3SPN3-5P DC submersible pump I found—it’s a 1.25-inch centrifugal pump, super solid for fish farming. It runs on 600W and has a max head of 38 meters, with a max flow of 7.6 cubic meters per hour. The motor is a water-filled PMSM type, and it comes with an internal controller, so it’s pretty easy to handle. Perfect if you need a reliable 1.5-inch pump that can keep up with your fish tanks or ponds.
this solar water pump motor we’ve got. It’s a 600W BLDC motor made from high-quality AISI 304 stainless steel, so it’s super durable. It comes with an encapsulated water-filled design and a thrust bearing system, which makes it really reliable. It can handle a maximum DC current of 15A and is suitable for submersion up to 150 meters, with water temperatures up to 40°C. The motor is pretty efficient too, reaching up to 85%, and it has an insulation class of F. For voltage, it can take a max DC VOC of 100V, but the optimal operating voltage is between 40-90V. In terms of speed, it runs up to 4500 RPM on plastic, 4000 RPM on stainless steel, and 4000 RPM with a helical design. It’s got an IPX8 enclosure, so it’s fully waterproof, and it only needs a cooling flow of about 0.5 liters per second to keep it running smoothly. Overall, it’s a solid, high-performance motor for solar water pumping.