Name: Pfeiffer Vacuum BA 251
Brand: Pfeiffer Vacuum
Rating: 4 (1 reviews)

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OPERATING INSTRUCTIONS

Translation of the Original

BA 251 | BA 501

Rotary vane pump

Table of Contents3
About this Manual7
Validity7
Applicable Documents7
Variants7
Target Group7
Conventions7
Instructions in the Text7
Pictographs7
Stickers on Product8
Tbl. 1: Stickers on Product8
Abbreviations9
Trademark Proof9
Fig. 1: Position of the Stickers on the Product9
Safety10
General Safety Information10
Safety Instructions10
Safety Precautions14
Limits of Use of Product14
Proper Use15
Foreseeable Improper Use15
Personnel Qualification15
Tbl. 3: Limits of Use of Product15
Ensuring Personnel Qualification16
Personnel Qualification for Maintenance and Repair16
Advanced Training with Pfeiffer Vacuum16
Product Description17
Function17
Actuator17
Gas Ballast17
Fig. 2: Structure of the Rotary Vane Pump17
Cooling Water Controller18
Venting or Measuring Connection18
Operating Fluid, Oil18
Operating Principle18
Fig. 3: Rotary Vane Vacuum Pump Functional Principle18
Product Features19
Identifying the Product19
Scope of Delivery19
Transportation and Storage20
Transporting Vacuum Pump20
Fig. 4: Transporting Vacuum Pump20
Storing Vacuum Pump21
Installation22
Setting up Vacuum Pump22
Connecting Vacuum Side22
Fig. 5: Vacuum Connection with Flange Connection23
Connecting Exhaust Side24
Fig. 6: Exhaust Connection with Flange Connection24
Connecting the Cooling Water Supply25
Tbl. 5: Requirements on the Cooling Water Composition25
Connecting to Mains Power Supply26
Fig. 7: Connecting the Cooling Water Supply26
Connecting Three-Phase Motor with 6-Pin Terminal Board27
Fig. 8: Delta Connection for Low Voltage27
Fig. 9: Star Circuit for High Voltage27
Setting Motor Protection Switch28
Connecting the PTC Thermistor Tripping Unit28
Tbl. 6: Settings for the Motor Protection Switch for BA 25128
Tbl. 7: Settings for the Motor Protection Switch for BA 50128
Checking Direction of Rotation29
Fig. 10: Connection Example with PTC Thermistor Tripping Unit29
Installing Belt Guard30
Removing Belt Guard30
Tensioning V-Belt31
Tbl. 8: Settings for V-Belt Bias31
Fig. 11: Removing Belt Guard31
Fig. 12: Checking V-Belt Bias with Load Hook31
Mounting Belt Guard Temporarily32
Marking Protective Coverings32
Fig. 13: Mounting Belt Guard Temporarily32
Installing Cage Nuts33
Mounting Belt Guard to Base Frame33
Fig. 14: Positions of Protective Coverings Viewed from Inside33
Mounting Protective Coverings to Belt Guard34
Fig. 15: Mounting Belt Guard to Base Frame34
Filling up Operating Fluid35
Fig. 16: Mounting Protective Coverings to Belt Guard35
Operation37
Commissioning Vacuum Pump37
Fig. 17: Cooling Water Controller of the Rotary Vane Pump37
Switching on Vacuum Pump38
Setting Cooling Water Controller39
Fig. 18: Setting Cooling Water Controller39
Operating Rotary Vane Pump with Gas Ballast40
Refilling Operating Fluid40
Fig. 19: Top of Gas Ballast Valve40
Switching off Vacuum Pump41
Maintenance42
Maintenance Instructions42
Checklist for Inspection and Maintenance43
Change the Operating Fluid44
Determining Degree of Aging of P3 Operating Fluid45
Changing Operating Fluid in Operating Fluid Storage Tank46
Rinsing and Cleaning Rotary Vane Pump47
Fig. 20: Flange with Valve and Locking Screw on Operating Fluid Storage Tank47
Changing Operating Fluid in Bearings48
Fig. 21: Oiler and Locking Screw on a Bearing Shield48
Disassembling and Cleaning Gas Ballast Valve49
Fig. 22: Gas Ballast Valve50
Adjusting the Noise Reduction51
Tensioning V-Belt52
Fig. 23: Top of Gas Ballast Valve52
Tbl. 10: Settings for V-Belt Bias53
Fig. 24: Checking V-Belt Bias with Load Hook53
Decommissioning54
Shutting down for Longer Periods54
Recommissioning54
Recycling and Disposal55
General Disposal Information55
Dispose of Rotary Vane Pump55
Malfunctions56
Tbl. 11: Troubleshooting for Rotary Vane Pumps58
Service Solutions by Pfeiffer Vacuum59
Spare Parts61
Ordering Spare Part Packages61
Set of Seals61
Maintenance Kit 1 - Maintenance Level61
Maintenance Kit - RSSR Outside61
Maintenance Kit - RSSR Inside61
Overhaul Kit - Maintenance Level61
Tbl. 12: Spare Part Packages61
V-Belt Kit62
Exhaust Valve Kit62
Set of Vanes62
Cooling Water Controller62
Accessories63
Accessory Information63
Ordering Accessories63
Tbl. 15: Consumables65
Technical Data and Dimensions66
General66
Substances in Contact with the Media66
Tbl. 16: Conversion Table: Pressure Units66
Tbl. 17: Conversion Table: Units for Gas Throughput66
Tbl. 18: Materials that Make Contact with the Process Media66
Technical Data67
Dimensions68
Fig. 25: Dimensions of Unoline Plus BA 25168
Fig. 26: Dimensions of Unoline Plus BA 50169
EC Declaration of Conformity70
Declaration of Conformity71

Brand	Pfeiffer Vacuum
Model	BA 251
Category	Water Pump
Language	English

Pfeiffer Vacuum BA 251 User Manual

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Pfeiffer Vacuum BA 251 Specifications

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