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COBRA

Dry Screw Vacuum Pumps
NC 0400 B WCV (Water Cooled Version)

Instruction Manual

0870565283 | A0006_en | Original instructions

28/02/2022

Содержание COBRA Oxygen NC 0400 B

Страница 1: ...Get technical data instruction manuals service kits COBRA Dry Screw Vacuum Pumps NC 0400 B WCV Water Cooled Version Instruction Manual 0870565283 A0006_en Original instructions 28 02 2022 ...

Страница 2: ... Connection 13 5 2 4 Barrier Gas System Connection Optional 14 5 2 5 Dilution Gas System Connection Optional 16 5 2 6 Purge Gas System Connection Optional 17 5 3 Filling Oil 18 5 4 Filling Cooling Liquid 19 5 5 Liquid Flushing Device Installation Optional 20 5 6 Fitting the Coupling 21 5 7 Electrical Connection 21 5 7 1 Wiring Diagram Three Phase Motor Pump Drive 22 5 7 2 Wiring Diagram Solenoid V...

Страница 3: ... Oil Change 29 7 6 Cooling Liquid Change 32 8 Overhaul 33 9 Decommissioning 34 9 1 Dismantling and Disposal 34 10 Spare Parts 35 11 Troubleshooting 36 12 Technical Data 38 13 Cooling Liquid 39 14 Oil 40 15 EU Declaration of Conformity 41 16 UK Declaration of Conformity 42 ...

Страница 4: ... has been designed and manufactured according to state of the art methods Nevertheless residual risks may remain This instruction manual highlights potential hazards where appropriate Safety notes and warning messages are tagged with one of the keywords DANGER WARNING CAUTION NOTICE and NOTE as follows DANGER indicates an imminent dangerous situation that will result in death or serious injuries i...

Страница 5: ...lug CLF Cooling liquid fill plug CLG Cooling liquid sight glass CLP Cooling liquid pump CWI Cooling water inlet CWO Cooling water outlet EB Eye bolt GB Gas ballast valve IN Suction connection MP Magnetic plug MTB Motor terminal box NP Nameplate ODP Oil drain plug OFP Oil fill plug OSG Oil sight glass OUT Discharge connection PHE Plate heat exchanger PMR Plug for manual rotation of rotors SI Silenc...

Страница 6: ...There is no need for a lubrication or an operating fluid in the compression chamber 2 2 Application The machine is intended for the suction of air and other dry non aggressive non toxic and non explosive gases Conveying of other media leads to an increased thermal and or mechanical load on the machine and is permissible only after a consultation with Busch The machine is intended for the placement...

Страница 7: ...as system see Barrier Gas System 7 2 5 Optional Accessories 2 5 1 Inlet Filter The inlet filter protects the machine against dust and other solids in the process gas The inlet filter is available with a paper cartridge 2 5 2 Gas Ballast Valve The gas ballast valve mixes the process gas with a limited quantity of ambient air to counteract the condensation of vapour inside the machine The gas ballas...

Страница 8: ... volume flow drops below the minimum set flow value The dilution gas ballast prevents the formation of condensates or dilutes them depending on the application The nitrogen is fed into the cylinder The purge gas system fitted at the inlet flange allows to flush the machine after use or during operation The nitrogen is fed into the inlet flange 2 5 7 Liquid Flushing Device The liquid flushing devic...

Страница 9: ...tor Only lift the machine as shown NOTICE In case the machine is already filled with oil Tilting a machine that is already filled with oil can cause large quantities of oil to ingress into the cylinder Drain the oil prior to every transport or always horizontally transport the machine To find out the weight of the machine refer to the chapter Technical Data 38 or the nameplate NP Check the machine...

Страница 10: ...inal packaging preferably at temperatures between 5 55 C NOTICE Long storage time Risk of damage to the machine If the machine is equipped with oil lubricated mechanical seals we recommend to completely fill the oil chamber before a long storage see Oil filling in chapter Oil Change 29 This protects the mechanical seals during a long storage Use the standard pump oil see chapter Oil 40 Before rest...

Страница 11: ...allation conditions Risk of premature failure Loss of efficiency Take care that the installation conditions are fully complied with 50 cm 20 cm 20 cm 20 cm Make sure that the environment of the machine is not potentially explosive Make sure that the ambient conditions comply with the Technical Data 38 Make sure that the environmental conditions comply with the protection class of the motor and the...

Страница 12: ...l protective covers before installation Make sure that the connection lines cause no stress on the machine s connection if necessary use flexible joints Make sure that the line size of the connection lines over the entire length is at least as large as the connections of the machine In case of long connection lines it is advisable to use larger line sizes in order to avoid a loss of efficiency See...

Страница 13: ...surised air source Make sure that the counter pressure also termed back pressure at the discharge connection OUT does not exceed the maximum allowable discharge pressure see Technical Data 38 5 2 3 Cooling Water Connection CWI CWO PHE Description CWI Cooling water inlet CWO Cooling water outlet PHE Plate heat exchanger Connect the cooling water connections CWI CWO to the water supply Connection si...

Страница 14: ...m 200 Chloride mg l 100 Electrical conductivity µS cm 100 Free chloride mg l 0 3 Materials in contact with the cooling water Stainless steel NOTE Water hardness unit conversion 1 mg l ppm 0 056 dh german degree 0 07 e english degree 0 1 fH french degree 5 2 4 Barrier Gas System Connection Optional Without nitrogen panel PRV FR BGC MAN FME Description BGC Barrier gas connection FME Flow meter FR Fl...

Страница 15: ...8 1 Version with nitrogen panel Electrically connect the solenoid valve MV see Wiring Diagram Solenoid Valve 23 Electrically connect the flow switch FS of the flow meter see Wiring Diagram Flow Switch 24 Make sure that the gas complies with the following requirements Gas type Dry nitrogen or air Gas temperature C 0 60 Maximum gas pressure bar 13 Recommended pressure setting at the pressure regulat...

Страница 16: ...sure regulating valve Connect the dilution gas connection DGC to the gas supply Connection size G1 4 ISO 228 1 Electrically connect the solenoid valve MV see Wiring Diagram Solenoid Valve 23 Make sure that the gas complies with the following requirements Gas type Dry nitrogen Gas temperature C 0 60 Maximum gas pressure bar 13 Recommended pressure setting at the pressure regulating valve PRV bar 0 ...

Страница 17: ...el PRV Pressure regulating valve Connect the purge gas connection to the gas supply Connection size G1 4 ISO 228 1 Electrically connect the solenoid valve MV see Wiring Diagram Solenoid Valve 23 Make sure that the gas complies with the following requirements Gas type Dry nitrogen Gas temperature C 0 60 Maximum gas pressure bar 13 Recommended pressure setting at the pressure regulating valve PRV ba...

Страница 18: ...0 B WCV_EN_en 5 3 Filling Oil NOTICE Use of an inappropriate oil Risk of premature failure Loss of efficiency Only use an oil type which has previously been approved and recommended by Busch For oil type and oil capacity see Technical Data 38 and Oil 40 ...

Страница 19: ...te on the sticker Last oil change __ __ ____ Oil type see nameplate Change interval see instruction manual If there is no sticker part no 0565 568 959 on the machine Order it from your Busch representative 5 4 Filling Cooling Liquid For cooling liquid type and cooling liquid capacity see Technical Data 38 and Cooling Liquid 39 ...

Страница 20: ...liquid fill plug FLV Flushing liquid vessel FR Flow regulator INF Inlet flange LI Level indicator LS Level switch MV Solenoid valve Electrically connect the solenoid valve MV see Wiring Diagram Solenoid Valve 23 Electrically connect the two level switches LS see Wiring Diagram Level Switch 24 Fill the flushing liquid vessel FLV with a process compatible flushing liquid ...

Страница 21: ...ch a way until value E is reached When the coupling adjustment is done lock the coupling hub by tightening the radial screw Mount the motor on the machine by including the coupling spider For further coupling information go to www ktr com and download the instruction manual of the ROTEX coupling 5 7 Electrical Connection DANGER Live wires Risk of electrical shock Electrical installation work must ...

Страница 22: ...ICE The admissible motor nominal speed exceeds the recommendation Risk of damage to the machine Check the admissible motor nominal speed nmax on the nameplate of the machine NP Make sure to comply with it Consult the Technical Data 38 to get more information NOTICE The motor frequency is below 20 Hz Risk of damage to the machine The motor nominal speed must always be higher than 1200 min 1 20 Hz N...

Страница 23: ...in the wrong direction of rotation can destroy the machine in a short time Prior to start up ensure that the machine is operated in the right direction The intended rotation direction of the motor is defined by the illustration below Jog the motor briefly Watch the fan wheel of the motor and determine the direction of rotation just before the fan wheel stops If the rotation of the motor must be ch...

Страница 24: ...1 25 A Contact Normally closed Switch point Ttrip 85 C 2 1 T 1 White 2 Brown 5 8 2 Wiring Diagram Flow Switch Optional Part no RC15 14 N3 ref Pepperl Fuchs U 5 25 V I 1 3 mA Switching element function NAMUR bistable Contact Normally open 2 1 1 Brown 2 Blue Switch point 2 SLM min volume flow 5 8 3 Wiring Diagram Level Switch Optional Part no 0652 556 531 Connector M12x1 4 pin 6 mW at I 1 mA 38 mW a...

Страница 25: ...r grease CAUTION During operation the surface of the machine may reach temperatures of more than 70 C Risk of burns Avoid contact with the machine during and directly after operation CAUTION Noise of running machine Risk of damage to hearing If persons are present in the vicinity of a non noise insulated machine over extended periods Make sure that ear protection is being used Make sure that the i...

Страница 26: ...or the dilution gas system solenoid valve END optional accessories Continuously drain condensate from the condensate drain plug CD of the silencer SI Optional 6 2 Liquid Flushing Procedure The machine can optionally be equipped with a liquid flushing device If after the application process a liquid flushing is required START Reduce the motor speed to 10 Hz minimum admissible frequency with the inl...

Страница 27: ...ance work must only be executed by qualified personnel Respect the maintenance intervals or ask your Busch representative for service Shut down the machine and lock against inadvertent start up Turn off the water supply If the machine is equipped with a barrier gas system Close the barrier gas supply Vent the connected lines to atmospheric pressure If necessary Disconnect all connections 7 1 Maint...

Страница 28: ...ary see Replacing the Gas Ballast Filter Optional 29 Check the inlet filter cartridge change it if necessary Check the silence SI and clean it if necessary Every 5000 hours or after 1 year Change the oil of the gear and bearing housings both sides see Oil Change 29 Change the cooling liquid see Cooling Liquid Change 32 Clean the magnetic plugs MP Every 16000 hours or after 4 years Have a major ove...

Страница 29: ...lling Cooling Liquid 19 7 4 Replacing the Gas Ballast Filter Optional 1 2 Description 1 Discard the used part 2 Gas ballast filter Part No 0562 550 434 Busch genuine spare part 7 5 Oil Change NOTICE Use of an inappropriate oil Risk of premature failure Loss of efficiency Only use an oil type which has previously been approved and recommended by Busch ...

Страница 30: ...7 Maintenance 30 44 Instruction Manual COBRA NC 0400 B WCV_EN_en MP MP For oil type and oil capacity see Technical Data 38 and Oil 40 ...

Страница 31: ...When the oil filling is achieved Write down the oil change date on the sticker Last oil change __ __ ____ Oil type see nameplate Change interval see instruction manual If there is no sticker part no 0565 568 959 on the machine Order it from your Busch representative ...

Страница 32: ...7 Maintenance 32 44 Instruction Manual COBRA NC 0400 B WCV_EN_en 7 6 Cooling Liquid Change For cooling liquid type and cooling liquid capacity see Technical Data 38 and Cooling Liquid 39 ...

Страница 33: ...ighly recommended that any dismantling of the machine that goes beyond anything that is described in this manual should be done through Busch In case of the machine having conveyed gas that was contaminated with foreign materials which are dangerous to health Decontaminate the machine as much as possible and state the contamination status in a Declaration of Contamination Busch will only accept ma...

Страница 34: ...ne is equipped with a barrier gas system Close the barrier gas supply Vent the connected lines to atmospheric pressure Disconnect all connections If the machine is going to be stored See Storage 10 9 1 Dismantling and Disposal Drain and collect the oil Make sure that no oil drips onto the floor Drain and collect the cooling liquid Make sure that no cooling liquid drips onto the floor Separate spec...

Страница 35: ...isk of premature failure Loss of efficiency The exclusive use of Busch genuine spare parts and consumables is recommended for the correct functioning of the machine and to validate the warranty There is no standard spare parts kits available for this product if you require Busch genuine parts Contact your Busch representative ...

Страница 36: ... voltage Check the power supply The rotors are jammed or seized Turn the screw rotors manually from the rotor access plug PMR Repair the machine contact Busch Solid foreign matter has entered the machine Remove the solid foreign matter or repair the machine contact Busch Install an inlet filter if necessary A temperature sensor has reached the switch point Let the machine cool down See problem The...

Страница 37: ... The machine runs very noisily Wrong oil quantity or unsuitable oil type Use one of the recommended oils in the correct quantity see Oil 40 Defective gears bearings or coupling element Repair machine contact Busch The machine runs too hot Insufficient cooling Make sure to comply with the cooling water requirements see Cooling Water Connection 13 Ambient temperature too high Observe the permitted a...

Страница 38: ...5 Nominal motor speed 50Hz 60Hz min 1 3000 3600 Noise level EN ISO 2151 50Hz 60Hz dB A 66 69 Ambient temperature range C 5 50 Max allowable counter pressure at the discharge hPa mbar rel 200 Max allowable gas inlet temperature C 50 hPa mbar abs 200 50 hPa mbar abs 70 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Cooling water requirements See Cooling Water Connection 13 Oil ca...

Страница 39: ... Cooling Liquid Zitrec M 25 ready to use Part number 5 L packaging 0831 563 469 Part number 20 L packaging 0831 238 761 The cooling liquid Zitrec M 25 is ready to use and does not require additional water For further information consult the website www arteco coolants com ...

Страница 40: ...14 Oil 40 44 Instruction Manual COBRA NC 0400 B WCV_EN_en 14 Oil VSC 100 ISO VG 100 Part number 1 L packaging 0831 168 356 Part number 5 L packaging 0831 168 357 ...

Страница 41: ...fil those provisions Standards Title of the Standard EN ISO 12100 2010 Safety of machinery Basic concepts general principles of design EN ISO 13857 2019 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 Part 2 EN ISO 2151 2008 Acoustics Noise test ...

Страница 42: ...en used to fulfil those provisions Standards Title of the Standard EN ISO 12100 2010 Safety of machinery Basic concepts general principles of design EN ISO 13857 2019 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 Part 2 EN ISO 2151 2008 Acousti...

Страница 43: ...Instruction Manual COBRA NC 0400 B WCV_EN_en 43 44 Notes ...

Страница 44: ...presence In every country highly competent local personnel delivers custom tailored support backed by a global network of expertise Wherever you are Whatever your business We are there for you Local representatives and distributors Busch companies and Busch employees Busch production site www buschvacuum com 0870565283 A0006_en ...

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