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
6
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
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
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
