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Pump Pressure Formula:
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Pump pressure is the pressure generated by a pump to move fluid through a system. It represents the energy per unit volume that the pump imparts to the fluid to overcome resistance and elevation changes in the system.
The calculator uses the fundamental pressure formula:
Where:
Explanation: This formula calculates the static pressure required to lift a fluid to a certain height, considering the fluid's density and gravitational force.
Details: Accurate pump pressure calculation is essential for proper pump selection, system design, energy efficiency optimization, and ensuring adequate flow rates in hydraulic systems.
Tips: Enter fluid density in kg/m³ (water ≈ 1000 kg/m³), gravitational acceleration in m/s² (standard is 9.81 m/s²), and head height in meters. All values must be positive numbers.
Q1: What is the difference between static head and dynamic head?
A: Static head is the vertical height difference, while dynamic head includes friction losses in pipes and fittings. This calculator computes static pressure only.
Q2: Why is fluid density important in pressure calculation?
A: Denser fluids require more pressure to achieve the same head height. Water (1000 kg/m³) needs less pressure than mercury (13500 kg/m³) for the same height.
Q3: What are common units for pump pressure?
A: Common units include Pascals (Pa), bars (1 bar = 100,000 Pa), psi (pounds per square inch), and meters of water column.
Q4: How does temperature affect pump pressure calculations?
A: Temperature affects fluid density. Warmer fluids are less dense, requiring slightly less pressure for the same head height.
Q5: When should I consider additional pressure factors?
A: For real-world applications, add pressure for pipe friction, fittings, valves, and safety margins (typically 10-20% additional pressure).