Pump Total Dynamic Head (TDH) Calculator
Add static lift, discharge head, and suction/discharge friction into the total head a pump must develop.
Velocity-head difference is usually negligible; friction terms dominate sizing errors. Pick the pump so the duty point sits near best-efficiency.
Formula
Pump Total Dynamic Head (TDH) Calculator is a free pump head calculator for pump engineers, plumbers and plant designers โ instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Pump Total Dynamic Head (TDH) Calculator
Add static lift, discharge head, and suction/discharge friction into the total head a pump must develop. The calculation implements TDH = H_static(suction) + H_static(discharge) + ฮฃh_f + P_residual/ฯg (Hydraulic Institute โ ANSI/HI 14.3 (rotodynamic pump design)). Velocity-head difference is usually negligible; friction terms dominate sizing errors. Pick the pump so the duty point sits near best-efficiency.
How to use Pump Total Dynamic Head (TDH) Calculator
- 1Enter Static suction lift (+) / flooded (โ) in m.
- 2Enter Static discharge height in m.
- 3Enter Suction-side friction in m.
- 4Enter Discharge-side friction in m.
- 5Read Total dynamic head, Equivalent pressure instantly โ no submit button needed.
- 6Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Pump Total Dynamic Head (TDH) Calculator?
- โImplements the standard formula โ TDH = H_static(suction) + H_static(discharge) + ฮฃh_f + P_residual/ฯg
- โReference cited on-page: Hydraulic Institute โ ANSI/HI 14.3 (rotodynamic pump design)
- โOne-click SI โ Imperial toggle โ values convert in place, physics stays in SI
- โLive worked example: the substitution recomputes from your numbers
- โRuns entirely in your browser โ nothing uploaded, free forever
Frequently asked questions
What formula does the Pump Total Dynamic Head (TDH) Calculator use?+
It computes TDH = H_static(suction) + H_static(discharge) + ฮฃh_f + P_residual/ฯg, per Hydraulic Institute โ ANSI/HI 14.3 (rotodynamic pump design). The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Velocity-head difference is usually negligible; friction terms dominate sizing errors. Pick the pump so the duty point sits near best-efficiency.
Can I use this for pump selection?+
Use it to establish the duty (flow, head, NPSH, power) and then pick a pump whose curve passes through that point near best efficiency. The tool gives you the engineering numbers a supplier will ask for.
Is the Pump Total Dynamic Head (TDH) Calculator free to use?+
Yes โ completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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