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Flow Rate Formula:
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The hose flow rate calculation determines the volume of water that can pass through a hose per unit time based on its inner diameter and the velocity of flow. This is essential for selecting the right hose size for various applications.
The calculator uses the flow rate formula:
Where:
Explanation: The formula calculates the cross-sectional area of the hose and multiplies it by the flow velocity to determine the volumetric flow rate.
Details: Accurate flow rate calculation is crucial for irrigation systems, firefighting equipment, industrial processes, and any application where proper water delivery is essential.
Tips: Enter the inner diameter of the hose (in inches or mm), the flow velocity (in m/s or ft/s), and select your preferred output unit (L/min or GPM). All values must be positive numbers.
Q1: Why is flow rate important in hose selection?
A: Proper flow rate ensures adequate water delivery for the intended application while minimizing pressure loss and energy consumption.
Q2: What factors affect flow rate in hoses?
A: Inner diameter, hose length, fluid viscosity, pressure, and surface roughness all impact flow rate.
Q3: What is a typical flow velocity for water in hoses?
A: For water applications, velocities between 1.5-3 m/s (5-10 ft/s) are typical to balance flow rate with pressure loss.
Q4: How does hose length affect flow rate?
A: Longer hoses create more friction loss, reducing flow rate at a given pressure. This calculator assumes minimal friction loss.
Q5: Can this calculator be used for fluids other than water?
A: While the formula is valid for any fluid, the conversion factors are specific to water. For other fluids, density and viscosity would need to be considered.