Convert Water lb/hr to GPM

Water Flow Conversion Formula:

\[ Q = \frac{W}{8.34 \times 60} \]

Flow Rate (GPM):

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1. What is Water lb/hr to GPM Conversion?

Definition: This calculator converts water flow rate from pounds per hour (lb/hr) to gallons per minute (GPM).

Purpose: It helps engineers, plumbers, and water system designers convert between mass flow and volumetric flow rates for water.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Q = \frac{W}{8.34 \times 60} \]

Where:

\( Q \) — Flow rate in gallons per minute (GPM)
\( W \) — Mass flow rate in pounds per hour (lb/hr)
8.34 — Weight of 1 gallon of water (lbs)
60 — Conversion factor (minutes to hours)

Explanation: The formula converts mass flow to volumetric flow by accounting for water's density and time unit conversion.

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion ensures proper system design, pump sizing, and compliance with engineering specifications.

4. Using the Calculator

Tips: Enter the water flow rate in pounds per hour (lb/hr). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is 8.34 used in the formula?
A: 8.34 lbs is the weight of 1 gallon of water at standard conditions (60°F).

Q2: Does this work for other liquids?
A: No, this is specific to water. Other liquids require their specific gravity in the calculation.

Q3: What's the accuracy of this conversion?
A: It's accurate for pure water at standard conditions. Temperature variations may affect results slightly.

Q4: How do I convert back to lb/hr?
A: Multiply GPM by 500.4 (which is 8.34 × 60).

Q5: When would I need this conversion?
A: When working with equipment specifications that use different flow rate units or comparing system performance data.