USK Submersible Water Pump 0.5HP 4SDM

The USK 0.5HP Submersible Water Pump is a popular and relatively affordable solution for drawing water from boreholes, deep wells, or large tanks where the water level is too low for a surface pump to operate effectively.

Here’s a breakdown of its features, typical applications, where to buy it in Nairobi, and general price expectations:

Key Features and Specifications (Typical for USK 0.5HP Submersible Water Pumps):

• Pump Type: Submersible Pump. This means the entire pump (motor and pump end) is designed to be fully immersed in the water. This is crucial for deep wells as it eliminates the suction lift limitations of surface pumps.
• Horsepower (HP): 0.5 HP.
  • Wattage: Typically around 370 Watts (0.37 KW).
• Performance (Crucially depends on the specific model and stages):
  • Maximum Head (Vertical Lift): This is the most important specification for submersible pumps. For a 0.5HP USK submersible, you’ll commonly find models designed for a maximum head ranging from 30 meters to 50 meters or even 60 meters. This indicates how high the pump can push water upwards from its submerged position.
  • Maximum Flow Rate: Varies with head, but generally ranges from 1.5 to 3 cubic meters per hour (m³/h) or 25 to 50 liters per minute (L/min). Flow decreases as the head increases.
  • Well Diameter: Submersible pumps are designed to fit into specific well diameters. Common sizes for a 0.5HP might be 3-inch or 4-inch well casings.
• Construction:
  • Often features a stainless steel body (for corrosion resistance and durability in water).
  • Impellers can be plastic (Noryl) or stainless steel (for sand resistance). For borehole pumps, multi-stage impellers are common to achieve high head.
  • Copper motor windings are typical for efficiency and longevity.
• Voltage: Single-phase 220V-240V AC (50Hz).
• Control Box: Submersible pumps typically require an external control box (or starter box) for starting and protecting the motor. This is usually included with the pump and contains a capacitor and thermal overload protection.
• Cable: Comes with a pre-attached electrical cable, the length of which determines how deep it can be submerged (e.g., 30m, 50m cable).