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Water supply of the rooftop water tank of the 12-13 floor residential building 3 HP (2.2 kW) self-priming booster pump 3 phase 380V-50Hz

Time：2026-10-23     【Original】   Read

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For the above requirement from the Kuwaiti customer, ATACH has highly targeted pump models available for selection.

Generally, the height of a residential building is calculated at 4 meters per floor. For a 13‑storey building, the total required head is 13 × 4 m = 52 m.

Based on this calculation, the matching ATACH pump model is WB2-120/260.


Its technical specifications are as follows:

  • Maximum suction lift: 8 m

  • Flow rate at 53 m head: 4.8 m³/h

  • Maximum flow: 9.6 m³/h

  • Maximum head: 59 m

  • Motor power: 2.6 kW / 3.5 HP

  • Number of impellers: 2

  • Speed: 2900 rpm

  • Wetted parts material: 304 stainless steel

  • Seal: leak‑free mechanical seal

  • Motor: full copper winding, IP55, Class F insulation

  • Connection: BSP female thread, G1 1/4 × G1

  • Total weight: approx. 23.6 kgs


If you are interested in pumps for rooftop water tank water supply or circulation service, ATACH WB series micro stainless steel centrifugal pumps are an excellent option.


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