Deep Well Pump Sizing Calculator

Enter your well parameters. The calculator returns estimated total dynamic head (TDH), required motor power, and the BBP ASJ series best suited to your application. For final specification, our engineering team validates against your Q/H curve at quote time.

Static water level (m)

Depth from surface to resting water in the well

Drawdown at pumping (m)

Additional depth as pump drops level

Discharge elevation above well head (m)

Vertical lift to tank or delivery point

Required flow (m³/h)

Peak delivery rate needed

Discharge pressure required (bar)

At point of use (1 bar ≈ 10 m head)

Water conditions

Sizing Result

Total Dynamic Head (TDH) —

Required flow —

Estimated motor power —

Recommended material —

Pump diameter class —

Recommended BBP Series: —

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Engineering note: This sizing tool uses simplified head addition (static + drawdown + discharge + pressure head) and assumes 70% hydraulic efficiency as a planning baseline. Real-world sizing accounts for pipe friction loss, Q/H curve operating point, NPSH, and well yield — all of which BBP engineers validate at quotation. Estimates are for pre-qualification only.