Applications for a Turbine Flow Meter

Turbine Flow Meter Overview:

A turbine flow meter is a volume sensing device. As liquid or gas passes through the turbine housing, it causes the freely suspended turbine blades to rotate. The velocity of the turbine rotor is directly proportional to the velocity of the fluid passing through the flow meter.

The external pickoff mounted on the body of the flow meter, senses each rotor blade passing, causing the sensor to generate a frequency output. The frequency is directly proportional to the volume of the liquid or gas.

Either a magnetic or modulated carrier (RF) pickup can be used to sense the rotational speed of the turbine rotor.

Depending on your flow meter application, there are many types of turbine flow meters to choose from. And after understanding the application several factors come into effect when choosing a flow meter, such as:

  • Fluid Type
  • Viscosity
  • Connection
  • Pipe Sizing
  • Process Temperature (min & max)
  • Flow Range (min & max)
  • Pressure Range (min & max)
  • Accuracy Range
  • Specific Application

If you need volumetric total flow and/or flow rate measurement, a turbine flow meter is the ideal device. Turbine flow meters are used in a wide variety of liquid and gas flow sensing applications. They can be built to endure high pressure, and high and low temperatures. They offer a high turn-down with minimum uncertainty and excellent repeatability. Turbine flowmeters are also simple to install and maintain only requiring periodic recalibration and service.


Accuracy is generally expressed as a percentage of true volume, measuring how close the instrument indicates actual flow.

Repeatability is determined on how well the flow meter can indicate the same reading whenever the same flow conditions exist. It also ensures quality measurement of fluids over a wide range of flow rates, temperatures, compositions and viscosities.

Depending on the type of turbine flow meter, the specifications vary.

Turbine Meter – (FM Series)
Tangential Turbine Flowmeter – (FMT Series) capable of measuring extremely low flow rates.
Insertion Turbine Flow Meter – (FMP Series) used economically usually in pipes 6” and larger in diameter

Liquid Service
Flow Range: 0.03 – 15,000 GPM

±0.5% Linearity over Normal Range 10:1 Turndown
±0.05% Repeatability
Sizes: 1/4″ to 72″
Gas Service
Flow Range: 0.25 – 1500 ACFM

±0.1% Linearity over Normal Range 10:1 Turndown
±1% Repeatability
Sizes: 1/4″ to 72″


  • Oil & Gas
    • Water injection
    • Test and production separators
    • Disposal wells
    • Hydraulic fracturing
    • Chemical injection
    • Natural gas pipelines
  • Aerospace/Defense
    • Engine Testing
    • Fuel flow measurement
    • Shipboard reverse osmosis systems
    • Monitor fuel supply to ship engines
  • Pharma-Bio Tech, Food & Beverage
    • Sanitary measurement
    • Pill coating
  • Power Generation
    • Custody transfer
  • Industrial & Municipal
    • Building automation
    • HVAC
    • Water metering
  • Cryogenics
    • Liquids measurement for plant applications and truck deliveries

The Important Role of A Field Indicator

Field Indicator | FlowmetricsFlowmeters are an essential tool in a number of industries throughout the country, with chemical, food, aerospace and pharmaceutical companies relying on them to function. In order to determine the chemical make-up and the flow-rate, it is essential that a flowmeter is used to provide accurate recordings. Magnetic particle testing is an integral part of the flowmeter, making a field indicator a very significant part of this piece of equipment. In order to understand the effectiveness of a flowmeter, once must fully understand the role of the field indicator and how this important component benefits your business.


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Best Rotameter Designs

Rotameter | Flowmetrics    

Rotameters, also referred to as variable area flow meters, are widely used to measure gas and liquid flow. The basic principle of rotameter design includes a float that rotates as it is pushed by the flow. The rotation speed of the float indicates the rate of the flow. With today’s new technology, the basic rotameter has evolved its capabilities to provide highly precise flow rate measurements and to withstand a variety of extreme temperature and pressure conditions.

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What Is the Role of the Field Indicator in Your Flow Meter?

Field Indicator | Flowmetrics

Flow meters have become a necessary tool throughout a range of industries and are integral to many companies in the industrial, chemical, energy, scientific laboratory and aerospace sectors. Understanding chemical make up and flow rates are essential to maintaining efficient and safe operations across industries. Magnetic particle testing can be an important component in particular flow meter designs, and a field indicator is a major factor in the functioning of any magnetically based system. Understanding the role and types of field indicators is critical to understanding the overall effectiveness of your magnetic flow meter.

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Upgrade to Radio-Frequency Quadrupole Linac

Upgrade to Radio-Frequency Quadrupole Linac | Flowmetrics

After a successful test of the Radio-Frequency Quadrupole Linac, RFQ, engineers and physicists from Lawrence Berkeley National Laboratory will be upgrading this superconducting linear accelerator. On its first trial run the RFQ accepted nearly 100% of the source beam without failure, a remarkable feat with so many complex control systems.

This upgrade plans to adapt the front end of the accelerator producing high-intensity proton beams for experiments.

The lab’s current RFQ, which sits at the beginning of the laboratory’s accelerator chain, accelerates a negative hydrogen ion beam to 0.75 million electronvolts, or MeV. The new RFQ, which is longer, accelerates a beam to 2.1 MeV, nearly three times the energy. Transported beam current, and therefore power, is the key improvement with the new RFQ. The current RFQ delivers 54-watt beam power; the new RFQ delivers beam at 21 kilowatts – an increase by a factor of nearly 400.

Innovation on the new upgrade hinges on a waveform cut out of positioning vanes within the accelerator. The waveform is designed with longer distances between peaks and troughs as the beam travels along the accelerator. This lengthening accounts for increased speed as the beam accelerates, keep the time between peaks and troughs equal the entire journey through the RFQ.

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