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vacuubrand MD 4C NT + 2 AK, Instructions For Use Manual

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vacuubrand MD 4C NT + 2 AK Instructions For Use Manual Download Page 49

page 54 of 75

The replacement of the diaphragm and the replacement of the valves can 
be carried out separately.

To replace the valves, remove the head covers of one side of the pump 

be disassembled. The head covers can be removed along with the as-

Service  only  one  side  of  the  pump  at  a  time  to  avoid  the  mixing  of 
parts.

 Cleaning and inspecting the pump heads

Pump on pump support:

Remove  catchpots  (9)  at  inlet  and  outlet 
(see ”Use and operation”, page 38).

-

er cowling (W) with a Torx driver T20. Pay 
attention  to the  washers  under  the screws 
and remove.
Pull off head cover cowling (W) carefully. Do 
not tilt.

W

Summary of Contents for MD 4C NT + 2 AK

Page 1: ...umping units Instructions for use Technology for Vacuum Systems ME 2C NT ME 4C NT ME 4C NT 2 AK ME 8C NT ME 8C NT 2 AK MZ 2C NT MZ 2C NT 2 AK MZ 2C NT AK M D MZ 2C NT AK EK MZ 2C NT AK Synchro EK MD 4C NT MD 4C NT 2 AK MD 4C NT AK EK MD 4C NT AK Synchro EK PC 101 NT PC 201 NT ...

Page 2: ...elopments in material and manufacturing technology Our quality maxim is the zero defect principle Every diaphragm pump before leaving our factory is tested intensively including an endurance run of 14 hours Any faults even those which oc After completion of the endurance run every pump is tested and must We are committed to providing our customers only pumps that meet this high quality standard Wh...

Page 3: ...Pump parts 29 Use and operation 38 Installing a pump in a vacuum system 38 During operation 42 Important notes regarding the use of gas ballast 44 Important notes concerning the operation of the exhaust waste vapor condenser 45 Shutdown storage 47 Accessories 48 Troubleshooting 50 Replacing diaphragms and valves 52 Cleaning and inspecting the pump heads 54 Replacing the diaphragm 58 Replacing the ...

Page 4: ...the pump and the pumped substances VACUUBRAND disclaims any liability for inappropri ate use of these pumps and for damage from failure to follow instructions contained in this manual This manual is only to be used and distributed in its com plete and original form It is strictly the users responsibility to check carefully the validity of this manual with respect to his product Manual no 999156 07...

Page 5: ...ry NOTICE is used to address practices not related to personal injury Caution Hot surface Disconnect equipment from AC power Formatting used in this manual Note The signal word panels in all sections of this manual always refer to all paragraphs of the same format signal word panel The document Safety information for vacuum equipment is part of this manual Read the Safety information for vacuum eq...

Page 6: ... Replace the protective caps if the equipment is not used immediately Store the equipment in dry and non corrosive conditions see also Technical data pg 24 Do not use any damaged equipment Intended use Do not use the pump or any system parts on humans or animals Ensure that the individual components are only con nected combined and operated according to their de sign and as indicated in the instru...

Page 7: ... Technical data pg 24 Particles and dust must not enter the pump Do not pump liquids pumped substances prior to operation Use the equipment only as intended that is for genera tion of vacuum in vessels designed for that purpose Any other use will automatically invalidate all warranty and li ability claims Remain aware of safety and risks Setting up and installing the equipment Equipment must be co...

Page 8: ...e a stable position of the pump without any me chanical contact other than the pump feet maximum permissible pressures at in let and outlet and with maximum permissible pres sure differences between inlet and outlet See section Technical data pg 24 Do not operate the pump with overpressure at the inlet bar absolute in the event that gas or inert gas is con nected to the pump to the gas ballast or ...

Page 9: ...to avoid a reduction of ventilation Use only hoses at the inlet and outlet of the pump with an inner diameter at least as large as the diameter of the pump s tubing to avoid overpressure at the outlet and reduction of pumping speed at the inlet Allow the equipment to equilibrate to ambient temperature if you bring it from cold environment into a room prior to operation Notice if there is water con...

Page 10: ... see also IP degree of protection Technical data pg 24 Operating conditions These pumps are not approved for operation in po tentially explosive atmospheres Do not operate the pumps in potentially explosive atmospheres Pumps without the mark on the rating plate are not approved for the pumping of potentially explo sive atmospheres Do not pump potentially explo sive atmospheres with those pumps Pum...

Page 11: ...d temperatures even to the point of exceeding the maximum permitted temperatures danger of forming deposits inside the pump e g in the pump chambers the pump chamber is the part between diaphragm and head cover See section Re placing diaphragms and valves pg 52 Inspect the pump chambers regularly and clean if necessary Consider interactions and chemical reactions of the pumped media Ensure that th...

Page 12: ...ately or otherwise remove any poten tially explosive mixtures at the outlet of the pump or dilute them to non explosive concentrations Never operate this pump if it has a damaged cord or plug If the pump is not working properly has been dropped or has fallen into water contact your pump service pro vider Prevent any part of the human body from coming into contact with vacuum Make sure that the exh...

Page 13: ...ent and the vacuum system Adopt suitable measures to prevent contamination of the pumped substances or the environment can be caught or drawn in at the inlet of the pump inlet or outlet sure at the gas ballast valve Pumped gases or con densate might be expelled if the valve is open If an in ert gas supply is connected to the gas ballast ensure that its inlet pipeline is not contaminated Pay attent...

Page 14: ...ply voltage below 100V the lock of the cutout might be impaired and the pump may appropriate precautions if an automatic restart of the pump may lead to a dangerous situation e g switch off the pump and disconnect from the power source Maintenance and repair In order to comply with laws occupational health and safety regulations safety at work law and regulations for environmental protection vacuu...

Page 15: ...s which have been pumped during operation Ensure that the pump is completely decontaminated before maintenance commences Take adequate precautions to protect people from the effects of dangerous substances if contamination has occurred Use appropriate protective clothing safety goggles and protective gloves Wear parts have to be replaced regularly Never operate a defective or damaged pump Check ev...

Page 16: ...le Ensure that maintenance is done only by suitably trained and supervised technicians Ensure that the maintenance technician is familiar with the safety procedures which re late to the products processed by the pumping system Only dismantle the pump as far as necessary NOTICE ...

Page 17: ...apors or mists normally don t occur or if they do occur are likely to do so only infrequently and for a short period only Equipment in this category ensures the requisite level of protection dur ing normal operation The use of gas ballast or the operation of venting valves is only permit ted if thereby explosive atmospheres normally don t occur in the interior of the equipment or if they do occur ...

Page 18: ... checked Only if the pump achieves sure that no explosive atmospheres will occur in the interior of the equip ment After any intervention at the vacuum sensor the leak rate of the equip ment has to be checked Attention This manual is not available in all languages of the EU The user must not op erate the device if he does not understand this manual In this case a technically cor rect translation o...

Page 19: ...nstallation altitude above mean sea level ft m 6500 2000 No load speed 50 60 Hz rpm 1500 1800 Device fuse slow blow fuse 6 3 A Motor protection thermal cutout manual reset Degree of protection IEC 529 IP 40 Coolant connection waste vapor condenser only EK hose nozzle for tubing I D 1 4 5 16 hose nozzle DN 6 8 mm Maximum permissible pressure of coolant at waste vapor condenser EK psi bar 87 absolut...

Page 20: ...60 Hz A 3 4 1 8 1 8 Inlet KF 16 Outlet hose nozzle for tubing I D 3 8 hose nozzle DN 10 mm approx design 2 AK in mm in mm 9 6 x 8 3 x 7 8 243 x 211 x 198 10 0 x 9 6 x 7 8 254 x 243 x 198 12 4 x 9 6 x 11 5 316 x 243 x 291 Weight approx design 2 AK lbs kg lbs kg 22 5 10 2 24 3 11 1 30 0 13 6 Pumping speed of diaphragm pump Operating condition Inlet pressure Permitted range of gas temperatures at inl...

Page 21: ...m rated current at 100 115 V 50 60 Hz 120 V 60 Hz 200 230 V 50 60 Hz 230 V 50 60 Hz A A A 3 4 1 8 1 8 Inlet hose nozzle for tubing I D 3 8 or small Outlet hose nozzle for tubing I D 3 8 hose nozzle DN 10 mm Pump Vacuum systems design 2 AK design AK EK design AK SYNCHRO EK design AK M D PC 101 NT in mm in mm in mm in mm in mm in mm 9 6 x 9 6 x 7 8 243 x 243 x 198 12 6 x 9 6 x 12 2 319 x 243 x 309 1...

Page 22: ...z Dual voltage motor 230 V 50 60 Hz 100 115 V 50 60 Hz 120 V 60 Hz 200 230 V 50 60 Hz Maximum rated cur rent at 100 V 50 60 Hz 120 V 60 Hz 100 115 V 50 60 Hz 120V 60 Hz 200 230 V 50 60 Hz 230V 50 60 Hz A A A A A 5 0 4 0 5 7 3 0 3 0 Inlet hose nozzle for tubing I D 3 8 hose nozzle DN 10 mm Outlet hose nozzle for tubing I D 3 8 hose nozzle DN 10 mm approx Pump Vacuum systems design 2 AK design AK EK...

Page 23: ...acuum systems 2 AK PTFE carbon reinforced PET PP Tubing PTFE Flow control diaphragm PTFE Valve block SYNCHRO design PP Valves valve block SYNCHRO FFKM Distribution head Blind plug PP O ring at catchpot Overpressure safety relief device PTFE silicone rubber Exhaust waste vapor condenser catchpot Borosilicate glass Wetted parts Type ME 8C NT ME 8C NT 2 AK MD 4C NT MD 4C NT 2 AK MD 4C NT AK EK MD 4C ...

Page 24: ...safety relief device 12 Coolant inlet 13 Coolant outlet 14 Flow control diaphragm 15 Manometer 16 Valve block 17 Distribution head 18 Blind plug 19 Voltage selection switch 20 Pump support Pump parts Abbreviations ETFE PTFE FFKM FPM Fluoroelastomer ECTFE PP Polypropylene PBT Polybutylene terephthalate PET Polyethylene terephthalate PPS AK separator for condensates catchpot at inlet or outlet EK ex...

Page 25: ...page 30 of 75 ME 4C NT 1 5 4 7 6 8 2 ME 2C NT 1 5 4 7 6 8 2 ...

Page 26: ...page 31 of 75 1 5 3 4 7 6 2 8 1 3 MZ 2C NT KF 16 MZ 2C NT ME 4C NT 2 AK Power connection see ME 4C NT 6 1 2 7 9 18 17 17 4 19 20 20 ...

Page 27: ...page 32 of 75 ME 8C NT MD 4C NT 1 5 3 4 7 6 2 8 8 5 4 7 6 1 ...

Page 28: ...NT 2 AK 6 1 2 3 7 9 18 18 17 17 Power connection and ON OFF switch see MZ 2C NT 20 20 MZ 2C NT AK EK 6 1 2 18 18 7 10 10 11 12 12 13 13 9 17 17 alternately at the inlet 20 20 Power connection and ON OFF switch see MZ 2C NT ...

Page 29: ...Z 2C NT AK SYNCHRO EK 6 1 3 7 10 10 11 9 14 14 2 12 12 13 13 16 16 20 20 Power connection and ON OFF switch see MZ 2C NT MZ 2C NT AK M D 6 1 2 3 7 9 15 15 14 14 17 20 20 Power connection and ON OFF switch see MZ 2C NT ...

Page 30: ... of 75 PC 101 NT 6 1 3 7 10 10 11 9 14 14 15 15 2 12 12 13 13 17 17 Power connection and ON OFF switch see MZ 2C NT 20 20 6 1 2 7 9 18 17 17 ME 8C NT 2 AK Power connection and ON OFF switch see ME 8C NT 20 20 ...

Page 31: ...f 75 MD 4C NT AK EK 6 1 7 10 10 11 9 2 12 12 13 13 18 18 17 17 3 20 20 Power connection and ON OFF switch see MD 4C NT MD 4C NT 2 AK 6 1 2 3 7 9 18 18 17 17 20 20 Power connection and ON OFF switch see MD 4C NT ...

Page 32: ...K SYNCHRO EK 14 14 1 7 6 9 11 2 12 12 13 13 3 10 10 16 16 20 20 Power connection and ON OFF switch see MD 4C NT PC 201 NT 6 1 7 10 10 11 9 14 14 15 15 2 12 12 13 13 3 17 17 20 20 Power connection and ON OFF switch see MD 4C NT ...

Page 33: ...bing must be at least the size of the pump s exhaust connection Particles and dust must not enter the pump If nec resistance and resistance to clogging prior to use Make sure ventilation is adequate especially if the pump is installed in an enclosure or if the ambient temperature is elevated Provide external ventilation if necessary ical load due to rigid pipelines Insert elastic hoses or rigid pi...

Page 34: ...and to clean the pump after use before it is switched off NOTICE Voltage selection switch 1 Disconnect the electrical power cord 2 Use a screw driver to adjust the voltage selection switch at the terminal box of the pump to the supply voltage 115 120 corresponds to 90 126 V and 230 240 corresponds to 180 253 V voltage selection switch to be sure that the power source and the equipment match in vol...

Page 35: ...ighten the union nut by hand until you can feel the stop Then tighten an additional 1 4 rotation with an Catchpots The catchpot at the inlet protects against drop lets and particles from entering the pump Enhances lifetimes of diaphragms and valves Improves vacuum performance in applica tions with condensable vapors Both catchpots are coated with a protective layer to protect against shattering in...

Page 36: ...zles e g with hose clamps to prevent their accidentally slipping off Prevent the discharge of dangerous gases and vapors to the surrounding atmosphere If appropriate connect the exhaust line to a suitable treatment system Never block the gas outlet 2 hose nozzle for tubing I D 3 8 10 mm The exhaust hose has always to be unobstructed and without back pressure to enable an unhindered discharge of ga...

Page 37: ...04 F 40 C Check the maximum temperatures if installing the pump in a cabinet or a housing Make sure ventilation is adequate especially if the ambient temperature is elevated ft 2000 m above mean sea level check compatibility with applicable safety requirements and adopt suit able measures There is a risk of the motor overheat maximally permitted pressure at outlet and the maximum pressure dif fere...

Page 38: ...cer regularly and replace if necessary In case of overload the motor is shut down by a self hold thermal circuit breaker in the winding thermal circuit breaker Note Only a manual reset is possible Switch off the pump and disconnect the electrical power cord Identify minutes before restarting the pump Note In case of supply voltage below 100V the lock of the breaker may not latch and the pump might...

Page 39: ... the pump or at the outlet of the pump and form hazardous or explo sive mixtures when you use air rather than inert gas damage to equipment and or facilities a risk of per sonal injury or even loss of life Make sure that air gas intake through the gas ballast valve can never lead to hazardous explosive or other wise dangerous mixtures If in doubt use inert gas To reduce condensation in the pump do...

Page 40: ...Important notes concerning the operation of the exhaust waste vapor condenser Connect the exhaust to a suitable treatment system to prevent the discharge of dangerous gases and vapors to the surrounding atmosphere Never block the gas outlet 2 hose nozzle for tubing I D 3 8 10 mm The exhaust hose must always be unobstructed and without back pressure to enable an unhindered discharge of gases Check ...

Page 41: ...or VNC 2 is required The maximum liquid level is at approximately 80 of the catchpots Permissible range of coolant temperature at the exhaust waste vapor condenser 5 F to 68 F 15 C to 20 C Check hose connections prior to starting operation of the cooling system Check coolant hoses regularly during operation Removing the catchpots Catchpot at outlet Remove joint clip Remove catchpot and drain conde...

Page 42: ...he pump to continue to run at atmospheric pres sure for a few minutes Has the pump been exposed to media which may damage the pump materials or form deposits Check and clean pump heads if necessary Long term Take measures as described above regarding short term shutdown Separate the pump from the application Close inlet and outlet ports e g with transport caps Close the gas ballast valve Drain cat...

Page 43: ...dapter G 1 4 thread to PTFE tubing 677060 for inlet at valve block SYNCHRO 662593 for assembly at inlet of valve block SYNCHRO Seal ring 3120565 Hose nozzle for tubing I D 1 4 3 8 DN 6 10 mm 642470 for inlet at valve block SYNCHRO 699939 at inlet of distribution head Hose nozzle for tubing I D 1 4 3 8 DN 6 10 mm 636635 for inlet at distribution head Elbow piece 90 for PTFE tubing 637873 for assemb...

Page 44: ...directly at the valve head at inlet of MZ 2C NT at outlet of ME 8C NT MD 4C NT Elbow connecting piece 90 for PTFE tubing 638434 T piece for PTFE tubing 638435 PTFE tubing sold by meter 638644 Flow control diaphragm valve C2 677137 for assembly at valve block or distribution head Solenoid operated valve C3 B 636668 for assembly at valve block or distribution head Manometer module C5 677100 for asse...

Page 45: ...timate vacuum or usual pumping speed Centring ring at small correctly positioned or leak in the pipeline or vacuum system Check pump directly connect vacuum gauge directly at pump inlet then check connection pipeline and vacuum system if necessary line Use lines with larger di ameter length as short as possible Pump has been ex posed to condensate Allow pump to run for some minutes with atmo spher...

Page 46: ...essure especially with condensable vapors Diaphragm crack or diaphragm clamping disc loose Perform maintenance Other than above men tioned causes Contact local distributor Pump seized Contact local distributor A service manual with exploded view drawings spare parts list and directions for repair is available on request The service manual is intended for trained service people only ...

Page 47: ...ted before maintenance Avoid the release of pollutants Never operate a defective or damaged pump Take adequate precautions to protect people from the effects of dangerous substances that may have con taminated the pump and may be released upon dis assembly Ensure that the maintenance technician is familiar with the safety procedures which relate to the products processed by the pumping system Use ...

Page 48: ...ltimate vacuum is no longer achieved or in case of increased noise level the pump interior the diaphragms and the valves must be cleaned and the diaphragms and valves must be checked for cracks or other damage lubricant Under normal operating conditions the drive system is maintenance free and clean the pump heads on a regular basis In normal use the lifetime of the diaphragms and valves is typica...

Page 49: ...The head covers can be removed along with the as Service only one side of the pump at a time to avoid the mixing of parts Cleaning and inspecting the pump heads Pump on pump support Remove catchpots 9 at inlet and outlet see Use and operation page 38 er cowling W with a Torx driver T20 Pay attention to the washers under the screws and remove Pull off head cover cowling W carefully Do not tilt W ...

Page 50: ...page 55 of 75 Fittings and tubing of the different pump models ME 4C NT MZ 2C NT ME 8C NT MD 4C NT ...

Page 51: ...page 56 of 75 MZ 2C NT 2AK MZ 2C NT AK EK MZ 2C NT AK SYNCHRO EK PC 101 NT MD 4C NT 2AK MD 4C NT AK EK MD 4C NT AK SYNCHRO EK PC 201 NT ME 8C NT 2 AK ...

Page 52: ...amping disc with square head screw H Allen screw I Cap J Head cover K Square nut View of the disassembled pump head parts M O ring N Valve O Valve head P Hose nozzle Q Connection fastener with hinged cover R Disc spring S Clamping bracket T Countersunk screw U Hose clip V Connection tube This labeling is used throughout the following pages ...

Page 53: ...lve head O Open the hose clip U with a slotted screw driver Pull the tubing off the hose connector Disassemble head covers J to check the diaphragm F Unscrew four pump with one two heads or eight pump with four heads Allen screws H with a 5mm wide Allen key Remove both head covers J pumps with one two heads only one head cover together with valve heads O and connections It is not necessary to disa...

Page 54: ...ween the diaphragm support disc E and the connecting rod B Do not mix the washers from the different pump heads since these are set at the factory to ensure proper pump per formance Make sure that the original number is reassembled at the individual pump head many washers Diaphragm clamping disc will hit head cover causing noisy operation and possibly causing the pump to seize up disc immerse asse...

Page 55: ...ecommended to use a torque wrench Attach torque wrench to dia phragm key hexagonal bolt 6 mm wide Note Never use the diaphragm key with any additional tools like tongs or Allen keys without appropriate torque limitation heads O Unscrew at each clamping bracket the two countersunk screws with a Torx driver T20 Remove the clamping brackets driver T20 at most one turn the square nut K Open the hinged...

Page 56: ...emove deposits Do not inhale vapors ure for the correct position of the valves Inlet side IN Marked IN next to the valve seat The valve tongue points at the kidney shaped Outlet side EX Marked with EX next to the valve seat The valve is oriented the same direction as the valve at the inlet side EX IN Position valve heads O with hose nozzle P if applicable connection tube or con nection fastener Q ...

Page 57: ...Put on head cover J with valve heads O and connections attached Pay attention to the correct orientation of the head covers Housing with head alignment pin The head alignment pin A at the pump housing C J Housing with mark A Align the recess at the head cover with the mark at the pump housing with a 5 mm wide Allen key then tighten Recommended torque 8 9 ft lbf 12 Nm Slide the caps I into the head...

Page 58: ...e head cover cowling connection fasteners Q with a Torx driver T20 Close the hinged covers of the pump at the valve head O Pump on pump support of the pump as well as the hose connection to the inlet or outlet of the vacuum system at the valve head O Slip connecting tube V onto hose connection of valve head Slide on the tube and the hose clip U until touching the nose at the valve head I Q Replace...

Page 59: ...witch off pump immediately and check clamping disc positions change after the break in period Check hose connectors at pump heads for leaks If necessary recheck valve seats and pump chambers Checking the ultimate vacuum After any intervention at the equipment e g repair maintenance the ultimate vacuum of the pump has to be checked Only if the pump enough to ensure that no explosive atmospheres wil...

Page 60: ...nstall the new one Check for correct position of the PTFE foil under the pressure relief valve Feed the PTFE hose into the inlet of the exhaust vapor condenser Mount the con denser with the counter holder Torx screws T10 to the pump Fasten union nut Overpressure safety relief device 638821 at exhaust waste vapor condenser Remove catchpot 9 at outlet see Use and operation pg 38 haust vapor condense...

Page 61: ...lectrical power cord before open ing the terminal box After disconnecting from power to allow the capacitors to discharge The replacing of the fuse has to be carried out by a trained electrician After replacing the fuse the pump must be checked for electric safety see below Identify and eliminate the cause of failure before switching on the pump again Important Check operability and safety of the ...

Page 62: ...ecked maintained or re paired Also decontaminated devices must not returned to VACUUBRAND due to a residual risk The same conditions apply to on site work No repair maintenance return or calibration is possi ble unless the correctly completed health and safety clearance form is returned Devices sent are rejected if applicable Send a completed copy of the health and safety clearance form to us in a...

Page 63: ...ld occur We will also replace parts for cosmetic reasons at your request and at your expense Before returning the device Pack the device properly if necessary please order origi nal packaging materials at your costs Mark the package completely Enclose the completed health and safety clearance form Notify the carrier of any possible contamination if required Scrapping and waste disposal Dispose of ...

Page 64: ...roduct or the consequences of normal wear and tear of wearing parts such as diaphragms seals valves vanes condensers oil and the breakage of glass or ceramic parts for the consequences of chemical electrochemical tions in this manual Claims for defects against VACUUBRAND shall be limited to one year from delivery The same shall apply to claims for damages irrespective of legal grounds For further ...

Page 65: ...int or a replacement of parts for reason of appearance repaint and replacement at customer s expense yes no 12 Legally binding declaration We assure for the returned device that all substances which have been in contact with the device are listed in section 5 and that the information is complete and that we have not withheld any information We declare that all measures where applicable have been t...

Page 66: ...0 732701 732702 732800 732801 732802 733000 733001 733002 734200 734201 734202 2614122 734405 736400 736401 736402 2614826 736600 736601 736602 736700 736701 736702 736710 2613972 736800 736801 736802 737000 737001 737002 Seriennummer Serial number Numéro de série Siehe Typenschild See rating plate Voir plaque signalétique Angewandte harmonisierte Normen Harmonized standards applied Normes harmoni...

Page 67: ...page 72 of 75 tive mark Licensed Test mark on the pump rating plate ...

Page 68: ...page 73 of 75 China RoHS ...

Page 69: ...page 74 of 75 ...

Page 70: ...erefore strictly the users responsibil requirements No claims arising from the information provided in this lit erature will consequently be entertained VACUUBRAND GMBH CO KG Technology for Vacuum Systems 2017 VACUUBRAND GMBH CO KG Printed in Germany Manual no 999156 07 07 2017 Alfred Zippe Str 4 97877 Wertheim Germany T 49 9342 808 0 F 49 9342 808 5555 info vacuubrand com www vacuubrand com ...

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