5 Industrial Propane Tank Level Indicators

Propane tank level indicator is also called propane tank gauge level indicator, or propane tank level gauge. What kind of level gauge is used for Industrial propane level measurement?

Industrial Propane Tank Level Indicators for Industrial Tank Level Measurement

Propane is a gas that can be liquefied. Chemical formula CHURCH, colorless, liquefiable gas. Slightly soluble in water, soluble in ethanol and ether.
Common Industrial Propane Tank Level Indicators for Industrial Tank Level Measurement include radar level sensor; magnetostrictive level sensor; float level gauge; magnetic flap level gauge; ultrasonic level gauge.

Sino-Inst offers a variety of  Level Transmitters for level measurement. If you have any questions, please contact our sales engineers.

Featured Propane Tank Level Indicators

Read more about 7 Level Senors for Tank Level Measurement

How to Measure Propane Tank Level

Radar level transmitters use radar technology to perform a non-contact continuous level measurement. The radar level indicator converts the level into an electrical signal. The level signal output can then be utilized by other instrumentation to monitor or control. Liquids and solids are commonly measured with this measuring technique. Like: Fly ash silo. Radar level sensors are divided into Pulsed radar technology and frequency modulated continuous wave (FMCW) radar level sensors.

Sino-Inst produces 120GHz FMCW radar level sensor, 26GHz radar level meter, 6GHz level meter.

Extended reading: Radar Oil Tank Level Sensor

⑴ The working principle of the magnetic level gauge is based on Archimedes’ law.
Using the principle that the weight of the float is equal to the weight of the volume of the liquid discharged by the float, the float-equipped with magnetic steel changes with the change of the liquid level.
The position of the magnetic line of force in the float (that is, the actual liquid level position) drives the turning column and the turning plate through magnetic action. When the liquid level rises, the liquid phase turns red.
When the liquid level drops, the gas phase turns white or black. So as to clearly indicate the change of the liquid level in the container.

⑵ A ruler is installed on the display panel so that the liquid level can be read directly. A valve is installed at the lower end of the body for sampling and draining.

The most significant feature of the Magnetic propane tank level indicator is that the liquid medium is completely isolated from the indicator. So it is very safe and durable under any circumstances. Moreover, various types of liquid level gauges are equipped with liquid level alarm and control switches, which can realize the upper and lower limit offside alarm control or interlocking of the liquid level or boundary level.

Equipped with a dry reed chipset liquid level transmitter, it can convert liquid level and boundary signals into two-wire 4-20mADC standard signals. It is transmitted to the computer, regulator, and liquid level indicator to realize remote indication, detection, recording, and control.

Magnetic level gauges are widely used for liquid level measurement and control in various production processes such as petroleum, chemical, metallurgy, pharmaceutical, food, and electric power.

Extended reading: Industrial Tank level indicators and Tank Level Gauges

Float level sensors are continuous level sensors. Float level gauges use magnetic floats as measuring elements. magnetic float that rises and falls as liquid levels change. The movement of the float will generate a magnetic field. The sensor’s internal resistance changes linearly, and the intelligent converter converts the resistance change into a 4~20mA standard current signal. It can display the liquid level percentage, 4~20mA current, and liquid level value on the spot. It can also output the switching value signal to conduct liquid Bit switch control. Float level sensors are low-cost liquid level measurement and control instruments.

You can choose single-point or multi-point measurement and control. Can bring huge profit difference for OEM. float level sensors can be used for liquid layer measurement. Such as oil/water tanks, liquid material inventory, and measurement in high temperature, high pressure, and corrosive environments.

Extended reading: Fuel-Diesel-Water Tank Level Sensor Monitoring

Magnetostrictive Level Transmitters are used for continuous measurement of liquid level and interface. Magnetostrictive level measurement is currently the best liquid level measurement and control technology.Sino-Inst’s Magnetostrictive Level Transmitters can provide two independent outputs: interface; overall level. It can be applied when the difference in specific gravity drops to 0.02.

Magnetostrictive Level Sensors Commonly used for the measurement of the oil-water interface. And others include acid tanks, propane containers, desalter and sewage tanks.

Magnetostrictive Level Transmitters are composed of three parts: probe rod, circuit unit and magnetic float. The flexible cable type and the outer buoy type are derived from the basic model. And has a variety of communication modes 4~20mA, 0~5V, 0~10V, HART, RS-485 and so on.

Extended reading: Magnetostrictive Hydraulic Cylinder Position Sensor

The external measurement type level gauge is also called the externally attached ultrasonic level gauge. Its working principle is ultrasonic echo ranging, that is, ultrasonic waves are transmitted through the tank wall and then conducted in the liquid medium, and the liquid surface returns to the bottom to be received by the sensor. The height of the liquid level is calculated by the time difference. On-site OLED display, while realizing remote transmission of monitoring liquid level, realizing automatic control.

Field of application of external level gauge:

  • The level gauge has a wide range of applications. In particular, the application of liquid level measurement for flammable, explosive, highly corrosive, toxic and harmful pressure vessel storage tanks is more prominent;
  • Oil refinery: liquefied gas, propylene, propane, ethane spherical tank / horizontal tank level gauge
  • Chlor-alkali industry: liquid chlorine storage tank level gauge
  • Synthetic ammonia device: liquid ammonia spherical tank/horizontal tank level gauge
  • Silicone industry: spherical tank/horizontal tank level gauges such as silicon trichloride, silicon tetrachloride, trichlorosilane, etc.
  • Refrigeration industry: liquid ammonia, dichloroethane, hydrogen fluoride and other storage tank level gauges
  • Level gauge applications in other chemical fields.

Read more: Guide: Non-contact Ultrasonic Level Sensing transmitters

Maybe you also need to measure the propane tank flow. Then you can refer to: Industrial LPG/Propane flow meter.

Still have questions?

If you cannot find an answer to your question in our FAQ, you can always contact us
and we will be with you shortly.

Maybe you also need to measure the propane tank flow. Then you can refer to: Industrial LPG/Propane flow meter.

Large Propane Tank Level Indicator

The External Ultrasonic Tank Level Sensor adopts the sonar echo ranging principle. It overcomes the influence of the tank wall on the transmission of ultrasonic signals. It adopts advanced digital signal processing technology. It can truly realize the non-contact, high-precision measurement of the liquid level in the tank.

The External Ultrasonic Tank Level Sensor can output 4-20mA standard signals or output the measurement results to the upper computer (or secondary meter) through the RS-485 interface. It can meet the automatic control of the system.

Extended reading: Diesel fuel tank level gauges & indicators

Wide measuring range

Range specifications are optional: 3m, 5m, 10m, 20m, 30m

Non-contact level measurement function

The ultrasonic sensor (probe) is installed externally, and there is no need to open a hole in the container to be tested.

Testable container:

Wall thickness: 2~70mm;
Tank type: horizontal tank, spherical tank, tank, vertical tank, etc.


Our level gauge supports local display when measuring propane tank. It also supports remote signal output such as 4-20mA. Can be used for liquid level monitoring of the control system.

Extended reading: How does a Radar Corrosive Liquid Chemical Level Sensor work?

When the ultrasonic liquid level sensor is working, the high-frequency pulse sound wave is emitted by the transducer (probe). It is reflected on the surface of the measured object (water surface). The reflected echo is received by the same transducer (probe) and converted into an electrical signal. The time between sending and receiving the pulse (the movement time of the sound wave) is proportional to the distance from the transducer to the surface of the object.

The relationship between the distance s of sound wave transmission and the speed of sound c and the transmission time t can be expressed by the formula: s=cⅹt/2
The acoustic wave is a kind of media that transmits information. It is closely related to mechanical vibration. The mechanical vibration produced by the impact and movement of objects spreads outward in the form of waves. According to the frequency of the wave generated by the vibration, it is divided into audible sound waves, infrasound waves, and ultrasonic waves. The sound waves higher than 20khz are called ultrasonic waves.
Extended reading: Guide to Ultrasonic Level Transmitters

A magnetic Level Gauge is also called a magnetic level indicator. Magnetic Level Gauge is developed based on the principle of buoyancy and magnetic effect. The magnetic float in the measuring cylinder drives the two-color turning column on the external display of the measuring cylinder to flip with the increase (decrease) of the liquid level to be measured. As the position of the float changes, the indicator moves up and down the same amount. Supports top-mounted and side-mounted. It can be used for liquid level detection in high temperature, low temperature, high pressure, strong corrosion, highly toxic and dangerous environments.

Read more about: Ultrasonic Tank Level Sensors for Tank Level Monitoring

Sino-Inst offers over 10 Propane Tank Level Indicators for level measurement. About 50% of these are Radar level meters, 40% is the magnetic level sensor.

A wide variety of Propane Tank Level Indicators for level measurement options are available to you, such as free samples, paid samples.

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

Radar Level Measurement System for High Temperature Blast Furnace

Radar Level Measurement System for High-Temperature Blast Furnace. This article is a case introduction for a customized radar level system.

What is a blast furnace?

The blast furnace uses a steel plate as the furnace shell, and the shell is lined with refractory bricks. The blast furnace body is divided into five parts from top to bottom: throat, body, waist, belly and hearth. Due to the advantages of good technical and economic indicators of blast furnace ironmaking, simple process, large production volume, high labor production efficiency and low energy consumption, the iron produced by this method accounts for the vast majority of the world’s total iron output.

During blast furnace production, iron ore, coke, and slag-forming flux (limestone) are charged from the top of the furnace, and preheated air is blown from the tuyere located at the lower part of the furnace along the furnace circumference.

At high temperature, the carbon in the coke (some blast furnaces also inject auxiliary fuels such as pulverized coal, heavy oil, natural gas, etc.) and the oxygen in the air are combusted to generate carbon monoxide and hydrogen. Oxygen, thereby reducing to obtain iron.

The smelted molten iron is released from the iron mouth. Unreduced impurities in iron ore and fluxes such as limestone combine to form slag, which is discharged from the slag port.

The generated gas is discharged from the top of the furnace, and after dust removal, it is used as fuel for hot blast stoves, heating furnaces, coke ovens, boilers, etc.

The main product of blast furnace smelting is pig iron, as well as by-product blast furnace slag and blast furnace gas.

Read more about: Common Types Of Heating Oil Tank Level Sensors

Difficulties in Level Measurement of Blast Furnace Silo

The level detection and control of blast furnace silo is very important to ensure the continuous production of blast furnace. However, due to the particularity of its working conditions, the material level measurement has the following difficulties:

  1. The temperature is too high.
    The temperature of the blast furnace silo is high. Its working temperature range is generally between 200 and 300 ℃.
  2. The dust is large.
    The dried raw materials in the blast furnace silo. Such as carbon, lime, ores, etc., will emit a large amount of dust suspended in the air during the feeding and production process.
  3. Strong impact and wear.
    The height of the blast furnace silo is much higher than that of ordinary containers. The solid material such as block material inside it will have a large downward gravitational impact on the measuring instrument during the feeding process. And each time it causes different degrees of wear and tear to the measuring instrument.
  4. The dielectric constant varies greatly.
    Since the material ratio will change and the mixing is not uniform, it may also be affected by a small amount of steam. Therefore, the dielectric constant of the medium changes greatly. At the same time, more dust in the blast furnace will also interfere with the dielectric constant.

Extended Reading: Dielectric constant for radar level transmitter

What kind of level meter can be used for blast furnace level measurement, can radar level meter be used?

To solve the problem of blast furnace level measurement, it is possible to use a radar level gauge to measure it. The radar level gauge is a continuous level measuring instrument with a measurement accuracy of up to ±1mm. The temperature can meet the measurement conditions of 1200 degrees, and fully meet the blast furnace material level measurement conditions.

In the blast furnace level measurement process, the most important thing is the selection of the level meter. Only when the on-site measurement conditions are met, can the work efficiency be effectively improved. The selection of radar level gauge can be based on three parameters of measuring medium, temperature and pressure. The second is its installation method and output signal. In this way, the difficult problem of blast furnace level measurement can be easily solved.

Extended Reading: Featured Silo Level Sensors

Introduction of Radar Level Measurement System for High-Temperature Blast Furnace

In the picture:

1. Dryer: The function of the dryer is to dry compressed air. The compressed air used for the radar purging device must be dewatered and dry compressed air. In order to ensure the service life and function of the radar device.

Air-conditioning gun: It can cool down the compressed air. After the compressed air processed by the cold air gun reaches the radar purge device, it has a cooling effect. Can protect radar.

If the dryer and the air-conditioning gun are configured at the same time, there is basically no maintenance problem after installation. It can be used normally for a long time.

The dryer and air-conditioning gun can also be configured with only one choice. Radar can also work very well. However, maintenance may occasionally be required.

The configuration of the dryer and air-conditioning gun is up to you according to your budget.

2. Solenoid valve + time relay control, their function is to control the purge frequency and time. Save energy costs.

We will make a small explosion-proof control cabinet.

After installation, you only need to set the purge frequency and time. The purge frequency and time need to be set according to the dust situation in your furnace.

3. Purge device. Use compressed air to purge the dust in the furnace while cooling down.

4.120GHz FM continuous radar level meter

5. Compressed air pipeline. The distance between the dryer and the radar must not be longer than 30 meters. That is, 5. The total length of the compressed air pipeline cannot exceed 30 meters.

6. Compressed air outlet

7.4-20mA or 485 output line. Choose according to your needs.

8. Air compressor. For supplying compressed air. Configure according to customer requirements. Customers can also purchase locally. Or, configure it in our factory.

Extended reading: Magnetostrictive Hydraulic Cylinder Position Sensor

Introduction of 120GHz FM continuous Radar Level Meter

  • Transmission frequency: 120GHz
  • Measurement accuracy: ±1mm
  • Measuring distance: 36m / 150m
  • Output mode: (4~20)mA+HART
  • Power supply: 24VDC
  • Debugging method: LCD
  • Temperature: Ambient temperature: -40℃~80℃
  • Process temperature: -40℃~200℃
  • Explosion-proof/protection grade: EX d C T6 Gb
  • Recommended use: Super strong dust storage tank, fast material flow conditions

The above parameters are conventional style parameters.

Extended reading: Radar Level Meter for Corrosive Liquids

The following table is a customized parameter list:

Code Description
0 Not explosion-proof Explosion-proof requirements
1 Explosion-proof
1 liquid Measuring medium
2 solid particles
3 solid powder
A 24VDC power supply
B 220VAC
1 Guided wave hard rod type Antenna type
2 Guided wave flexible cable type
3 Stainless steel bell mouth
4 rod antenna
5 Flat
6 Drop type
7 lens type
8 UHF 120GHz
9 Special custom
C Normal temperature type (-40~80)℃ Process temperature
H High temperature type (-40~200)℃ plus heat sink
G Ultra-high temperature type (-40~350)℃ high temperature material + heat sink
S Special high temperature (-40~1200)℃
F1 1.0MPa Pressure Level
F2 1.6MPa
F3 2.5MPa
F4 4.0MPa
S special
L1 threaded connection (order note) Process connection
D50 DN50 flange
D80 DN80 flange
D100 DN100 flange
S other
1 PP Flange material
2 Tetrafluoro
3 stainless steel
4 special
A 4-20mA output signal
B 4-20mA+HART
C RS485
C with purge Whether with purge
N without purge
L 0~70000mm optional Range

Therefore, according to your measurement requirements, our selection is

Ultra high frequency 120G radar level gauge, model: 03A8SF21003AC

[Blast furnace installation, temperature: 400 degrees, pressure: 1.6MPA, dust inside, range: 30 meters, power supply: 24VDC, output signal: 4-20MA, two-wire system, installation size: DN100PN16 flange, with purge interface]

Extended Reading: Case: High Temperature Radar Level Transmitter for Melted Salt-Solar Photovoltaic Power Station

Necessity and feasibility of using radar level meter for blast furnace molten iron

The replacement of each product has its necessity and feasibility. It is also necessary and feasible to use radar level gauges to replace manual visual inspection in ironworks.

Before the radar level meter entered the ironmaking plant, many factories used manual visual inspection to measure the liquid level in the blast furnace. This method has many advantages and many limitations.

First of all, the molten iron temperature in the blast furnace is very high, sometimes as high as 1490 ℃, and even exceeds this temperature. Manual visual inspection requires close observation, which is very dangerous for employees who are visually inspecting.

Other seasons are fine. In winter, the visibility is low, the fog is heavy, the degree of danger is self-evident, and the accuracy of the measurement is also very poor.

Secondly, factors such as man-made or weather can easily cause the molten iron cans to be canned or overflowed, resulting in production accidents.

From the above two limitations of manual visual inspection, it is very necessary for ironworks to use meters. At least the safety of employees is guaranteed, and production accidents caused by molten iron overflow can be avoided.

Purge Device

The purging device uses the dynamic pressure compensation method of hydrodynamics to truly reflect the pressure value of each measuring point online. The purging pressure is greater than the measured pressure, which completely solves the blockage and burning of the pressure measurement pipeline under the condition of dusty and high temperature. The use of pressure regulators can stabilize the gas source provided by the power plant to ensure that the flow rate output by the flow controller is stable and runs reliably for a long time.

In the following conditions, a purging device needs to be added to the blast furnace liquid level measurement system:

First, when the measured powder concentration is relatively large, it is necessary to purge;
Second, the concentration of vapor in the measurement medium is relatively large, and condensation is easy to form on the surface of the sensor, which must be purged.
Third, when the temperature is too high, purging and cooling can also be increased.

Quotation for Radar Level Measurement System for High-Temperature Blast Furnace

120G radar level gaugeModel: 03A8SF21003ACUSD ?898.50
DryerAdsorption dryerUSD ?25.00
Air Conditioner USD ?50.00
Solenoid valve controlSolenoid valve + time relay controlUSD ?60.00
Air compressorFor supplying compressed airUSD ?05.00

Extended Reading: Case: High Temperature Radar Level Transmitter for Melted Salt-Solar Photovoltaic Power Station

Featured Radar Level Transmitters

Measuring medium: liquid;
Measuring range: 0.05m~30m;
Process connection: G1½A / 1½NPT thread / flange ≥DN50;
Process temperature: -40~80℃;
Process pressure: -0.1~0.3 MPa;
Antenna size: 32mm lens antenna;
Antenna material: PTFE

SI-FMF12 Frequency Modulated Continuous Wave Radar Level Sensor

Measuring medium: liquid Measuring range: 0.05m~35m Process connection: G2A thread/flange≥DN65 Process temperature: -40~110℃ Process pressure: -0.1~1.6MPa Antenna size: 42mm lens antenna Antenna material: PTFE

SI-FMF13 FMCW Radar Water Level Sensor

Measuring medium: liquid
Measuring range: 0.1m~100m
Process connection: flange ≥DN80
Process temperature: -40~110℃
Process pressure: -0.1~0.3MPa
Antenna size: 78mm lens antenna
Antenna material: PTFE

SIRD-901 Radar Corrosive Liquid Chemical Level Sensor

Application: various corrosive liquids
Measuring range: 10 meters
Process connection: thread, flange
Process temperature: -40~130℃
Process pressure: -0.1~0.3 MPa
Accuracy: ±5mm
Protection level: IP67

SIRD-902 Drop Antenna Radar Tank Level Sensor

Application: temperature-resistant, pressure-resistant, slightly corrosive liquid
Measuring range: 30 meters
Process connection: thread, flange
Process temperature: -40~130℃ (standard type) / -40~250℃ (high temperature type)
Process pressure: -0.1~4.0MPa
Accuracy: ±3mm
Protection level: IP67

SIRD-902T Microwave Radar Liquid Level Sensor

Application: corrosive liquid, steam, volatile liquid
Measuring range: 20 meters
Process connection: flange
Process temperature: -40~130℃ (standard type) / -40~250℃ (high temperature type)
Process pressure: -0.1~2.0MPa
Accuracy: ±3mm
Protection level: IP67
Frequency range: 26GHz

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Sino-Inst offers over 10 Radar level transmitters for level measurement. About 50% of these are Radar level meters, 40% is the tank level sensor.

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

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

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Sanitary Flow Meters for Sale

Common sanitary flow meters are sanitary magnetic flow meters and sanitary turbine flow meters. Composed of 304/316 stainless steel. A Sanitary flowmeter with Tri-Clamp fittings is easier to install and disassemble. Suitable for the food hygiene industry.

The sanitary flowmeter uses a new sanitary lining material and lining technology. At the same time, a stainless steel casing and a stainless steel clamp connection are used to facilitate the quick disassembly and cleaning of the sanitary flowmeter. It is not easy to be polluted, and can effectively prevent the accumulation of measuring fluid residue in the measuring tube. It is used in the production process of mineral water, soy sauce, jam, beer, fruit juice, rice wine, milk and other foods and in the fields of hygiene and chemical industry.

Sino-Inst offers a variety of Sanitary flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Featured Sanitary Flow Meters for Sale

In this article, except for the sanitary magnetic flow meter and sanitary turbine flow meter. We will fully analyze the sanitary flow meter for you. And introduce other types of sanitary flow meters. This is the best Sanitary Flow Meters Buyer’s Guide.

Sanitary Turbine Flow Meter

Sanitary turbine flow meters have stainless steel bodies and come standard with Tri-Clover fittings. A Sanitary flow meter is suitable for measuring liquid without impurities. It can output pulse frequency signals. It is used to detect instantaneous flow and total integrated flow. A Sanitary flow meter can be used in food, sports drink, liquor, and other beverage industries, in preprocess applications.

Sanitary Turbine Flow Meter reference price: DN50USD 300-700/pc.

  • Meets the requirements of 3-A Sanitary Standard number 28-04
  • 316L stainless steel body and internal wetted parts
  • Consistent, reliable gas flow measurement
  • Wafer mounting configuration for limited space requirements
  • Anti-corrosion and anti-rust materials, suitable for the health industry;
  • Quick-load structure, easy to install and maintain;
  • High precision and good repeatability;
  • High-quality turbine, beyond the conventional range;

Know more about: Turbine type Flow Meter

Sanitary Magnetic Flow Meter

Sanitary Flow Meter uses a new type of sanitary lining material and lining technology, which meets the sanitary requirements of the food industry. It uses a stainless steel shell and stainless steel clamp connection. It is convenient for the quick disassembly and cleaning of the electromagnetic flow meter. Magnetic flow meter in a sanitary version which meets the strict requirements of the food-processing and bio-technology/ pharmaceutical industries.

Extended reading: Industrial Magmeters

  1. The sensor adopts new sanitary lining material. Prevent the accumulation of measuring medium residues in the measuring tube.
  2. The sensor adopts a quick connection scheme. The electromagnetic flowmeter is easy to disassemble, maintain and clean.
  3. The converter uses a 16-bit embedded microprocessor for signal processing. It has high integration and fast calculation speed. The calculation accuracy is high. Fully digital signal processing. Strong anti-interference ability. Features such as reliable measurement.
  4. The intelligent converter can simultaneously display measurement data such as volume flow percentage, instantaneous flow, and cumulative flow.
  5. The flowmeter is a two-way measuring system with three totalizers inside. Forward total, reverse total, and difference total. It can display positive and negative flow.
  6. With digital communication signal output such as current, pulse, RS485, RS232, Hart and Modbus.

Guess you like: Magnetic Flow Meters technical guide|What is &How they work? 

Sanitary Metal Rotameter

The sanitary metal tube float flowmeter has local display type and intelligent remote transmission type. With pointer to display the instant / cumulative flow liquid crystal display. Upper and lower limit alarm output, cumulative pulse output, batch control, standard two-wire 4-20mA current output and other forms. Provides a very broad choice for users to use. In addition, the instrument uses advanced micro-processing central chip and high-quality industrial components. Ensure the excellent performance of the flowmeter in various applications.

Extended reading: How does a rotameter work

  1. Suitable for flow measurement of small-diameter and low-velocity media;
  2. Reliable work, small maintenance, and long life;
  3. The requirements for straight pipe sections are not high, and the wider flow ratio is 10:1
  4. Double-line large LCD display, optional on-site instantaneous/accumulated flow display, with backlight;
  5. Single-axis sensitive indication;
  6. All-metal structure, suitable for high temperature, high pressure, and strong corrosive media;
  7. It can be used in flammable and explosive hazardous situations.

Rotameter flow meter-Variable Area Flow Meters

Sanitary Differential Pressure Flowmeter

The left part of the sanitary differential pressure flowmeter is a sanitary stainless steel shell, and the right part is the electronic component cavity. The stainless steel shell is a straight-through pipe, and the interior is designed with no gaps and no dead ends. The internal surface of the straight-through pipeline is sanitary polished.

A differential pressure sensor diaphragm is arranged in the straight-through pipeline to form a throttling device. The front side of the diaphragm of the differential pressure sensor faces the direction of fluid flow. The negative side of the diaphragm of the differential pressure sensor is parallel to the flow direction of the fluid. When fluid flows through this straight-through pipeline, due to the throttling effect of the differential pressure sensor capsule inside the pipeline, a pressure difference is formed on the positive and negative sides of the differential pressure sensor capsule.

The differential pressure sensor capsule is provided with a Swiss ROCKSENSOR differential pressure measurement chip, a static pressure measurement chip and a temperature measurement chip. It can measure and obtain the differential pressure signal on the positive and negative side of the differential pressure sensor capsule, the static pressure signal of the pipeline and the temperature signal of the fluid.

Sanitary Slurry Flow Meter

Flow measurement of Slurry and Solids is one of the most challenging applicaiton for magmeters. In wide industrial slurry pipelines, Magnetic Flow meters are ideal choice. Mag flow meters are ideal for any dirty liquid which is conductive or water based. Some types Ultrasonic flow meters can also measure flow rate of slurry, but the cost is too high. So, if you need to measure the flow of slurry or solids, We recommend using an electromagnetic flowmeter.

Extended reading: Stainless steel flow meters|304-316 optional

Tri Clamp Flow Meter

Tri Clamp Flow Meter’s clamp-type quick couplings are also called Tri-Clamp fittings.
The clamp is a connecting device for connecting grooved pipe fittings, valves and pipeline fittings. Used to tighten the connection between the quick connectors. Generally the joints are provided with gaskets, rubber, silicone and PTFE. It has good performance, high sealing and easy installation.

Advantages of Tri Clamp Flow Meter:

  1. Fast. There is no need for welding and re-galvanizing, and the installation speed is more than 3 times faster than flange connection.
  2. Simple. It is lighter than the flange, the locking mechanism is cleverly designed, the number of bolts is small, and there is no need to lock the holes.
  3. Reliable
    ①The clamp, washer and pipe end groove are compressed on the whole circumference, and the pipe end tensile strength is high, the test pressure reaches 4.2MPa, the temperature is -30℃~100℃, and the vacuum degree can reach 0.08MPa;
    ②The gasket is designed as type C, which can form triple leakage prevention. The greater the pressure in the pipe, the better the seal;
    ③The gasket material can be selected appropriately according to the fluid medium, pipe material and temperature.
  4. Vibration isolation and shock absorption
    ①Because the gap at the end of the pipe can effectively cut off the transmission of noise and vibration, the pipeline will not be affected during thermal expansion and contraction;
    ②The sealing gasket can also absorb noise and vibration.
  5. Economy and safety are convenient for project budget, and it can save 20% of total project cost compared with flange connection. Construction does not require power, oxygen, or open flames.
  6. Zero pollution. Because there is no welding slag and damage to the galvanized layer and the plastic layer in the original installation, the pipeline can be guaranteed to be unblocked. The connected pipeline, especially the fire sprinkler system, will not rust and block the equipment, sprinkler heads, etc. in the pipeline due to other connections.
  7. Take up less space
    ①Flange installation space is 3:2 compared with clamp joint.
    ②The clamp joints and accessories can be installed first, and can be adjusted in any direction and angle, and the piping is free.
  8. Easy maintenance.
    Disassembly, washing and replacement only need to remove two clamps and four bolts, which is convenient for pipeline extension, replacement and rotation direction. Even wear.

Extended reading: Gas Rotameter Tips

3A Sanitary Flow Meters

The “3-A” standard is recognized as an important international health standard, and people in the industry will often mention it. Since 1956, the 3-A mark has become a registered mark used to prove that the materials, hygienic design, and production and assembly procedures of the equipment affixed to the label meet the requirements of the 3A standard. In order to improve the credibility of the 3-A mark, in 2003, under the leadership of the 3-A SSI, the third party verification (TPV) was implemented.

With the continuous development and progress of the certification, the 3-A symbol far exceeds a symbol. Based on decades of cooperation and recognition of key stakeholders such as dairy products, food health experts, equipment manufacturers, etc., the 3-A brand has been widely recognized in the food processing equipment market. The value of 3A is manifested in many aspects of stakeholders:

1) The value of 3A to food processors
As leading manufacturers, processors and USDA and FDA regulatory health experts have participated in the development of the 3A standard. Users of dairy processing equipment can ensure that their equipment complies with all applicable hygiene regulations and can achieve effective cleaning. And it can be expected that the inspection by the regulatory agency can be successfully completed.

2) The value of 3A to equipment manufacturers
Because of the high recognition of 3A in the sanitary equipment range. It has now become a passport to enter the US food, dairy, and pharmaceutical and sanitary equipment markets. It is also a symbol of global quality products. It is well-known in various markets around the world. Because the 3A symbol has been recognized by almost all health experts and regulatory officials. Products affixed with the 3A logo can be widely accepted worldwide.

At the same time, because each standard details the hygienic aspects of materials, design and manufacturing. Therefore, the equipment meets the requirements of processors and health experts. Standards also reduce mold, tooling costs, and the expected delivery time due to the lack of uniform standards. At the same time, 3A certification has also formed a huge marketing advantage.

Extended reading: Vortex Hygienic Flow Meter

Clamp-on flowmeter for sanitary industry

Clamp on flow meter (Model: 2000) is composed of an integrated host and ultrasonic clamp on sensor. Clamp on flow meter is widely used in online flow measurement of various liquids. Just stick the external clamp sensor on the pipe surface. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow. The installation is convenient and quick, and the non-destructive installation is truly realized.

Clamp on Flow Meter Reference price: USD 470.00/pc

Handheld Ultrasonic Flow Meter ( Model:2000H) has been successfully applied to measurement work in various industries. The measuring range is 20-6000mm (0.5-20 inches). A non-contact measurement method is adopted. Flexible operation and easy to carry. Conductive or non-conductive, corrosive or non-corrosive liquids can be measured. Various fluids: water, pure water, sewage, sea water, chemical fluids, river water, fuel Oil etc. can be measured.

Handheld Ultrasonic Flow Meter Reference price: USD 470.00/pc

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

Application of sanitary flow meters

Typical applications include measuring or batch controlling water, WFI, USP water, deionized water, vaccines, clean pharmaceuticals, milk, cream, vegetable oil, wine, beer, spirits, soft drinks, juices (without pulp), and any other clean, consumable liquid.

Application Examples:

  • Sanitary
  • Food Processing
  • Pharmaceutical
  • Industries Process or Industrial
  • Pharmaceutical industry:
    • filling and metering of infusion products such as saline and glucose water;
  • Food and beverage industry:
    • filling and metering of liquid foods such as vegetable juice, juice, beer, and refined oil.
    • brewery

Read More about: Chemical Flow Meter Guide


Where should a flow meter be placed?

Different types of flow meters have different requirements for the choice of installation location. Where to install the specific flowmeter, you need to decide according to the product you purchase.
Such as electromagnetic flowmeter.
1. Choice of installation site:
  ·Choose a place where there is no negative pressure in the measuring tube;
  ·Avoid installing in strong electric equipment accessories such as motors, transformers, etc., to avoid electrical interference;
  ·Avoid places with strong corrosive gas around the installation location;
  ·When measuring mixed-phase fluids, avoid places that cause phase separation;
  ·The ambient temperature should generally be within the range of -25℃~60℃, avoid direct sunlight as much as possible;
  ·Installed in a vibration-free or small vibration environment, if the vibration is too large, fixed supports should be added to the pipes before and after the sensor;
  ·The relative humidity of the environment should be within the range of 10%~90%;
  ·Avoid installing in a place that can be directly drenched or submerged by rain;
2. Requirements for the length of straight pipe section: (D is the inner diameter of the flowmeter)
The electromagnetic flowmeter has relatively low requirements for the front and rear straight pipe sections. Generally for 90° elbows, T-shaped tees, reducers, fully open valves and other flow resistance parts. There should be a 5D straight pipe section away from the center line of the electrode axis of the electromagnetic flowmeter (not the end face of the sensor).
For valves with different opening degrees (such as valves with adjustable opening degrees), the length of the upstream straight pipe section needs to be 10D. One
Generally, the straight pipe downstream of the sensor only needs 3D to meet the requirements. When measuring mixed liquids of different media, the distance between the mixing point and the flowmeter must be at least 30D.
3. Installation position and flow direction:
The electromagnetic flowmeter can be installed on the pipeline horizontally, vertically and obliquely

What does a flow meter control?

The flow meter itself does not have a control function. The flowmeter can output signals according to the requirements of your control system. Such as 4-20mA, pulse signal, etc. And HART or, RS485, etc.
If you need a flow meter with a switch output function, it should be a flow switch.

What is the most accurate flow meter?

Generally speaking, the accuracy of mass flow meters is the highest. What is measured is mass quantity, which is a flow meter often used as a trade settlement.
The flowmeter can generally reach 1.0 level, and 0.5 level is considered high accuracy. The accuracy of liquid flow meters is generally 0.2%-0.5%.
Of course, the accuracy of the flowmeter still depends on the site conditions. If the measurement of temperature and pressure is not very difficult, the accuracy of the flowmeter must be relatively high. In addition, to ensure the accuracy of the flowmeter, correct installation and use are also very important.

How do you clean a flow meter?

The cleaning method of the flowmeter should be determined according to the type of the flowmeter and the measured medium. It can be rinsed with water, or a cleaning solution can be used according to specific conditions. It is best to remove and clean.

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Sino-Inst offer over 10 Sanitary Flow Meters, with Best Price.

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

About 13% of these are magnetic flow meter, 14% are Turbine Flow Meter, 25% are Venturi flow meter, 13% are Handheld ultrasonic flow meter, and others are Liquid mass Flow Meters.

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