Pfeiffer Vacuum BA 251 Operating Instructions Manual
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Pfeiffer Vacuum BA 251 Operating Instructions Manual

Rotary vane pump
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OPERATING INSTRUCTIONS
EN
BA 251/501
Rotary Vane Pump

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Summary of Contents for Pfeiffer Vacuum BA 251

  • Page 1 OPERATING INSTRUCTIONS BA 251/501 Rotary Vane Pump...

  • Page 2: Table Of Contents

    Table of contents Table of contents About this manual ..........4 1.1 Validity.
  • Page 3 Table of contents 11.2 Drawings ..........41 Accessories .

  • Page 4: 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 5 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...

  • Page 6: 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 7: 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 8: Transport And Storage

    Transport and storage Transport and storage Transport  Remove the locking cap from the vacuum and exhaust flange immediately before con- necting! – Check the cone strainer, paying attention to the O-ring.  Use only the eye bolt on the top side of the pump to lift the pump. Fig.

  • Page 9: 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. ● Pump model and model number ● Serial number ● Type and amount of operating fluid ●...

  • Page 10: Function

    This system provides the pumps with a very large supply of operating fluid (BA 251 approx. 17 l, BA 501 approx. 45 l). The spring loaded pump valves are of wear-resistant stainless steel. The pump is "V" belt driven.

  • Page 11: 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 12: Connecting The Cooling Water

    Installation WARNING Emission of toxic substances from the exhaust! Danger of poisoning from emitted gases or vapours, which can be detrimental to health and/or can pollute the environment, depending on the particular application.  Comply with the applicable regulations when working with toxic substances. ...
  • Page 13 Installation Shut-off valve Pressure monitor Reducing nipple G 3/8 ... 1/2" Dirt trap G 1/2" Nipple G 1/2" Tee G 1/2" Cooling water controller, (inlet) 41.1 Cooling water connection, out- G 1/ 2” Cooling water drain 41. 1 PK 133 100-T Fig.

  • Page 14: Connecting To The Mains Power Supply

    Installation Connecting to the mains power supply The pumps are supplied with three phase motors for different voltages and frequencies. The applicable motor type is shown on its rating plate. The drive motor belt pulley has different diameters for 50 Hz and 60 Hz. If the pumps are delivered without a motor, permissible pumping rotation speeds are to be taken into account when selecting the motor (see Technical Data).
  • Page 15 Installation W2 U2 U1 V1 L1 L2 Fig. 6: Motor coil and connecting plate of Star Connection (for high voltage) NOTICE Do not start with star/delta connection.  Always start motor directly. Checking the direction of rotation The direction of rotation must be checked on pumps with three-phase motors! The direc- tion of rotation is marked on the pump housing by an arrow.
  • Page 16 60034-1 it is permissible to exceed the rated current I 1.5 times for a period of 2 min- utes. The setting must permit the overload ability of the motor and can be found in the following table. BA 251 Voltage [V] Frequency Motor rating [kW] [Hz] 34.3...
  • Page 17 Installation Pressure monitor Motor protection switch Fig. 8: Connection with cooling water pressure monitor...

  • Page 18: 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 19: Operating Fluid Level Monitoring (Option)

    Installation ● Operating fluid feedback for returning operating fluid from the oil mist filter and oil feedback unit Operating fluid level monitoring (option) A level switch 83.2, which is installed at the pump dome 6 (oil sump) is used for monitor- ing the operating fluid level.
  • Page 20 Installation Make sure the operating fluid level monitoring is functioning properly! Varying operating conditions such as change in temperature impact the proper function- ing of the operating fluid level monitoring.  The pump has to be running.  Create reproducible operating conditions; e.g. measure ultimate pressure or intake pressure ...

  • Page 21: Operating Fluid Temperature Monitoring (Option)

    Installation Operating fluid temperature monitoring (option) A resistance thermometer 34.1, which is installed at the pump dome (oil sump) is used for monitoring the operating fluid temperatur. 34.1 Fig. 11: Install the temperature sensor Parameter Resistance thermometer Protection category IP 65 Method of measurement PT 100 Temperature range...

  • Page 22: Operation

    Operation Operation Before switching on  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). – Activate the shut-off valves in such a way that they open before or at the same time as the pump is started.

  • Page 23: Switching On The Pump

    41 is factory-set. If other temperatures are required, the pump temperature can be changed by turning setting disk 1. The respective settings, as well as the maximum temperature, must only be made after consulting with Pfeiffer Vacuum.

  • Page 24: Pumping Condensable Vapours

    Operation Setting disk Setting scale Arrow for temperature setting cooling water controller 123 Vent screw °F °C Fig. 12: Cooling water controller 41  With a screw driver set setting disk 1 of the cooling water controller to the desired op- erating temperature.
  • Page 25 Operation Gas ballast valve If valve nut 103 of gas ballast valve 5 is turned counterclockwise until it stops, the valve is opened. If the lock nut is turned clockwise until it stops, the valve closes. An interme- standard version diate position is not possible.
  • Page 26 Operation Checking the adjustments 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 of 1500 hPa (absolute). ...

  • Page 27: Topping Up The Operating Fluid

    Operation Topping up the operating fluid If the operating fluid has reached its minimum filling level, the operating fluid must be topped up. The fluid can be topped up during operation in the final vacuum. Filling up the operat-  Unscrew operating fluid filler screw 91. ing fluid ...

  • Page 28: Maintenance

    Maintenance Maintenance Precautions WARNING Danger of injury from moving parts! After power failure or motor shutdown due to overheating, the motor may restart auto- matically.  Secure the motor so that it cannot be switched on while any work is being performed on the pump.

  • Page 29: Changing The Operating Fluid

    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.
  • Page 30  Fill up with operating fluid and check the filling level (see p. 18, chap. 5.6). Request safety data sheets for operating fluids and lubricants from Pfeiffer Vacuum or download at www.pfeiffer-vacuum.com.  Dispose of operating fluid according to the local regulations.

  • Page 31: 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 32: Clean The Cooling Water Chambers

    Maintenance Clean the cooling water chambers Contamination and calcium deposits can affect the pump's cooling water circuit and bring about an elevated operating temperature. This can be avoided, depending on the cooling water quality, by cleaning the cooling water chambers at regular intervals. ...
  • Page 33 The use of levers, screwdrivers etc. to force fit is not permitted.  Do not use belt wax or spray. Setting the V-belt bias Fig. 18: Setting the belt bias Setting values for correct BA 251 BA 501 V-belt bias 50/60 Hz 50/60 Hz...

  • Page 34: Cleaning The Gas Ballast Valve

    Maintenance Cleaning the gas ballast valve Gas ballast valve 5 is only exposed to contamination if dusty air is sucked in. 100 Needle valve 101 Locking nut 102 Self-locking nut 103 Valve nut 104 Valve housing 107/108 105 Intermediate piece 106 Clamping block 107 Washer 108 Washer...

  • Page 35: Set/Adjust The Silencer

    Maintenance Set/adjust the silencer If the silencer is not functioning, a knocking noise becomes audible at final vacuum. This does not damage the pump, although can have a negative affect at the installation loca- tion. The silencer is set using a standard screwdriver when the pump is running at operating temperature and vacuum flange and gas ballast valve are closed.

  • Page 36: Decommissioning

    With reference to DIN 7716 and the manufacturer's specifications we recommend replacing the installed elastomer parts after 2 years. After this time the bearings should also be replaced; contact Pfeiffer Vacuum Service.  If drying pearls were inserted then they should be removed now. Improper handling can cause failure of the pump.

  • Page 37: Malfunctions

    Defective motor cut-off switch Re-set or replace switch. (building side) Dirty pump system Clean pump; notify Pfeiffer Vacuum service department, if necessary. Damaged pump system Clean and overhaul pump; notify Pfeiffer Vacuum service department, if necessary.
  • Page 38 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 39: 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 40: Spare Parts

    Cooling water nancekit controller PK C42 602 BA 251 / 50 Hz PK E40 001 -T PK E41 001 -T PK E42 002 -T PK E45 002 -T PK E48 001 -T PK 081 950 -T PK C42 637 BA 251 / 60 Hz...

  • Page 41: Drawings

    Spare parts 11.2 Drawings...
  • Page 42 Spare parts Condensate separator with operating fluid re- Guide pin (only for BA 501) turn unit Cylinder roller bearing Screw Cover Oiler Locking screw with sealing ring Rotor Sight glass Pressure piece Intake pipe Cooling water controller Pressure ring Gas ballast valve Double nipple Screw-in sleeve Pump dome...

  • Page 43: Accessories

    PK 133 863 -T SAS 100 dust separator, DN 100 ISO-K, polyester filter PK Z60 512 Magnetic gas ballast valve 230 V-50/60 Hz PK V52 001 Further detailed accessories are contained in the Pfeiffer Vacuum printed or Online Cat- alogue.

  • Page 44: 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 45: Technical Data

    Technical data and dimensions 13.2 Technical data Parameter BA 251 BA 501 Flange (in) DN 63 ISO-F DN 100 ISO-F Flange (out) DN 63 ISO-K DN 100 ISO-K Pumping speed at 50 Hz 250 m 500 m Pumping speed at 60 Hz...

  • Page 46: Dimensions

    Technical data and dimensions 13.3 Dimensions DN 63 ISO -F DN 63 ISO-K DN 10 KF 1030 1528 ø18 (6x) Fig. 20: BA 251...
  • Page 47 Technical data and dimensions DN 100 ISO-F DN 100 ISO-K DN 10 KF 1260 1907 1204 ø18 (6x) Fig. 21: BA 501...
  • Page 48 Technical data and dimensions Frame with vibration isolators A-A 1 : 5 (1374,5) 1150,5 217 (237) (1337,5) BA 251 (BA 501) 1113,5...

  • Page 49: 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. UnoLine™ Plus BA 251/501 Harmonised standards and national standards and specifications which have been ap-...
  • Page 50 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.

This manual is also suitable for:

Ba 501

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