background image

Series MNKA, 

acc. to ASME

 

Page 20

 

9250-050-en 

Revision  11 

TM 7903

 

Edition   07/2010 

7.8.7  Final assembly  

Dismantle  trial  assembly  for  determining  the  bearing 
play again and perform the final assembly. 

With the O-ring 

412/3

 

With the distance ring 

504

 

With  1  drop  of  adhesive  on  the  shaft  thread,  e.g. 
Loctite 243 from Loctite or an equivalent. 

Only  one  drop  of  the  adhesive  is  to  be  applied  per 
thread.  
Otherwise the next dismantling operation will be more 
difficult  or  no  longer  possible  without  destroying 
components. 

Install plain bearing pedestal 

339

 and tighten hex. 

screws 

901/5

.

Strong  axial  forces  are  again  produced  when 
the  completely  assembled  plain  bearing 
pedestal is inserted into the lantern. 

Push  the  entire  slide-in  unit  with  housing  (casing) 
gasket 

401

  into  the  housing  (casing) 

100

  and 

screw together with hex. screws 

901/3

.

When  tightening  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

.

7.8.8  Fill bearing pedestal with oil 

Oil quantities:

For group 1 

appr. 17 oz (500 ml) 

For group 2 

appr. 50 oz (1460 ml) 

Groups see 

Section 1

.

Type of oil:

See 

Section 7.2.2

.

Procedure for filling with oil:

Tilt constant level oiler 

638/1

.

Fill the oiler with oil. 
Swing  the  constant  level  oiler  into  the  vertical 
position. 
If the oil level still falls too much, pour more oil into 
the oiler.

 

Fig. 6

7.9  Tests 

The  pumps  are  tested  with  water  at  the 
manufacturer's. 
The  operating  data  measured  are  documented  in  a 

works certificate

.

If, during a test after repairs, discrepancies compared 
with the works certificate are discovered, the following 
people can be called in: 
1.  in-house pump office 
2.  The manufacturer Richter 
 

or its local agent 

The  following  conveying  data  can  be  checked  using 
the 

pump performance curves

:

Flow rate 
Head 
Power requirement 
NPSHR 

 

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...

Отзывы: