USK QB-70 Surface Water Pump 0.75HP

The USK QB-70 Surface Water Pump 0.75HP is an upgrade from the QB-60, offering increased power and performance for slightly more demanding domestic and light commercial water transfer and boosting applications. Like the QB-60, it’s a peripheral or regenerative pump known for generating good pressure.

Key Specifications and What They Mean:

• USK QB-70: This is the model designation. The “QB” series are peripheral pumps, often with a brass impeller, efficient at creating high head (pressure). The “70” indicates its position in the series, signifying a higher power output than the QB-60.
• Surface Water Pump: This means it’s designed to sit outside and above the water source (e.g., a tank or shallow well), drawing water up through a suction pipe. It is not meant to be submerged in water.
• 0.75HP (Horsepower): This indicates the motor’s power output.
  • In Watts: 0.75 HP is equivalent to approximately 550 Watts (0.55 KW). This is a common power rating for residential water pumps, offering a noticeable improvement over 0.5HP models.

Typical Performance Specifications (based on common QB-70 0.75HP pumps):

• Maximum Head (Height): Significantly higher than the QB-60, typically around 45 to 50 meters. This means it can push water to greater vertical distances or provide higher pressure for showers and taps.
• Maximum Suction Lift: Usually around 8 to 9 meters. While the pump is more powerful, the theoretical maximum suction lift for most surface pumps remains around this range due to atmospheric pressure limits. Keeping the suction pipe as short as possible is always best for efficiency.
• Maximum Flow Rate: Increased compared to the QB-60, typically around 35 to 45 liters per minute (L/min), or roughly 2,100 to 2,700 liters per hour. This higher flow rate allows for faster tank filling or supplying multiple outlets simultaneously.