Hydraulic Hose Flow Rate Calculator

Flow Rate Formula:

\[ Q = V \times A \times 448.83 \]

Flow Rate (GPM):

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1. What is a Hydraulic Hose Flow Rate Calculator?

Definition: This calculator estimates the flow rate through a hydraulic hose based on fluid velocity and cross-sectional area.

Purpose: It helps hydraulic system designers and technicians determine the flow capacity of hoses in gallons per minute (GPM).

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Q = V \times A \times 448.83 \]

Where:

\( Q \) — Flow rate (gallons per minute)
\( V \) — Fluid velocity (feet per second)
\( A \) — Cross-sectional area of hose (square feet)
448.83 — Conversion factor (cubic feet to gallons and seconds to minutes)

Explanation: The formula converts the basic flow rate calculation (velocity × area) to practical units of GPM.

3. Importance of Flow Rate Calculation

Details: Proper flow rate estimation ensures efficient hydraulic system operation, prevents excessive pressure drops, and helps select appropriately sized hoses.

4. Using the Calculator

Tips: Enter the fluid velocity in ft/s and the hose's cross-sectional area in ft². All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical fluid velocity in hydraulic systems?
A: Most systems design for 7-15 ft/s for suction lines and 15-30 ft/s for pressure lines.

Q2: How do I find the cross-sectional area?
A: Calculate using \( A = \pi \times (D/2)^2 \) where D is the inner diameter in feet.

Q3: Why the conversion factor 448.83?
A: It combines 7.48052 (gallons per cubic foot) and 60 (seconds per minute).

Q4: What affects flow rate in hydraulic systems?
A: Hose diameter, fluid viscosity, pressure, and system restrictions all impact flow rate.

Q5: Does this account for friction losses?
A: No, this calculates theoretical flow. Actual flow may be lower due to friction and other losses.