What is 4-20ma Flow Meter?

4-20mA Flow Meters are those flow meters with 4-20mA current signal output function. The signal current of general instruments is 4-20mA. This means that the minimum current is 4mA and the maximum current is 20mA. Our commonly used electromagnetic flowmeters, turbine flowmeters, mass flowmeters, gas flowmeters, etc. all have the function of 4-20mA signal output.

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What is a 4-20mA Output？

The signal current of general instruments is 4-20mA, which means that the minimum current is 4mA and the maximum current is 20mA.

The industry generally needs to measure various non-electrical physical quantities. For example, temperature, pressure, speed, angle, etc. They all need to be converted into analog electrical signals before they can be transmitted to the control room or display equipment hundreds of meters away. This device that converts physical quantities into electrical signals is called a transmitter. The most widely used in the industry is to use 4-20mA current to transmit analog quantities.

In the industrial field, to complete signal conditioning and long-term transmission, the following problems will occur:

1. Since the transmitted signal is a voltage signal, the transmission cable will be interfered by noise;
2. The distributed resistance of the transmission cable will produce a voltage drop;
3. How to provide the working voltage of the instrumentation amplifier in the field is also a problem.

In order to solve the above problems and avoid the influence of related noise, we will use current to transmit signals. Because the current is not sensitive to noise.

The 4-20mA current loop uses 4mA to represent the zero signal. Use 20mA to represent the full scale of the signal. The signals lower than 4mA and higher than 20mA are used for various fault alarms.

Why Choose 4-20mA Instead of 0-20mA for the Flowmeter?

Many people will certainly ask: Why choose 4-20mA instead of 0-20mA?
Very simple, if 0 is the smallest, then the open circuit fault will not be detected!

So, why is it 4mA?
During normal operation, the current signal will not be lower than 4mA.
When the transmission cable is broken due to a fault, the loop current drops to zero. 2mA is often used as the disconnection alarm value.
There are two reasons. One reason is to avoid interference. Another reason is that a two-wire system is used at 4-20mA. That is, the two wires are the signal wires. It is also a power cord. And 4mA is to provide the static working current of the circuit to the sensor.

Extended Reading: Mechanical flow meter for diesel

How Does This 4-20mA Control Loop Work?

4-20mA constitutes the basic elements:

• 24V power supply
• The transmitter controls the 4-20mA signal to change in proportion to the process variable
• The indicator converts the 4-20mA signal into the corresponding process variable
• Indicator or controller I/O input resistance 250Ω shunt generates 1-5V input signal (Ohm’s law: voltage = current * resistance, 4-20 mA X 250 ohms = 1-5V)

Usually:

1. They convert the temperature signal of the thermocouple or thermal resistance sensor into a 4-20mA signal and then output;
2. The controller then translates 4-20mA into a specific temperature value;
3. Based on this temperature value. The control loop realizes the control of the process terminal control element.

Similarly, the pressure transmitter is in the control loop. Usually used to measure the pressure value of the process medium:

1) The sensor senses pressure. The transmitter converts the signal into 4-20mA signal;
2) The controller then reversely translates the 4-20mA signal into a pressure value;
3) The controller is based on the pressure value. Send instructions to the valve. Control valve opening to realize safety valve control. Ensure that the container does not generate dangerous pressure.

Extended reading: Orifice Plate Flow Meter

Water Flow Meter 4-20ma Output

A Digital Water flow meter is a flow meter that can display the water flow rate, and have the output for the flow rate. Like 4-20mA output, HART, RS 485, and so on. Digital Water Flow Meter is also called Electronic Water Flow Meter. Digital Water Flow Meter is widely used in industrial water and household water measurement. Most of the Sino-Inst flow meters are digital water flow meters. Like the electromagnetic flowmeter, Portable ultrasonic flow meter, Turbine flow meter…..

No matter which WaterFlow Meters you choose. The signal output by WaterFlow Meters, such as 4-20mA. The flow signal can be connected to a paperless recorder. Carry out multi-channel flow signal monitoring.

Read More About: Paperless Recorder Working Principle

Flow Meter with Analog Output

The analog flow meter is a flowmeter with the analog output signal. Analog output is a common function of flow meters. The analog signal is mainly used to output the flow signal to the next control system.

The analog signal refers to the continuous signal of the information parameter in a given range. The characteristic quantity of the information of the analog signal can be transformed into an arbitrary numerical signal in an instant. In the process of transmitting analog signals, the information signals need to be converted into electric wave signals, which are then transmitted through wired or wireless methods.

Analog signal: poor confidentiality, weak anti-interference ability.

Digital signal: strong anti-interference ability and good communication confidentiality.

Read more about Analog Flow Meters.

Turbine Digital Flow Meter

Turbine flow meters are velocity flow meters, also called impeller flow meters. Can be used to measure the instantaneous flow and cumulative flow of liquids and gases.

Turbine flowmeters are widely used in flow measurement: petroleum, organic liquids, inorganic liquids, liquefied gas, natural gas, coal gas, and cryogenic fluids. Turbine flowmeter signals can be divided into pulse signals or current signals (4-20mA). It is suitable for use with secondary display, PLC, DCS, and other computer control systems.

Turbine Flow Meter reference price: USD 200-1700/pc.

4-20ma Air Flow Meter

A digital air flow meter refers to a flow meter that can accurately measure air or compressed air inline. Industrial Digital air flow meters can be divided into mass flow meters or volume flow meters.

Read more about Digital air flow meters.

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Looking for 4-20ma flow meters? The flow meter is a fast, accurate, and reliable permanent linear motion. In Sino-Inst, you can also find other good deals on measurement and analysis instruments and tools! Keep an eye out for promotions and deals, so you get a big saving of 4 20ma flow meters. You can shop for 4 20ma flow meters at low prices.

Extended reading: How to convert a 4-20mA to 0-10V /1-5V signal?

There is a wide variety of 4-20ma flow meter items you can buy, such as turbine water flow meters, ultrasonic flowmeters. Common materials used for 4 20ma flow meters are stainless steel and carbon steel.

Sino-Inst offers over 50 4-20ma flow meters for flow measurement. About 50% of these are differential pressure flow meters, 40% are the liquid flow sensor, and 20% are Ultrasonic Level Transmitter and mass flow meters.

A wide variety of flow meters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of flow measurement instrumentation, located in China.

Request a Quote

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.

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what is a venturi tube?

The Venturi Tube is a tubular device commonly used to measure fluid flow rates. It is based on a physical principle, the Venturi effect. This effect states that as a fluid passes through a narrow section of a pipe, its velocity increases and its pressure decreases. The design of the Venturi Tube takes advantage of this principle, with a gradually narrowing entrance and a subsequently expanding exit. As fluid enters the narrowed portion of the venturi, it accelerates, causing the pressure to decrease. This change in pressure can be measured by pressure measuring points on the pipe wall and calculated to determine the flow rate of the fluid.

Venturi Tube is a common flow measurement tool in industry. It is widely used in the measurement of various fluids because of its simple structure, good stability and high accuracy.

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Venturi Effect

The Venturi effect describes the increase in velocity and decrease in pressure as a fluid passes through a narrow section of a pipe. When fluid enters a narrow section of a pipe, the flow rate increases and the corresponding pressure decreases. This effect was discovered by Italian physicist Giovanni Battista Venturi, hence its name.

This effect can be explained by Bernoulli’s equation. This equation is a fundamental law of fluid dynamics. Show that in an incompressible fluid without viscosity, the energy of the fluid along the streamline is conserved.

P + 1/2 ρ v^2 + ρ gh = constant

P represents the pressure of the fluid
ρ is the density of the fluid
v is the velocity of the fluid
g is the acceleration due to gravity
h is the height of the fluid

In practical applications, the Venturi effect allows the venturi tube to be used to measure the velocity of a fluid in a pipe, since the velocity of the fluid is proportional to the pressure difference in the pipe.

The Venturi effect is not only used in measurement tools, but is also widely used in many fields such as aircraft wing design, chimney airflow design, and underwater piping systems. It is a very important principle in fluid mechanics and has a profound impact on many branches of engineering and physics.

Venturi tube working principle

The venturi tube is composed of the following parts:

1. Entrance section: a short cylindrical section with a diameter of D;
2. Contracting section: the shape is a tapered tube, the cone angle is about 21°±2°;
3. Throat: a short straight pipe section with a diameter of about 1/3～1/4D and a length equal to the pipe diameter;
4. Diffusion section: Conical tube with a cone angle of 8°～15°. There is a pressure measuring ring at 0.25-0.75D from the end of the inlet section, with at least 4 pressure measuring holes on it, and the pressure ring leads to the pressure gauge.

In addition, in the center of the throat, there is also a multi-channel pressure measuring ring leading to the pressure gauge. The pressure difference between the inlet section and the smallest section (that is, the throat section) can be measured through the scale of the pressure gauge or the automatic recorder.

Suppose the average velocity, average pressure, and cross-sectional area at the entrance section and the throat are v1, p1, S1, and v2, p2, S2; the fluid density is ρ.

Applying Bernoulli’s theorem and the continuity equation and noting that the streamlines of average motion are of the same height, we can get:

The formula for calculating the flow rate Q can be obtained:

After knowing ρ, S1, S2 and measuring p1-p2, the flow rate Q can be obtained according to the above formula.

The main advantage of the venturi tube is its simplicity of installation. Secondly, due to its diffusion section, the fluid gradually decelerates, reducing the turbulence (see turbulence). Therefore, the pressure head loss is small, no more than 10-20% of the pressure difference between the inlet and the throat.

Venturi tube design

According to the manufacturing process and use, the venturi is divided into standard venturi, general venturi, venturi flow tube, small diameter venturi, rectangular venturi, and other structures. The detailed structure is as follows:

Structure type:

The standard (classic) Venturi tube is composed of an inlet cylindrical section A, a conical contraction section B, a cylindrical throat C, and a conical diffusion section E. The diameter of the cylinder section A is D, and its length is equal to D; the contraction section B is conical and has an included angle of 21º±1º; the throat C is a circular cylinder section with a diameter d, and its length is equal to d; the divergent section E It has a conical shape with a spread angle of 7º～ 15º.

The general-purpose venturi, like the standard venturi, is composed of an inlet cylindrical section A, a conical contraction section B, a cylindrical throat C, and a conical diffusion section E.

The general-purpose venturi adopts the method of changing the contraction angle of the standard venturi and the length of the diffusion section to make it have the advantages of venturi, greatly shortening the length of the body, and effectively reducing the pressure loss.

The Venturi flow tube is also composed of an inlet cylindrical section A, a conical contraction section B, a cylindrical throat C, and a conical diffusion section E. The Venturi flow tube adopts a special pressure method to make it widely used in the flow measurement of dirty media and mixed-phase flow.

The small diameter venturi is composed of an inlet cylindrical section A, a conical contraction section B, a cylindrical throat C, and a conical diffusion section E. The small diameter venturi adopts an integrated mechanical processing method to measure the fluid flow of small diameters. At the same time, it can use a variety of materials to meet the requirements of the on-site working conditions and can meet various connection methods such as welding, flange connection, and threaded connection.

The rectangular venturi is composed of an inlet cylindrical section A, a conical contraction section B, a cylindrical throat C, and a conical diffusion section E. Main technical parameters of rectangular venturi:

• Nominal diameter: DN=1.13×(WH)0.5≤6000mm
• Inlet diameter ratio W/H: 0.5≤W/H≤2.0
• Throat diameter ratio w/h: 0.5≤w/h≤2.0
• Equivalent β value: 0.44≤β=(w/h)0.5/(W/H)0.5≤0.74
• Reynolds number range: 2×105≤ReD≤2×107
• Accuracy: ±1%
• Repeatability: ±1%
• Working pressure: 0～25Mpa
• Working temperature: -100℃～500℃
• Turndown ratio: 1:10

Rectangular venturi is mainly used in power plant air supply and suction, heating furnace air supply, and suction occasions.

Extended reading: Pitot Tube vs Venturi Meter

How does a Venturi tube measure flow?

Using the Venturi Effect to measure flow, the simple steps are as follows:

• Install the venturi: First install the venturi in the pipe where the flow is to be measured.
• Connect the differential pressure sensor:
  • Install a pressure sensor at the wide end and the narrow end of the venturi tube. These sensors measure the pressure difference between the two ends, which is directly related to the fluid velocity.
• Reading the pressure difference:
  • As fluid passes through a venturi, its velocity increases in the narrow section, causing the pressure there to drop. The differential pressure sensor reads the pressure values at the wide end and narrow end and calculates the pressure difference between the two.
• Calculate flow velocity:
  • Use Bernoulli’s equation and continuity equation to calculate the velocity of the fluid. v = sqrt(2(P1 – P2)/ρ). where P1 is the pressure at the wide end, P2 is the pressure at the narrow end, and ρ is the density of the fluid.
• Determine the flow rate:
  • Calculate the flow rate (Q), the formula is: Q = A2 × v. where A2 is the cross-sectional area of the narrow portion of the venturi tube and v is the fluid velocity calculated in the previous step.
• Recording and monitoring: Continuously monitor pressure difference and flow, and record data for analysis or monitoring system status.

Venturi tube flow meter

A Venturi flow meter is a differential pressure flowmeter. The Venturi flow meter is a combination of a Venturi tube, a differential pressure transmitter, and a valve block. It is often used to measure the flow of pressure pipes.

Venturi flow meters are often used to measure the flow of fluids such as air, natural gas, coal gas, and water. It includes three parts: “constriction”, “throat” and “diffusion”. Install on the pipe where the flow rate needs to be measured.

Venturi flowmeter is a new generation of differential pressure flow measuring instruments. The basic measurement principle is a flow measurement method based on the law of conservation of energy-Berlier equation and flows continuity equation.

The throttling process of fluid flowing through the inner venturi tube is basically similar to the throttling process of fluid flowing through a classic venturi tube and an annular orifice plate.

Extended reading: Fluid flow meter types

Venturi flow meters types:

Classic Venturi:

It is applied to the flow measurement of various media and has the characteristics of small permanent pressure loss, the required long and short front and rear straight pipe sections, and long service life.

Casing type venturi:

It is mainly used in the flow measurement and control of various large-caliber and high-pressure or dangerous media in the petrochemical industry.

Venturi nozzle:

It is suitable for the measurement occasions of various media. It has the characteristics of small permanent pressure loss, a short length of the front and rear straight pipes required, and long life. The installation length of the body is shorter than that of the classic venturi.

Extended reading​: What is a flow nozzle?

Read more about: 5 Factors Affecting Pressure Drop

Venturi tube application

Since its development, venturi products have been successfully applied to the measurement of high-humidity natural gas, low-pressure dirty biogas, coke oven gas, gas, steam, hot water, high-temperature hot kerosene, etc., And the practical application range is rapidly expanding.

Besides, the venturi tube has a unique measurement advantage, for measuring conditions such as long straight pipe installation conditions, special high temperature, high pressure, strong corrosive and dirty media, and non-single phase flow measurement.

Of course, in the sewage and wastewater treatment industry, in addition to venturi flowmeters, electromagnetic flowmeters are also the first consideration for many users.
For example, if you need to measure the flow of wastewater in a 2-inch pipe. Then you can refer to Magnetic Flow Meters Guides.

Extended reading: Hot Water Flow Meters Improve Heating-Boiler System

Related blog

Related DP flowmeters

Sino-Inst offers over 50 flow meter products. About 50% of these are differential pressure flow meters (like the Orifice flowmeter), 40% are Magnetic Flow Meters, and 40% are Thermal mass flowmeters.

A wide variety of Annubar flow meter options are available to you, such as free samples, paid samples. 

Sino-Inst is a globally recognized supplier and manufacturer of flow measurement instrumentation, located in China.

The top supplying country is China (Mainland), which supply 100% of the turbine flow meter respectively. Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide.

You can ensure product safety by selecting from certified suppliers, with ISO9001, ISO14001 certification.

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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.

drurylandetheatre.com

You may have heard of flow transmitters and flow meters. Are flow transmitter and flow meter the same? What is the difference and relationship between them before? Should you buy a flow meter or a flow transmitter? What kind of one to buy?

Let us discuss both flow meter and flow transmitters individually to you understand their concepts thoroughly.

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What is a Flow Meter?

A flow meter is an instrument used to measure the flow of fluid in a pipeline or open channel. It measures the flow of fluids, liquids, or gases through a closed transmission system.

Flow meters are divided into differential pressure flow meters, rotor flow meters, throttling flow meters, slit flow meters, volumetric flow meters, electromagnetic flow meters, and ultrasonic flow meters. Classified by medium: liquid flow meter and gas flow meter.

Extended reading: Ultrasonic Flow Meters Types & Technical Guide

These different flow meters have different functional principles. For example, an orifice flowmeter calculates the fluid flow at the entrance cross-section of a narrow, restricted opening (called an orifice) and the exit cross-section of the orifice. On the other hand, a rotameter-type flow meter can measure the volume flow inside multiple tubes placed in different areas of the transfer tube.

The above is a general introduction to the flowmeter. simply put. We can think that the flow meter is composed of two parts: the sensor and the signal processor. This structure can be installed separately or as a whole.
So, the signal processing part here is the Flow Transmitter we are going to talk about next.

Extended reading: How does a rotameter work

What is a Flow Transmitter?

The flow transmitter is an important part of the flowmeter. It is a flow meter with an integrated circuit as its operating system. In the flow transmitter, the flow measurement activity is executed by the electronic circuit after receiving the command from the operator. Since flow transmitters have electronic circuits, these devices can be used to control and monitor fluid flow.

Read more about: Flow Meters With GPM Units

For example, the following picture group is the flow transmitter of our common electromagnetic flowmeter.

Guess you like: What is Reynolds number?

Working Principle of Flow Transmitters

A transmitter (transmitter) is a converter that converts the output signal of the sensor into a signal that can be recognized by the controller. It can also convert the non-electricity input from the sensor into an electrical signal and amplify the signal source for remote measurement and control.

There are many types of transmitters. The transmitters used in industrial control instruments mainly include temperature transmitters, pressure transmitters, flow transmitters, current transmitters, voltage transmitters, and so on. Among various types of instruments, transmitters have the most extensive and common applications.

Therefore, the flow transmitter converts the flow signal collected from the flow sensor into an electrical signal. The various electrical signals that have been converted are used to facilitate the reception and transmission of other instruments or control devices. Through the electronic circuit again. Unify the electrical signals from the sensors. Converted to standard 4-20MA.

For example:
The mass flow meter directly measures the mass value. The flow transmitter displays the volume value. This is the biggest difference! The output of the flow transmitter is 4~20MA, and the pressure can be directly displayed by connecting to the secondary meter.

Read more about What is a Flow Transmitter? on Instrumentation Forum.

Extended reading: rotameter applications

Differences between the Flow Meter and Flow Transmitter

The following are some important differences between flow transmitters and flow meters.

Extended Reading: Magnetic Battery Operated Flow Meter

Flow transmitter types

In fact, there is no strict classification of flow transmitters. The flow transmitter can be configured according to the customer’s functional requirements.
For example, customers need a digital display, 4-20mA output, integrated.
Or, the customer needs battery power. Digital display. No signal output.

Extended reading: Gas Rotameter Tips

Extended Reading: What Is Metal Tube Flow Meter? Rotameter Manufacturer

Flow transmitter calculation

The calibration methods and calibration requirements of flow transmitters with different functions are different. It is recommended that you check with the manufacturer before calibrating the flow transmitter. For example, the flow transmitter supplied by Sino-Inst has a key calibration function. Simple and easy to operate.

For another example, there are two calibration methods for common electromagnetic flowmeters. You may be reading: Magnetic flow meter calibration

Extended reading: Make Ultrasonic Open Channel Flow Meter Work for You

Applications of Flow Transmitters

Flow transmitters are commonly used in various industries, including but not limited to:

• Food & Beverage
• Industrial production process
• Environmental protection project: Water and wastewater
• Pulp & paper
• Pharmaceutical
• Biotechnology
• Oil & Gas
• Energy metering
• Metals and Mining
• Marine
• Power & Utilities
• Transportation
• Chemical
• Textile
• Building Automation
• Micro Electronics
• Biotechnology
• Marine meteorology, rivers and lakes

Extended reading: Food grade flow meters for Food & Beverage industry

Extended reading: High Pressure Rotameter for Liquids/gas-Upto 25 Mpa

Related blogs

Sino-Inst offers over 50 Flow Transmitters, with the Best Price.

A wide variety of Flow Transmitters options are available to you, such as free samples, paid samples.

About 13% of these are magnetic flow meters, 14% are Insertion Magnetic Flow Meter, 25% are Venturi flow meters, 13% are ultrasonic flow meters, and others are Liquid Turbine Flow Meters.

Sino-Inst is a Flow Transmitter supplier, located in China. Flow Transmitter s products are most popular in North America, Mid East, and Eastern Europe. The United States, and India, which export 99%, 1%, and 1% of Flow transmitters respectively.

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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.

drurylandetheatre.com

Molasses flow meters are a type of flow meter used for molasses flow measurement. Molasses are common high viscosity liquids. So Molasses flow meters are flow meters that can be used to measure various high viscosity liquids. Can common electromagnetic flowmeters be used to measure high viscosity liquids? What about the Coriolis mass flow meter?

Perhaps after the introduction of this article, you will understand.

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Properties of molasses

What is molasses:

Molasses is a viscous, dark brown, semi-liquid object. It mainly contains sucrose. The content of pantothenic acid in sucrose is higher, reaching 37mg/kg. In addition, the biotin content is also considerable. It is easy to be mixed into soybean molasses and molasses fermentation liquid.

Molasses characteristics

1. Molasses is a brownish yellow viscous liquid, with the fragrance of yeast and the sweetness of molasses;
2. The content of CP is high, 3-6%;
3. High sugar content, generally 42-50%. Low energy density, good taste. Fast digestion and absorption, and the price is lower than corn (2346, 2.00, 0.09%).
4. Contain vitamins, minerals, bacterial proteins, nucleic acids, surface active substances and growth-promoting factors (biologically active substances) and other ingredients.
5. Anti-acid and alkali, anti-oxidation, strong chelating ability to divalent cations. It can form organic chelating trace elements with metal ions. Promote the absorption and utilization of minerals by livestock and poultry.

The above is a detailed introduction to what molasses is.

Choosing right molasses flow meters

For the properties of molasses. There are 4 types of flow meters that can be used as molasses flow meters.

Electromagnetic flowmeter to measure molasses

The electromagnetic flowmeter is a flow measuring instrument. In the working conditions that require flow measurement, electromagnetic flowmeters are inseparable.

When measuring the flow of low-viscosity and high-viscosity liquids, many people think of electromagnetic flowmeters. In fact, it is right, although I dare not say that the electromagnetic flowmeter is omnipotent. But almost all conductive liquids can be solved by electromagnetic flowmeters.

For diluted molasses. Good liquidity. It can be measured with an electromagnetic flowmeter.

Extended reading: Sludge flow meter for sewage treatment return activated sludge system

Spur Gear Flowmeter to measure molasses

Spur Gear Flowmeter is our brand new product. Measure small flow rates. As low as 0.01L/min.

The gear flow meter is a common positive displacement flow meter. The gear flow sensor has built-in double gears to operate. The volume of the medium is calculated by the volume of the gear. The flow rate of the small fluid medium is measured.

• It can measure fluids with a viscosity of up to 10000 Pa.s.
• The lowest flow rate can be measured 0.6L/H. That is 0.0026 GPM.

Gear flow meters can be used for resin and glue flow measurement. Flow measurement of hydraulic oil, lubricating oil, and grease. Maltose, syrup. Fuel oil flow measurement. Flow measurement of ink and asphalt. Flow measurement of liquid nitrogen, freezing liquid, and solvent. Edible oil, fish oil, and food filling measurement. Chemical and anti-corrosion requirements fluid measurement. A fluid quantitative control system, etc.

Read more about Gear flow meter for Microflow

Oval Gear Flowmeter to measure molasses

If the flow rate of molasses is large, how to measure the flow rate of the liquid with high viscosity?

Oval gear flowmeter is a positive displacement flowmeter, also known as displacement flowmeter. It is a type of flowmeter with high measurement accuracy among flow meters, and it is very good at measuring liquids with high viscosity.

The oval gear flowmeter can measure liquids up to Viscosity: 1000-2000mPa.s.

The measurement of the oval gear flowmeter has nothing to do with the flow state of the fluid. The higher the viscosity of the medium, the smaller the leakage from the gear and the metering gap. Therefore, the higher the viscosity, the more advantageous it is for measurement.
Measurable medium: fuel, diesel, gasoline, heat transfer oil, hydraulic oil, kerosene, tar, petroleum, crude oil, asphalt, resin, and other liquids. Especially suitable for the measurement of high viscosity liquids.

Mass Flowmeter to measure molasses

Coriolis mass flowmeter has the characteristics of high measurement accuracy, good stability, and easy operation. It is an ideal instrument for measuring the flow of high-viscosity media such as high temperature, high viscosity, and easy crystallization.

The flow and temperature of the high-viscosity medium form a cascade control system. Install an automatic regulating valve on the inlet pipe to automatically cut off and adjust the size of the oil volume according to the reaction temperature. Ensure a fast response state and reduce pure lag time.

After using the mass flowmeter, the flow of the high-viscosity medium is uniform and stable, which reduces the labor intensity of the operators. The pure lag time is shortened, and the quality of the product is guaranteed. Improved economic efficiency.

Extended reading: U-series Liquid Mass Flow Meter | Liquid-slurry flow measure

Related blogs:

Sino-Inst, Manufacturer for Molasses Flow Meters-High Viscosity Liquids Solution

Sino-Inst’s Molasses Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.

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.

drurylandetheatre.com