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CAUTION

Pump start-up

When connecting a power supply to the pump, make sure there is no person around

the pump.  The pump has no ON/OFF switch.  The pump starts operation when the

power is supplied by connecting the power supply cable.  

Foreign matter

Should foreign matter enter the pump, turn off the power at once and remove the

obstruction.  Using the pump with foreign matter inside may cause damage to the

pump or a malfunction.

Disposal of used pump

Disposal of used or damaged pumps must be done in accordance with local laws and

regulations. (Consult a licensed industrial waste products disposing company.)

Handling of magnet coupling

The magnet used in the pump has a very high magnetic power.  Be careful not to

allow your fingers to be seized by the magnet or to allow the magnet near any elec-

tronic device which may be affected by the magnet's power.

Suspending pump operation for a prolonged period

When suspending pump operation for a prolonged period, drain the pump and clean

inside the pump.  Take appropriate measures to prevent the entrance of foreign mat-

ter into the pump.  If the pump is not operated for a period longer than one year,

replace the O ring and inspect inside the pump.

Countermeasure for static electricity

When low electric conductivity liquid such as ultra-pure water and fluor inactive

liquid(e.g.Fluorinert

TM

) are handled, the static electricity may be generated in pump,

which may cause static discharge and break down.  Take countermeasure to avoid

and remove static electricity.

- 5 -

Caution

Caution

Safety Section

Summary of Contents for MDF-L series

Page 1: ...Read this manual before use of product IWAKI Magnetic Drive Pump Model MDF L Instruction Manual...

Page 2: ...tual operator for quick reference when needed Contents IMPORTANT INSTRUCTIONS 1 5 Safety Instructions to Prevent Personal Injuries OUTLINE OF PRODUCT 6 14 1 Before Using Pump 7 2 Operating Principle 7...

Page 3: ...and in the attached instruction manual Always Observe These Safety Instructions Safety Instruction to Prevent Personal Injuries Warning Ignoring this message can lead to improper handling resulting i...

Page 4: ...takenly turns on the power supply while some one is working on the pump In a noisy or poor visibity environment display a sign near the power supply switch to notify others that someone is WORKING on...

Page 5: ...that the liquids can not be leaked The operation of the pumps leaking the liquids may result in personal injury and or explosion fire accidents Explosive fire spreading and inflammable liquids Corros...

Page 6: ...ou may experience a serious injury Do not touch the pump When the pump is used to feed a hot liquid do not touch the pump or the piping with your bare hands during and immediately after operation as t...

Page 7: ...very high magnetic power Be careful not to allow your fingers to be seized by the magnet or to allow the magnet near any elec tronic device which may be affected by the magnet s power Suspending pump...

Page 8: ...OUTLINE OF PRODUCT 1 Before Using Pump 7 2 Operating Principle 7 3 Identification Codes 8 4 Specifications and Outer Dimensions 9 5 Names of Parts 11 6...

Page 9: ...t was manufactured e g 5 5 shows the product was manufactured in the year 1995 If you find anything wrong please refer to the dealer you placed your order with 1 Before Using Pump 2 Operating Principl...

Page 10: ...FKM E EPDM A AFLAS FKM AFLAS Fluoro rubber EPDM Ethylene propylene rubber T V W Standard K L For high head applications No mark Standard D E Pin point contacting bearing system Standard models for 250...

Page 11: ...3 200 W 4 8 200 K T V W K L T V W T V W T V W K T V W T V W K T V W T V W 40 40 50 40 50 40 50 40 65 50 80 65 MDF L250 MDF L422 MDF L423 MDF L505 MDF L425 MDF L507 MDF L657 MDF L6510 MDF L6515 20 200...

Page 12: ...5 L e 143 250 275 d 95 111 106 c 51 58 65 b 150 170 180 a 110 130 140 k 4 12 4 14 j 25 40 50 i 25 40 h 88 102 87 g 122 140 f 115 135 155 Model MDF L505 MDF L507 MDF L657 MDF L6510 MDF L6515 W 298 H 34...

Page 13: ...emarks Front casing Rear casing Impeller Drive magnet unit Hex head bolt Hex head bolt Foot support Cover A Cover C Cover B Magnet capsule Motor Cap Q ty Parts name Remarks Model 401 Model 250 JIS B 2...

Page 14: ...Hex socket head bolt Foot support Cover A Cover C Cover B Magnet capsule Motor Cap Q ty Parts name Remarks JIS B 2401 G 165 Material KK E AA E CF D PTFE V FKM E EPDM A AFLAS Steel STNLS STL High densi...

Page 15: ...CF Alumina ceramics 99 5 PTFE V FKM E EPDM A AFLAS Steel STNLS STL High density carbon SiC 1 1 1 1 1 1 2 1 1 Liner ring Rear thrust ring Spindle Bearing Mouth ring O ring Gasket Eye bolt Rear casing c...

Page 16: ...start up 6 in the Pump operation chapter Motor Driving section This motor provides power to the pump unit Base Setting should be fixed Discharge port Suction port Drain port Liquid discharge port Dra...

Page 17: ...PUMP OPERATION 1 Handling Instructions 16 2 Installation 21 3 Piping 22 4 Wiring 26 5 Operation Step 27 15...

Page 18: ...4 Keep the pump away from fire To prevent fire and explosions do not place dangerous or inflammable substances near the pump 5 If pump is damaged Do not operate a damaged pump otherwise there may be e...

Page 19: ...peration of not longer than 1 hour Longer dry running operations if repeated frequently may result in wear of the sliding parts which rapidly affects the normal functioning of the inner part of the pu...

Page 20: ...5 Standard H type MDF L250 Standard 0 3 0 16 MPa 0 C 90 100 Temperature MDF L422 423 425 0 45 0 4 MPa 0 C 100 Temperature 422 423 Standard H type MDF L401 Standard 0 3 0 24 MPa 0 C 90 100 Temperature...

Page 21: ...re or corrosion resistance Pay special attention to changes in liquid characteristics as a result of temperature fluctuation The liquid temperature range for the pump using the O ring supplied by AFLA...

Page 22: ...ne droops to the left Refer to the standard performance curve to verify the head capacity If the drooping section left side of the head capacity curve is part of the pump operation specifications desi...

Page 23: ...ion to the following points Pump must be lifted horizontally using two bolts located at pump and motor In the case that there is no lifting bolt at the motor rope or such kind materials should be tigh...

Page 24: ...ned and worked so that stress and moment higher than those values indicated in the table should not be applied to the pump Z X Y X Z Y 3 Piping 22 Table 9 Piping loadings Forces of discharge piping Fo...

Page 25: ...e 11 Suction pipe pipe diameter D The horizontal section should be as short as possible and there should be an ascending gradient of 1 100 toward the pump 12 Pipe support 13 Pump drain 14 Suction pipe...

Page 26: ...t to allow air inside the line Air in the suction pipe may damage the system 3 If suction is not good e g the suction tank is a vacuum the suction head is large or the suction pipe is long the conditi...

Page 27: ...he suction pipe The end of the suction pipe should be 1 1 5 D D diameter of suction pipe or more away from the bottom of the suction tank Note that the entry of foreign matter may cause the pump to ma...

Page 28: ...fications voltage capacity etc of the pump motor 2 If using the pump outdoors waterproof the wiring to protect the switches from rainwater 3 Electromagnetic switches and push buttons should be install...

Page 29: ...arge valve fully to prevent water hammer action upon start up 6 Note that pump operation with the discharge valve closed fully over a long time will raise the temperature of the liquid inside the pump...

Page 30: ...2 Tighten the flange connecting bolts and the installation bolts on the base 3 After priming the pump close the discharge valve fully Also make sure the air vent valve and flushing piping valve are cl...

Page 31: ...thin 1 minute open the discharge valve gradually and adjust the discharge pressure while checking the reading of the pressure gauge on the discharge side Otherwise adjust the flow rate while checking...

Page 32: ...oes not allow for removal of liquid use band heater etc to prevent liquid inside from freezing In event of power failure turn off power switch and close discharge valve M Stoppage 30 1 2 Check Operati...

Page 33: ...MAINTENANCE 1 Causes of Trouble and Troubleshooting 32 2 Maintenance and Inspection 35 3 Spare Parts 39 4 Disassembly and Assembly 40 31...

Page 34: ...Speed of pump is too low K Pump rotates in reverse direction K Strainer is clogged with foreign matter and liquid passage is blocked Inspection and Measures K Stop pump feed sufficient priming water...

Page 35: ...on pipe K Inlet section of impeller unit is clogged with foreign matter K Air enters through suction pipe or gasket section K Discharge side of pump is clogged with foreign matter K There is an air tr...

Page 36: ...r or melting of pump bearing K Magnet capsule or spindle is damaged K Dynamic balance of drive magnet assembly fluc tuates K Impeller and or magnet capsule is in contact with fixing section K Wear of...

Page 37: ...pressure caused by water hammer action 4 If a spare pump is available activate it from time to time to keep it ready for use any time 5 Check to be sure there is no liquid leakage in the pump before...

Page 38: ...a slide scratches in the rear section or in the cylindrical body K Are there cracks in resin of rear section or in cylindrical body K Wear of bearing Measure dimensions K Condition of fixed with impel...

Page 39: ...pindle Unit mm 37 Model Part Inner diameter of bearing Outer diameter of spindle MDF L 250 Upon Ship ment 18 18 Upon Replace ment 19 17 MDF L 401 422 423 425 Upon Ship ment 26 26 Upon Replace ment 27...

Page 40: ...Remove the rear casing from the foot support and insert the magnet capsule attached to impeller can into the rear casing 2 Rotate the impeller slowly by hand with it positioned on the rear casing Tip...

Page 41: ...lumina ceramics 99 5 MFL 1394 MFL 1430 MFL 1432 MFL 1433 MFL 0034 MFL 0035 MFL 0036 CF AA KK CF AA KK Magnet capsule 15 AA KK Gasket O ring Spindle SiC CFRETFE FKM EPDM Aflas FKM EPDM Aflas MFL 1437 M...

Page 42: ...s M Disassembly 1 Disassemble only after thoroughly washing out the liquid inside the pump by use of flushing piping remove the cap to discharge the liquid from the pump Then clean the inside of the p...

Page 43: ...rewed into thread part of the magnet capsule completely This may cause pump damage 4 Remove the rear casing Insert a flat head screwdriver into the perimeter of the rear casing and pull the rear casin...

Page 44: ...s of disassembly in reverse Pay attention to the following points Replacement of O ring and gasket When replacing the O ring or gasket be sure to install a new one In addition see that the O ring or g...

Page 45: ...or the magnet capsule confirm the pump rotating direction is correct before reassembling the impeller and the magnet capsule without O ring If the impeller and the magnet capsule are reassembled with...

Page 46: ...X 9 2742715 TEL 43 2236 33469 FAX 2236 33469 TEL 47 66 80 66 86 FAX 66 80 66 87 TEL 31 297 241121 FAX 297 273902 TEL 34 943 630030 FAX 943 628799 TEL 32 1430 7007 FAX 1430 7008 Singapore IWAKI Singapo...

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