Richter MNKA Series (ASME) User Manual download pdf (Page 2)

Series MNKA, acc. to ASME Page 2

9250-050-en Revision 11

TM 7903 Edition 07/2010

List of Contents

List of Contents ........................................ 2

Relevant documents ................................. 3

1 Technical data ...................................... 3

1.1 Tightening torques ....................................... 4

1.2 Name plate, dry-running, ATEX and housing

(casing) markings ........................................ 4



1.3 Spare parts .................................................. 4

2 Notes on safety .................................... 5

2.1 Intended use ................................................ 5

2.2 For the customer/operator ........................... 6

2.3 For maintenance ......................................... 6

2.4 Conversion work and production of spare

parts by the customer .................................. 6



2.5 Inadmissible modes of operation ................ 6

2.6 Special requirements for explosion protection



2.6.1 Filling the unit ................................................... 6

2.6.2 Special operating conditions ............................ 6

2.6.3 Chargeable liquids ........................................... 7

2.6.4 Identification ..................................................... 7

2.6.5 Check of the direction of rotation ..................... 7

2.6.6 Mode of operation of the pump ........................ 7

2.6.7 Temperature limits ........................................... 7

2.6.8 Maintenance ..................................................... 8

2.6.9 Electric peripheral equipment ........................... 8

3 Transport and storage ......................... 9

3.1 Return consignments .................................. 9

3.2 Disposal ....................................................... 9

4 Product description ........................... 10

5 Installation .......................................... 10

5.1 Safety regulations ...................................... 10

5.2 Installation of pump/unit ............................ 10

5.3 Alignment of pump-coupling-motor ........... 10

5.4 Piping......................................................... 11

5.4.1 Nominal size ................................................... 11

5.4.2 Nozzle loads ................................................... 11

5.4.3 Suction line ..................................................... 11

5.4.4 Supply lines .................................................... 11

5.4.5 Discharge line ................................................ 11

5.4.6 Venting and draining ...................................... 12

5.5 Pipe fittings ................................................ 12

5.6 Monitoring facilities .................................... 12

5.7 Drive .......................................................... 12

5.8 Coupling .................................................... 13

5.9 Final check ................................................ 13

5.10Coupling guard .......................................... 13

5.11Electric connection .................................... 13

6 Commissioning/Shutdown ................ 14

6.1 Initial commissioning ................................. 14

6.1.1 Filling the pump housing (casing) .................. 14

6.1.2 Start-up ........................................................... 14

6.2 Operating limits ......................................... 14

6.2.1 Abrasive media............................................... 14

6.2.2 Min./max. flow rate ......................................... 14

6.3 Shutdown .................................................. 15

6.4 Restarting .................................................. 15

6.5 Improper operations and their consequences

(examples) ................................................ 15



7 Maintenance ....................................... 16

7.1 Screw connections of the housing (casing)16

7.2 Bearing pedestal ....................................... 16

7.2.1 Grease for life lubrication ............................... 16

7.2.2 Oil bath lubrication.......................................... 16

7.3 Cleaning .................................................... 16

7.4 Stand-by pumps ........................................ 16

7.5 Notes on dismantling ................................ 17

7.5.1 Protective clothing .......................................... 17

7.5.2 Magnetic fields ............................................... 17

7.6 Dismantling ............................................... 17

7.6.1 Removing the bearing pedestal ..................... 17

7.6.2 Dismantling the bearing pedestal, long life

grease lubrication ........................................... 17



7.6.3 Dismantling the bearing pedestal, oil bath

lubrication ....................................................... 18



7.6.4 Dismantling the slide-in unit ........................... 18

7.7 Notes on assembly ................................... 18

7.8 Assembly ................................................... 19

7.8.1 Assembly of the bearing pedestal, long life

grease lubrication ........................................... 19



7.8.2 Assembly of the bearing pedestal, oil bath

lubrication ....................................................... 19

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7.8.3 Drive magnet assembly .................................. 19

7.8.4 Assembly of can unit ...................................... 19

7.8.5 Perform trial assembly of the plain bearing

pedestal with impeller, inner magnet assembly

and plain bearings ......................................... 19



7.8.6 Checking bearing play Z and impeller

distance X....................................................... 19

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7.8.7 Final assembly ............................................... 20

7.8.8 Fill bearing pedestal with oil ........................... 20

7.9 Tests ......................................................... 20

8 Faults .................................................. 21

9 Sectional drawing .............................. 22

9.1 Legend ...................................................... 22

9.2 MNKA with long life grease lubrication ..... 23

9.3 MNKA with oil bath lubrication ................. 24

1 2 3 4 5 6 7 ... 29 30

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Richter MNKA Series (ASME) User Manual Page 2

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