Tube Rotameters

About Tube Rotameters

FLOWTECH Metal Tube Variable Area Flow Meters (Rotameters) are intended for application where high pressure, temperature OR corrosive conditions preclude the use of conventional glass tube. These are all Metal Variable Area type Flowmeter design to measure flow rate of liquids, gases & steam under critical conditions. It consists of a tapered metal tube, an indicating assembly and a float. A magnet encapsuled in float couples with rotating magnets connected to an indicating pointer, thus the movement of the float, is accurately indicated in terms of flowrate.

• Simplified piping and reduced space requirements.
• Permanent magnetic link between metering float and motion position transmitter.
• Precision swaged metering tube.
• Heavy duty welded float and guide construction.
• Guide cartridges easily removable for cleaning
• Provide with Electrical transmitter, flow indicator OR alarm.

FAQ for Tube Rotameters:

How does a tube rotameter work?

The Tube rotameter is functional on the principle of an adaptable area flow measurement.

What are some of the limitations of tube rotameters?

The device is accessible with several advantages, but it also has some limitations, which have been mentioned below;

• Pressure drop: Due to tube constriction, occurrence of pressure drop is possible.
• Limited turndown ratio: It has an inadequate turndown ratio in comparison to other flow meters.
• Sensitivity to alignment: It can be specially fitted in a specific orientation so as to ensure accurate readings. Variations in the installation position can affect the movement of float,
• The device is not apt to be used for the high-viscosity fluids.

What applications are tube rotameters commonly used for?

It has utility in various industries, including water treatment, chemical processing, pharmaceutical industry chemicals and solvents. This is also apt for measuring the flow rates of gases and liquids in the production processes of HVAC system, Laboratory research and Oil and gas industry.

Precise Flow Measurement Made Simple

Tube Rotameters offer a reliable and user-friendly way to measure the flow rates of clear liquids and gases across a variety of sectors, including chemical processing, water treatment, pharmaceutical manufacturing, and research laboratories. Designed for vertical inline installation, each unit features fine graduation markings for easy readability and is calibrated for optimal performance according to user specifications. Optional accessories like alarms and covers further enhance safety and usability.


Robust Construction for Demanding Applications

Manufactured with materials such as borosilicate glass and options for wetted parts in SS 316, PTFE, or PVC, these rotameters withstand a wide range of process conditions, including temperatures from -20C to +120C and pressures up to 10 kg/cm. The protection class of IP55 ensures resistance against dust and water ingress, while optional shields and covers guard against mechanical damage, making them suitable for rigorous, industrial environments.