USK 4SDM307 Submersible Water Pump 0.5HP

The USK 4SDM307 Submersible Water Pump 0.5HP is a common type of pump specifically designed to be submerged directly into a borehole, well, or reservoir. The “4SDM307” is a specific model designation that indicates its type and performance characteristics.

Key Specifications and What They Mean:

• USK 4SDM307:

  • “4”: This typically refers to the diameter of the pump in inches, meaning it’s designed for boreholes or wells with a minimum casing diameter of 4 inches (approx. 100mm). This is a very common size for domestic and small-scale agricultural boreholes.
  • “SDM”: Denotes a Submersible Deep Well Multi-stage pump. Multi-stage pumps have multiple impellers in series, allowing them to generate very high head (pressure) for pumping water from significant depths.
  • “3”: Often indicates the nominal flow rate, likely 3 cubic meters per hour (3m³/h), or 50 liters per minute, at a specific head.
  • “07”: Typically indicates the number of impellers (7 stages) within the pump, which directly relates to its ability to generate high head.

• Submersible Water Pump: This is the defining characteristic. The entire pump and motor assembly are designed to be fully immersed in the water during operation.

  • Advantages of Submersible Pumps:
    • No priming issues: Since they are already submerged, they don’t need to be primed like surface pumps.