# Pressure drop calculators

## Calculator's features:

- Calculate pressure drop for known flow rate
- Calculate flow rate for known pressure drop
- Darcy friction coefficient calculation
- Minor losses calculation
- Laminar and turbulent flow
- Flow velocity calculation

- Applicable for liquids and low pressure drop gas flow.
- Circular and rectangle closed pipe,
- Incompressible flow ρ=const.,
- Darcy equation based,

- Applicable for any perfect gas in a long and closed round pipe.
- Compressible ρ≠const.
- Isothermal T=const.

- Flow of air in a closed round pipe.
- Compressible flow ρ≠const.
- Isothermal flow T=const.

- Applicable for natural gas lines over 1 bar, longer than 1 m,
- Renouard equation based.

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Calculators for **pressure differential devices**

## Calculator's features:

- Calculate flow rate in pipe based on the created pressure drop,
- For liquids and perfect gases,
- Flow velocity calculation,
- Convert between volume and mass flow rate,
- Reynolds number calculation,
- Discharge coefficient calculation.