In line Flow Meters

What is an inline flow meter?

In line flow meter is a flow meter with the function of displaying flow rate on-site. The sensor of the flow meter is installed on the fluid pipe. Digital display or pointer shows the flow rate on the spot.

In-line flowmeters could be digital and mechanical flow meters. Common in-line flowmeters include turbine flowmeters, electromagnetic flowmeters, and ultrasonic flowmeters. With stainless steel material, analog, and 4-20mA output, in-line flow meters can measure and control inline flow.

Features of In-line Flow Meters

  • Local LCD display flow rate.
  • Signal output: analog, 4-20mA, pulse, and so on.
  • Liquid, Gas pipe flow measurement.
  • Special materials can be selected depending on the working conditions.
    Such as PTFE
  • Remote type is available.

You may like: Digital Flow Meters Guide| Liquid and Gas

After understanding what an Inline flow meter is, you may want to know which flow meter is the most suitable?

Choose the most suitable Inline flow meter

Different measurement situations require different inline flowmeters.

Simply put, we can consider the following aspects:

  • Installation form
  • Fluid medium
  • Measuring principle
  • Application

In line flow meter

In line flow meter is currently the mainstream measuring instrument in flow measurement.

In line flow meter is an in-situ display flow meter, also called integrated flow meter. The display head and sensor are integrated.

At present, all integrated flow meters belong to the In line flow meter. They all have in-situ display function. For example, the split-type flow meter does not have the in-situ display function, and its meter and sensor are connected by conduction.

What are the advantages of in line flow meter in the flow measurement process?

In some measurements with a control system, the advantage of In line flow meter is not great. Because the flow can be monitored through the PLC system.

In working conditions without a PLC system, In line flow meter can show its advantages. It can display cumulative flow and instantaneous flow online.

Remote flowmeter

Remote flowmeter is also called split flowmeter. Compared with the online flowmeter, the remote flowmeter means that the sensor and the display are installed separately.

For example, the flow sensor is installed in the underground water pipe, but for the convenience of viewing the data, the display is installed on the ground. The sensor and the display can be connected via a signal cable.

Extended reading: Totalizing flow meter water

Insertion flow meter

What is an insertion flow meter? An insertion flow meter is a flow meter installed in insertion mode. Make a small hole in the pipe under test, and then insert the probe part of the flowmeter into the pipe. easy installation. It is suitable for measuring the flow of large-diameter pipelines.

The insertion flow meter that has been promoted and used has various forms. According to the working principle of the insertion flow meter detection head, it can be divided into insertion turbine, insertion vortex, insertion electromagnetic, uniform velocity tube and thermal flow meter, etc.

Extended reading: Ultrasonic Insertion Flow Meter for Lined/Large Pipes

Clamp-on flow meter

Clamp-on flow meter only needs to paste the external clamp sensor on the surface of the pipe to complete the flow measurement of various liquids.

Currently, the Clamp-on flow meter is only an ultrasonic flow sensor. It does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation.

Extended Reading: Inline Ultrasonic Flow Meter

Inline water flow meter

Commonly used inline flow meters to measure water flow include electromagnetic, ultrasonic, turbine, etc.

Digital water flow meters|Water flow meter types

In line fuel flow meter

What is a fuel flow meter? The fuel flow meter is an instrument that can monitor fuel flow. Industrial Fuel is an important energy source. For example, diesel, marine fuel, gasoline, etc.

Inline oil flow meter

Sino-Inst offers Turbine, Mass flow, Oval gear, V-cone, Target, and Orifice flow meters for inline hydraulic oil flow. Features like: bidirectional, high pressure, analog, can be customized as customer need.

Inline gas flow meter

Digital gas flow meters are flow meters used to monitor the gas flow rate or mass. Digital gas flow meters are designed to measure different types of gases. Like Air, N2, O2, CO2, and more.

In line flow meter for compressed air

The compressed air flow meter is an upgraded and improved gas vortex flow meter. The Karman vortex airflow sensor is researched and produced according to the Karman vortex principle.

In line Magnetic Flow Meters

Sino-Inst is one of the reliable Magnetic flow meter manufacturers and suppliers in China. Magnetic flow meters apply for wastewater flow rate measurement.

Sino-Inst can offer stainless steel magnetic flow meters, both the Pipeline and plug-in style. Of course, Sino-Inst can offer you with the mass flow meters and other flow meters. Read More 

In line Ultrasonic Flow Meters

Ultrasonic flow meters, using the ultrasonic principle, measure the velocity of flow. We can use a different type of ultrasonic flow meters, like Portable ultrasonic flow meter, Handheld ultrasonic flow meter, Clamp-on Ultrasonic Gas Flow Meter. For airflow, natural gas, Read More

Extended reading: Flow Measurement of Nitrogen

In line Turbine Flow Meters

Turbine flow meters are flow sensors work for the inline liquids. Turbine flow meters are cost-effective and offer reliable, measurement with minimal flow meter maintenance required. Turbine flow meters measure the velocity of liquids, gases, and vapors in pipes, such Read More

Inline flow meters are mainly used for industrial pipeline fluid measurement. It can also be used for residential water pipes.

Residential inline water flow meter

Ultrasonic water meter is a new small residential water meter. Residential ultrasonic water meters are equipped with line water meters, and wireless water meters can be customized.

T3-1-2-H residential ultrasonic water meter adopts ultrasonic time difference measurement technology. A highly integrated, developed according to ISO4064-1:2005, GB/T778.1-2007, and other standards. A new generation of fully digital water meters with the advantages of high turndown ratio, ultra-low starting flow, and rich communication methods. IP68 protection level.

Industrial Inline flow meters have a wide range of applications. Need to select the appropriate type according to the measurement medium.

For example, in the food industry, hygienic electromagnetic flowmeters can be used to measure beer and milk. Or sanitary turbine flowmeter.

In the wastewater treatment industry, for example, electromagnetic flowmeters can be used to measure corrosive wastewater.

Read More about: Hot Water Flow Meters

Extended reading:
What is the K-factor in a flow meter?
Cryogenic Flow Meters|Liquid Nitrogen-Liquid Oxygen-LNG fluids

Inline Flow Meters can also be used with paperless recorders.

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If you let me answer this question. I would like to divide flow meters into two categories: mass flow meters and volumetric flow meters.

Of course, it can also be divided according to the measurement medium. There are two types of flow meters for measuring gas and measuring liquid.

Perhaps, we can also divide into closed pipeline measurement and open channel measurement according to the situation of the pipeline.

Finally, we may also be able to divide into contact and non-contact measurements according to the contact situation of the medium.

If you want to divide the flow meter into three categories. I think it can be divided into volumetric flowmeters, mass flowmeters, and velocity flowmeters.

Extended Reading: Petroleum Flow Meter

There are differences in the allowable error of the measurement accuracy of the commonly used flowmeters, as follows.

  • Mass flow meter 0.05%;
  • Positive displacement flowmeter 0.25~0.5;
  • Electromagnetic flowmeter 0.25~1.0;
  • Turbine flowmeter 0.15~0.5;
  • Vortex flowmeter 0.15;
  • Ultrasonic flowmeter 0.10 (multi-channel is better than 0.5);
  • Orifice plate, micro cone, uniform velocity tube flowmeter 1 to 1.5, nozzle 0.10.

Relatively speaking, mass flow meters have the highest accuracy.

Both the accuracy and error of a flowmeter characterize the ability of a measuring instrument to approximate the actual true value of the measurement results. The higher the accuracy of the instrument, the closer the measured value is to the actual true value. The higher the accuracy, the smaller the error.

Many people feel that the flow meter (flow meter) is the same as the water meter to measure water, but it has the essence but different. However, a water meter is a type of flow meter (flow meter). Let’s talk about the difference between the two of them.

The flow meter (flow meter) can measure the instantaneous flow, and can understand the usage of each site. The water meter mainly has the accumulation function, and the instantaneous flow Q cannot be seen.

A water meter is also a type of flowmeter. It is a volumetric measurement with an accumulation function. The household water meter is a small flow measurement flow meter. It is not resistant to high pressure and high temperature, and cannot output linear signals. Unable to participate in the automation control of modern industry. Basically only metering water, certainly not for metering gas. Some liquid media also cannot be applied.

To put it simply, water meters are generally only used to measure water and have a wide range. Flow meters can measure liquids, gases, vapors, or two-phase.

The installation positions of different flowmeters have different requirements for straight pipe sections.

Liquid flow meters are generally better installed at low places. Because this can make the part of the liquid passing through the flow meter reach the state of full pipe.

Gas flow meters are generally installed high in the pipeline.

And almost all flow meters require a certain length of straight pipe. Different flow meters require different straight pipe lengths.

If there is anything you want to know, please contact us.

The general measurement is to use an electromagnetic flowmeter.

Magnetic flowmeters use the principle of Faraday’s Law of Electromagnetic Induction to measure the flow rate of liquid in a pipe. In the magnetic flowmeter pipe parts, a magnetic field is generated and channeled into the liquid flowing through the pipe.

As fluid flows through the magnetic field, conductive particles in the fluid create changes. This variation is used to measure and calculate the velocity of water flow through the pipe. When the fluid moves faster, more voltage is generated. The electronic transmitter processes the voltage signal to determine the liquid flow.

Read more about Digital Water Flow Meters

At present, the flowmeter products used for natural gas flow measurement roughly include: gas waist wheel flowmeter, gas turbine flowmeter, precession vortex flowmeter, thermal mass flowmeter, vortex flowmeter, ultrasonic flowmeter and orifice flowmeter Wait. Let’s make a simple comparison on the use of these flow meters.

Read more about: Natural Gas Flow Meter Types

Extended reading: Cryogenic Flow Meters | Liquid Nitrogen-Liquid Oxygen

Sino-Inst offers broad flow control and measurement portfolios in the industry. Sino-Instrument provides technology to measure and control whatever moves through a pipe or pipeline. Including water, air, steam, oil, other liquids and gases.

Customers can rely on Sino-Inst for application specific solutions, that deliver accurate, timely and dependable flow data and control essential,for product quality, cost control, safer operations, and regulatory compliance.

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This entry was posted in Flow Measurement Solutions, Applications, Blog, Technologies by KimGuo11. Bookmark the permalink.

About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.