Johnson Pump TG GS2-25 - Default Chapter; Table of Contents

3
A.0500.501 – IM-TGGS/05.01 EN (03/2013)
Contents
1.0 Introduction ........................................................................................................ 7
1.1 General ..................................................................................................................7
1.2 Reception, handling and storage ....................................................................7
1.2.1 Reception ........................................................................................................... 7
1.2.2 Handling .............................................................................................................. 7
1.2.3 Storage ............................................................................................................... 7
1.3 Safety .....................................................................................................................8
1.3.1 General ............................................................................................................... 8
1.3.2 Pump units ......................................................................................................... 9
1.3.2.1 Pump unit handling .......................................................................................9
1.3.2.2 Installation ....................................................................................................... 9
1.3.2.3 Before commissioning the pump unit ....................................................10
1.3.2.4 Disassembly/assembly of the coupling guard ..................................... 10
1.3.2.5 Name plate – CE Declaration of Conformity ....................................... 10
1.4 Technical conventions ..................................................................................... 11
2.0 Pump description ...........................................................................................12
2.1 Type designation ..............................................................................................12
3.0 General technical information ...................................................................... 14
3.1 Pump standard parts ....................................................................................... 14
3.2 Operating principle ..........................................................................................14
3.2.1 Self-priming operation ...................................................................................15
3.2.2 Safety relief valve – Working principle ......................................................15
3.3 Sound .................................................................................................................15
3.4 General performance ......................................................................................15
3.5 Main characteristics .......................................................................................16
3.6 Pressure .............................................................................................................17
3.7 Sound level .......................................................................................................17
3.7.1 Sound level of a pump without drive .......................................................... 17
3.7.2 The sound level of the pump unit ................................................................18
3.7.3 Influences .........................................................................................................18
3.8 Maximum temperature .....................................................................................18
3.9 Jacket options ...................................................................................................18
3.10 Internals .............................................................................................................. 19
3.10.1 Bush materials ................................................................................................. 19
3.10.2 Maximum temperature of internals .............................................................. 19
3.10.3 Operation under hydrodynamic lubrication conditions ..........................19
3.10.4 Maximum torque of pump shaft and rotor material combination ..........20
3.11 Mass moment of inertia...................................................................................20
3.12 Axial and radial clearances.............................................................................20
3.13 Extra clearances ...............................................................................................21
3.14 Play between gear teeth .................................................................................22
3.15 Maximum size of solid particles ....................................................................22
3.16 Shaft sealing ....................................................................................................22