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Related Manuals for IWAKI AMERICA MW-250 Series
Summary of Contents for IWAKI AMERICA MW-250 Series
- Page 1 IWAKI AMERICA MAGNETIC DRIVE PUMP MX-(F)250 to 505 SERIES INSTRUCTION MANUAL...
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Page 2: Table Of Contents
Thank you for selecting an Iwaki America MX Series magnetic drive pump. This instruction manual explains the correct handling, maintenance, inspection and troubleshooting procedures for your pump. Please read through it carefully to ensure the optimum performance, safety and long service of your pump. -
Page 3: Unpacking And Inspection
Unpacking and Inspection Open the package and check that the product conforms to your order. Also, check each of the following points. For any problem or inconsistency, contact your distributor at once. 1. Check that the model number and the HP indicated on the nameplate conform to the specifications of your order. -
Page 4: Model Identification Guide
Model Identification Guide MX(F)250-403(H) 1 Series Symbol GFRPP casing MX-F CFRETFE casing 2 Pump Size 1” x 1” 0.5HP 1” x 1” 1.0HP 1.5” x 1.5” 0.75HP 1.5” x 1.5” 1.5HP 2” x 1.5” 402H 2.0HP 2” x 1.5” 403H 3.0HP 2.5"... -
Page 5: Specifications
Specifications Max. Motor Discharge Max Flow Specific Motor Weight (less Model Suct x Disch output @ Pressure (GPM) Gravity Frame motor) lbs. 50/60Hz (ft) MX-250 0.5 HP 17.0 1” x 1” MX-251 1 HP 22.5 MX-400 0.75 HP 13.7 1.5” x 1.5” MX-401 1.5 HP 22.5... - Page 6 MX-(F)250, MX-(F)251, MX-(F)401 14 21 13 10 Name MX-250 MX-251 MX-401 MX-F250 MX-F251 MX-F401 Front casing GFRPP CFRETFE Mouth ring Filler charged fluororesin PTFE or SiC Impeller GFRPP CFRETFE FKM/EPDM O-ring* JIS B 2401 G165 Bearing Carbon Alumina Ceramic CV, CF HD Carbon RV, RF Filler charged fluororesin...
- Page 7 MX-(F)400 Name MX400 MX-F400 Front casing GFRPP CFRETFE Mouth ring Filler charged fluororesin PTFE/SiC Impeller GFRPP CFRETFE FKM / EPDM O-ring* JIS B 2401 G135 Bearing HD Carbon CV, CF RV, RF Filler charged fluororesin PTFE ---- Magnet capsule Ferrite + polypropylene Ferrite + CFRETFE Spindle Alumina ceramic 99.5%...
- Page 8 MX-(F)402(H), MX-(F)403(H) Name MX-402(H), 403(H) MX-F402, F403 Front casing GFRPP CFRETFE Mouth ring Filler charge fluororesin PTFE or SiC Impeller GFRPP CFRETFE FKM / EPDM O-ring* JIS B 2401 G195 Bearing Carbon HD Carbon CV, CF RV, RF Filler charge fluororesin PTFE AV, KK Alumina ceramic...
- Page 9 MX-505 Name MX-505 Front casing GFRPP Rear casing GFRPP Impeller GFRPP Drive magnet unit Rare earth magnet +FCD450 Magnet capsule Rare earth magnet +PP Hex socket set screw Steel M8 x 10 Hex head bolt Stainless Steel M12 x 35, SW Hex socket head bolt Stainless Steel M10 x 45, PW, SW Hex socket head bolt...
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Page 10: Handling
Handling CAUTION Do not run pump dry When the pump is operated for the first time after it was installed or after it was disassembled and repaired, fill the pump chamber with the liquid to be pumped. If the pump runs dry without any liquid, rubbing parts of pump will seize. - Page 11 Slurry cannot be handled except for type A or KK (with alumina ceramic bearing) which can handle slurry liquid up to 5% concentration, slurry size of 50 micron m or below and hardness up to 80Hs. Contact Iwaki America if you wish to handle slurry liquid.
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Page 12: Installation, Piping, And Wiring
The lifting capability depends upon the liquid properties, temperature, and length of suction piping. For details, consult Iwaki America or your distributor. 2. The pump can be installed indoors or outdoors. However, there should be sufficient space around the... - Page 13 Installation 1. The pump anchoring area must be greater than the area of the pump baseplate. If the anchoring area is not large enough, the baseplate may be damaged due to the concentration of loads placed on it. 2. Set the pump baseplate on a concrete foundation and fasten the anchor bolts tightly to prevent the pump from vibrating during operation.
- Page 14 3. Avoid installations with poor suction conditions (e.g. vacuum in suction tank, large suction head or long suction piping). NPSHa should always be at least 2 feet greater than NPSHr. For NPSHr values, refer to the standard performance curve for your pump model or contact Iwaki America or your distributor.
- Page 15 When using the flooded suction method, the suction pipe should be given a slight ascending gradient toward the pump so that no air pocket is created on the suction side. The end of the suction pipe should be located 18 inches or more below the surface of the liquid. A screen should be provided at the inlet of the suction tank to prevent the entrance of foreign matter into the suction pipe.
- Page 16 12. Pay close attention to the lowest level of the liquid in the suction tank so that air entrainment to the suction piping will not occur. The inflow pipe into the suction tank should be distanced from the suction pipe and positioned below the liquid surface as a means of preventing air entrainment to the suction pipe.
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Page 17: Operation
Wiring Use appropriate wiring materials, follow the instruction manual for the motor and abide by the local and national electrical codes. In addition, follow the instructions given below: 1. Use a motor contactor that conforms to the specifications (voltage, current, etc.) of the pump motor. 2. - Page 18 If the direction is reversed, exchange two wires of the three-phase power wires. Note: All Iwaki America MX-(F) series pumps spin counter-clockwise when looking at the suction port of the pump. Naturally, from the motor fan side, this would be viewed as clockwise.
- Page 19 Check/Operation Step Remarks 4. Flow rate adjustment. Open valve slowly, paying attention to the motor amp meter Once total discharge pressure is increased to shut off to prevent it from being overloaded through excessive pressure. Open discharge valve gradually to set opening of the valve.
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Page 20: Maintenance And Inspection
Maintenance and Inspection Daily Inspection 1. Check that the pump operates smoothly, without generating abnormal sounds or vibration. 2. Check the level of the liquid in the suction tank, and the suction pressure. 3. Compare the discharge pressure and current measured during operation with the specifications indicated on the motor and pump nameplates to verify normal pump load. - Page 21 Inspection Part Inspection Points Operator Action Interval Drive magnet Is there scoring? Contact distributor if any Every 6 months assembly abnormality is observed. *Inspection Is magnet mounted normally? Are Re-install magnet on motor shaft record should be hexagonal socket setscrews loose? &...
- Page 22 Wear Limits of Spindle, Bearing, Mouth Ring & Impeller Thrust 250, 251, 400, 401 402, 402(H), 403, 403(H), 505 Model MX-(F) Replace Replace Bearing I.D. inches (mm) 0.709 (18) 0.748 (19) .945 (24) .984 (25) Spindle O.D inches (mm) 0.709 (18) 0.669 (17) .945 (24)
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Page 23: Troubleshooting
Troubleshooting Symptom on Pump Inspection & Trouble Cause With discharge With discharge Countermeasures valve closed valve open Pressure gauge Insufficient priming Stop pump, feed priming and vacuum liquid & restart pump. Dry operation gauge indicate ‘zero’ ... - Page 24 Symptom on Pump Inspection & Trouble Cause With discharge With discharge Countermeasures valve closed valve open Discharge quantity is Pressure gauge Pressure gauge Rotating direction of Correct motor wiring to too low. indicates low and vacuum pump/motor is reverse rotation.
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Page 25: Parts Description And Exploded View
Parts Description and Exploded View MX-250 - 401 Fig. 9 Description Description Front casing Drive magnet Mouth ring Motor Impeller Baseplate O-ring Motor adapter Bearing Bolt, baseplate w/PW & SW Magnet capsule Bolt, front casing w/PW & SW Shaft Bolt, front casing w/PW & SW Thrust collar Flange kit Rear casing... - Page 26 MX-402 – 403(H) Figure 10 *Item 5 is an integral part of the magnet capsule and not available as an individual item. Description Description Front casing Motor Mouth ring Baseplate Impeller Motor adapter O-ring Bolt, baseplate w/PW & SW Bearing Bolt, front casing w/PW &...
- Page 27 MX-505 14.1 14.2 13.2 13.1 1 18 Figure 11 Description Description Front casing Motor Rear casing Adapter Impeller Liner ring Drive magnet unit Rear thrust Magnet capsule Spindle Hex socket set screw Bearing Hex head bolt Mouth ring Hex sock head bolt O-ring Hex sock head bolt O-ring...
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Page 28: Disassembly And Assembly Of Pump
Disassembly and Assembly of Pump Caution! Since the magnets used in the pump are powerful, be careful not to catch your fingers or hand between them during disassembly or assembly. Also, keep the magnet unit away from any electronic device (or ATM card with a magnetic strip) that could be affected by a strong magnetic field. - Page 29 For MX-(F)402(H) and (F)403(H) Turn the lock pin counter clockwise by 90 degrees using a slotted screw driver and then push it towards the inside of the impeller. If it is hard to push it out, slightly tap the end of driver handle.
- Page 30 Reassembly Reassemble the pump by reversing the order of disassembly. Take care not to contaminate or damage the seal faces or o-rings. Tighten the bolts uniformly to prevent uneven tightening. 1. Mount the motor adapter to the motor. Depending on the pump model, the base may need to be removed for proper installation.
- Page 31 After the impeller is inserted (press-fit), insert the lock pins from the inside and then tighten the pin by turning it clockwise 90 degrees from outside with a slotted screwdriver. You will feel a snap when it is fixed securely. If the groove for a slotted screwdriver is deformed and cannot be used, the pin can be locked from the inside with a 4mm hex wrench.
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Page 32: Spare Parts
Original factory spare parts are necessary to ensure continuous pump operation. Expendable parts, such as bearings, spindles and mouth (thrust) rings should always be kept on hand. Consult your distributor or Iwaki America for the correct part numbers and pricing. When placing orders, supply the following information. -
Page 33: 12 Weights And Dimensions
12 Weights and Dimensions MX-250/251/400/401/402(H)/403(H) MX-505 Note 1: Overall length varies with motor type and manufacturer. Dimensions in inches (mm) Weight MODEL without SERIES motor MX-(F)250 6.30 9.75 9.39 5.12 2.56 5.12 4.53 5.22 3.25 6.12 17 lbs ---- MX-(F)251 (160) (248) (239) - Page 34 Iwaki America Incorporated 5 Boynton Road Hopping Brook Park Holliston, MA 01746 USA TEL: 508-429-1440 www.iwakiamerica.com...
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