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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

 

Содержание ASME Series

Страница 1: ...rt installation operation and maintenance Subject to change without notice Reproduction is generally permitted with indication of the source Richter Chemie Technik GmbH 9250 050 en Revision 11 Edition...

Страница 2: ...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 Abrasiv...

Страница 3: ...et http www richter ct com Authorised person acc to machinery directive 2006 42 EG Gregor Kleining Designation Single stage plastic lined magnetic drive chemical centrifugal pump series MNKA long life...

Страница 4: ...ws flanges to ASME DN No x size Tightening torque inch ASME Nm in lbs 1 4 x 8 70 1 4 x 15 135 2 4 x S 25 220 3 4 x S 45 400 1 2 Name plate dry running ATEX and housing casing markings The stainless st...

Страница 5: ...e series MNKA ASME are sealless plastic lined magnetic drive centrifugal pumps for the leak free conveyance of aggressive toxic pure and inflammable liquids The pump is equipped with a permanent magne...

Страница 6: ...ring transport and storage of the magnetic drives as single components the notes on safety in Section 7 5 2 must be observed The points listed in Section 6 1 must be followed before recommissioning 2...

Страница 7: ...er 9 3 allows no temperature class or temperature to be indicated The temperature class must be determined by the operated in accordance with Section 2 6 7 Temperature limits 2 6 5 Check of the direct...

Страница 8: ...data sheet The plant customer must ensure that the prescribed operating temperature is observed The maximum admissible temperature of the liquid medium at the pump inlet depends on the temperature cl...

Страница 9: ...as possible Elastomers are to be protected against UV light In general a storage period of 10 years should not be exceeded An admissible storage period of 4 years applies to elastomers made of NBR If...

Страница 10: ...ainment shell chamber is also vented and evacuated through the bores in the plain bearing pedestal 339 Additional information is provided in the brochure and the Product manual 5 Installation 5 1 Safe...

Страница 11: ...sitive suction head must also be observed The NPSHR value required for the pump is specified in the data shee The NPSHR available in the plant should be at least 1 64 ft 0 5 m higher than the NPSHR re...

Страница 12: ...Problems on request 5 7 Drive The power consumption of the pump at the operating design point is specified in the data sheet and works certificate If the operating design point was not known when the...

Страница 13: ...t prevention regulations It must be ensured that the coupling guard used is either made of spark free material or the impact test required by the EN 13463 is satisfied without any reservations Richter...

Страница 14: ...turned by hand Check the direction of rotation of the motor with the coupling disengaged or with a rotary field instrument As viewed from the motor the direction of rotation of the pump is clockwise S...

Страница 15: ...connection with explosion protection potential sources of ignition overheating electrostatic and induced charges mechanical and electric sparks may result from these inadmissible modes of operation t...

Страница 16: ...index approx 85 Kinematic viscosity at 104 F 40 C s 2 mm 40 appr A fully synthetic gear oil to ISO VG 220 is to be used for temperatures below 68 F 20 C Replacing the bearings The ball bearings are de...

Страница 17: ...ta carriers such as credit cards cheque cards ID cards with magnetic strips or magnetic tape 6 150 mm distance 7 6 Dismantling There are 3 possibilities for dismantling 1 Remove the complete pump from...

Страница 18: ...ure that no plain bearing parts fall Silicon carbide is easy to break Use isolated gloves when handling hot bearings Failure to follow this instructions may result in property damage sever personal in...

Страница 19: ...screw 914 1 with tooth lock washer 936 1 Secure thread with a drop of Loctite for example For tightening a hex socket key with 120 mm minimum length is required Screw bearing pedestal 330 lantern 344...

Страница 20: ...ightening the housing casing screws 901 3 make sure that the support bracket 183 is firmly positioned If necessary undo support bracket align and secure again For tightening torques see Section 1 1 7...

Страница 21: ...NPSHR too high Are the pipe resistances too high Is the viscosity too high Is the direction of rotation correct Is the speed too low or the impeller diameter too small Are pump parts worn Gas in the...

Страница 22: ...61 rear bearing cover 400 1 flat gasket 401 housing gasket casing gasket 412 3 O ring 415 1 centering gasket 504 distance ring 509 1 intermediate ring 529 x bearing sleeve 545 x bearing bush 557 2 con...

Страница 23: ...Series MNKA acc to ASME Page 23 9250 050 en Revision 11 TM 7903 Edition 07 2010 9 2 MNKA with long life grease lubrication...

Страница 24: ...Series MNKA acc to ASME Page 24 9250 050 en Revision 11 TM 7903 Edition 07 2010 9 3 MNKA with oil bath lubrication...

Страница 25: ...UMPEN CHEMICAL PROCESS PUMPS POMPE POUR L INDUSTRIE CHIMIQUE Baureihe Series S rie Ausf hrung Magnetkupplungspumpe ASME insatzgrenzen Design Magnet drive pump ASME operating limits Construction Pompe...

Страница 26: ...iled by below mentioned notified body according to directive 94 9 EC Physikalische Technische Bundesanstalt PTB D 38116 Braunschweig Baureihe Series Registrier Nr Registered Baureihe Series Registrier...

Страница 27: ...Interne Fertigungskontrolle Production Quality Assurance Angewandte EN 14121 harmonisierte Normen EN 809 Applied harmonised Standards Kennzeichnung 2006 42 EG Marking Das Unternehmen Richter Chemie T...

Страница 28: ...mination of the pumps valves and component sent in for repair On the basis of this information for the contractor is it possible to meet the necessary preventive action during the execution of the rep...

Страница 29: ...logical 2 and with which cleaning method radioactive 3 1 if no then forward to D other pollutant 2 Aggregates which are contaminated with microbiological or explosive substances are only accepted with...

Страница 30: ...IOSTOFFV the procedures for the prevention of accidents as well as regulations to environmental protection e g the Waste Management Law AbfG and the Water Resources Act WHG An inspection repair of Ric...

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