Rotary Vane Pump DUO 5 M DUO 5 MC
Contents
1. 6 3 Shutting Down For Longer Periods Should the pump have to be shut down for an longer period the complete pumping system must be adequately protected against corrosion Switch off pump Unscrew operating fluid drain screw 198 and drain opera ting fluid as per Section 6 1 m Screw in operating fluid drain screw 198 keep an eye on the position of the O ring Allow pump to run for about 10 seconds with open vacuum flange O Drain off remaining operating fluid Fill up pump with fresh operating fluid filling level upper end of sight glass 110 If this amount of operating fluid is filled in the level is extremely high but this is necessary to protect all parts of the pump against corrosion Before operating the operating fluid must be reduced to its normal level PFEIFFERE VACUUM 11 Service Do Make Use Of Our Service Facilities In the event that repairs are necessary to your pump a number of options are available to you to ensure any system down time is kept to a minimum Have the pump repaired on the spot by our Pfeiffer Vacuum Service Engineers Return the individual components to the manufacturer for repairs Replace individual components with a new value exchange units Local Pfeiffer Vacuum representatives can provide full details Before Returning Dismantle all accessories Drain lubricant Attach a clearly visible notice Free of contamination to the u2. 152 O ring 154 O ring 158 O ring 160 O ring 162 O ring 188 Allan head screw 184 Allan head screw 204 Circlip 208 Compression spring for valve buffer 220 Screw 250 Compression spring for vacuum safety valve 254 O ring 152 32 147 250 254 158 20 PK200 1 24 184 80 o 18 114 16 PFEIFFERE VACUUM Declaration of Contamination of Vacuum Equipment and Components The repair and or service of vacuum components will only be The manufacturer could refuse to accept any equipment carried out if a correctly completed declaration has been without a declaration submitted Non completion will result in delay This declaration can only be completed and signed by authorised and qualified staff 1 Description of component 2 Reason for return Equipment type model Code No Serial No Invoice No Delivery Date 3 Equipment condition 4 Process related contamination Has the equipment been used of equipment yes I no toxic yesO noo What type of pump oil was used corrosive yes no microbiological hazard yes C1 no Is the equipment free from potentially harmful explosive ves 1 no substances radioactive yesO noo yes Li go to section 5 other harmful substances yes no no I go to section 4 We will not accept delivery of any equipment that has been radioactively or mi
3. 10 1 Spare Parts Package Revision Set of seals Pump type index Maintenance kit Overhaul kit Set of vacuum safety valve The pack contains the wearing parts of the vacuum safety valve Also the o rings between valve housing and pumping system and the o ring of the casing are included Set of discharge valves The pack contains the wearing parts of the discharge valves Also the wearing parts of the exhaust valve and the o ring of the casing are included Coupling kit The pack contains the coupling halfs can and the respective o ring Vacuum safety valve Dischargevalves Coupling kit DUO 5 up to B DUO 5C wizhout Spare parts package No PK E30 005 PK E31 004 PK E32 008 PK E32 006 Vacuum safety valve PK E34 004 PK E35 002 PK E36 005 Set of seals Maintenance kit Overhaul kit Discharge valves Coupling kit PK E30 005 T PK E30 005 T PK E31 004 T PK E31 004 T PK E32 008 T PK E32 006 T PK E34 004 T PK E34 004 T PK E35 002 T PK E35 002 T PK E36 005 T PK E36 006 T Parts according to the exploded view on the following pages 76 112 138 141 142 144 147 148 149 150 152 154 156 158 160 162 254 138 144 162 PK E30 005 T 7 8 9 10 32 44 51 100 102 106 110 114 PK E30 005 T 7 8 9 10 32 44 51 100 102 106 110 114 30 32 34 70 100 106 108 147 152 154 160 188 204 208 220 250 100 102 184 204 208 18 20 24 184
4. 254 PK E36 006 18 20 24 184 254 The use of other spare parts than mentioned in this instruction requires prior authorisation from Pfeiffer Vacuum PLEASE NOTE The spare parts packages listed above are only valid for the pumps in standard versions When ordering please be sure to state the full information given on the rating plate Only authorized experienced and trained personnel are permitted to make changes or perform maintenance or repairs Unapproved changes by the customer void all warranty and liability claims against Pfeiffer Vacuum Please use our Service Training offers information is also available via www pfeiffer vacuum net PFEIFFER VACUUM 15 10 2 Exploded view 7 Vanes rough stage 8 Vanes medium stage 9 Hydraulic vanes 10 Compression spring 18 Central coupling drive 20 Central coupling pump 24 Can 30 Housing high vacuum safety valve 32 Valve plate 34 Valve cover for vacuum safety valve 42 Housing gas ballast valve further parts see Section 6 2 44 Silencer screw 51 Plate spring gas ballast valve 10 Valve trap 16 Rapid action coupling 18 Compression spring 80 Base plate 84 Oil nozzle 100 Valve buffer 102 Valve plate 106 Hydraulic piston 108 Compression spring vacuum safety valve 110 Sight glass 112 Sight glass seal 114 Rubber foot 138 O ring 141 O ring 142 O ring 144 O ring 147 O ring 148 O ring 149 O ring 150 O ring
5. For Longer Periods 11 iSANG 12 8 Technical Data 13 S NECI RNC 13 9 AGCOSSOTIBS isss 14 10 Spare Parts aaa 15 10 1 Spare Parts Package sss 15 10 2 Exploded VIEW irn 16 Declaration Of Contamination 17 Conformity Declaration last page 2 PFEIFFERE VACUUM Please note Current operating instructions are also available via www pfeiffer vacuum net 1 Safety Precautions t Read and follow all the instructions in this manual c Inform yourself regarding Hazards which can be caused by the pump Hazards which can arise in your system Hazards which can be caused by the medium being pumped t Avoid exposing any part of your body to vacuum t Observe all safety and accident prevention regulations t Check regularly that all safety requirements are being complied with t Do not use the pump for the purpose of generating pressure t Do not carry out any unauthorised conversions or modifications on the pump t When returning the pump to us please note the shipping instructions in the section on service The following safety instructions are only relevant when dismantling the drive system t When dismantling the drive system from the pump casing the powerful magnetic field of the coupling system can influence the function and operational safety of electrical and
6. electronic units Persons who have a heart pacemaker must stay outside the area of influence of magnetic fields There is a danger of life BEWARE t Do not place the dismantled magnetic coupling in the vici nity of computers data carriers and other electronic components t On no account allow the two parts of the magnetic coupling to come into contact There is a danger of crushing t Keep all magnetisable parts away from the magnetic coupling There is a danger of personal injury 1 1 For Your Orientation Instructions in the text Operating instruction Here you have to do something Symbols used The following symbols are used throughout in the Illustrations Q vacuum flange CN Exhaust flange 6as ballast valve Power connection Position numbers Identical pump and accessory parts have the same position numbers iin all illustrations 1 2 Pictogram Definitions Strong magnetic field Danger of personal injury BEWARE AR Danger of personal injury Danger of burns from touching hot parts CAUTION Danger of damage to the pump or system Attention to particularly important information on the product handling the product or to a particular part of the documentation PLEASE NOTE Modifications reserved PFEIFFERE VACUUM 3 2 Understanding The Pump 2 1 Main Features Rotary Vane Vacuum Pump DUO 5 DUO 5 C Q9 Vacuum f
7. improper The pumping of corrosive gases except with corrosive gas processes version The pumping of explosive gases Operating the pump in locations where there is an explosi on hazard The pumping of gases which are contaminated with particles dust and condensate Avoid condensation and sublimation take note to the vapour compatability The Pump may not be used for the purpose of generating pressure The pumping of liquids Connection to pumps and units which is not permitted according to their operating instructions Connection to units which contain touchable and voltage Carrying parts Improper use will cause any rights regarding liability and guarantees to be forfeited 2 2 Differences Between The Pump Types Pump versions DUO5 Standard pump version DUO 5C Corrosive gas processes version pump Divergences to the standard pump version operating fluid F4 encapsulated can of the magnetic coupling different material for the vanes gas vallast valve with hose connection 3 Installation 3 1 Preparations For Installation At pumps with three phase motors check the direction of rotation before filling in the operating fluid Pumps with single phase motors are not concerned Fill up with operating fluid before operating the first time included in a separate pack in the delivery consignment When filled with operating fluid do not tilt the pump otherwise operating flu
8. transport containers Repair orders are carried out according to our PLEASE NOTE ba general conditions of sale and supply gt f repairs are necessary please send the unit together with a short damage description to your nearest Pfeiffer Vacuum Service Center 8 Technical Data Feature DUO 5 DUO 5C Connection nominal diameter Input DN 16 ISO KF Output DN 16 ISO KF Nominal pumping speed at 50 Hz 5 5 60 Hz 6 6 Pumping speed at 50 Hz 60 Hz Final pressure Total without gas ballast Total with gas ballast Exhaust pressure min Exhaust pressure max Water vapour compatibility 50 Hz 60 Hz Water vapour capacity 50 Hz 60 Hz Noise level without gas ballast Alternating current version Three phase current version Operating fluid Max permissible operating temperature at 25 C ambient temperature and operating fluid P3 without gas ballast Rotation speed at 50 Hz 60 Hz Rated power motor Alternating current version Three phase current version Weight approx Alternating current version Three phase current version 8 1 Dimensions DUO 5 DUO 5 C i A 145 58 DN 16 MOST TUN O 76 IA n 107 100 114 6 7 variabel 135 Pump with three phase motor Pump with alternating current motor aaa coe 433 435 mm d 204 without motor protection switch 223 with motor protection switch 215 PFEIFFERE VACUUM 13 9 Accessories Description Number Comments Order Quantity
9. Betriebsanleitung Operating Instructions Rotary Vane Pump DUO 5 M DUO 5 MC PK 0197 BE G 0603 E VACUUM PFEIFFER LI a i dim INDEX Page 1 Safety Precautions 3 1 1 For Your ONE ANO Naan Gian 3 1 2 Pictogram Definitions AA 3 2 Understanding The Pump 4 2 1 Main Fed BS apa HE Ras tete 4 gini E 4 Improper USE nennen 4 2 2 Differences Between The Pump Types 4 3 Installation siivisicesintcecseetervetssviesnernnsaeneiwesas 5 3 1 Preparations For Installation 5 3 2 Pump Set Up And Location sss 5 3 9 Connecting The Vacuum Side 5 3 4 Connecting The Exhaust Side 5 3 5 Connecting To The Mains Power Supply 6 4 6 17 6 1 111 e 7 4 1 Filling Up And Checking The Operating Fluid 7 4 2 Switching The Pump ON And OFF 7 4 3 Extracting Dry Gases And Vapours 8 5 What To Do In Case Of Breakdowns eene 9 6 Maintenance 000000 eren 10 6 1 Replacing The Operating Fluid 10 6 2 Cleaning And Replacing The Silencer 11 6 3 Shutting Down
10. Operating Instructions Dust Separator STP 025 DN 25 ISO KF PK Z60 106 only with adapter DN 25 16 PK 800 120 BN Oil Mist Filter ONF 16 DN 16 ISO KF PK Z40 003 PK 800 213 BN Oil Return Unit ONFR PK 196 172 T PK 800 213 BN Condensate Separator KAS 16 DN 16 ISO KF PK Z10 003 PK 800 220 BN Cooling Trap KLF 025 DN 25 ISO KF PK Z80 006 PD 0015 BN Adsorption Filter FAK 025 DN 25 ISO KF PK Z30 006 PD 0017 BN Adsorption Filter FBL 025 DN 25 ISO KF PK Z30 106 PD 0017 BN Zeolite Trap ZFO 0252 DN 25 ISO KF PK 270 006 PD 0016 BN PTC Tripping Unit P 4768 051 FQ Operating Fluid F4 1 litre PK 005 887 T Operating Fluid F4 0 5 litre PK 005 886 T Operating Fluid F4 0 25 litre PK 005 885 T 2 Filled with zeolite Please refer to the Pfeiffer Vacuum catalogue Components For Vacuum Technology for further accessories or on request 14 PFEIFFER VACUUM 10 Spare Parts Set of seals The set of seals contains all seals including all o rings of the subassemblies Maintenance kit The pack contains the o rings of the operating fluid filler and drain screw for changing the operating fluid Also the o ring for the casing after cleaning the operating fluid sump is inclu ded Overhaul kit The pack contains all wearing parts of the pump to replace the following parts after dismantling the whole pump Set of seals Wearing parts of the pumping system Wearing parts of the vacuum safety valve Wearing parts of the gas ballast valve
11. al waste disposal regulati ons PLEASE NOTE Remove operating fluid filler screw 200 Fill up with operating fluid included in the consignment refer to rating plate for correct quantity and typ of operating fluid Replace operating fluid filler screw 200 be careful with the O ring gt Check operating fluid level only when the pump is warm and running and vacuum connection Q and gas ballast valvel and operating fluid filler screw are closed The level should be between the two markings on sight glass 110 The minimum level is the lower marking on sight glass 110 Topping up operating fluid is possible when the pump is in final vacuum operations n non stop operations check operating fluid daily otherwise whenever the pump Is switched on 4 2 Switching The Pump ON And OFF The pump can be switched ON and OFF in any pressure range Lowest start up temperature in compliance with German Industrial Standard DIN 28 426 12 C On switching OFF intake pressure lt 750 mbar the built in high vacuum safety valve to the vacuum chamber closes automatically and the pump is vented Danger of burns when touching hot parts WARNING l 2 During operations temperatures of obove 70 C A can arise at the pump s surface Protect pump by means of suitable measures e g dust separator when the pumped gases are contaminated with particles or dust If necessary check operating fluid regular or change operati
12. cified below is in accordance with the provision of EU Machinery Directive 98 37 EEC EU Electromagentic Compatibility Directive 89 336 EEC and EU Low Voltage Directive 2006 95 EC Produkt Product DUO 5 M DUO 5 MC Angewendete Richtlinien harmonisierte Normen und angewendete nationale Normen in Sprachen und Spezifikationen Guidelines harmonised standards national standards in languages and specifications which have been applied DIN EN ISO 12100 1 2 EN 60335 1 41 EN 294 EN 60 204 EN 50 081 1 2 EN 1012 2 EN 61 010 Unterschriften Signatures Pfeiffer Vacuum GmbH Berliner Str 43 N cn v 35614 Asslar Germany M Bender Dr M Wiemer Geschaftsfuhrer Geschaftsfuhrer Managing Director Managing Director Konf l 2007 HxG 96 Mu Nag NM O1 E Vacuum is nothing but everything to us Turbo Pumps Rotary Vane Vacuum Pumps Roots Pumps Dry Vacuum Pumps Leak Test Units Valves Flanges Feedthroughs Vacuum Measurement Gas Analysis System Technology Service PFEIFFER E VACUUM Pfeiffer Vacuum Technology AG Headquarters Germany Tel 49 0 64 41 8 02 0 Fax 49 0 64 41 8 02 2 02 info 9 pfeiffer vacuum de www pfeiffer vacuum net
13. crobiologically contaminated without written evidence of decontamination Please list all substances gases and by products which may have come into contact with the equipment Tradename Chemical name Danger class Precautions associated Action if spillage or human Product name or Symbol with substance contact Manufacturer 1 2 3 4 5 5 Legally Binding Declaration hereby declare that the information supplied on this form is complete and accurate The despatch of equipment will be in accordance with the appropriate regulations covering Packaging Transportation and Labelling of Dangerous Substances Name of Organisation Address Post code Tel Fax Telex Name Job title Date Company stamp Legally binding signature PFEIFFERE VACUUM 17 PFEIFFER VACUUM mr gt C Konformit tserkl rung C Declaration of Conformity im Sinne folgender EU Richtlinien pursuant to the following EU directives Maschinen Machinery 98 37 EG Anhang Annex IA Elektromagnetische Vertraglichkeit Electromagnetic Compatibility 89 336 EWG Niederspannung Low Voltage 2006 95 EG Hiermit erkl ren wir da das unten aufgef hrte Produkt den Bestimmungen der EU Maschinen richtlinie 98 37 EG der EU Richtlinie ber Elektromagnetische Vertraglichkeit 89 336 EWG und der EU Niederspannungsrichtlinie 2006 95 EG entspricht We hereby certify that the product spe
14. defects Dispose of used operating fluid in compliance with local regulations When working with synthetic operating media toxic substances and substances contaminated with corrosive gases the relevant instructions governing their use must be observed Only use benzine or similar agents for cleaning pump parts Do not use soluble cleaning agents 6 1 Changing The Operating Huid The rate of deterioration of the operating fluid depends on the pump applications m The level of deterioration of organic operating fluids for example P3 can be read off from the colour scale in accordance with DIN 51578 on the supplementary sheet PK 800 219 BN B on request The colour scale enables precise colour determination Fill a specimen in a test tube or some similar vessel and test by holding against the light gt Where the discolouration is dark yellow to red brown equivalent to 4 5 on the scale change operating fluid Where organic operating fluids for example P3 are involved the operating fluid should be changed at least once a year Replacing The Operating Fluid Switch off the pump gt Unscrew operating fluid drain screw 198 and drain opera ting fluid 10 PFEIFFERE VACUUM The operating fluid temperature can be as high as 80 C During maintenance and repair work process related toxic gases and vapours can escape from the operating fluid which may become contaminated with harmful subs
15. id could escape via the vacuum and exhaust flanges 3 2 Pump Set Up And Location When transporting use only the handle provided for the purpose Where stationary installation is involved anchor the pump on site Sight glass 110 on the front side must be visible and the gas ballast valve readily accessible When installing the pump in a closed housing ensure there is sufficient air circulation Maximum angle of inclination to each side 10 Maximum erection height 2000 m N N Maximum and minimum ambient temperature 40 C and 12 C respectively Maximum relative humidity 85 J 3 Connecting The Vacuum Side gt Keep the connection between the vacuum chamber and pump as short as possible gt Remove all scaling and loose particles from welded lines prior to assembly To protect the pump separators filters and cooling traps etc see Section 9 Accessories can be fitted upstream of the pump However the conductance values of the acces sory causes a reduction in volume flow rate Forthe intake lines metal or PVC hoses with small flanges are available 3 4 Connecting The Exhaust Side i in exhaust CAUTION Pressure can rise to dangerous levels exhaus lines Therefore exhaust lines which should be of minimum diameter DN 16 should not be fitted with shut off units Lay lines from the pump sloping downward so that no condensate can flow back into the pump Otherwise fit a separator If exhaus
16. lange C Exhaust flange Gas ballast valve Power connection 26 Support stand 28 Casing 42 Housing gas ballast valve 80 Base plate 110 Sight glass 142 O ring for operating fluid drain screw 144 O ring for operating fluid filler screw 198 Operating medium drain screw 200 Operating fluid filler screw 280 Motor 28 200 144 110 42 198 142 The DUO 5 5C is a dual stage rotary vane vacuum pump with magnetic coupling for various applications in the rough and medium vacuum The separation of the rotor and motor shaft eliminates the problem of the radial shaft seal providing a hermeticalled sealed pump The wear free drive prevents leaks minimizes maintenance and increases the MTTF During intentional and unintentional shutdowns an integrated high vacuum safety valve immediately separates the pump from the vacuum chambers and vents the pump Applications Mass Spectrometry Backing pump for turbos Any Lab Application 4 PFEIFFERE VACUUM New drive concept with integrated magnetic coupling Innerer Magnet pa TG i BA Matarw 1 Atmosph re a Au erer Magnet Proper Use Rotary Vane Vacuum Pumps may only be used to generate vacuum Installation start up operating and maintenance instructions must be observed Accessories other than those named in this manual may not be used without the agreement of Pfeiffer Vacuum Improper Use The following are regarded as
17. ng fluid more frequent CAUTION gt To make shure that the high vacuum safety valve works proper at any intake pressure there should be at least a pressure difference of 250 mbar between the intake and the exhaust side PLEASE NOTE PFEIFFERE VACUUM 1 4 3 Extracting Dry Gases And Vapours Gas ballast valve No special measures are necessary providing the correct pump version is being operated selection of operating fluid materials etc To avoid condensation in the pump vapours should only be pumped off when the pump is warm and with gas ballast valve open Note pump water vapour compatibility levels under Section 8 Technical Data When the process has been completed allow the pump to continue running for about 30 minutes with open gas ballast valve for operating fluid regeneration purposes Gas Ballast Valve Standard Version Air is periodically fed into the working chamber at the beginning of the compression phase via the gas ballast valve The gas ballast valve is shut when turning to the right to posi tion 0 and open when turning to the left to position 1 Intermediate settings are not possible Gas Ballast Valve Corrosiv Gas Version If the pumping process requires the connection of flushing gas an elbow fitting can be provided for the gas ballast valve in c version please refer to Chapter 10 Spare Parts Connect flushing gas at the gas ballast inlet 224 Adju
18. nit being returned the delivery note and accompany ing paperwork Harmful substances are substances and preparations as defined in current legislation Pfeiffer Vacuum will carry out the decontamination and invoice this work to you if you have not attached this note This also applies where the operator does not have the facilities to carry out the decontamination work Units which are contaminated microbiologically explo sively or radioactively cannot be accepted as a matter of principle Fill Out The Contamination Declaration n every case the Contamination Declaration must be completed diligently and truthfully A copy of the completed declaration must accompany the unit any additional copies must be sent to your local Pfeiffer Vacuum Service Center Please get in touch with your local Pfeiffer Vacuum represen tatives if there are any questions regarding contamination 12 PFEIFFER VACUUM Decontaminate units before returning or possible disposal Do not return any units which are microbiologically explosively or radio actively contaminated WARNING Returning Contaminated Units If contaminated units have to be returned for maintenance repair the following instructions concerning shipping must be followed without fall Neutralise the pump by flushing with nitrogen or dry arr Seal all openings to the air Seal pump or unit in suitable protective foil Ship units only in appropriate
19. st pressure of sealing gas pen gas ballast valve HINWEIS Flushing gas pressure may not exceed 1 5 bar absolute The type of flushing gas is dependent on the medium being pumped Our specialists would be pleased to give advice regarding the type and volume of flushing gas required b ia N 8 PFEIFFER E VACUUM 5 What To Do In The Case Of Breakdowns Problem Possible Cause Remedy Pump doesn t attain final pressure e Pump dirty e Cleaning the pump e Operating fluid dirty e Operate pump for a longer period with open gas ballast valve or change operating fluid e Leak in system Repair leak Unusual operating noises e Silencer dirty Clean silencer or change as per section 6 2 e Pump stage damage Request repair by Pfeiffer Vacuum Service Pump doesn t start e Ambient temperature 12 C Warm up pump e Dirty pump stages Request cleaning by Pfeiffer Vacuum Service e Damaged pump stages Request repair by Pfeiffer Vacuum Service Any other repairs may only be carried out by qualified personnel in conjunction with the service instructions PFEIFFERE VACUUM 9 6 Maintenance When carrying out servicing work take the following precautions WARNING Always maSur the pump cannot be switched on when carrying out any work on the pump If necessary remove the pump from the system to carry out inspection work Only dismantle the pump as far as is necessary in order to repair
20. t gases are extracted the exhaust pressure must not fall below 250 mbar Forces from the piping system may not be allowed to act on rotary vane pumps which are anchored All piping to the pump must be suspended or supported PFEIFFERE VACUUM 5 3 5 Connecting To The Mains Power Supply Single phase motor Power connections must comply with local regulations Voltage and frequency information given on the rating plate must correspond to the mains voltage and frequency values CAUTION The DUO 5 DUO 5 C is fitted with a single phase motor with integrated thermal protection switch power button and connecting cable as standard DUO 5 with single phase motor The transmission power of the pump s magnetic coupling is so great that there is no overload protection for the motor Three phase motor When switching on pumps with three phase motors for the first time check the direction of rotation WARNUNG Always check the direction of rotation without operating fluid filled in otherwise operating fluid could eject via the vacuum flange 6 PFEIFFERE VACUUM Checking The Direction 0f Rotation Remove locking cap from the exhaust flange Switch on for a short time 2 3 seconds Motor motor fan must turn clockwise see arrow on support stand f direction of rotation incorrect Interchange two phases on the connecting cable Fill in operating fluid The motor protection switch has been set according to
21. tances radioactive chemical etc Disposal of used operating fluid is subject to the relevant regulations WARNING m Screw in operating fluid drain screw 198 Allow pump to run for about 10 seconds with open vacuum flange Drain off remaining operating fluid n the case of serious contamination the operating fluid will have to be changed several times m Screw in operating fluid drain screw 198 with O ring gt Fill in fresh operating fluid and check level as per section 4 1 WARNING OPerating fluid can contain substances from the medium pumped Operating fluid must be disposed of in accordance with the local respective regulations Please request safety instruction data sheets for operating fluids from Pfeiffer Vacuum 6 2 Cleaning And Replacing The Silencer The Silencer 44 is a nozzle inside the pump housing and cannot be altered when dirty it should either be cleaned or replaced Dismantling gt Unscrew 2 cheesehead screws 182 from the casing gt Remove the gas ballast valve housing 42 from the casing 28 taking care with o ring 148 gt Unscrew silencer nozzle 44 and remove in vertical direction take care with o ring 138 gt Clean silencer nozzle 44 and o ring and replace if necessary Dismantling silencer Casing Gas ballast valve housing Silencer nozzle Leaf spring O ring O ring O ring Cheesehead screws 211 Washer 224 Elbow fitting 44 148 C version
22. the nominal voltage levels provided Three phase motors with PTC The motors of these pumps are fitted with three PTCs which are built into the stator windings The connection of a tripping unit and a contactor in the power supply line according the wiring diagram will protect the pump against overloading Power part with motor to be protected 400V 3 50Hz Use a tripping unit with error signal storage e g a PTC tripping unit with two switchover contacts at the output see Section 9 Accessories 4 Operations Rotary Vane Pump DUO 5 DUO 5 C Q9 Vacuum flange fy Exhaust flange Gas ballast valve O Power connection 26 Support stand 28 Casing 42 Housing gas ballast valve 80 Base plate 110 Sight glass 198 Operating fluid drain screw 200 Operating fluid filler screw 280 Motor 4 1 Filling Up And Checking The Operating Fluid Standard version pumps are tested with opera ting fluid P3 Guarantees relating to attainment of final pressures and trouble free functioning apply only providing this operating fluid is used The delivery consignment contains sufficient operating fluid for one filling Pumps for special applications e g for pumping corrosive gases can be operated with special operating fluids such as F4 and other Pfeiffer Vacuum operating fluids The use of such operating fluids requires prior authorisation from the manufacturer Operating fluid must be disposed of in accordance with loc
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