Iwaki MD Water Pump (Japanese Motor) Information
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.
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.
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.
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.
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.
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.
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canadians watch out!
(Posted on 12/18/13)
Comments: Fantastic pump! if you are looking at it you already know. i live in canada and upon arrival ups hit me with a $72 import charge. not much value buying from the states after that imo. just a heads up to my canadian friends.
(Posted on 10/21/13)
Comments: There probably isn't a need to review Iwaki MD pumps. They've been around a long time and everyone knows they are well built. I have the 30RLT. The 20s and 30s don't have fans, so they run hot to the touch, but much quieter than the 40s and up. Pressure rated and likely to run unnoticed for years to come, it's a great pump. I also like knowing that replacement parts are easily found should I need them.
Good Strong Dependable Pump
(Posted on 9/5/13)
Comments: The Iwaki MD70 pump is a good quality and well designed pump, and circulates water quite well within the aquarium. It is however a bit on the loud side, so if you are looking for a quiet pump I would probably choose another. If you are wanting this pump to work with a large canister filter, it will certainly do the job with ease and can of course handle back pressure well.
It has performed flawless for me thus far and I would certainly recommend this pump to anyone who wants quality & dependability!
(Posted on 8/13/13)
Comments: Fan rubs on housing during start up. Sounds like something is stuck in fan, very loud then stops clanging when at full speed. Overall pump runs loud when in use compaired to the little giants. Time will tell on the reliability.
(Posted on 6/1/13)
Comments: I am another one of the happy hobbyist with my Iwaki MD-30 RT return pump. My biggest problem prior to installing this exterior pump was heat and very little space in the sump for another pump, Iwaki solved that problem expertly. I've been running this pump for the past several years with no issue. Their is a constant low hum that I no longer pay any attention to.
This is a very good investment.