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Water Head to Pressure Formula:
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Water head to pressure conversion calculates the pressure exerted by a column of water based on its height. This is essential in hydraulics, plumbing, and fluid mechanics to determine the pressure at different points in a water system.
The calculator uses the water head to pressure formula:
Where:
Explanation: The conversion factor 0.433 represents the pressure exerted by one foot of water at standard conditions (density of water = 62.4 lb/ft³, gravity = 32.2 ft/s²).
Details: Accurate pressure calculation is crucial for designing water supply systems, determining pump requirements, calculating hydrostatic pressure in tanks, and ensuring proper functioning of hydraulic systems.
Tips: Enter the water head height in feet. The value must be positive and greater than zero. The calculator will automatically compute the corresponding pressure in PSI.
Q1: Why is the conversion factor 0.433?
A: The factor 0.433 comes from the calculation: (density of water × gravity) / (144 in²/ft²) = (62.4 × 1) / 144 ≈ 0.433 psi per foot of water.
Q2: Does this calculation work for other liquids?
A: No, this specific conversion factor applies only to water. For other liquids, you need to use their specific density in the calculation.
Q3: What is a typical water head pressure in residential systems?
A: Residential water systems typically operate at 40-80 psi, which corresponds to approximately 92-185 feet of water head.
Q4: How accurate is this conversion?
A: The conversion is accurate for pure water at standard temperature (4°C/39.2°F). Temperature variations can slightly affect water density and thus the pressure.
Q5: Can this be used for calculating pump head requirements?
A: Yes, this conversion is fundamental for determining the total dynamic head required for pump selection and system design.