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Dear Customer,

Thank you for choosing a Pfeiffer Vacuum product. Your new rotary vane pump is designed 
to support you by its performance, its perfect operation and without interfering your individual 
application. The name Pfeiffer Vacuum stands for high-quality vacuum technology, a 
comprehensive and complete range of top-quality products and first-class service. With this 
expertise, we have acquired a multitude of skills contributing to an efficient and secure 
implementation of our product.
Knowing that our product must not interfere with your actual work, we are convinced that our 
product offers you the solution that supports you in the effective and trouble-free execution of 
your individual application.
Please read these operating instructions before putting your product into operation for the 
first time. If you have any questions or suggestions, please feel free to contact 

info@pfeiffer-

vacuum.de

.

Further operating instructions from Pfeiffer Vacuum can be found in the 

Download Center

 on 

our website.

Disclaimer of liability

These operating instructions describe all models and variants of your product. Note that your 
product may not be equipped with all features described in this document. Pfeiffer Vacuum 
constantly adapts its products to the latest state of the art without prior notice. Please take 
into account that online operating instructions can deviate from the printed operating 
instructions supplied with your product.
Furthermore, Pfeiffer Vacuum assumes no responsibility or liability for damage resulting from 
the use of the product that contradicts its proper use or is explicitly defined as foreseeable 
misuse.

Copyright

This document is the intellectual property of Pfeiffer Vacuum and all contents of this 
document are protected by copyright. They may not be copied, altered, reproduced or 
published without the prior written permission of Pfeiffer Vacuum.
We reserve the right to make changes to the technical data and information in this document.

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Summary of Contents for DUO 11 ATEX

Page 1: ...OPERATING INSTRUCTIONS EN Translation of the Original DUO 11 ATEX Rotary vane pump...

Page 2: ...eiffer vacuum de Further operating instructions from Pfeiffer Vacuum can be found in the Download Center on our website Disclaimer of liability These operating instructions describe all models and var...

Page 3: ...cuum 20 3 Product description 21 3 1 Function 21 3 2 Operating principle 22 3 3 Scope of delivery 22 3 4 Identifying the product 22 4 Transportation and Storage 23 4 1 Transporting the vacuum pump 23...

Page 4: ...1 General disposal information 46 9 2 Dispose of rotary vane pump 46 10 Malfunctions 47 11 Service solutions by Pfeiffer Vacuum 49 12 Spare parts 51 12 1 Maintenance kit 1 maintenance level 1 51 12 2...

Page 5: ...nt values for fuse layout 30 Tbl 8 Maintenance intervals 40 Tbl 9 Troubleshooting for rotary vane pumps 48 Tbl 10 Spare parts pack Duo 11 ATEX 51 Tbl 11 Content of maintenance kit 1 51 Tbl 12 Ordering...

Page 6: ...ng the grounding cable 28 Fig 9 Delta connection for low voltage 29 Fig 10 Star circuit for high voltage 29 Fig 11 Connection example with PTC thermistor tripping unit 31 Fig 12 Filling the operating...

Page 7: ...uctions Refer to Accessories 1 1 2 Variants Pump type Pump version Duo 11 ATEX Version with magnetic coupling 1 2 Target group These operating instructions are aimed at all persons performing the foll...

Page 8: ...oil check direction of rotation of the pump ATTENTION Avant remplir l huile v rifier le sense de rotation de la pompe Sticker yellow Attention Check the direction of rotation of the rotary vane pump...

Page 9: ...BA Operating instructions DN Nominal diameter from the French diam tre nominal ISO International Organization for Standardization abs Absolute DIN German Institute for Standardization Deutsches Insti...

Page 10: ...s docu ment 2 2 Safety instructions All safety instructions in this document are based on the results of the risk assessment carried out in accordance with Machinery Directive 2006 42 EC Annex I and E...

Page 11: ...al injuries if these media are permitted to leak into the atmosphere Refer to the corresponding local guidelines This information can be obtained from the Depart ment of Health and Safety at Work of t...

Page 12: ...m to be pumped is maintained above a tem perature of 135 C at 2000 hPa abs WARNING Danger of poisoning due to toxic process media escaping from the exhaust pipe During operation with no exhaust line t...

Page 13: ...lead to dangerous situations e g increased exhaust pressure There is a danger of bursting Injuries caused by flying fragments the escaping of high pressure and damage to the unit cannot be excluded Ro...

Page 14: ...cess media can cause operating fluid contamination When changing the operating fluid there is a health hazard due to contact with poisonous substances Illegal disposal of toxic substan ces causes envi...

Page 15: ...uch protection if the surface temperature exceeds 70 C 2 4 ATEX classification and safety measures Vacuum pumps of the ATEX series are specially designed and manufactured to comply with the re quireme...

Page 16: ...h high protection level for use in potentially explosive gas at mospheres in which no risk of ignition exists during normal operation with foreseea ble faults malfunctions EPL Gc Equipment with extend...

Page 17: ...to be guaranteed Measures safety equipment Speci fica tion We recom mend Oil pres sure Monitoring of oil pressure with oil pressure switch optional Falling below the switch point will cause a malfunct...

Page 18: ...ed pressure With installation on the exhaust side there is a risk of the exhaust pressure of the vacuum pump ex ceeding the atmospheric conditions The ignition temperature of the medium to be pumped i...

Page 19: ...t pressures greater than atmospheric pressure using pipes to lift the vacuum pump using accessories or spare parts not listed in this manual using the vacuum pump as a climbing aid painting the vacuum...

Page 20: ...th safety technology standards Trained individuals Only adequately trained individuals may carry out all works in other transport storage operation and disposal fields Such training must ensure that i...

Page 21: ...h chamber changes periodically as the rotor rotates This provides suction of the gas at the vacuum flange whereby the gas is then compressed in the suction chamber via rotation of the rotor and discha...

Page 22: ...he required gas vapor mixture is compacted within certain limits and discharged Operating fluid oil The pump oil also known as operating fluid fulfills various tasks in a rotary vane pump lubrication...

Page 23: ...r falling objects There is a risk of injuries to limbs up to and including bone fractures and head injuries Secure the danger zone if necessary Pay attention to the center of gravity of the load durin...

Page 24: ...allation as required Keep the eye bolts for future use 4 2 Storing the vacuum pump Storage Pfeiffer Vacuum recommends storing the products in their original transport packaging Procedure 1 Fill the va...

Page 25: ...ply 2 Screw the base plate of the vacuum pump to the mounting surface if necessary 3 When installing the pump in a closed housing ensure adequate air circulation 4 Keep the sight glass and gas ballast...

Page 26: ...with the vacuum pump Process me dia are often toxic combustible potentially explosive and or reactive in other ways There is a risk of serious or even fatal injuries if these media are permitted to l...

Page 27: ...one sieve and the O ring are fitted in the exhaust flange 3 Choose a minimum exhaust line cross section equal to the nominal diameter of the connection flange 4 Metal hoses with flange connections mus...

Page 28: ...rates an electric shock Incorrect connection of the mains supply leads to the risk of live housing parts that can be touched There is a risk to life Before the installation check that the connection l...

Page 29: ...he operating instructions of the respective motor 5 5 2 Connect three phase motor with 6 pin terminal board NOTICE Property damage from high starting torque The specific load behavior of the vacuum pu...

Page 30: ...Motor voltage V Frequency Hz Motor rating kW IN A Imax A 230 50 0 25 1 28 4 3 400 50 0 25 0 74 2 5 265 60 0 30 1 28 4 3 460 60 0 30 0 74 2 5 Tbl 7 Current values for fuse layout 5 5 4 Connecting the...

Page 31: ...he installed RESET button or via the external RESET S3 Switching on mains detected as automatic RESET 5 5 5 Checking the direction of rotation Operating fluid leaks out The direction of rotation must...

Page 32: ...max min 1 2 Fig 12 Filling the operating fluid 1 Filling screw for operating fluid 2 O ring Consumable Operating fluid of the vacuum pump Required tools Allen key WAF 6 mm Torque wrench Filling the op...

Page 33: ...t of high pressure in the exhaust line Faulty or inadequate exhaust pipes lead to dangerous situations e g increased exhaust pressure There is a danger of bursting Injuries caused by flying fragments...

Page 34: ...in the vacuum pump WARNING Risk of injury from reactive potentially explosive or otherwise hazardous gas air mixtures Uncontrolled gas inlet of air or gases containing oxygen may lead to the formation...

Page 35: ...tary vane pump again in order to prevent shearing of the bolts 1 Disconnect the gas ballast valve from the rotary vane pump 2 Unscrew the locking screw on the gas ballast valve 3 Screw in the hose con...

Page 36: ...luid Required tools Allen key WAF 6 mm Calibrated torque wrench tightening factor 2 5 Filling the operating fluid 1 Switch off the vacuum pump 2 Unscrew the operating fluid filler screw 3 Refill with...

Page 37: ...operations Pfeiffer Vacuum rotary vane pumps have an integral vacuum safety valve on the intake side The vac uum safety valve automatically closes from a differential pressure of 250 hPa between the e...

Page 38: ...icient distance to the vacuum flange during all work Safely connect the motor to the mains during installation Safely disconnect the motor from the mains prior to maintenance Secure the motor against...

Page 39: ...out improperly no warranty or liability claims are accepted on the part of Pfeiffer Vacuum This also applies if original spare parts are not used Notes on maintenance intervals Depending on the proces...

Page 40: ...8 Maintenance intervals 7 3 Changing the operating fluid Pfeiffer Vacuum recommends determining the precise service life of the operating fluid in the first operating year The service life may deviat...

Page 41: ...ightening factor 2 5 Determine degree of aging of P3 operating fluid 1 Unscrew the filler screw Be careful with the O ring 2 Use the pipette to extract a sample of the operating fluid from the filling...

Page 42: ...the filler and drain screws back in 8 Switch on the vacuum pump with the vacuum flange open for max 5 seconds 9 Tilt the vacuum pump slightly to completely empty it and drain the remaining operating...

Page 43: ...e the cap from the stand in axial direction Take care with the O ring between cap and stand 4 Collect any leaking operating fluid 5 Dispose of operating fluid according to applicable regulations Clean...

Page 44: ...6 Dismantle the circlip using the circlip pliers 7 Screw the spindle out of the valve housing Be careful with the O rings 8 Clean the parts especially the bores in the valve housing 9 Replace the par...

Page 45: ...or aggressive atmospheres Hermetically seal the vacuum pump together with a drying agent in a plastic bag 11 Please note the vacuum pump may not be stored in the vicinity of machines traffic routes et...

Page 46: ...ponents must be disposed of in accordance with the applica ble regulations relating to environmental protection and human health with a view to reducing natural resource wastage and preventing polluti...

Page 47: ...find information about potential causes and how to fix them here Problem Possible causes Remedy Vacuum pump will not start up No mains voltage or voltage does not corre spond to the motor data Check t...

Page 48: ...bly dimensioned Make sure that connections are short and cross sections adequate ly dimensioned Exhaust pressure too high Check exhaust line outlet opening and exhaust side accessories Loss of operati...

Page 49: ...ity You can find more detailed information and addresses on our homepage in the Pfeiffer Vacuum Service section You can obtain advice on the optimal solution for you from your Pfeiffer Vacuum represen...

Page 50: ...duct in suitable stable transport containers only e Maintain applicable transport conditions ERKL RUNG KONTAMINIERUNG 6 Attach the contamination declaration to the outside of the packag ing 7 Now send...

Page 51: ...e level 3 PK E02 080 T Coupling set PK E06 015 T Tbl 10 Spare parts pack Duo 11 ATEX 12 1 Maintenance kit 1 maintenance level 1 Order no PK E01 050 CT Maintenance kit 1 contains Filler and drain screw...

Page 52: ...The overhaul kit contains all the wear parts of the vacuum pump which must be replaced after the vac uum pump has been dismantled and cleaned Set of seals Wear parts of the pumping system including v...

Page 53: ...mp Operating fluid temperature monitoring The temperature sensor monitors the temperature of the operating fluid 13 2 Ordering accessories Accessories for Duo 11 ATEX Order no OME 16 ATEX Oil Mist Sep...

Page 54: ...e Pressure units mbar l s Pa m3 s sccm Torr l s atm cm3 s mbar l s 1 0 1 59 2 0 75 0 987 Pa m3 s 10 1 592 7 5 9 87 sccm 1 69 10 2 1 69 10 3 1 1 27 10 2 1 67 10 2 Torr l s 1 33 0 133 78 9 1 1 32 atm cm...

Page 55: ...or tolerance at 50 Hz 10 hPa Water vapor tolerance at 60 Hz 11 hPa Emission sound pressure level without gas ballast at 50 Hz 54 dB A Cooling method standard Air Motor version 3 ph motor Input voltage...

Page 56: ...3 438 2 216 5 2 172 5 1 7 2 DN 16 ISO KF 221 1 185 1 145 1 148 1 70 190 33 5 88 95 61 33 5 50 5 Fig 19 Dimension diagram Duo 11 ATEX Technical data and dimensions 56 58...

Page 57: ...the use of certain hazardous substances delegated directive 2015 863 EU Harmonized standards and applied national standards and specifications EN ISO 12100 2011 ISO 80079 37 2016 12 EN 1012 2 2011 12...

Page 58: ...Notizen Notes...

Page 59: ......

Page 60: ...PD0079 E Date 2006 P N PD0079BEN...

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