Advantages of Vortex Flowmeter:

• Low installation cost (no impulse tubing or valve manifold needed)

• Suitable for liquids, gases, and steam

• Not significantly affected by pressure, temperature, or viscosity

• No moving parts – low maintenance

• Minimal pressure loss

• Easy to install and set up

Disadvantages of Vortex Flowmeter:

• Not suitable for viscous fluids at low flow rates – vortex formation is reduced.

• High flow velocities can cause a large pressure drop due to the bluff body.

• Liquid vaporization can damage the vortex sensor – needs careful handling.

Advantages:

• Very accurate for steady, low flow of liquids and gases

• Common in water measurement for commercial/industrial buildings

• Same size as pipe – low pressure loss

Disadvantages:

• Only for clean fluids

• Bearings need regular maintenance

• Costly

• Sudden high flow can damage the rotor due to overspeed

• Elliptical inlet with a sharp throat.

• Suitable for high-velocity, erosive flows.

• Advantages:

  • Lower pressure loss than venturi.

  • Handles non-viscous, high-speed fluids.

• Disadvantages:

  • Costly (more than orifice, less than venturi).

  • Less pressure recovery than venturi.

• Works on the principle of Bernoulli’s Equation.

• Measures flow by detecting pressure drop (ΔP) across a restriction in the pipe.

• As fluid flows through an obstruction, velocity increases, and pressure decreases.

• Flow rate equation:

  q=KΔPq