeat exchanger (HE): ³ 4 l/minTotal water flow: ³ 8 l/min

l To reduce the maintenance effort and to achieve a long productlifetime we recommend the following cooling water quality:

– Hardness:< 5° dH (degrees German hardness)< 9° fH (degrees French hardness)< 1.25° e (degrees English hardness)< 90 mg/kg CaCO3 (American hardness)

– Properties: Clean & clear

– pH value: 7 - 9

– Particle size: < 200 mm

– Chloride: < 100 mg/l

– Free chlorine: < 0.3 mg/l

– Materials in contact with the cooling water: Stainless steel, copper

l Make sure that the environment conditions correspond to theprotection class of the motor (according to motor nameplate)

l Make sure that the vacuum pump is fastened to preventinadvertent movement

l Make sure that the vacuum pump is level to a maximum of 1° inany direction

l Make sure that the vacuum pump cannot inadvertently orintentionally be used as a support for heavy objects

l Make sure that the vacuum pump cannot be hit by falling objects

l Make sure that the vacuum pump is at least 1 m away from anywall

l Make sure that the vacuum pump is easily accessible and that theselected installation site fulfills the requirements for assembly/dismantling

l Make sure that no temperature-sensitive part (such as plastic,wood, cardboard, paper, electronic parts) come into direct contactwith the hot surfaces of the vacuum pump

l Make sure that the installation site or assembly area is ventilated insuch a way that adequate cooling of the vacuum pump is assured

CAUTION

During operation the surface of the vacuum pump may exceedtemperatures of 70° C.

Risk of burns!

l Make sure that the vacuum pump cannot be touched inadvertentlyduring operation, provide a guard if necessary

l Make sure that the oil sight glasses (OSG 1 and OSG 2) will remaineasily accessible

If the oil change is meant to be performed on site:

u Make sure that the oil drain plugs as well as the oil filler plugs,are easily accessible.

Suction Connection

CAUTION

Do not put hands into the inlet aperture.

Risk of body damage!

l Make sure that the protection that prevents the ingress of foreignmatter during transport, has been removed before connecting upthe vacuum pump to the piping.

CAUTION

The ingress of foreign objects or liquids can destroy the vacuumpump.

In case the inlet gases can contain dust or other foreign solid particles:

u Make sure that a suitable filter or protection screen is installedat the inlet of the vacuum pump

l Make sure that the nominal diameter of the inlet line is at leastequal to the diameter of the inlet flange to prevent a drop in theperformance of the vacuum pump in the case of a smallercross-section.

l Make sure that the vacuum pump is connected with leak prooflines.

CAUTION

Once the inlet line has been connected up, make sure that thesystem does not leak. Leakage of dangerous substances must beprevented!

l Make sure that the inlet line is equipped with a shut-off deviceupstream of the inlet flange, so that the flow of drawn gases canbe stopped

l Make sure that the inlet line does not exercise any pressure on theinlet flange. Use bellows if necessary.

l The inlet flange has the following dimension:

Installation and Commissioning

Page 7

– DN 100 ISO-K

In case of long inlet lines the pipe diameter should be larger than theinlet flange to prevent a drop in the performance of the vacuum pump.If you have any doubts, contact your Busch representative.

Discharge connection

CAUTION

Do not put hands into the outlet aperture.

Risk of body damage!

The following instructions for connection to the discharge side onlyapply if the drawn gas is discharged into a suitable environment by thevacuum pump.

l Make sure that the protection, that was fitted to prevent theingress of particles during transport, has been removed before thevacuum pump is connected up to the vacuum pipe

l Make sure that the nominal diameter of the discharge linecorresponds at least to the diameter of the exhaust flange of thevacuum pump in order to prevent a drop in the performance of thevacuum pump, in case of use of a smaller cross-section

CAUTION

When the discharge piping has been connected up, make sure thatthe system does not leak. Leakage of dangerous substances must beprevented!

l Make sure that the discharge line is fitted in such a way so as toprevent any liquids or condensates to re-enter the vacuum pump(siphon, discharge line sloping away from the pump)

l Make sure that the discharge line does not exercise any load ontothe exhaust flange. Mount bellows if necessary

l The outlet flange has the following dimension:

– DN 100 ISO-K

In the case of long discharge lines, the line cross-section should belarger than the exhaust flange in order to prevent a drop in theperformance of the vacuum pump. If you have any doubts, contactyour Busch representative.

A silencer (optional accessory) can be fitted to the pump discharge toavoid pulsation and sound transmission into the exhaust line.

Cooling water connectionsThe cooling water is generally connected up with a flexible hose.

The cooling water outlet must be unpressurised.

Connection diameter:

– cooling water inlet: G ½

– cooling water outlet: G ½

Motor cooling water connectionsThe motor cooling water is generally connected up with a tight hose tothe electrical motor.

– Connection diameter: G ½

Nitrogen system connections (option)The connection of the nitrogen system is generally done using flexiblehoses (diameter ¼")

Connection diameter:

– G ¼, ISO 228-1

Electrical connection/ Checksl Make sure that the requirements according to EMC-Directive

2014/30/EU as well as the current EN-standards, electrical andoccupational safety directives and the local or national regulationsrespectively, are complied with (this is the responsibility of thedesigner of the machinery into which the vacuum pump is to beincorporated; see also the corresponding comments in the EUDeclaration of Conformity).

l Make sure that the power supply is compatible with the data onthe nameplate of the drive motor

l Make sure that an overload protection according to EN 60204-1 isprovided for the drive motor

l Make sure that the drive of the vacuum pump will not be affectedby electric or electromagnetic interference; if unsure please seekadvice from your Busch representative

Cooling liquid temperature controlThe cooling liquid temperature in the cylinder is monitored by atemperature switch TS 3 that is mounted in the lower cylinder cover.

The electrical wiring of the temperature switch has to be done in orderthat the vacuum pump stops when the temperature switch trips (breakcontact).

Designation Set value [°C]

TS 3 Lower cylinder cover 100

Technical data

Technical data

Set value 100 °C ±7 °C

Switching cycles 10’000

AC current cosj = 1 2,5 A / 250 VAC

AC current cosj = 0,6 1,6 A / 250 VAC

DC current 1,6 A / 24 VDC

DC current 1,25 A / 48 VDC

Resistance contact max. 50 mW

Bounce time contact max. 1 ms

High voltage max. 2 kV

Cable operating temperature max. motionless -30°C … +80°C

Cable operating temperature max. moved -5°C … +70°C

Electrical wiring


Page 8

12

J >

Resistance thermometer PT 100 (option)

Resistance thermometer PT 100 instead of temperature switch.

Monitoring the barrier gas volume flow(option)A flow meter with contact fitted to the control panel of the nitrogensystem enables the monitoring of the gas volume flow which is fed intothe intermediary chambers.

The flow meter must be connected in such a way that the vacuumpump switches off when the volume flow drops below the min. setflow value.

– Set value: 3,5 Nl/ min

Solenoid valve (option)Opening/ closing of the nitrogen barrier gas circuit

A solenoid valve connected to the barrier gas circuit enables to controlthe opening/ closing of the nitrogen barrier gas circuit.

The nitrogen barrier gas circuit depends on the application and isdefined by the end user of the vacuum pump.

Opening/ closing the nitrogen purge gas circuit

A solenoid valve, connected to the inlet flange, enables to control theopening/ closing of the nitrogen purge gas circuit.

The nitrogen purge gas circuit depends on the application and isdefined by the end user of the vacuum pump.

Opening/ closing the nitrogen dilution gas circuit

A solenoid valve connected to the dilution gas circuit enables to controlthe opening/ closing of the nitrogen dilution gas circuit.

The dilution gas circuit depends on the application and is defined bythe end user of the vacuum pump.

Installation

Fittingl Make sure that the “Installation Prerequisites” are complied with

l Fit or install the vacuum pump at its final location

Electrical connection

WARNING

Risk of electrical shock, risk of damage to equipment.

Electrical installation work must only be executed by qualifiedpersonnel 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 preventionregulation.

CAUTION

The connection schemes given below are typical. Specific orders ordeviating connection schemes for certain markets may apply.

Risk of damage to the drive motor!

Please check drive motor connections inside the terminal box andrefer to the drive motor connection instructions.

WARNING

The operating rotational speed of the drive motor must correspondto the pump's nameplate value. Do not exceed the mentionedrotational speed.

nmax = 3000min-1 -> 50Hz +/- 2%nmax = 3600min-1 -> 60Hz +/- 2%

Risk of damage to the vacuum pump!

l Connect the drive motor electrically

l Connect the earth line

Electrical motor connection (15 kW)

CAUTION

When connecting up the wires into the terminal box: please makesure the tightening torque of 3 Nm is adhered to and check with acalibrated torque wrench (Nuts M6).

Three phase motor connection

Star-star connection (Low voltage):


Page 9

Ateliers Busch S.A.

Zone Industrielle

CH-2906 Chevenez

Vacuum Pump

NS 600 CS/N = C1405009999

pabs = 0.01 hPa (mbar) Vmax = 600 m /h3

nmax = ***** min

Oil = Busch YLC 250 B

-1 m = 552 kg

Oil quantity = 2 L

Made in

SwitzerlandYear 2014

nmax = 3000 min

or

-1

nmax = 3600 min -1

T9

T8

T6

T7

T5

T3

T1

T2

T4

P1

P2

P3

P4

T7 T8 T9

T1 T2 T3

L1 L3 L2

T4 T5 T6

Star connection (High voltage):

Thermo switch connection

CAUTION

Operation of the pump in the wrong direction of rotation, even fora short period of time, can destroy the vacuum pump.

Risk of damage of the drive motor!

Prior to starting-up of the vacuum pump, please ensure that thevacuum pump is connected up correctly.

l Determine the direction of rotation by using a pressure measuretool or by placing a rubber plate on the inlet

l Press the on/ off switch and hold briefly

l Make sure that the pump draws in

If the direction has to be changed:

u Switch around any two of the drive motor wires in the terminalbox

Connecting up of lines/ pipesl Connect the suction line

l Connect the discharge line

l Make sure that all provided covers, guards, hoods etc. are fitted

Filling up with oilThe COBRA NS vacuum pumps are always delivered without oil (seechapter “Oil Type” for information on recommended oils).

l Prepare the quantity of oil specified in the table “Oil quantity”

l Refer to the pump nameplate to identify the correct oil type usedfor this pump

l Only use the oil type specified on the pump nameplate

NOTE: The quantity of oil specified in the operating instructions is ofinformative nature only. Check the oil level with the help of the variousoil sight glasses (OSG 1 and OSG 2) on the vacuum pump.

l Unscrew the oil filler plugs

l Fill in oil

l Make sure that the filling level is in the target circle of the oil sightglasses (OSG 1 and OSG 2)

Oil level, pump not operating

l Make sure that the seal ring in the oil filler plugs is not damaged,replace plugs if necessary

l Fit the oil filler plugs and tighten up

l Switch on the vacuum pump

In case the suction line is equipped with a shut-off valve:

u Close the shut-off valve

In case the suction line is not equipped with a shut-off valve:

u Cover the inlet connection with a rubber plate

l Let the vacuum pump run for a few minutes

l Switch off the vacuum pump and wait for a few minutes

l Check that the filling level is in the target circle of the oil sightglasses (OSG 1 and OSG 2)

If the oil level is below the target circle of the oil sight glasses:

u Top-up with oil

In case the suction line is equipped with a shut-off valve:

u Open the shut-off valve

In case the suction line is not equipped with a shut-off valve:

u Remove the rubber plate from the suction flange and connectthe suction line to the suction flange

l Before any transport, make sure that the oil has been drained outof the vacuum pump.

CAUTION

Once filled with oil, the vacuum pump should not be lifted ormoved anymore.


Page 10

MAXMIN

MAXMIN

MAXMIN

Ateliers Busch S.A.

Zone Industrielle

CH-2906 Chevenez

Vacuum Pump

NS 600 CS/N = C1405009999


nmax = ***** min


-1 m = 552 kg

Oil quantity = 1,6 l

Made in


Busch YLC 250 B(perfluorinated polyether)

P1 P2

T4 T5 T6

T7 T8 T9

W1

L1 L3 L2

T1 T2 T3

CAUTION

The vacuum pump must remain in a horizontal position once it hasbeen filled with oil.

Filling in cooling liquidThe COBRA NS vacuum pumps are always delivered without coolingliquid (see chapter “Cooling liquid types ” for information on therecommended cooling liquids).

l Prepare the quantity of cooling liquid as specified in the table“Cooling liquid quantity”

NOTE: The quantity of cooling liquid specified in the installationhandbook is of informative nature only. Follow the procedure of fillingthe cooling liquid.

l Remove the cooling liquid filler plug (CLP) on cylinder upper plate

l Open the cooling liquid purge plug (CLV) on cylinder upper plate

l Fill in cooling liquid by filler hole until the cooling liquid flows ofthe cooling purge plug (CLV) on cylinder upper plate

l Close the cooling liquid purge plug (CLV) on cylinder upper plate

l Fit the cooling liquid filler plug (CLP) on cylinder upper plate

l If there is any spillage on the surface of the vacuum pump, wipe itup


If the inlet line is equipped with a shut-off device:

u Close the shut-off device

If the inlet line is not equipped with a shut-off device:

u Place a rubber plate on the suction flange

l Let the vacuum pump run for maximum 5 minutes

l Stop the vacuum pump and wait for a few minutes


l Check that the filling level is just under the cylinder upper plate

In case the cooling liquid level is below the required level:

u Fill in more cooling liquid


u Open the shut-off device


u Remove the rubber plate from the suction flange and connectthe suction line to the suction flange

Checking the cooling water temperatureAs standard, the vacuum pump is delivered without water temperaturecontrol device. Regularly check the temperature of the cooling water.Too high a temperature of the cooling water will not make it possibleto regulate the temperature of the cooling liquid.

Checking the cooling water flow (option)As option, the flow of the cooling water is checked by the flowmeterFSA. The flowmeter must be connected in such a way thatswitching-on leads to an alarm and stopping of the vacuum pumpwhen the flow drops below 3 l/min.

Purge gas supply for barrier gas and dilutiongasThe pump has connections available to add a barrier gas system and adilution gas system. These systems are typically equipped with pressureregulators and solenoid valves. Disfunctions of these components mustnot cause dangerous overpressure conditions inside the vacuum pumpor in connected pipework. If required pressure monitoring or reliefvalves should be foreseen.

Barrier gas Dilution gas

Gas type(depends on process)

Dry nitrogen, air orother suitable gas

Dry nitrogen, air orother suitable gas

Gas temperature 0 - 60°C

Filtration £ 50 mm

Maximumpermissibleflow rate

30 SLM 200 SLM

Recommendedflow rate 8 SLM depends on process

Saving the operating parametersAs soon as the vacuum pump is working under normal conditions afterbeing switched on:

l Measure the working current of the motor and keep it as referencevalue for all future maintenance and repair work

Recommendations on operation

Application

WARNING

The vacuum pump is designed for operation under the conditionsdescribed below.

In case of disrespect of the above, risk of damage or destruction ofthe vacuum pump!

The vacuum pump must only be operated under the conditionsdescribed below.

The COBRA NS 600 C vacuum pumps have been designed for use inindustrial applications and similar industries.

They can be used to draw gases and gas mixtures.

Maximum permissible inlet pressure: atmospheric pressure

Make sure that the maximal counter pressure at the discharge of 0,2bar is never exceeded. If there is the risk of obstruction of exhaustlines, a permanent discharge pressure monitoring is recommended.

WARNING

When using toxic, inflammable and/ or explosive gases, make surethat the system corresponds to applicable local and national safetyregulations and that all applicable safety measures are followed.All product-specific safety regulations must be observed.

Solid particles must not enter the vacuum pump. In case of processerrors, the pump can draw in a certain amount of liquids. If the pumphas drawn in liquid, a short drying run will be necessary at the end ofthe process and, in case a silencer (accessory) is mounted at the outlet:

u Drain the silencer (accessory)

Condensables should be drained out of the silencer continously.

The vacuum pump is intended for use in a potentially non-explosiveenvironment.

Max. permissible number of startings per hour: 6.

The vacuum pump is thermally suitable for continuous use at anypressure between atmospheric pressure and ultimate pressure.


Page 11

CAUTION

During operation the surface of the vacuum pump can exceedtemperatures of 70°C.

Risk of burns!

The vacuum pump must be protected against contact duringoperation. If touching the pump is unavoidable, wait until thesurface temperature has cooled down or wear protective gloves.

CAUTION

The sound level of the pump within a certain perimeter of the pumpis high.

Risk of hearing damage.

Users, who are spending a longer period of time in the vicinity of anon-insulated vacuum pump, must wear suitable ear protection.

CAUTION

The COBRA NS vacuum pumps are always delivered without oil.

Operation without oil will destroy the vacuum pump within a shortperiod of time.

The vacuum pump must remain in a horizontal position once it hasbeen filled with oil.

CAUTION

The COBRA NS vacuum pumps are always delivered withoutcooling liquid.

Operation without cooling liquid will destroy the vacuum pumpwithin a short period of time!

l Make sure that all provided covers, guards, hoods etc. remainfitted

l Make sure that protective devices will not be disconnected

l Make sure that there is no leakage in the system, the escape ofdangerous substances must be avoided

l Make sure that the “Installation Prerequisites” are complied withand will remain so, and ensure that adequate cooling is guaranteed

If the pump is shut down for a longer period of time:

To avoid obstruction of the pumping mechanism and to avoidadhesion of process materials on the screw rotors, dilution gas can beinjected (optional accessory)

CAUTION

If there is a risk of frost, all the cooling water must be drained out ofthe vacuum pump if the pump is shut down for a longer period oftime!

– Drain the cooling liquid

u Open the cooling liquid purge plug (CLV)

u Open the cooling liquid drain ball valve (CLD)

u Drain the cooling liquid completely

u Refit the cooling liquid drain plug again

u Close the cooling liquid purge ball valve

u Collect the cooling liquid and re-use it or dispose of itaccording to local or national regulations

– Drain the cooling water

u Disconnect the cooling water inlet/ outlet connections

u Drain the cooling water completely

u If necessary, drain the cooling water with the help ofcompressed air in order to prevent any risk of frost or corrosion

NOTE: When the pump has not been in operation for a few days orwhen a sticky substance has been drawn, it is possible that the tworotor screws of the COBRA NS vacuum pump stick to each other.

Switching the vacuum pump on/ offFirst start-up of the system

l Make sure that the “Installation Prerequisites” are followed

If the system is equipped with a solenoid valve on the cooling watercircuit:

u Open the solenoid valve

l Open the cooling water supply

If the vacuum pump is equipped with a barrier gas system:


u Open the nitrogen supply

u Adjust the barrier gas pressure

If the vacuum pump is equipped with a purge gas system:



u Adjust the pressure and volume flow for the purge gas

If the vacuum pump is equipped with a dilution gas system:



u Adjust the pressure and volume flow for the dilution gas


If the vacuum pump is equipped with a solenoid valve at the inlet:


If the vacuum pump is equipped with a shut-off valve at the inlet:

u Open the shut-off valve

Switching off the system

If the vacuum pump is equipped with a solenoid valve at the inlet:

u Close the solenoid valve

If the vacuum pump is equipped with a shut-off valve at the inlet:

u Close the shut-off valve

If the vacuum pump is equipped with a purge gas system:

u Open the solenoid valve on the flushing device

u Flush the vacuum pump for 20 - 40 minutes

u Close the solenoid valve on the flushing device

l Switch off the vacuum pump

l Close the cooling water supply

If the vacuum pump is equipped with a solenoid valve on the coolingwater circuit:

u Close the solenoid valve

If the vacuum pump is equipped with a barrier gas, purge or dilutiongas system:

u Close the nitrogen supply

u Close the solenoid valve(s)

l The system must be disconnected from the power supply


Page 12

Maintenance

WARNING

In case the vacuum pump has conveyed gases that have beencontaminated with harmful foreign material which are harmful tohealth, the oil and the condensates will also be contaminated withharmful foreign material.

These foreign materials can infiltrate the pores, recesses and otherinternal spaces of the vacuum pump.

Danger to health during dismantling of the vacuum pump.

Danger to the environment.

During dismantling of the vacuum pump protective equipment andclothing must be worn.

Before any maintenance work, the inlet and outlet piping as well asthe vacuum pump itself must be flushed with nitrogen.

CAUTION

Only authorised personnel may carry out any dismantling on thevacuum pump. Before work begins, the operator of the vacuumpump must fill in a form or a “Declaration Regarding Contaminationof Vacuum Equipment and Components” that provides informationon possible dangers and appropriate measures.If this form has not been filled in completely and signed by aresponsible person, the vacuum pump may not be dismantled.

CAUTION

Before any maintenance work is started, a safety perimeter of atleast 1 [m] around the machine must be set up.

CAUTION

During operation the surface of the vacuum pump may reachtemperatures in excess of 70 °C.

Risk of burns!

Before starting any maintenance work, make sure that the vacuumpump has been fully switched off and that it cannot accidentally beswitched on again. Follow the shutdown procedure in the section“Stopping procedure for maintenance”:

l Stop the vacuum pump

l Switch off the power supply (the vacuum pump must be fullydisconnected from the power supply)

l Disconnect the cooling water connections (inlet first, then outlet)

l Put up label or warning board “Maintenance in progress” on ornext to the pump

CAUTION

The oil temperature can reach a value of 100°C!

Danger of burns!

l Make sure that the oil circuit and the cooling liquid circuit havebeen drained before moving the vacuum pump

l Do not use strong solvents for cleaning of labels and stickers onthe pump

l Make sure that any cleaning materials used to clean the vacuumpumps have been disposed of according to local and nationalregulations

Before disconnecting the different connections, make sure that the inletand exhaust lines of the vacuum pump have been brought toatmospheric pressure

When the maintenance work has been finished, follow the procedure“Start-up procedure after maintenance”:

l Remove the label or warning board “Maintenance in progress”

l Check the cooling liquid and oil levels according to chapters“Checking the oil level” and “Checking the cooling liquid level”

l Connect the pump up to the power supply

l Reconnect the cooling water connections (outlet first, then inlet)

l Make sure that the “Installation Prerequisites” are followed

l Start the pump

Maintenance programNOTE: The maintenance intervals depend on the individual operatingconditions. The intervals given below should be considered as initialguidelines which should be shortened or extended as appropriate. Inparticularly heavy duty operation such as high dust loads in theenvironment or in the process gas, it can become necessary to shortenthe maintenance intervals significantly.

Weekly:l Check the oil level and the colour (see “Checking the Oil”)

l Check the vacuum pump for oil leaks - in case of leaks, have thevacuum pump repaired (Busch service)

Monthly:l Make sure that the vacuum pump has been switched off and that

it cannot accidentally be switched on again

l Check the level of the cooling liquid (see “Checking the Coolingliquid”)

l Check the cooling water (see “Checking the cooling water”)

l Check the electrical connections

l Carry out a visual inspection of the vacuum pump

l Check the vacuum pump for cooling liquid leaks - in case of leaks,have the vacuum pump repaired (Busch service)

l Check the vacuum pump for cooling water leaks - in case of leaks,have the vacuum pump repaired (Busch service)

Yearly:l Make sure that the vacuum pump has been switched off and that

it cannot accidentally be switched on again

If the inlet is equipped with a mesh screen:

u Check the mesh screen at the inlet and clean it if necessary

l Check the correct operation of the measurement and safetyequipment

l Check the seals and replace them if necessary

l Drain the cooling liquid (see “Draining the cooling liquid”)

l Perform a vacuum leak test measurement on the pump

l Check the inlet and discharge lines and clean or replace them ifnecessary

Maintenance

Page 13

Every 16’000 operating hours, at the latestafter 4 Years:l Oil change (see “Oil change”)

l Have a major overhaul done on the vacuum pump (Busch service)

Stopping procedure for maintenancel Stop the vacuum pump

l Switch off the power supply (the vacuum pump must bedisconnected from the power supply)

l Disconnect the cooling water connections (inlet first, then outlet)

l Put up label or warning board “Maintenance in progress” on ornext to the pump.

Start-up after maintenancel Remove label or warning board “Maintenance in progress”

l Check the cooling liquid and oil levels according to the chapters“Checking the oil level” and “Checking the cooling liquid level”

l Connect the pump up to the power supply

l Reconnect the cooling water connections (outlet first, then inlet)

l Make sure that the “Necessary installation instructions” arefollowed


Checking the oil

Checking the oil levell Make sure that the vacuum pump is switched off and cannot

accidentally be switched on again

l Check the oil level on the different oil sight glasses

If the oil level is lower than the target circle of the oil sight glass:

u Top up with oil (see “Topping up Oil”)

If the oil level is higher than the target circle of the oil sight glass:

u Check the evacuation of the condensates.

u Drain the oil (see “Change the oil”)


Oil level, pump operating

l To check the oil level during operation of the pump, please use thefollowing guidelines:

50 Hz operation, nmax = 3000 min-1


according to nameplate,oil sight glass inlet side (OSG1)

Minimum oil level, Pump operating

During operation, oil level must not be more than 3 mm under theoil level target circle of oil sight glass!


according to nameplate,oil sight glass motor side (OSG2)




according to nameplate,oil sight glass motor side (OSG2)



Maintenance

Page 14

9 mm

MAXMIN

2 mm

MAXMIN

4 mm

MAXMIN

MAXMIN

MAXMIN

MAXMIN

Topping up with oilNOTE: Under normal conditions there should be no need to top upwith oil in-between the recommended oil change intervals. Asignificant drop in the oil level indicates a malfunction (see“Troubleshooting”).

CAUTION

Fill in oil only through the oil filler holes.

CAUTION

Risk of injury (burns) with open oil filler orifice.

Risk of injury in case of badly screwed-in plugs.

Remove the oil filler plugs only when the vacuum pump is stopped.

The vacuum pump must only be operated when the oil filler plugsare firmly tightened up and do not leak.

l Make sure that the vacuum pump is switched off and cannotaccidentally be switched on again

l Remove the oil filler plugs

l Top up with oil and fill up to the upper level of the target circle ofthe oil sight glasses (OSG 1 and OSG 2)

l Make sure that the oil level is in the target circle of the oil sightglasses (OSG 1 and OSG 2)


l Make sure that the seals of the oil filler plugs are not damaged andreplace plugs if necessary

l Refit the oil filler plugs and tighten up

Checking the colour of the oill Check oil type according to nameplate

Busch oil YLC 250 B: The oil must be clear and transparent. Apermanent milky colour is an indication for contamination by foreignbodies. A dark colour is an indication for oil that has been chemicallyaltered or contaminated by foreign bodies.

WARNING

Dark coloured oil may indicate a hazardous pump condition whichcould cause personal injury.

If dark oil similar to the example shown is observed, you have tocontact the Busch Customer Service without delay.

Oil change

WARNING

In case the vacuum pump has conveyed gases that have beencontaminated with harmful foreign materials, the oil will also becontaminated.

Danger to health during the change of contaminated oil.


Wear protective equipment during the change of contaminated oil.

Contaminated oil is hazardous waste and must be disposed ofseparately in compliance with applicable regulations.

Draining used oilNOTE: After switching off the vacuum pump at normal operatingtemperature wait no more than 20 minutes before the oil is drained.


l Make sure that the vacuum pump is vented to atmosphericpressure

l Put a drain tray underneath the oil drain plugs (ODP)

l Remove the oil drain plugs (ODP)

l Carefully remove the drain plugs

l Drain the oil

l Because of wear and tear on the seals replace the current drainplugs with new ones

When the oil flow has stopped:

l Close the oil drain plugs (ODP)

l Switch on the vacuum pump for a few seconds


l Remove the oil drain plugs again and drain any remaining oil

l Check that no metal swarf sticks to the magnet of the drain plug,clean if necessary

l Refit the oil drain plugs and tighten up

l Dispose of the used oil in compliance with applicable regulations

Maintenance

Page 15

MAXMIN

MAXMIN

MAXMIN

CAUTION

Because the ends of the drain plugs are magnetic, metal swarf canstick to them. Always clean away this swarf when removing thedrain plugs.

Because of wear and tear of the seals, it is recommended to replacethe drain plugs whenever the oil is changed.

Checking the magnetic plug from the rearlubrication circuit of the motor bearing

CAUTION

Never unscrew and remove the magnetic plug (MP, ODP 3) whenthe vacuum pump is operating.

l Make sure that the vacuum pump and the primary pump areswitched off and cannot accidentally be switched on again

l Make sure that the vacuum pump has been vented to atmosphericpressure

l Make sure that all the oil has been drained

l Carefully unscrew and take off the magnetic plug (MP, ODP 3),which is situated on the rear lubrication circuit of the motorbearing

l Make sure there is no metallic swarf on the magnetic part of themagnetic plug, clean off as necessary

l Refit the magnetic plug (MP, ODP 3)

CAUTION

It is recommended that the magnetic plug (MP, ODP 3) is replacedat every oil change due to wear and tear of the seal.

Filling in new oill Prepare the quantity of oil needed (see “Oil type/ quantity”)

WARNING

The use of chemically contaminated or polluted oil can lead tohazardous pump conditions which could cause personal injury.

NOTE: The quantity of oil specified in the operating instructions is ofinformative nature only. Check the oil level with the help of the variousoil sight glasses on the vacuum pump.

l Make sure that the oil drain plugs have been fitted properly andthat they do not leak

CAUTION

Only fill in oil through the oil filler orifices.

l Remove the oil filler plugs

l Fill in oil until it reaches the upper level of the target circle of theoil sight glasses (OSG 1 and OSG 2)

l Make sure that the oil level is in the target circle of the oil sightglasses (OSG 1 and OSG 2)


l Make sure that the seals of the oil filler plugs are not damaged andreplace plugs if necessary

l Refit the oil filler plugs and tighten up

l Note the date of oil change on the sticker on the pump

Checking the cooling liquid

Checking the level of the cooling liquidl Make sure that the vacuum pump is switched off and cannot


l Check the level of the cooling liquid


u The filling level must be just under the cylinder upper plate

If the level is below:

u Top up with cooling liquid (see “Refilling cooling liquid”)

Top up with cooling liquidNOTE: Under normal conditions there should be no need to top upwith cooling liquid in-between the recommended change intervals. Asignificant drop in the cooling liquid level indicates a malfunction (see“Troubleshooting”).


l Remove the cooling liquid filler plug (CLP) on the cylinder





l Make sure that the seal rings of the cooling liquid filler plug (CLP)and cooling liquid purge plug (CLV) are not damaged, replaceplugs if necessary


Maintenance

Page 16

Last oil change

__ / __ / ____

Oil type see nameplate

Change interval see

instruction manual

MAXMIN

MAXMIN

MAXMIN

Draining the cooling liquidl Make sure that the vacuum pump is switched off and cannot


l Make sure that the vacuum pump is vented to atmosphericpressure

l Put a drain tray underneath the cooling liquid drain ball valve(CLD)

l Remove the cooling liquid purge plug (CLV)

l Open the cooling liquid drain ball valve (CLD)

l Drain the cooling liquid

l Refit the cooling liquid purge plug (CLV) and tighten up

l Close the cooling liquid purge ball valve

l Start the vacuum pump and let it run for about 5 seconds


l Remove the cooling liquid purge plug (CLV) on cylinder upperplate again

l Open the cooling liquid drain ball valve (CLD) again

l Drain any remaining cooling liquid

l Make sure that the seals of the cooling liquid purge plugs are notdamaged, replace plugs if necessary

l Refit the cooling liquid purge plugs again and tighten up

l Close the cooling liquid drain ball valve

l Collect the cooling liquid and re-use it or dispose of it according tolocal or national regulations

Filling up with new cooling liquidl Prepare the quantity of cooling liquid needed (see “Cooling liquid

type/ quantity”)

NOTE: The quantity of cooling liquid specified in the operatinginstructions is of informative nature only.

l Remove the cooling liquid filler plug (CLP) on cylinder upper plate








u Close the shut-off device


u Place a rubber plate on the suction flange

l Let the vacuum pump run for maximum 5 minutes

l Stop the vacuum pump and wait for a few minutes


l Check that the filling level is just under the cylinder upper plate

In case the cooling liquid level is below the required level:

u Fill in more cooling liquid


u Open the shut-off device


u Remove the rubber plate from the inlet flange and connect theinlet line to the inlet flange

Checking the cooling water

Checking the cooling water temperaturel Check regularly the cooling water temperature

u Make sure that the specifications of the cooling water arefollowed

Checking the current consumptionl Check the current of the motor

An increased current indicates a fault (see “Troubleshooting”)

Checking the silencer (accessory)l Make sure that the condensates do not collect at the outlet of the

vacuum pump

l Drain the condensates via the drain provided and collect them in acontainer

l Dispose of the condensates in compliance with applicableenvironmental protection regulations

l Check regularly the silencer and clean it if necessary

CAUTION

Wear protective clothing when carrying out maintenance work onthe silencer.

Risk of contaminated process residues.

Overhaul

CAUTION

Improper maintenance work on the vacuum pump can damage it.

Risk of explosion!

Non-adherence to the procedure will cancel approval for start-up ofthe pump!

Any dismantling of the vacuum pump beyond of what is describedin this manual must be done by specially trained Busch service staffonly.

DANGER

In case the vacuum pump has conveyed gases that have beencontaminated with foreign materials that are dangerous to health,the oil and condensates will also be contaminated.


Danger to health when the vacuum pump is dismantled.


Prior to shipping, the vacuum pump must imperatively bedecontaminated and the degree of contamination must bedocumented in a declaration of decontamination ("Declaration ofDecontamination"), which can be downloaded fromwww.buschvacuum.com.

Busch service will only accept vacuum pumps that come with acompletely filled in and legally binding signed form.

Overhaul

Page 17

Removal from serviceTemporary removal from servicePrior to disconnecting inlet and outlet pipes as well as cooling waterpipes, make sure that all piping is vented to atmospheric pressure

Recommissioning

CAUTION

After a long period of inactivity, it is possible that the rotor screws ofthe COBRA NS vacuum pump are stuck.

l Make sure that all gaskets, plugs or adhesive tapes have beenremoved.

l Start the vacuum pump as described in the chapter “Installationand Commissioning”

Dismantling and Disposal of thevacuum pump

DANGER

In case the vacuum pump has conveyed gases that have beencontaminated with harmful foreign material which are harmful tohealth, the oil and the condensates will also be contaminated withharmful foreign material.


Danger to health during dismantling of the vacuum pump.


During dismantling of the vacuum pump protective equipment andclothing must be worn.

The vacuum pump must be decontaminated prior to disposal.

Prior to shipping, the vacuum pump must imperatively bedecontaminated and the degree of contamination must bedocumented in a declaration of decontamination ("Declaration ofDecontamination"), which can be downloaded fromwww.buschvacuum.com.

Used oil and condensates must be disposed of separately incompliance with applicable environmental regulations.

When the vacuum pump comes to the end of its life:

– it must be decontaminated

CAUTION

Only authorised personnel may carry out dismantling work on thevacuum pump. Before work begins, the operator of the vacuumpump must fill in a form or a “Declaration of Decontamination” thatprovides information on possible dangers and appropriate measures.

If this form has not been filled in completely and signed, thevacuum pump may not be dismantled.

– drain the oil

u dispose of the used oil in compliance with applicableenvironmental regulations

– drain the cooling liquid

u dispose of the cooling liquid in compliance with applicableenvironmental regulations

– dismantle the vacuum pump

CAUTION

During dismantling of the vacuum pump protective equipment andclothing must be worn

u dispose of the vacuum pump as scrap metal

– dispose of the different components of the pump in compliancewith applicable regulations

Removal from service

Page 18

Troubleshooting

WARNING

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

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 usualpressure

The vacuum system or suction line is notleak-tight

Check the hose or pipe connections for possibleleak

Evacuation of the system takes too long In case a mesh screen is installed on the suctionconnection:

The mesh screen on the suction connection ispartly clogged

Clean the mesh screen

If cleaning is required too frequently install afilter upstream

In case an inlet filter is installed on the suctionconnection:

The filter on the suction connection is partlyclogged

Clean or replace the inlet filter, respectively

Partial clogging in the suction, discharge orpressure line

Remove the clogging

Long suction, discharge or pressure line withtoo small diameter

Use larger diameter

Internal parts worn or damaged Repair the vacuum pump (Busch service)

The vacuum pump does not start The drive motor is not supplied with the correctvoltage or is overloaded

Supply the drive motor with the correct voltage

The drive motor starter overload protection istoo small or trip level is too low

Compare the trip level of the drive motor starteroverload protection with the data on thenameplate

Correct if necessary

In case of high ambient temperature:

Set the trip level of the drive motor starteroverload protection 5 percent above thenominal drive motor current

One of the fuses has blown Check the fuses

The connection cable is too small or too longcausing a voltage drop at the vacuum pump

Use sufficiently dimensioned cable

The drive motor is defective Replace the drive motor (Busch service)

The vacuum pump is blocked Solid foreign matter has entered the vacuumpump

Repair the vacuum pump (Busch service)

Make sure the suction line is equipped with amesh screen

If necessary additionally provide a filter

Troubleshooting

Page 19

Corrosion in the vacuum pump from remainingcondensate


Check the process

Observe the chapter “Installation andCommissioning, Operating Notes”

The vacuum pump was run in the wrongdirection


When connecting the vacuum pump make surethe vacuum pump will run in the correctdirection (see “Installation”)

Condensate ran into the vacuum pump Repair the vacuum pump (Busch service)

Make sure no condensate will enter the vacuumpump, if necessary provide a drip leg and adrain cock

Drain condensate regularly

The circulating pump is blocked Remove the circulating pump, clean if necessary

The vacuum pump starts, but labours or runsnoisily or rattles

The drive motor draws a too high current(compare with initial value after commissioning)

Connections in the drive motor terminal box aredefective

Not all drive motor coils are properly connected

The drive motor operates on two phases only

Check the proper connection of the wiresagainst the connection diagram

Tighten or replace loose connections

The vacuum pump runs in the wrong direction Verification and rectification see “Installationand Commissioning”, correct if necessary

Standstill over several weeks or months Let the vacuum pump run warm with inletclosed

Improper oil quantity, unsuitable oil type Use the proper quantity of one of therecommended oils

(see “Oil”, oil change see “Maintenance”)

No oil change over extended period of time Perform oil change incl. flushing (see“Maintenance”)

Foreign objects in the vacuum pump

Stuck bearings


The vacuum pump runs very noisily Defective bearings Repair the vacuum pump (Busch service)

The vacuum pump runs very hot

(the oil sump temperature shall not exceed100 °C)

Cooling water flow too low Check the cooling water circuit and adjust theflow if necessary

Ambient temperature too high Observe the permitted ambient temperatures

Temperature of the inlet gas too high Observe the permitted temperatures for theinlet gas

Oil level too low Top up oil

Check the oil filler plugs

Check the mechanical seals (option)

Mains frequency or voltage outside tolerancerange

Provide a more stable power supply

In case a mesh screen is installed on the suctionconnection:

The mesh screen on the suction connection ispartially clogged

Clean the mesh screen

If cleaning is required too frequently install afilter upstream

In case an inlet air filter is installed on thesuction connection:

The filter on the suction connection is partiallyclogged

Clean or replace the filter

Partial clogging in the suction or discharge line Remove the clogging

Long suction, discharge or pressure line withtoo small diameter

Use larger diameter

Troubleshooting

Page 20

Cooling water too low Quick coupler for cooling water dislocated

Water supply pressure too low

Cooling water piping obstructed

Leakage of cooling water piping

Connect the quick couple

Apply proper pressure

Clean/ replace piping

Replace seals

Troubleshooting

Page 21

Oil type/ quantityOil typel Make sure that the oil type corresponds to the specification:

l Refer to the pump nameplate to identify the correct oil type used for this pump

Denomination Busch YLC 250 B

Base Perfluorinated polyether

Specific gravity (20°C [g/cm3]) 1,90

Kinematic viscosity at 20 °C [cSt] 270

Viscosity index (20°C) 113

Decomposition temperature [°C] > 290

Pourpoint [°C] -35

Part no. 0,5 litre packaging 0831 000 054

Part no. 2,5 litres packaging 0831 514 524

Colour Clear, colourless

WARNING

The use of chemically contaminated or polluted oil can lead to hazardous pump conditions which could cause personal injury.

Oil quantityThe quantity of oil specified in the following table is of informative nature only. Check the oil level with the help of the various oil sight glasses onthe vacuum pump.

Quantity [Liter]COBRA NS

Motor side (A) Suction side (B)

NS 600 C 0,8 0,8

Oil type/ quantity

Page 22

Ateliers Busch S.A.

Zone Industrielle

CH-2906 Chevenez

Vacuum Pump

NS 600 CS/N = C1405009999


nmax = ***** min


-1 m = 552 kg

Oil quantity = 1,6 l

Made in


Busch YLC 250 B(perfluorinated polyether)

Cooling liquid type/ quantityCooling liquid typel Make sure that the cooling liquid type corresponds to specifications :

Specifications Zitrec M-25 (ready-to-use)

25 litres can 5 litres can

part no. 0831 563 468 part no. 0831 563 469

Cooling liquid quantityThe quantity of cooling liquid specified in this instructions manual is of informative nature only. Respect the procedure of filling the cooling liquid.

Quantity Zitrec M-25 (already mixed ready-to-use)

NS 0600 C approx. 30 litres

CAUTION

The proportion of pure glycol and water for the cooling liquid corresponds to a percentage of 40% pure glycol and 60% water. It is therefore notnecessary to prepare the mix before use. But when using pure glycol, it is imperative to prepare the mix prior to filling the pump and to respectthis proportion.

Cooling liquid type/ quantity

Page 23

Technical data

Technical data NS 0600 C

Nominal suction capacity m3/h (cfm) 600 (353)

Ultimate pressure Torrmbar/ hPa

7,5 x 10-3

1,0 x 10-2

Nominal motor rating kW 15,0

Motor voltage and current rating

50 Hz50 Hz

60 Hz60 Hz

YY 200 VY 400-440 V

YY 200 VY 400-460 V

63 A36 -32 A

59 A34-30 A

Motor speed50 Hz60 Hz

min-1

min-1

29203540

Maximal allowed operationalspeed Refer to pump nameplate

Noise level (EN ISO 2151)50 Hz60 Hz

dB(A)dB(A) 68

Ambient temperature °C (°F) 5 - 50 (41 - 122)

Maximal counter pressure at thedischarge side bar 0,2

Maximum permissible inletpressure Atmospheric pressure

Leak rate mbar*l/s £ 1.10-6

Cooling water requirement l/ min 8

Cooling water pressure bar 1,5 - 5

Cooling water temperature °C (°F) 5 - 30 (41 - 86)

Nitrogen requirement approx. l/ min 0 - 200

Nitrogen overpressure bar 1,5

Weight approx. kg 552

Technical data

Page 24

EU-Declaration of ConformityThis Declaration of Conformity and the CE-mark affixed to the nameplate are valid for the machine within the Busch scope of delivery. Thisdeclaration of Conformity is issued under the sole responsibility of the manufacturer. When this machine is integrated into a superordinatemachinery the manufacturer of the superordinate machinery (this can be the operating company, too) must conduct the conformity assessmentprocess for the superordinate machine or plant, issue the Declaration of Conformity for it and affix the CE-mark.

The manufacturer: Ateliers Busch S.A.Zone IndustrielleCH-2906 Chevenez

declare that the machine(s) NS 0600 C

has (have) been manufactured in accordance with the European Directives:

– “Machinery” 2006/42/EC

– “Electromagnetic Compatibility” 2014/30/EU

– “RoHS 2” 2011/65/EU, 2017/2102, restriction of the use of certain hazardous substances in electrical and electronic equipment

and following the standards:

Standard Title of the standard

EN ISO 12100:2010 Safety of machinery - Basic concepts, general principles of design

EN ISO 13857:2008 Safety of machinery - Safety distances to prevent hazard zones being reached by the upper and lower limbs

EN 1012-1:2010

EN 1012-2:1996 + A1:2009

Compressors and vacuum pumps - Safety requirements - Part 1 and 2

EN ISO 2151:2008 Acoustics - Noise test code for compressors and vacuum pumps - Engineering method (grade 2)

EN 60204-1:2006 Safety of machinery - Electrical equipment of machines - Part 1: General requirements

EN 61000-6-2:2005 Electromagnetic compatibility (EMC) – Generic standards. Immunity for industrial environments; Part 1 and 3

EN 61000-6-4:2007 + A1:2011 Electromagnetic compatibility (EMC) – Generic standards. Emission standard for industrial environments

EN ISO 13849-1:2015 (1) Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design and 2

Person authorised to compile the technical file: Gerd RohwederBusch Dienste GmbHSchauinslandstr. 1DE-79689 Maulburg

Chevenez, 08.10.2018

Christian Hoffmann, General Director

(1) In case control systems are integrated.

Note

Note

Busch – All over the World in Industry www.buschvacuum.comArgentinaBusch Argentina S.R.L.Santo Domingo 3076C1293AGN-Capital FederalBuenos AiresPhone: +54 11 4302 8183Fax: +54 11 4301 0896e-mail: [email protected]

AustraliaBusch Australia Pty. Ltd.30 Lakeside DriveBroadmeadows, Vic. 3047Phone: +61 3 93 55 06 00Fax: +61 3 93 55 06 99e-mail: [email protected]

AustriaBusch Austria GmbHIndustriepark Nord2100 KorneuburgPhone: +43 2262 / 756 65-0Fax: +43 2262 / 756 65-20e-mail: [email protected]

BelgiumBusch N.V.Kruinstraat 79160 LokerenPhone: +32 9 / 348 47 22Fax: +32 9 / 348 65 35e-mail: [email protected]

BrazilBusch do Brasil Ltda.Estrada Municipal Santo Gastaldi, 16013240-000 Jarinu-SPPhone: +55 11 4016 1400Fax: +55 11 4016 5399e-mail: [email protected]

CanadaBusch Vacuum Technics Inc.1740, Lionel BertrandBoisbriand, Québec J7H 1N7Phone: +1 450 435 6899Fax: +1 450 430 5132e-mail: [email protected]

ChileBusch Chile S. A.Calle El Roble N° 375-GLampa - SantiagoPhone: +56 2 3765136Fax: +56 2 7387092e-mail: [email protected]

ChinaBusch Vacuum (Shanghai) Co., LtdNo.5, Lane 195 Xipu RoadSongjiang Industrial Estate East New ZoneShanghai 201611 PRCPhone: +86 (0)21 67600800Fax: +86 (0)21 67600700e-mail: [email protected]

Czech RepublicBusch Vakuum s.r.o.Jugoslávská 868/4a613 00 BrnoPhone: +420 530 504 410Fax: +420 530 504 420e-mail: [email protected]

DenmarkBusch Vakuumteknik A/SParallelvej 118680 RyPhone: +45 87 88 07 77Fax: +45 87 88 07 88e-mail: [email protected]

FinlandBusch Vakuumteknik OySinikellontie 401300 VantaaPhone: +358 9 774 60 60Fax: +358 9 774 60 666e-mail: [email protected]

FranceBusch France S.A.S.16, Rue du Bois Chaland91090 LissesPhone: +33 16989 8989Fax: +33 16989 8958e-mail: [email protected]

GermanyDr.-Ing. K. Busch GmbHSchauinslandstrasse 179689 MaulburgPhone: +49 7622 681-0Fax: +49 7622 6 5484e-mail: [email protected]

HungaryBusch Vacuum Kft.Gyári út 23.2310 SzigetszentmiklósPhone: +36 24 887 308Fax: +36 24 887 309e-mail: [email protected]

IndiaBusch Vacuum India Pvt Ltd.103, Sector 5IMT ManesarGurgaonHaryana - 122 050Phone: +91 124 4050091Fax: +91 124 2292103e-mail: [email protected]

IrelandBusch Ireland Ltd.A10-11 Howth Junction Business CentreKilbarrack, Dublin 5Phone: +353 1 832 1466Fax: +353 1 832 1470e-mail: [email protected]

IsraelBusch Israel Ltd.1 Mevo Sivan StreetQiryat Gat 82022, IsraelPhone: +972 (0)8 6810485Fax +972 (0)8 6810486e-mail: [email protected]

ItalyBusch Italia S.r.l.Via Ettore Majorana, 1620834 Nova MilanesePhone: +39 0362 370 91Fax: +39 0362 370 999e-mail: [email protected]

JapanNippon Busch K.K.1-23-33, MegumigaokaHiratsuka City, KanagawaJapan 259-1220Phone: +81 463-50-4000Fax: +81 463-50-4004e-mail: [email protected]

KoreaBusch Manufacturing Korea, Ltd.189-51, Soicheon-ro, Majang-myun,Icheon-si, Gyunggi-do, 467-813,Republic of KoreaPhone: +82 31 645 2700Fax: +82 31 631 2898e-mail: [email protected]

MalaysiaBusch Malaysia Sdn Bhd.4&6, Jalan Taboh 33/22, Seksyen 33Shah Alam Technology Park40400 Shah AlamSelangor Darul EhsanPhone: +60 3 5122 2128Fax +60 3 5122 2108e-mail: [email protected]

MexicoBusch Vacuum Mexico S. de R.L. de C.V.Tlaquepaque 4865, Los AltosMonterrey, Nuevo LeonMexico 64370Phone: +52 81 8311-1385Fax: +52 81 8311-1386e-mail: [email protected]

NetherlandsBusch B.V.Pompmolenlaan 23447 GK WoerdenPhone: +31 348-462300Fax: +31 348-422939e-mail: [email protected]

New ZealandBusch New Zealand Ltd.Unit D, 41 Arrenway DriveAlbany, Auckland 1330Phone: +64 9 414 7782Fax: +64 9 414 7783e-mail: [email protected]

NorwayBusch Vakuumteknikk ASHestehagen 21440 DrøbakPhone: +47 64 98 98 50Fax: +47 64 93 66 21e-mail: [email protected]

PolandBusch Polska Sp. z o.o.Ul. Chopina 27

87-800 WloclawekPhone: +48 54 2315400Fax: +48 54 2327076e-mail: [email protected]

PortugalBusch lbérica S.A., Sucursal em PortugalMarco da Raposa - Z.I. EN 1 Norte3750-753 Raso de Travassô - AguedaAveiro, PortugalPhone: +351 234 648 070Fax: +351 234 648 068e-mail: [email protected]

RussiaBusch Vacuum Russia OOOKotlyakovskaya str., 6/9115201 MoscowPhone: +7 495 6486726Fax: +7 495 6486724e-mail: [email protected]

SingaporeBusch Vacuum Singapore Pte. Ltd.77A Joo Koon CircleSingapore 629098Phone: +65 6488 0866Fax: +65 6288 0877e-mail: [email protected]

South AfricaBusch Vacuum South Africa (Pty) Ltd.87 Mimetes RoadDenverJohannesburgPhone: +27 11 856 0650/6Fax: +27 11 856 0625e-mail: [email protected]

Spain

Busch Ibérica S.A.Pol. Ind. Coll de la ManyaC/ Jaume Ferran, 6-808403 GranollersPhone: +34 93 861 61 60Fax: +34 93 840 91 56e-mail: [email protected]

Sweden

Busch Vakuumteknik ABBråta Industriområde435 33 MölnlyckePhone: +46 31-338 00 80Fax: +46 31-338 00 89e-mail: [email protected]

Switzerland

Busch AGWaldweg 224312 MagdenPhone: +41 61 / 845 90 90Fax: +41 61 / 845 90 99e-mail: [email protected]

Taiwan

Busch Taiwan Corporation1F. No. 69, Sec. 3, Beishen RoadShenkeng Township,Taipei County 222Phone: +886 2 2662 0775Fax: +886 2 2662 0796e-mail: [email protected]

Thailand

Busch Vacuum (Thailand) Co., Ltd.29/10 Moo 7, Soi Poolchareon,Bangna-Trad Road,Bangchalong, BangpleeSamutprakarn 10540Phone: +66 2 3370360-2Fax: +66 2 3370363e-mail: [email protected]

Turkey

VAKUTEKEmlak Kredi Ishani No: 17934672 Üsküdar-IstanbulPhone: +90 216 310 0573Fax: +90 216 343 5126e-mail: [email protected]

United Arab Emirates

Busch Vacuum FZEA-3/71, Sharjah Airport International Free zone (SAIF-Zone),

P.B.No: 121855, SharjahPhone: +971 06 5529 174Fax: +971 6 5528 653e-mail: [email protected]

United Kingdom

Busch (UK) LtdHortonwood 30Telford Shropshire TF1 7YBPhone: +44 1952 677 432Fax: +44 1952 677 423e-mail: [email protected]

USA

Busch LLC516-B Viking DriveVirginia Beach, VA 23452Phone: +1 757 463-7800Fax: +1 757 463 7407e-mail: [email protected]

Documents

Installation and Maintenance Instructions - Busch Vacuum€¦ · The COBRA NS vacuum pumps are designed for use in the field of industrial applications and similar industries. They