Pipe Sizing Calculator Excel (Free Download)

🚰 Introduction

Proper pipe sizing is critical for efficient water flow, pressure control, and system performance. An undersized pipe leads to pressure loss, while oversized pipes increase cost.

Download our Pipe Sizing Calculator Excel Sheet to simplify your calculations.

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📥 Free Download Features

• Flow rate calculation
• Velocity check
• Friction loss estimation
• Pipe diameter selection

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⚙️ What is Pipe Sizing?

Pipe sizing determines the correct diameter of pipes based on:

• Flow rate (LPM)
• Velocity (m/s)
• Pressure drop

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📐 Important Formula

Flow formula:
Q = A × V

Where:

• Q = Flow rate
• A = Area
• V = Velocity

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🧮 Why This Excel Tool is Useful

• No manual calculation
• Instant results
• Suitable for plumbing & HVAC

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🏗️ Applications

• Domestic water systems
• Fire fighting systems
• HVAC chilled water systems

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⚠️ Common Mistakes

• Ignoring velocity limits
• Not checking friction loss
• Using wrong pipe material

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🔗 Internal Links

• Rain Water Harvesting Drawing
• HVAC Duct Calculator
• Pump Head Calculation

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❓ FAQ

Q1: What is ideal velocity in pipes?
Usually 1–2 m/s for water systems.

Q2: Why friction loss matters?
It affects pump performance.