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Summary of Contents for IWAKI PUMPS MDF-L250
- Page 1 IWAKI Magnetic Drive Pump Model MDF-L Instruction Manual Read this manual before use of product...
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Page 2: Table Of Contents
Thank you for selecting the IWAKI Magnetic Drive Pump type MDF-L. This instruction manual has been prepared to ensure correct and safe handling of the pump. Please read this manual carefully and thoroughly prior to operating the pump. Pay special attention to the "Safety Instruction to Prevent Personal Injuries," "Warning," and "Caution"... -
Page 3: Important Instructions
IMPORTANT INSTRUCTIONS Important notes and statements for safe operation, preventing physical injury, and property damage, are included on the body of the product and in the attached instruction manual. Always Observe These Safety Instructions! Safety Instruction to Prevent Personal Injuries Ignoring this message can lead to improper Warning handling resulting in death or serious injury to the... - Page 4 Safety Section WARNING Damaged or deteriorated tools are very dangerous. Use qualified and suitable • tools only. Caution Use of protectors: When disassembling, assembling, and conducting maintenance • or when handling a dangerous type of liquid or a liquid of unknown property, be sure to wear safety gloves, a helmet, and protective shoes.
- Page 5 Safety Section WARNING Do not allow toxic substances such as lubricants, solvents, or similar sub- • stances to flow into the local sewage system or river systems. Do not drain haz- ardous liquids such as chemical solutions discharged out of the pump directly onto Prohibited the ground.
- Page 6 Safety Section CAUTION Spill-out prevention measures • Appropriate protective measures should be taken against any spill-out accidents involving the operating liquid as a result of unexpected damage to the pump or the Caution piping. Never discharge hazardous liquid, including, but not limited to, chemical liq- uid, over the ground or floor on the pump operating site.
- Page 7 Safety Section 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. Caution •...
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Page 8: Outline Of Product
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: Before Using Pump
1. Before Using Pump After unpacking, check the following points to confirm that the delivered product and its accompanying parts and Iwaki Magnet Pump elements are exactly what you ordered. MDF - L MODEL HEAD When lifting the pump please follow the procedure CAPACITY (R/ min) mentioned "2. -
Page 10: Identification Codes
3. Identification Codes Example: MDF-L 42 5 CF V T - D q Series MDF-L Type Series w Size of pump: Shows discharge port diameter (42 shows 40) e Motor output 0: 0.37 kW 1: 0.75 kW 2: 1.5 kW 3: 2.2 kW 5: 4 kW 7: 5.5 kW... -
Page 11: Specifications
Model Suction Port speed Output Code Discharge Port (min 50Hz 12.2 - 50 7.3 - 150 × MDF-L250 0.37 5.6 - 150 3.0 - 150 16.8 - 100 4.5 - 200 × MDF-L401 0.75 8.3 - 200 4.8 - 200... - Page 12 M M Outer dimensions Model MDF-L250 4-ø12 MDF-L401 MDF-L422 4-ø14 MDF-L423 MDF-L425 Model MDF-L505 MDF-L507 MDF-L657 4-ø14 108.5 MDF-L6510 MDF-L6515 M M Mass Model 6510 6515 Mass (kg) - 10 -...
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Page 13: Names Of Parts
5. Names of Parts M M Names of Parts • MDF-L250 and 401 Remarks Parts name Q'ty Material Model 250 Model 401 Front casing Rear casing CFRETFE Impeller Drive magnet unit FERRITE MAGNET+ALUMINUM ALLOY Hex. head bolt M8×65, WITH SW, Q'TY5 M8×70, WITH SW, Q'TY5... - Page 14 • MDF-L422, 423 and 425 2 13 5 21 15 19 Parts name Material Remarks Q'ty Front casing Rear casing CFRETFE Impeller Drive magnet unit RARE EARTH MAGNET+FCD450 Hex. socket head bolt M10×40 WITH SW STNLS STL M10×75 WITH SW Hex.
- Page 15 • MDF-L505, 507, 657, 6510 and 6515 5 25 2 13 19 21 15 Remarks Parts name Q'ty Material Model 505 and 507 Model 657 and 6510 Model 6515 Front casing Rear casing CFRETFE Impeller Drive magnet unit FERRITE+SS400 Hex. head bolt M12×50, WITH SW, Q'TY 5 M12×50, WITH SW, Q'TY 5 M12×90, WITH SW, Q'TY 6...
- Page 16 M M Description on Main Unit Body and Label Motor nameplate Use only the power voltage specified on the Pump unit (liquid feeding section) nameplate. (Follow applicable local power Non-self priming type: Before operating the regulations when used outside of Japan.) pump, feed priming liquid through...
- Page 17 PUMP OPERATION 1. Handling Instructions ...... 16 2. Installation ........21 3. Piping ..........22 4. Wiring ..........26 5. Operation Step ....... 27 - 15 -...
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Page 18: Handling Instructions
1. Handling Instructions (Observe all the following instructions to prevent injuries and accidents.) Caution ¡Read the following information prior to installing the pump. ¡Protective wear: When operating the pump or working near it, with the pump system loaded with chemical liquid, always wear protective clothing, face guard, goggles, and gloves. - Page 19 No remodeling Never try to remodel the pump. This may cause a serious accident or damage. Limitation to disassembly or repair Users are allowed to disassemble and repair the pump to the degree of the given description in "Disassembly and Assembly" in this manual. No dry running operation Dry operation of the pump (pump operation without liquid inside) may cause damage to the pump internally.
- Page 20 Allowable pressure limit See the table 1~5 for allowable pressure limits of each model. See that the discharge pressure does not exceed the allowable pressure limit. NOTE Table 1 Table 2 MDF-L250 MDF-L401 "H" type "H" type 0.24 0.16 Standard Standard ˚C...
- Page 21 [12] Use of slurry liquid In principle, slurry liquid pumping is not possible. However, pumps with ceramic bearings (AA, and KK types only) can handle the pumping of slurry liquid with a density of 5wt% or less, grain size of 50 µm or less, and hardness of 80Hs or less.
- Page 22 [18] Operation within range of drooping head capacity curve In the case of a pump which generates a drooping head capacity curve in a low-capacity range, do not operate the pump in the section where the line 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, design the piping with the following points in mind.
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Page 23: Installation
2. Installation Installation position • Install the pump as close to the suction tank as possible and in the lowest position available (for flooded suction). • If the suction port of the pump is to be positioned higher than the suction tank (for suction lift), be sure to arrange for a foot valve in the priming pipe and suction pipe. -
Page 24: Piping
Recomended bolt size and tightening torque for piping flange are as follows. MDF-L250 : Bolt size is M12 and tightening torque is 42 N·m. MDF-L401, 422, 423, 425, 505, 507, 657, 6510 and 6515 : Bolt size is M16 and tightening torque is 78.4 N·m. - Page 25 Example of piping 16 13 Discharge pipe (Support the pipe to keep the (11) Suction pipe (pipe diameter: D) pump free of piping load.) (The horizontal section should be as short as Valve possible and there should be an ascending Check valve gradient of 1/100 toward the pump.) Pressure gauge...
- Page 26 M Suction piping The suction pipe should employ the flooded suction method if possible. The shortest pipe possible, with the minimum number of bends, should be used. Arrange a proper support under the suction pipe such as an expansion joint or the like so that the weight and thermal stress of the pipe are not applied to the pump. Attach the coupling on the suction pipe carefully so as not to allow air inside the line.
- Page 27 If the diameters of the pump suction port and the suction pipe are different, use an eccentric reducer pipe. Connect the eccentric reducer pipe so that the upper surface is level. In any case, never use a suction pipe with a diameter smaller than that of the suction port.
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Page 28: Wiring
It is recommended that a valve be installed on the discharge pipe for the adjustment of discharge volume and for the prevention of overload onto the motor. When installing both a check valve and a valve, the check valve should be positioned between the pump and the valve. Do not fail to install a pressure gauge on the discharge piping. -
Page 29: Operation Step
The max. pump surface temperature of each model is shown in the table. Arrange protective measures in accordance with the temperature levels. Maximum surface temperature Rated speed Liquid temp (˚C) when ambient temperature (min Model is at 40 ˚C. (˚C) MDF-L250 422, 423, 425 2900 505, 507 657, 6510 6515 - 27 -... - Page 30 The level of sound generated by each type of pump is shown in the table. Arrange a muffling measures in accordance with the sound level. The procedure for sound measurement conforms to the EN 31201 (ISO11201). Model MDF-L250 422, 423, 425 505, 507...
- Page 31 Following discharge volumes should be noted during pump operation. MDF-L250 and 401: 10r/min. or above MDF-L422 and 423: 20r/min. or above MDF-L425, 505, 507, 657, 6510, and 6515: 50r/min. or above •...
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Page 32: Pump Operation
M Stoppage Check/Operation Step Remarks • Close discharge valve gradually. • Do not cause sudden closure with solenoid valve, etc., otherwise pump may be destroyed by water hammer action which is likely in case of long discharge piping. • Turn off the power and stop pump operation. •... -
Page 33: Causes Of Trouble
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: And Troubleshooting
1. Causes of Trouble and Troubleshooting Refer to "1. Causes of Trouble and Troubleshooting". Consult supplier for more information. If you find any troubles, turn off the power supply immediately. Symptom on pump Problem Cause Inspection and Measures When Discharge When Discharge Valve is Closed Valve is Opened... - Page 35 Symptom Inspection and Problem Cause When Discharge When Discharge Countermeasures Valve is Closed Valve is Opened K Air is trapped in suction K Inspect setup condition of Pointer of vacuum gauge pipe. suction pipe and modify it if indicates necessary. extraordinarily high value.
- Page 36 Symptom Inspection and Problem Cause When Discharge When Discharge Countermeasures Valve is Closed Valve is Opened K Voltage is lowered. K Check whether the voltage and frequency levels are adequate. K Overload. K Check whether the specific Motor is overheated. gravity and viscosity of liquid are adequate.
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Page 37: Maintenance And Inspection
To ensure efficient and smooth operation of the pump, carry out periodic inspections by the following procedures described below. The overhauling and repair work for IWAKI pumps must be performed by qualified and trained personnel. User’s failure to observe this instruction exempts IWAKI from the responsibility for personal injury or damage to the equipment or facility which result from its misuse. - Page 38 Inspection Timing Part Name Check Points K Are there slide-scratches? Drive magnet unit K Is housing fixed normally? Is hex. socket set screw loose? K Are inner perimeter of magnet and motor shaft coaxial? (Max. eccentricity: 1/10 mm) K Are there slide-scratches in bore? Rear casing K Are there cracks on liquid end part? K Wear of thrust ring.
- Page 39 * Initial wear may appear in the sliding parts in the first stages of operation. This should not be mistaken for an abnormal condition. M Wear limit of mouth ring Unit: mm MDF-L250, 401, 422, MDF-L505, 507, 657, Model 423, 425...
- Page 40 M Wear limits of tips of impeller thrust and spindle (only for pumps with D or E at the end of model identification) Pumps whose model identification codes have D or E at the end are designed to result in contact between the impeller thrust tip and the spindle tip in the event of an abnormal operating condition (cavitation, dry operation, etc.).
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Page 41: Spare Parts
3. Spare Parts Appropriate spare parts are necessary to ensure long, continuous operation of the pump. It is recommended that consumable parts be kept at hand constantly. When placing an order, supply the following information. q Name of part and part number (in accordance with the drawings in this instruction manual) w Pump model number and manufacturing number (as indicated on the pump nameplate) e Drawing number if you have received the IWAKI-approved drawing MDF-L... -
Page 42: Disassembly And Assembly
Caution Strong impacts may crack the spindle or casing. Do not hit them with a tool. * Note on MDF-L250, 401, 422, 423 and 425 The spindle is integrated with the rear casing, not pressed into the front casing. MDF-L250, 401, 422, 423 and 425 * During disassembly, discharge the liquid from the casing and clean the inside of the pump. - Page 43 Handle the front casing, magnet capsule, and impeller with extra care so as not to scratch the sliding surface and sealing surface. * Note on MDF-L250, 401, 505, 507, 657, 6510 and 6515 Then disconnecting the impeller from the magnet capsule, hold the magnet capsule by hand and strike the rear of the impeller gently with a resin hammer.
- Page 44 * If the spindle does not come off easily, warm the front casing in hot water (about 90 ˚C) before pulling it out for replacement. * In the case of the MDF-L250, 401, 422, 423 and 425, the casing and the spindle are integrated. It is not possible to replace only the spindle.
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Page 45: Maintenance
[3] Check that there is no metal piece or other matter adhering onto the magnet capsule. Then, insert the magnet capsule and impeller slowly into the rear casing. * Note that the magnetic force of the magnet capsule is very strong. [4] Confirm there is no dust or scratches on the seal surface of the front casing. - Page 46 TEL : (86)20 8130 0605 FAX:(86)20 8130 0601 Holland : IWAKI Holland B.V. TEL : (31)297 241121 FAX:297 273902 Australia : IWAKI Pumps Australia Pty. Ltd. TEL : (61)2 9899 2411 FAX:2 9899 2421 Spain : IWAKI Iberica Pumps,S.A. TEL : (34)943 630030 FAX:943 628799 U.S.A.
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