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Home » Saltwater Aquarium Supplies » Water Pumps » External » Up to 1000 GPH » Iwaki MD Water Pump (Japanese Motor)

Iwaki MD Water Pump (Japanese Motor)

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Magnetic water pumps. Magnetic driven. Sealess pumps for use on fresh or saltwater aquariums. Low heat exchange and quiet in operation. Highly durable design. WMD pumps have American Made Motors. MD pumps have Japanese Made Motors. RLT pumps are for pressure applications. RLXT pumps are for circulation and wet/dry return.

Iwaki Walchem magnetic drive pumps will run longer, quieter and cooler than any traditional mag drive. Extraordinarily high efficiencies make WMD & MD the clear choice in almost every process, recirculation or transfer application.

Unique internal Cooling Circuit
Creates a positive, forced cooling path, lubricating bearing surfaces and actively purging gases & heat. Unique double bearing system allows cooling circuit liquid to continually "wash" front and rear radial bearings, extending bearing life.

Precision Tolerances
Pumps can be supplied with alumina ceramic or SiC spindles, bored, turned and highly polished. This precision machined spindle forms the center of the driven magnet. Substantially reduced hydraulic noise is a major feature of all WMD/MD impellers. Great pains are taken in the molding/finishing process to eliminate tangential misalignment.

Bearings/Thrust surfaces
High lubricity fluoropolymer bearings minimize mechanical losses typical of conventional mag drive pumps. High purity SiC radial bearings handle the most aggressive ultrapure chemistries. PTFE front thrust surface aids hydraulic balance and minimizes flashing. Large rear thrust surface guards against axial forces caused by cavitation or gas entrapment.

Drive magnet
Dynamically balanced barium ferrite drive magnets provide best magnet torque. Die cast magnet carrier creates a flywheel effect, which adds to the magnet safety factor.

Motor matching
Offering more standard motor/pump configurations than other manufacturers offer for tailored pump applications. Premium, high efficiency motors are used throughout the line. Totally enclosed, permanent split capacitor motors are compact, cool and economical. Tolerance to voltage variation without overheating and 50/60 Hz operation allow the product to be used in a worldwide market.

Model: MD20RLT*
Inlet(MPT)/Outlet(MPT): 3/4"/3/4"
Flow Rate @ 4` Head: 420 GPH
Max Head ft: 14.1

In the unlikely event there are any problems with Iwaki water pumps or warranty work is needed at some point, please contact Iwaki directly at 508.429.1440 for an RGA. Do NOT send a pump back to Iwaki without an RGA number. Please contact us for any assistance you may need in this unlikely situation.

Note: Power cord NOT included.

Customer Reviews

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75 of 76 people found the following review helpful:

Excellent!

Lasts forever by fpbear

Experience Level: Expert

Posted on 6/22/2008 from CA UNITED STATES

Comments: I've had one of these for 6 years now, and it runs like new. Just clean the plastic parts, it comes apart real easy using the bolts.
Yes, I would recommend this product to my friends.

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11 of 12 people found the following review helpful:

Excellent!

Great Quality by VINCENT AMARO

Experience Level: Beginner

Posted on 11/22/2008 from SAN JUAN CAPISTRANO, CA UNITED

Comments: Excellent pump! Lots of power. I would buy again. Not too loud but not silent either. I have my tank in the family room with the pump mounted under the stand and it is not a problem.
Yes, I would recommend this product to my friends.

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Iwaki MD Water Pump (Japanese Motor)

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