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Contents
A705-61-880 Issue M
Contents
Section Page
1 Introduction .......................................................................................1
1.1 Scope and definitions ................................................................................................... 1
1.2 The GV pumps ............................................................................................................ 1
1.3 Gas system ................................................................................................................ 3
1.4 Cooling system ........................................................................................................... 3
1.5 Interstage relief valve .................................................................................................. 3
1.6 Drive operation ........................................................................................................... 3
1.7 Liquid pumping capability .............................................................................................. 4
1.8 Safe area operation ..................................................................................................... 4
1.9 Accessories ................................................................................................................ 4
2 Technical data ....................................................................................5
2.1 Operating and storage conditions ..................................................................................... 5
2.2 Performance .............................................................................................................. 5
2.3 Mechanical data .......................................................................................................... 6
2.4 Electrical data (for Edwards supplied motors) ...................................................................... 7
2.5 Cooling system ........................................................................................................... 7
2.6 Lubrication data ......................................................................................................... 8
2.7 Shaft-seals purge system ............................................................................................... 8
2.8 Connections ............................................................................................................... 8
2.9 Noise data ................................................................................................................. 8
3 Installation ....................................................................................... 11
3.1 Safety .....................................................................................................................11
3.2 System design ...........................................................................................................11
3.3 Unpack and inspect .....................................................................................................12
3.4 Locate the pump ........................................................................................................13
3.5 Check the gearbox oil-level ...........................................................................................13
3.6 Electrical connections ..................................................................................................13
3.6.1 Introduction .............................................................................................................13
3.6.2 Connect the electrical supply to the pump-motor ................................................................14
3.6.3 Connect the thermistor outputs ......................................................................................16
3.6.4 Connect to the thermal snap-switches ..............................................................................16
3.7 Check the direction of rotation ......................................................................................17
3.8 Fit a mechanical booster pump (optional) ..........................................................................18
3.9 Connect the cooling-water supply ...................................................................................19
3.10 Connect the shaft-seals purge and gas-ballast gas supplies ......................................................19
3.10.1 Introduction .............................................................................................................19
3.10.2 Connect the shaft-seals purge air or nitrogen supply .............................................................20
3.10.3 Connect a nitrogen gas-ballast supply (optional) ..................................................................20
3.11 Connect the pump-inlet ...............................................................................................21
3.12 Connect the pump outlet ..............................................................................................21
3.13 Leak test the system ...................................................................................................22
3.14 Commission the pump ..................................................................................................22
4 Operation ........................................................................................ 25
4.1 Start the pump ..........................................................................................................25
4.2 Allow the pump to warm up ..........................................................................................25
4.3 Check the purge pressures and flows ................................................................................26
4.4 Shut down the pump ...................................................................................................26
gea/0195/03/12
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