LRP200000228 Issue A 5
Table of contents
1 Introduction ......................................................................................................................................................... 7
1.1 Scope and definitions ............................................................................................................................................. 7
1.2 The liquid ring pump ............................................................................................................................................... 7
1.3 Applications ............................................................................................................................................................ 8
2 Technical Data ..................................................................................................................................................... 9
2.1 Operating and storage conditions .......................................................................................................................... 9
2.2 Mechanical data ..................................................................................................................................................... 9
2.3 Performance ........................................................................................................................................................... 9
2.4 Noise and vibration data ...................................................................................................................................... 11
2.5 Sealing liquid supply ............................................................................................................................................ 11
2.6 Materials of construction ...................................................................................................................................... 13
3 Installation ......................................................................................................................................................... 14
3.1 Installation requirements ...................................................................................................................................... 14
3.2 Safety ................................................................................................................................................................... 14
3.3 Pumping system design ....................................................................................................................................... 15
3.4 Sealing liquid system design ................................................................................................................................ 15
3.5 Unpack and inspect .............................................................................................................................................. 18
3.6 Locate the pump .................................................................................................................................................. 18
3.7 Fit the motor or drive/transmission ....................................................................................................................... 18
3.8 Connect the sealing liquid pipelines ..................................................................................................................... 20
3.9 Connect the pump inlet and outlet ....................................................................................................................... 20
3.10 Connect the electrical supply to the motor ........................................................................................................... 21
3.11 Check the direction of pump rotation ................................................................................................................... 21
3.12 Check the leak tightness of the system ............................................................................................................... 22
4 Operation ........................................................................................................................................................... 23
4.1 General operation safety ...................................................................................................................................... 23
4.2 Start-up................................................................................................................................................................. 23
4.3 Cavitation and fluid hammer ................................................................................................................................ 24
4.4 Shut down ............................................................................................................................................................ 25
5 Maintenance ...................................................................................................................................................... 26
5.1 Safety information ................................................................................................................................................ 26
5.2 Maintenance plan ................................................................................................................................................. 26
5.3 Check pipelines and connections ........................................................................................................................ 27
5.4 Internally inspect/overhaul the pump ................................................................................................................... 27
5.5 Fault finding .......................................................................................................................................................... 28
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