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Iwaki MD20RLT Water Pump (Japanese Motor)

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Iwaki

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 outlet plug NOT included.








Product Manuals & Documentation

Iwaki MD20RLT Water Pump (Japanese Motor)

Owner's Manual available for download in Adobe PDF file format

Manufacturer Info

Iwaki America Inc.
Iwaki America Inc. of Holliston, Massachusetts, is a joint venture which grew from a 15 year association between Walchem Corp. of Holliston, MA and Iwaki Co. Ltd. of Tokyo, Japan. Combining Walchem`s 30 years of chemical injection and control experience with Iwaki`s 50 years of pump design engineering, Iwaki America offers the best chemical handling equipment for use in Process, O.E.M., Industrial and Semiconductor applications. Iwaki America, along with Walchem Corporation and Terracon Corporation comprise the Walchem Group.

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57 Reviewers (51%) would recommend this

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“Nice pump”
4.0

Nice, high quality pump. Runs nice and quiet too. Would have given it 5 stars but you need to go and get a plug and extension for the power cord.

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“love this pump”
4.5

replaced my gen-x pump with the md40 pump has slight hum, much quieter than previous pump. my md20 has been running for the past 12 years so if that is any indication of super pumps then no complaints.

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“Nice”
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Very quiet love it

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“Iwaki md-40 rlxt”
4.0

The pump is nice and powerful. However, it is louder than I expected to be. Good pump overall.

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“Powerful and solid”
5.0

Very nice pump. It is powerful, and moves the water quickly. Its been running my tank since May now. I'm very happy with it, and the only complaint I have is that it seems to heat the water up. Not sure how that is happening, but I have never had to use a chiller until now. I'm hoping the chiller is...Read More

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“Excellent”
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Money well spent. Extremely quiet and powerful. Lowered temperature in my tank drastically.

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“Iwaki MD30”
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Great pump, incredibly quiet and plenty strong to run my ETSS Skimmer which was recommended to run with the MD40. Only draw back is it does get very hot, but I'll take the heat over noise any day. I also purchased the MDX40 which works great but because of the fan it is a little noisy!! All in all y...Read More

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57 Reviewers (51%) would recommend this

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 4
4.0  Star
 10
3.5  Star
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3.0  Star
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2.5  Star
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2.0  Star
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1.0  Star
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