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Understanding Cone Flow Meters: Principles, Applications, and Advantages

Saeed Lanjekar founder of Burak Metering

Saeed Lanjekar

12 Jun, 2025

6 Minutes

Accurate Flow Measurement with Cone Flow Meters

Nowadays, Cone flow meters are becoming one of the most reliable solutions for flow measurement, They are designed to improve accuracy and reduce turbulence; this advanced differential pressure (DP) flow meter is widely used in demanding applications for consistency and accuracy.

In this blog, we will explore a cone flow meter, its working principle, its advantages and disadvantages, and its applications across various industries. This guide will give you everything you need about cone flow meters.

Key Components of a Cone Flow Meter

Flow Conditioning Cone

The most important part of a cone flow meter is the cone itself, which is placed in the center of the pipe. When the fluid flows around the cone, it determines the flow rate of the fluid.

Inlet and Outlet Sections (Pipe Body)

Simply, you can understand it by its name. The inlet section is where the fluid enters before it reaches the cone, while the outlet section allows the fluid to stabilize after passing the cone. 

The pipe body is made of materials like stainless steel or titanium, which can withstand high pressure and extreme temperatures.

Differential Pressure (DP) Transmitters

The transmitters are the device that converts the readings into electrical signals, which are later displayed.

Nowadays, many modern transmitters are integrated with industrial automation and allow real-time monitoring and remote access to flow data.

Pressure Taps (Upstream & Downstream)

To measure differential pressure accurately, two pressure taps are installed, one before the cone and one after it. These taps capture the pressure readings and send them to the transmitter. Unlike some traditional flow meters, cone flow meters are designed in a way that the pressure taps aren’t affected by turbulence, which results in more stable and precise readings.

Flanges

The flanges hold the cone securely inside the pipe and ensure that it stays in place even under extreme flow conditions. 

Basically, to connect the meter with the piping system, it typically comes with flanges.

Temperature & Pressure Sensors 

Sensors help to measure temperature and pressure. Here, the sensors are used because fluid properties like thickness (viscosity) and weight (density) can change based on temperature or pressure. Changes in these properties can affect the accuracy of the flow.

Ensure accurate and consistent flow measurement with Burak, Our Cone Flow Meters deliver precision and durability. Get in touch today for the perfect flow measurement solution!

 Working Principle of a Cone Flow Meter

cone flow meter working principle

Let’s go through the working principle of the cone flow meter step by step;

1. Flow Enters the Meter

As fluid flows into the meter, it meets a cone, which is placed centrally inside the flowmeter. This cone spreads the fluid evenly, letting it flow smoothly without sudden changes or turbulence. Because of this design, the meter doesn’t need long, straight pipe sections before or after it to work correctly, unlike other flow meters.

2. Cone Creates a Pressure Drop

When the fluid moves past the cone, it is forced to go in a narrow area where its speed increases. According to Bernoulli's principle, an increase in velocity results in a decrease in pressure. This generates a predictable differential pressure, which helps to measure the flow rate

3. Measuring the Pressure Difference

Two pressure taps are strategically placed:

  • Upstream (before the cone) – where the pressure is higher.
  • Downstream (after the cone) – where the pressure is lower.

A differential pressure (DP) transmitter measures the difference between these two points. The greater the pressure drop, the higher the flow rate.

4. Converting Pressure Data into Flow Rate

The meter uses the pressure difference before and after the cone to calculate how much fluid is flowing. It uses Bernoulli’s principle and a standard flow equation to get an accurate measurement. Factors like temperature, pressure, and fluid type are also considered to ensure precise readings.

Applications of Cone Flow Meters 

Oil & Gas Industry: In the oil industry, it is used for measuring crude oil, natural gas, and multiphase flows in pipelines.

Chemical & Petrochemical Industry: Here, in the chemical industry, it measures the flow rate of aggressive, corrosive, and viscous chemicals.

Power Generation: For power generation, it is essential to measure the steam, cooling water, and fuel flow in power plants.

Water & Wastewater Treatment: In water and wastewater treatment, it is used to measure raw water intake, treated water distribution, and wastewater flow.

Aerospace & aviation: Cone flow meters are also used in rocket engines to test fuel measurement.

Food & Beverage Industry: Here, in the Food and beverage industry, it measures the flow of liquids like milk, juices, syrups, and soft drinks in processing plants.

Pharmaceutical & Biotechnology Industry: In pharmaceuticals, it is for precisely measuring the flow of liquid chemicals and gases in drug manufacturing.

Advantages of Cone Flow Meters

  • Cone flow meters provide accurate and precise measurements even in turbulent or changing conditions
  • Unlike orifice plates and Venturi meters, cone flow meters don’t require long upstream and downstream straight pipe sections. This makes them ideal for installation where space is limited.
  • They can handle high pressure, high temperature, and corrosive environments, This makes them the right choice for oil & gas, power plants, and the chemical processing industry
  • Since cone flow meters have no moving parts, they are highly durable and require minimal maintenance.
  • These meters can work effectively with liquid, gas, and steam.

Disadvantages of Cone Flow Meters

  • Due to their specialized design, cone flow meters are more expensive than traditional flow meters, However, their durability and low maintenance can counterbalance the initial cost over time.
  • Cone meters perform well in medium- to high-flow rate applications but may struggle with very low flow rates.
  • Cone flow meters are less common and produced by fewer manufacturers. This can make procurement, servicing, and replacement parts more difficult, especially in remote locations.

Discover the different types of flow meters and how they work. Read more here!

Conclusion

Cone flow meters have proven to be a highly reliable solution for flow measurement across various industries. 

So carefully evaluate your specific requirements, flow conditions, and budget before making a final decision. 

With the right selection and proper installation, cone meters can provide years of reliable and accurate performance.

If you are looking for an accurate flow measurement solution, then Burak can be the right choice. 

We are a leading manufacturer of flowmeters. We provide precision-engineered solutions for your industry needs. Contact us today for expert recommendations and support!

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Saeed Lanjekar founder of Burak Metering

Saeed Lanjekar

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I’m Saeed Lanjekar, founder of Burak Metering. With a background in engineering and technology, I’ve dedicated my career to creating advanced metering solutions that push the boundaries of accuracy and efficiency. At Burak Metering, we’re committed to delivering top-notch technology and driving innovation in the metering industry.

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