Pfeiffer Vacuum DuoLine DUO 20 M Operating Instructions Manual
Rotary vane pump
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Summary of Contents for Pfeiffer Vacuum DuoLine DUO 20 M
- Page 1 OPERATING INSTRUCTIONS Translation of the original instructions DUO 20 M, DUO 20 MC Rotary Vane Pump...
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Page 2: Table Of Contents
Table of contents Table of contents About this manual ..........3 1.1 Validity. -
Page 3: About This Manual
About this manual Validity This operating manual is for customers of Pfeiffer Vacuum. It describes the functioning of the designated product and provides the most important information for safe use of the unit. The description follows applicable EU guidelines. All information provided in this operating manual refers to the current state of the product's development. - Page 4 About this manual Pictographs Prohibition of an action to avoid any risk of accidents, the disregarding of which may result in serious accidents Warning of a displayed source of danger in connection with operation of the unit or equipment Command to perform an action or task associated with a source of dan- ger, the disregarding of which may result in serious accidents Important information about the product or this document Instructions in the...
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Page 5: Safety
Installation and operation of accessories Pfeiffer Vacuum pumps can be equipped with a series of adapted accessories. The in- stallation, operation and maintenance of connected devices are described in detail in the operating instructions of the individual components. -
Page 6: Proper Use
● use of the vacuum pump to generate pressure ● pumping of liquids ● the use of operating fluids not specified by Pfeiffer Vacuum ● connection to pumps or units which are not suitable for this purpose according to their operating instructions ●... -
Page 7: Transport And Storage
Transport and storage Transport and storage Transport Transport instructions Remove the locking cap from the vacuum and exhaust flange immediately before con- necting! – Check the protective strainer, paying attention to the O-ring. Use only the handle or the crane eye on the top side of the pump to lift the pump. –... -
Page 8: Product Description
Product description Product description Product identification To correctly identify the product when communicating with Pfeiffer Vacuum, always have the information from the rating plate available and use it: ● Pump model and model number ● Serial number ● Type and amount of operating fluid ●... -
Page 9: Function
Product description Function ™ The vacuum pumps of the DuoLine are dual stage rotary vane pumps and are used primarily for rough and medium vacuum applications. The pumps are fitted with a hy- draulically controlled vacuum safety valve which, when the pump is at a stillstand, closes the vacuum chamber vacuum tight and at the same time vents the pump. -
Page 10: Installation
Installation Installation Setting up the pump Installation location Observe the following requirements when setting up the pump: ● Consider the load-bearing capacity of the installation site. ● Maximum installation altitude 2000 m (above mean sea level) ● Permissible ambient temperature: +12 ... 40 °C ●... -
Page 11: Connecting The Exhaust Side
Installation Connecting the exhaust side CAUTION High pressure in the exhaust line! Danger of damage to the seals and danger of the pump bursting. Observe the maximum permissible pressure of 1500 hPa (absolute), activate shut- off valves in such a way that they open before or at the same time as the pump is started. - Page 12 Installation NOTICE Excess voltage! Danger of destroying the motor. Power connections must comply with local regulations. Voltage and frequency infor- mation given on the motor rating plate must correspond to the mains voltage and fre- quency values. To protect the motor and supply cable in case of malfunction, mains fuse protection must be implemented.
- Page 13 Installation Rocker switch in the terminal box for changing the voltage range Switch position: Voltage range: 200 ... 230 V/50 Hz 100 ... 110 V/50 Hz 200 ... 240 V/60 Hz 100 ... 120 V/60 Hz Fuse protection The transmission power of the pump’s magnetic coupling is so great that the cou- pling is no overload protection for the motor.
- Page 14 Installation W2 U2 U1 V1 Fig. 7: Motor coil and connecting plate of Star Connection (for high voltage) NOTICE Do not start with star/delta connection. Always start motor directly. Inspection of the direction of rotation For pumps with three-phase motors, it is necessary to check the direction of rotation! CAUTION Operating fluids may leak out! If the direction of rotation is incorrect, there is a danger that operating fluids may leak at...
- Page 15 Installation Control voltage OFF button ON button RESET button, external Contactor F1 - F3 F1 ... F4 Fuses T1... T3 PTC resistor sensor Tripping indicator Motor, 3-phase Only for devices with two relay outputs AC 220 ... 240 V Only for MSR type Only for order no.: P 4768 052 FQ T1...T3...
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Page 16: Filling Up The Operating Fluid
NOTICE Use approved operating fluids only! The use of operating fluids that have not been approved by Pfeiffer Vacuum shall result in a limited warranty. In such cases, it is not possible to guarantee that product-specific performance data will be achieved. -
Page 17: Operations Monitoring (Option)
Installation Operations monitoring (Option) For operations monitoring a pressure switch can be installed on the side of the support. In case of a malfunction, e. g. pressure drop or when the pump is at rest, the contact of the pressure switch opens. The signal can be used to control external valves. Switching voltage: 5 ... -
Page 18: Operation
Operation Operation Before switching on the pump Check the operating fluid level in the sight glass. Compare the voltage and frequency information on the rating plate with the mains volt- age and frequency values. Check that the exhaust connection allows free flow (max. permissible pressure 1500 hPa absolute). -
Page 19: Pumping Condensable Vapours
Operation Pumping condensable vapours Should the process gases contain condensable gases, the rotary vane pump must be operated with gas ballast (i.e. with an open gas ballast valve). NOTICE Bad final vacuum and damage to the pump! Danger of condensation and corrosion due to exceeding the water vapour compatibility during operation without gas ballast or in case of insufficient supply of flushing gas. -
Page 20: Topping Up The Operating Fluid
Operation NOTICE Flushing gas pressure higher than allowed endangers the operational reliability of the pump. The power input of the pump, the temperature and the ejection of operating fluid will in- crease. Observe the maximum permissible flushing gas pressure. ... -
Page 21: Switching Off The Pump
Operation Switching off the pump The pump can be switched off in any pressure range. Rotary vane pumps have an integrated safety valve on the intake side. If the differential pressure between the exhaust side and the intake side is 250 hPa, then the valve clos- es automatically and vents the pump when the pump is switched off. -
Page 22: Maintenance
Maintenance Maintenance Precautions DANGER Strong magnetic field in the vicinity of the drive system! Danger to life for persons with cardiac pacemakers when the drive system is disassem- bled. Persons with cardiac pacemakers must not enter the area (≤ 2m) of the magnetic field. - Page 23 Checklist for inspec- Certain maintenance and overhaul work should only be performed by Pfeiffer Vacuum Service (PV). Pfeiffer Vacuum will be released from all warranty and liability claims if the tion, maintenance required, below listed, intervals are exceeded or maintenance or overhaul procedures and overhaul are not performed properly.
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Page 24: Changing The Operating Fluid
Depending on the applications, Pfeiffer Vacuum recommends determining the ex- act service life of the operating fluid during the first year of operation. The replacement interval may vary from the guide value specified by Pfeiffer Vacuum depending on the thermal and chemical loads, and the accumulation of suspended par- ticles and condensation in the operating fluid. - Page 25 Maintenance 198a Fig. 14: Draining the operating fluid Screw in operating fluid drain screw 198a; pay attention to O-ring. Screw in operating fluid filler screw 198; pay attention to O-ring 306. Allow pump to run for a maximum of 5 seconds with the vacuum flange open. ...
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Page 26: Changing The Kind Of Operating Fluid
Maintenance Changing the kind of operating fluid When filling up, topping up or changing the operating fluid, always use the type of oper- ating fluid indicated on the pump type plate. If, for example, amended process conditions require the use of a different operating fluid, the fluid can be changed as follows: NOTICE Changing the type of operating fluid. -
Page 27: Cleaning The Gas Ballast Valve
Maintenance Cleaning the gas ballast valve Gas ballast valve, The gas ballast valve 42 will only be contaminated when airborne dust is in the intake air. standard version Dismantling Fig. 15: Gas ballast valve Valve housing Cam plate 213 Cylinder text Valve tappet Plate spring 214 Circlip... - Page 28 Maintenance Dismantling Carry out preliminary work as described before. Remove the gas ballast valve housing 42 from the cap; note o-ring 148. Unscrew silencer nozzle 44 with o-ring 138, clean or replace as necessary. Assembly Assembling is carried out in reverse order. ...
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Page 29: Decommissioning
Replace the operating fluid. Replace the elastomer parts, with reference to DIN 7716 and the manufacturer's specifications. Follow the maintenance instructions and inform Pfeiffer Vacuum. Disposal Products or parts thereof (mechanical and electrical components, operating fluids, etc.) may cause environmental burden. -
Page 30: Malfunctions
Malfunctions Malfunctions Please note the following instructions should the pump malfunction: CAUTION Hot surface! Danger of burns if hot parts are touched. The surface temperature of the pump may rise above 105 °C in case of malfunction. Carry out work on the pump only after it has cooled to a safe temperature. NOTICE Motor overload! Depending on the malfunction (e.g. -
Page 31: Rectifying Malfunctions
NOTICE Service work should be carried out by a qualified person only! Pfeiffer Vacuum is not liable for any damage to the pump resulting from work carried out improperly. Take advantage of our service training programs; additional information at www.pfei- ffer-vacuum.com. -
Page 32: Service
The following steps are necessary to ensure a fast, smooth servicing process: Download the forms "Service Request" and "Declaration on Contamination". Fill out the "Service Request" form and send it by fax or e-mail to your Pfeiffer Vacuum service address. -
Page 33: Spare Parts
The spare parts packages listed here are only applicable for standard models. Please state all information on the rating plate when ordering spare parts. Other spare parts than those described in this manual must not be used without the agreement of Pfeiffer Vacuum. Spare parts Pump type Revision in- Article no. - Page 34 Spare parts Rotor Hydraulic pump Pump cylinder Support plate Bearing cover 208/ Vanes, rough stage Vanes, medium stage Hydraulic vane Compression spring, vanes 110 113 Magnetic coupling, drive side Magnetic coupling, pump side Washer Intermediate flange for motor Housing, vacuum safety valve Valve plate, vacuum safety valve...
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Page 35: Accessories
Accessories 12 Accessories Further detailed accessories are contained in the Pfeiffer Vacuum printed or Online Cat- alogue. Designation Duo 20 M SAS 25, dust separator, DN 25 ISO-KF, polyester filter PK Z60 508 KAS 25 L, condensate separator for pumping speeds up to 35 m... -
Page 36: Technical Data And Dimensions
Technical data and dimensions 13 Technical data and dimensions 13.1 General ● Recommendations of PNEUROP committee PN5 ● ISO 21360; 2007: "Vacuum technology - Standard methods for measuring vacuum- pump performance - General description" Conversion table: pressure units mbar Torr mm Hg mbar 1 ·... -
Page 37: Technical Data
Technical data and dimensions 13.2 Technical data Parameter Duo 20 M Duo 20 MC Flange (in) DN 25 ISO-KF DN 25 ISO-KF Flange (out) DN 25 ISO-KF DN 25 ISO-KF Pumping speed at 50 Hz 20 m 20 m Pumping speed at 60 Hz 24 m 24 m Ultimate pressure with gas ballast... -
Page 38: Dimensions
Technical data and dimensions 13.3 Dimensions 76.5 DN 25 ISO-KF 77.5 99.5 7 (4x) Ø 113.5 112...140 ( Ø ±1 Fig. 17: DUO 20 M Pump with three phase motor Pump with single phase motor 545 mm 551 mm 212 mm 262 mm... -
Page 39: Declaration Of Conformity
● Electromagnetic Compatibility 2014/30/EU ● Restriction of the use of certain Hazardous Substances 2011/65/EU The agent responsible for compiling the technical documentation is Mr. Sebastian Ober- beck, Pfeiffer Vacuum GmbH, Berliner Straße 43, 35614 Aßlar. ™ DuoLine DUO 20 M/MC... - Page 40 VACUUM SOLUTIONS FROM A SINGLE SOURCE Pfeiffer Vacuum stands for innovative and custom vacuum solutions worldwide, technological perfection, competent advice and reliable service. COMPLETE RANGE OF PRODUCTS From a single component to complex systems: We are the only supplier of vacuum technology that provides a complete product portfolio.
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