Gas Main Size Calculation Master Meter

Gas main size calculation master meter is crucial for designing efficient gas distribution systems. It ensures the right pipe size for the required flow rate, pressure, and temperature.

1. Enter the flow rate (m³/h) in the first input field.
2. Enter the pressure (bar) in the second input field.
3. Enter the temperature (°C) in the third input field.
4. Click the ‘Calculate’ button.

The calculator uses the Weymouth equation: D = (4FR * μ / (π * (P2 – P1) * d))^(1/5), where D is the pipe diameter, F is the friction factor, R is the gas constant, μ is the gas viscosity, P2 is the outlet pressure, P1 is the inlet pressure, and d is the pipe roughness.

Comparison of Pipe Diameters for Different Flow Rates

Comparison of Pipe Diameters for Different Pressures

• Always use the highest quality pipes to minimize roughness.
• Consider future flow rate increases when designing the system.

What is the Weymouth equation?

For more information, see DOE’s guide on gas transmission pipelines and Engineering ToolBox’s natural gas properties.