Owner's manual

Installation and Operating Manual
Series MNKA-B, acc. to ASME/ANSI
9250-055-en Revision 01
TM 5976 MPE/Wm Page 2 Edition 10/2004
List of Contents
1 Technical data....................................... 3
1.1 Intended use............................................... 4
1.2 Tightening torques...................................... 4
1.3 Name plate, dry-running, CE and housing
(casing) markings ....................................... 4
2 Notes on safety..................................... 5
2.1 For the customer/operator.......................... 6
2.2 For maintenance ........................................ 6
2.3 Conversion work and production of spare
parts by the customer................................. 6
2.4 Inadmissible modes of operation ............... 6
2.5 Explosion protection ................................... 6
2.5.1 .. Filling the unit .......................................................6
2.5.2 .. Special operating conditions .................................6
2.5.3 .. Chargeable liquids................................................7
2.5.4 .. Identification .........................................................7
2.5.5 .. Check of the direction of rotation ..........................7
2.5.6 .. Mode of operation of the pump.............................7
2.5.7 .. Temperature limits................................................7
2.5.8 .. Maintenance.........................................................8
2.5.9 .. Electric peripheral equipment ...............................8
3 Transport and storage.......................... 8
3.1 Return consignments ................................. 9
4 Product description.............................. 9
5 Installation............................................. 9
5.1 Safety regulations....................................... 9
5.2 Installation of pump/unit ............................. 9
5.3 Alignment of pump-coupling-motor ............ 9
5.4 Piping ....................................................... 10
5.4.1 .. Nominal size.......................................................10
5.4.2 .. Nozzle loads.......................................................10
5.4.3 .. Suction line.........................................................10
5.4.4 .. Supply lines ........................................................10
5.4.5 .. Discharge line.....................................................10
5.4.6 .. Venting and draining...........................................10
5.5 Pipe fittings ............................................... 11
5.6 Monitoring facilities................................... 11
5.7 Drive ......................................................... 11
5.8 Electric connection ................................... 11
6 Commissioning/Shutdown ................ 12
6.1 Initial commissioning................................ 12
6.1.1... Filling the pump housing (casing)....................... 12
6.1.2... Start-up.............................................................. 12
6.2 Operating limits ........................................ 12
6.2.1... Abrasive media.................................................. 12
6.2.2... Min./max. flow rate............................................. 12
6.3 Shutdown ................................................. 12
6.4 Restarting................................................. 13
6.5 Inadmissible modes of operations and their
consequences (examples) ....................... 13
7 Maintenance........................................ 13
7.1 Screw connections of the housing (casing)13
7.2 Motor ........................................................ 13
7.3 Cleaning ................................................... 13
7.4 Stand-by pumps....................................... 14
7.5 Notes on dismantling ............................... 14
7.5.1... Protective clothing ............................................. 14
7.5.2... Magnetic fields................................................... 14
7.6 Dismantling .............................................. 14
7.6.1... Removing the bearing pedestal ......................... 14
7.6.2... Dismantling adapter and motor.......................... 14
7.6.3... Dismantling the slide-in unit ............................... 15
7.7 Notes on assembly .................................. 15
7.8 Assembly.................................................. 15
7.8.1... Assembly of adapter and motor ......................... 15
7.8.2... Drive magnet assembly ..................................... 15
7.8.3... Assembly of slide-in unit .................................... 16
7.8.4... Perform trial assembly of the plain bearing pedestal
with impeller, inner magnet assembly and plain
bearings............................................................. 16
7.8.5... Checking bearing play Z and impeller distance X16
7.8.6... Final assembly................................................... 16
7.9 Tests ........................................................ 16
8 Faults ................................................... 17
9 Sectional drawing............................... 18
9.1 MNKA-B close-coupled design ................ 18