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Pump Discharge Pressure Formula:
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Pump discharge pressure is the pressure at the outlet of a pump, calculated as the sum of the suction pressure and the pressure increase provided by the pump. It's a critical parameter in fluid systems to ensure proper flow and pressure throughout the system.
The calculator uses the pump discharge pressure formula:
Where:
Explanation: The pump adds energy to the fluid, increasing its pressure from the suction side to the discharge side.
Details: Accurate discharge pressure calculation is essential for proper pump selection, system design, and ensuring that the pump can overcome system resistance to deliver fluid to the required destination.
Tips: Enter suction pressure and pump pressure increase in Pascals (Pa). Both values must be non-negative numbers.
Q1: What units should I use for pressure values?
A: This calculator uses Pascals (Pa) as the pressure unit. You may need to convert from other units like psi, bar, or kPa before entering values.
Q2: What if my pump has negative suction pressure?
A: Negative suction pressure (vacuum) is possible. For this calculator, enter it as a positive value and note that it will reduce the discharge pressure.
Q3: Does this formula account for elevation changes?
A: No, this is the basic formula. For systems with significant elevation changes, you may need to include static head in your calculations.
Q4: What is typical ΔP_pump for common pumps?
A: ΔP_pump varies greatly by pump type and size. Centrifugal pumps might provide 50-500 kPa, while positive displacement pumps can achieve much higher pressures.
Q5: How does fluid density affect the calculation?
A: This simple formula doesn't account for density changes. For accurate results with different fluids, you may need to consider density effects on pump performance.