# Can rotameter measure pressure?

## Can rotameter measure pressure?

To cost-effectively handle larger flow rates of liquids or gases, a rotameter can be installed in a bypass line around an orifice plate. The differential pressure produced by the orifice causes a relatively low flow through the rotameter that can be a measure of flow through the main pipeline.

### What is the difference between flow meter and rotameter?

A rotameter (variable area meter) is a flow meter that measures volumetric flow of liquids and gases. There is no difference between a rotameter and flow meter, and these terms are used interchangeably. The flow rate is then read from either a scale next to the tube or a scale on the tube.

What is rotameter principle?

A Rotameter is a form of variable area flow meter which has a simplistic operation whereby a liquid or gas passes through a tapered tube. When a rotameter is used with a liquid the float rises because of a combination of the velocity head of the fluid and the buoyancy of the liquid.

What is a gas factor?

Gas Deviation Factor is the ratio of molar volume of gas to that of ideal gas. It is the measure of the amount the gas is deviating from its perfect behavior at similar pressure and temperature. It is also known as compressibility factor and compression factor.

## What happens when you increase the pressure on A rotameter?

As you can see from these equations, a pressure increase of 50 psig will more than double the flow rate indicated by the float height in a rotameter. It is important to remember that the working pressure is considered to be at the outlet of the tube when the valve is at the inlet.

### Which is flow rate applies to gas rotameters?

Liquid volumetric flow rate – Liquid volumetric flow rate applies only to those rotameters that are liquid volumetric flow sensors or meters. It is expressed as the range of flow in volume/time. Gas volumetric flow rate – Gas volumetric flow rate applies only to those rotameters that are gas volumetric flow sensors or meters.

How is the accuracy of A rotameter determined?

Rotameter accuracy is dependent on the accuracy of the pressure, temperature and flow control during calibration, and operation. Gilmont flow meters are designed to extremely tight tolerances in materials.

What makes a Gilmont rotameter so accurate?

This is done to reference the operating conditions to those at calibration of the rotameter. Rotameter accuracy is dependent on the accuracy of the pressure, temperature and flow control during calibration, and operation. Gilmont flow meters are designed to extremely tight tolerances in materials.