My pump is about 9 inches long, and 4.5 inches tall (excluding the outlet). The Iwaki should be about 10.5 inches long, but 4 inches tall (without the outlet).
Also from the Iwaki website:
"The WMD series runs hotter than the MD series. A rule of thumb is that the pump should be hot to the touch but you should be able to hold your hand on it for about 5 seconds. All MD/WMD pumps are thermally protected to shut off once the pump reaches a critical temperature. There is an automatic reset.
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"We recommend horizontal mounting but vertical mounting can be utilized up to size 40. A heads up position is preferred. Always be sure that flooded suction conditions exist when mounting the pump vertically." (in other words, keep it primed!)
"For our MD-6 through (W)MD-30 series, the motor type is Totally Enclosed Non-Ventilated (TENV). For our (W)MD-40 and above, the motor is Totally Enclosed Fan Cooled (TEFC). All but one model are Permanent Split capacitor motors. We use the best bearing available in motors of this type, sealed-for-life roller bearings. We custom manufacture all of these motors and they are specific to our product only. You can not purchase them elsewhere."
I believe that the same applies to my pump too.
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