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.

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 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: DN50. USD 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 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

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

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

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

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

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 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

FAQ

You may like:

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.

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

A natural gas flow meter is mainly used for inline measurement of natural gas flow. The natural gas flow meter is mainly used for industrial production and trade settlement.

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.

Featured Natural Gas Flow Meters

Natural Gas Flow Meter Types

The flow measurement of natural gas is currently mainly used in trade settlement and is relatively common. my country’s natural gas trade measurement is based on the volume or energy method under the legally required quality indicators for transfer measurement. At this stage, volume measurement is basically the main method.

At present, the flowmeter products used for natural gas flow measurement generally include: gas waist wheel flowmeter, gas turbine flowmeter, precession vortex flowmeter, vortex flowmeter, ultrasonic flowmeter and orifice flowmeter. Read more about: Industrial Gas Measurement with Digital Gas Mass Flow Meters

Let’s make a simple comparison on the use of these flow meters.

In short, these 8 types of flowmeters have their own advantages and their shortcomings in the measurement of natural gas flow.

Extended reading: What Is A Venturi Flow Meter?

Natural gas flow meter selection

Faced with so many varieties of natural gas flow meters, the selection has become a difficult problem.How to scientifically and objectively select the best flowmeter is a problem that needs attention.

We believe that the selection should follow appropriate rules. Try to avoid misleading propaganda from manufacturers. Blindly choose expensive ones.

Find a flow meter that is just right for yourself, it is your ideal flow meter.

Natural gas flow meter selection can be carried out in five aspects: Instrument performance. Fluid characteristics. Installation conditions. Environmental conditions and economic factors.

The various considerations are as follows:
Performance aspects of natural gas flow meters:Accuracy. repeatability. linearity. range. pressure loss. upper and lower limit flow. signal output characteristics. response time, etc.

Fluid characteristics of natural gas flowmeter:

Fluid pressure, temperature, density, viscosity. lubricity, chemical properties, numbness. corrosion, fouling, dirt, gas compressibility. iso-index, specific heat capacity, electrical conductivity. speed of sound, mixed-phase flow, pulsating flow, etc.;

Installation conditions of natural gas flowmeter:

Pipeline layout direction, flow direction, upstream and downstream pipeline length. pipeline diameter, maintenance space, pipeline vibration. grounding, power supply, auxiliary equipment (filtration, sewage), explosion protection, etc.;

Environmental conditions for natural gas flow meters:

Environmental temperature, humidity, safety, electromagnetic interference, etc.;

Economic factors of natural gas flowmeter:

Purchase cost, installation cost, maintenance cost. calibration cost, service life, operating cost (energy consumption), spare parts, etc. Fluid vibration natural gas flowmeter. There are two types of this type of flowmeter, vortex flowmeter and precession (vortex precession) flowmeter.

Users can consider their actual situation when choosing, and analyze specific problems in detail. Choose the right flow meter product to ensure the correct measurement.

Of course, if you still have technical questions when selecting natural gas flow meters, please feel free to contact Sino-Inst sales engineers.

Portable natural gas flow meter

Currently, the Portable Gas flow meter is mainly products such as German FLEXIM and GE TransPort PT878GC. However, the cost of such products is very high.

Therefore, on the basis of cost control, we need to choose a suitable natural gas flow meter.

Although, we do not have a portable gas flow meter. But we have handheld ultrasonic liquid flow meters. Read More.

Natural gas flow meter price

Sino-Inst, as a manufacturer of natural gas flowmeters, under the premise of ensuring product quality, we provide you with competitive prices for natural gas flowmeters.

The following is the reference price of natural gas flowmeter:

You may like:

Sino-Inst’s Natural Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.

Sino-Inst is the risk-free choice for your gas flow measurement applications.

Sino-Inst supplies Natural Gas Flow Meters, like: gas turbine flow meter. vortex flowmeter, thermal mass flow meter, and more.

Sino-Inst’s Natural Gas Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, 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

What kind of flowmeter is used for coke oven gas measurement? The instability of the medium in the coke oven gas causes measurement problems for the flowmeter. Please keep reading.

Before this, coke oven gas can be measured with a V cone flowmeter. Today, we compare the characteristics and economic analysis of gas ultrasonic flow meters, thermal flow meters, and target flow meters. Let’s take a look at the application of these flow meters in coke oven gas measurement.

What is coke oven gas?

Coke oven gas is an important product and consumable of metallurgical enterprises. Coke oven gas has high calorific value and is widely used in the heating process of steelmaking, steel rolling, power generation and other production. Its consumption directly reflects the assessment of energy consumption of each unit The completion of indicators.

Therefore, coke oven gas flow measurement has always been the focus of energy measurement.

However, coke oven gas itself has a low flow rate, a low density, and contains impurities such as tar, water, industrial naphthalene, ammonia, and sulfides. Therefore, the flow measurement of coke oven gas is a difficulty in energy measurement.

Featured Flow Meters for Coke Oven Gas Measurement

Coke oven gas measurement challenges

1. The dirt of coke oven gas is blocked.
2. The instability of the working conditions of the coke oven gas fluid itself.
3. Coke oven gas is highly corrosive, causing serious damage to valves and lax closure. Small and low flow gas flows unimpeded in the pipeline, affecting the data balance of the entire system.
4. Once the coke oven is in production, it is difficult to stop production, resulting in inconvenient installation and disassembly.

Extended reading: Gas Mass Flow Meter

Case: Analysis of Lu’an Group Coke Oven Gas Metering Point

The coke oven metering points are mainly concentrated on the outlet of the fan, the return gas pipeline, the inlet and outlet of the gas tank, and the external gas supply pipeline.

The above-mentioned pipelines have been used for a long time, and there is dust accumulation in the pipelines, especially the dust accumulation in the outlet of the fan and the return furnace pipeline.

Moreover, the flow rate at the above-mentioned metering point is relatively low, and the pressure is relatively low. The gas contains tar and naphthalene. The composition changes due to different coal blending ratios, and also changes with the condensation of water vapor in the pipeline.

Therefore, the requirements for measuring instruments at the measuring point are as follows;

1. Measuring instruments are required to be not affected by gas composition (density)
2. The measuring instrument can adapt to the measuring characteristics of low flow rate and low pressure of coke oven gas
3. Dirt resistant, and the measurement is not affected by tar and naphthalene in the gas
4. In the measurement process, the measurement instrument can remove the influence of pipe dust on the measurement
5. It can be constructed online and installed without stopping the air.

Extended reading: Buy Digital Gas Flow Meters & Controllers For Air-O2-N2-CO2

Comparison of characteristics of ultrasonic flowmeter, smart target flowmeter and thermal flowmeter

Guess You’ll Like: Ultrasonic flow meters types & technical guide

Analysis of media characteristics of on-site metering points

1.The impact of dirt.

Coke oven gas contains impurities such as tar and naphthalene. These impurities will adhere to the pipes and also to the measuring instruments.

Impurities adhere to the probe of the ultrasonic flowmeter. It does not affect the measurement accuracy. It only reduces the intensity of the ultrasonic wave. According to the experience of using the ultrasonic flowmeter, the ultrasonic probe can still work normally if it is adhered with 1cm thick tar. Therefore, the ultrasonic probe is pulled out and cleaned regularly (usually three months) to ensure the normal operation of the ultrasonic flowmeter.

The adhesion of tar and naphthalene to the temperature measurement element of the thermal flowmeter will directly cause the temperature measurement data to be distorted. Therefore, the measurement performance is an abnormal increase in the flow rate data. The solution is to clean regularly, but the adhesion process is a gradual process, so the data of the flowmeter is gradually increasing.

Tar and naphthalene adhere to the target plate of the target flowmeter. It will cause the indication value to increase abnormally. The solution is to clean it regularly. However, the adhesion process is a gradual process, and the data of the flowmeter is constantly increasing.

From the comparison of the three, only the ultrasonic flowmeter is not affected by the pollution of coke oven gas.

2.Composition influence.

The composition of coke oven gas is not a fixed value. The gas composition changes with the coal blending ratio. At the same time, the content of water vapor in the gas is also not a fixed value. It also changes with the outside temperature and the temperature in the pipeline.

The ultrasonic flowmeter directly measures the flow rate of the gas, and the measurement and calculation formula have nothing to do with the gas composition.

The target flowmeter is a differential pressure flowmeter. The measurement and calculation formulas have a great relationship with the gas composition, and the measurement is affected by the gas composition.

Thermal flow meters are mass flow meters, and the measurement and calculation formulas have a great relationship with the gas composition, and the measurement is affected by the gas composition.

And, Industrial Gas Measurement with Digital Gas Mass Flow Meters

3.Requirements for installation concentricity

Because the flowmeter is installed online, the on-site installation methods and methods put high demands on measuring instruments.

The most important thing in the installation of ultrasonic flowmeter is the centering of the probe, which is installed on the valve stub at the site. The flowmeter has an adjustment screw that can be fine-tuned. Ensure that the site installation is completely centered. At the same time, the ultrasonic flowmeter only needs to be installed on the central axis. There is no need to consider the influence of the dust at the bottom of the pipeline on the central axis of the pipeline.

Due to the product structure and working principle of the target flowmeter, the target plate needs to be installed on the center of the pipe cross-sectional area. Due to the dust accumulation at the bottom of the pipeline, concentric installation in the pipeline is extremely difficult. Therefore, the target flowmeter is not suitable for installation on the pipeline with dust accumulation at the bottom of the pipeline.

Thermal flow meters need to be installed on the center of the pipe cross-sectional area due to the product structure and working principle. Due to the dust accumulation at the bottom of the pipeline, concentric installation in the pipeline is extremely difficult. Therefore, thermal flow meters are not suitable for installation on pipes with dust at the bottom of the pipe.

4.The influence of dust accumulation in pipelines

Sino-Inst has been installing ultrasonic flowmeters on site for a long time. It has accumulated a complete set of calculation methods and measurement methods for the cross-sectional area of ​​pipe dust. The influence of pipe dust on measurement can be reduced to a minimum. It can effectively avoid pipe dust on gas ultrasonic flow.

Extended reading: V-Cone Flow Meter Applications

Use cost and economic benefit analysis

1.One-time investment

Because it is a transformation project, the characteristics of the wide range ratio of the gas ultrasonic flowmeter cannot be brought into play. In terms of one-time investment, the gas ultrasonic flowmeter is higher than the target flowmeter and the thermal flowmeter.

2.Long-term operating costs

Due to the long-term operation of the flowmeter, there are costs in the following aspects: equipment maintenance costs, calibration costs, replacement parts costs, and operator labor costs.

(1) Equipment maintenance fee
Because the ultrasonic flowmeter is a maintenance-free instrument. The routine maintenance work is only to clean the probe regularly. The maintenance difficulty and frequency of thermal and target flowmeters are greater than that of ultrasonic flowmeters, which require frequent maintenance. Therefore, the maintenance cost of the latter is huge Higher than the former.

(2) Daily maintenance
Because the target plate is deformed and stuck during use, the target plate needs to be replaced frequently, and the target plate needs to be replaced frequently, and the cost is increased. Ultrasonic flowmeter does not require replacement parts. The probe can be replaced and replaced under pressure. Clean, other parts don’t need to be replaced basically.

(3) Pumping costs
Due to the low pressure of coke oven gas, the low flow rate. The target plate of the target flowmeter is required to be large, and the pressure loss of the flowmeter is large, which increases the load of the compressor. After years of practice, it has been proved that the operating cost increases with the increase of pressure loss. Pumping costs are also a considerable expense.

(4) Labor costs
Operator labor costs. The daily maintenance of the target flowmeter is relatively high, and the labor cost is a lot. The ultrasonic flowmeter is unattended and basically does not need maintenance. Therefore, the cost of operation and maintenance for the ultrasonic flowmeter will be much lower than that of the target flowmeter.

3.Management benefits

Due to the measurement characteristics of the gas ultrasonic flowmeter, it can maintain good measurement accuracy and stability in the medium of coke oven gas for a long time. Therefore, it can provide a basis for the daily production management and scheduling of coke ovens in coking enterprises. Improve the level of comprehensive gas utilization , Reduce gas emissions and combustion. It can greatly help enterprises in energy saving and emission reduction. Significantly improve overall benefits.

Especially in the existing coke oven gas to natural gas project. Accurate measurement can effectively improve the management level of the enterprise. Improve the comprehensive use efficiency of coke oven gas, reduce costs and increase efficiency.

Remarks:

1. Jiangsu Shagang Group lists gas ultrasonic flowmeters as the only selection instrument for gas measurement. More than 50 sets of gas ultrasonic flowmeters are used on coal gas. Energy management has been implemented for coke oven gas, converter gas and blast furnace gas since 2013 Since then, it has not only improved the comprehensive utilization efficiency of coal gas, but also increased the production efficiency of coke ovens. The annual gas emission rate control has also been effectively controlled, and the annual direct economic benefit is more than 40 million yuan.
2. Shandong Weijiao Xuecheng New Energy is also in its coke oven gas to natural gas project. The gas ultrasonic flowmeter is included in the design selection as the only measuring instrument for coke oven gas.

To sum up, although the gas ultrasonic flowmeter has a large one-time investment, the long-term operating cost is low, and the management benefits are far greater than the equipment investment.

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Sino-Inst offer over 10 Flow Meters for Coke Oven Gas Measurement.

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

Sino-Inst is Flow Meters suppliers, located in China. 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 Magnetic Flow Meters respectively.

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

Flow technology turbine flow meter China, this article takes you to understand everything before purchasing turbine flow meters.

Turbine flow meter is often used for liquid and gas measurement. The gas turbine is mainly natural gas. Liquid Turbine Flow is the turbine flow meter suitable for liquid flow rate measurement. Like water flow, Diesel flow. The turbine flow meter is the most popular equipment to measure flow electronically. They offer a wide flow and application rangeability. Turbine Flow Meters are easy to maintain, durable and versatile.

Features of Turbine Flowmeters

1. The pressure loss is small, and the impeller has anti-corrosion function;
2. Adopt advanced ultra-low power consumption single-chip microcomputer technology. The whole machine has strong functions, low power consumption and superior performance;
3. Intelligent flow display with nonlinear precision compensation function. The accuracy of the revised formula is better than ±0.02%;
4. The instrument coefficient can be set online by the button. And can be displayed on the LCD screen. The LCD screen is intuitive and clear, with strong reliability;
5. EEPROM is used to protect the cumulative flow and instrument coefficient from power failure. The protection period is greater than 10 years;
6. Adopt high-performance MCU central processing unit. Completion of data collection and processing, display output, cumulative flow and instantaneous flow are the same;
7. Realization of convenient man-machine interface with screen display. Data transmission in standard 485 format;
8. It adopts full hard alloy (tungsten carbide) shielded cantilever beam structure bearing. Integrates rolling bearing and pressure bearing. Greatly improved bearing life. And can work in the medium with a small amount of sediment and dirt;
9. Adopt 1Cr18Ni9Ti all stainless steel structure. (The turbine adopts 2Cr13) Good anti-corrosion performance; 10. Easy to maintain, with self-rectifying structure. Small, lightweight, and simple in structure, it can be assembled and disassembled in a short time;
10. Simple internal cleaning;
11. Strong anti-magnetic interference and vibration ability, reliable performance and long service life;
12. The lower limit flow rate is low and the measurement range is wide;
13. On-site display type LCD screen shows clear and intuitive, low power consumption. 3V lithium battery power supply can run continuously for more than 5 years;
14. Corrosion-resistant materials are optional;

Read more about: Typical Turndown Ratios For Various Flowmeters

Featured Turbine Flow Meters for Sale

Reference price: US $200-1,500/ Piece. Contact Sino-Inst sales manager now to request a quotation!

Extended reading: Featured Cheap flow meters for Sale

• Technologies
• Advantages
• Application

Gas Turbine Flow Meter Working Principle

The gas turbine flowmeter uses a turbine for measurement. It first converts the flow rate into the rotational speed of the turbine, and then converts the rotational speed into an electrical signal proportional to the flow rate.

Gas turbine flowmeter is used to detect instantaneous flow and total integrated flow. Its output signal is frequency, which is easy to digitize.

The induction coil and the permanent magnet are fixed on the housing together. When the ferromagnetic turbine blade passes the magnet, the reluctance of the magnetic circuit changes, thereby generating an induction signal.

The signal is amplified and reshaped by the amplifier and sent to the counter or frequency meter. The total accumulated flow is displayed. At the same time, the pulse frequency undergoes frequency-voltage conversion to indicate instantaneous flow.

The speed of the impeller is proportional to the flow, and the number of revolutions of the impeller is proportional to the total amount of flow. The output of the turbine flowmeter is a frequency modulated signal. It not only improves the anti-interference of the detection circuit, but also simplifies the flow detection system.

The gas turbine flowmeter has a turndown ratio of up to 10:1, and the accuracy is within ±0.2%. The time constant of the turbine flowmeter with small inertia and small size can reach 0.01 second.

Liquid Turbine Flow Meter Working Principle

Liquid Turbine Flow Meter is a speed type flow meter based on the principle of torque balance.

The fluid flows through the sensor housing. Because the blades of the impeller have a certain angle with the flow direction. The impulse of the fluid makes the blades have a rotational torque. After the friction torque and fluid resistance are overcome, the blades rotate. The speed is stable after the torque is balanced.

Under certain conditions, the speed is proportional to the flow rate.

Due to the magnetic permeability of the blade, it is in the magnetic field of the signal detector (composed of permanent magnets and coils). The rotating blade cuts the magnetic lines of force. The magnetic flux of the coil is periodically changed. Electrical pulse signals are induced at both ends of the coil.

This signal is amplified and reshaped by an amplifier. A continuous rectangular pulse wave with a certain amplitude is formed. It can be transmitted to the display instrument remotely. The instantaneous flow or total amount of the fluid is displayed.

Within a certain flow range, the pulse frequency f is proportional to the instantaneous flow Q of the fluid flowing through the sensor. The flow equation is:

Where:
f——Pulse frequency [Hz]
k——The meter coefficient of the sensor [1/m3], which is given by the calibration sheet.
Q——The instantaneous flow of fluid (under working condition) [m3/h]
3600-conversion factor in seconds

The meter coefficient of each sensor is filled in the verification certificate by the manufacturer. The k value is set in the matching display instrument. The instantaneous flow and cumulative total can be displayed.

Know more about: Turbine type Flow Meter for Liquid & Gas technology

What is k factor in turbine flow meter?

The physical meaning of the meter coefficient K value of a turbine flowmeter is the number of pulses generated by a unit volume of fluid flowing through the flowmeter. Using the international system of units, the unit of the meter coefficient is (1/m3).

Generally, the K factor will not change when the flow rate changes, but it should not exceed the upper limit of the flowmeter too much. The K factor is a constant based on a flow rate under certain process parameters.

Extended reading: Turbine Insertion Flow Meter for Large Diameter Pipeline

How to get k factor on turbine flow meter?

There are two kinds of different manufacturers k:
One is k=f/Q, that is, the number of vortices generated per unit flow;
The other k=Q/f, that is, the plate flow rate corresponding to each vortex.
The k value is calibrated with the right factory water. The sensor measures the vortex number of the instrument and compares it with the volume flow measured by the calibration device to obtain the k value.

The k value is actually related to the internal mechanical structure of the flow meter measuring tube.
Taking k=f/Q as an example, the formula is as follows:

Where

D-measuring tube diameter
St-Strouhal number, constant within a certain range of Reynolds number
d—-The characteristic width of the vortex generator
m—The ratio of the arcuate area on both sides of the vortex generator to the cross-sectional area of ​​the pipe

In fact, this formula has no practical meaning for you. The values ​​of d and m are difficult to measure accurately. Therefore, it is difficult to obtain an accurate k value by calculation.

Extended reading: Turbine Flow meter Vs Gear Flow meter

Turbine Flow Meter Datasheet

Sino-Inst, as a manufacturer of turbine flow meters, provides customers with high-quality gas and liquid turbine flow meters. For the technical parameters of turbine flow meters, please refer to our Turbine Flow Meter Datasheet.

SI-Flow-liquid-turbineDownload

Liquid-Turbine-Flowmeter-ManualDownload

Turbine flow meter Advantages and Disadvantages

Turbine Meter Advantages

• The cost is moderate.
• Very good at clean, low viscosity fluids of moderate velocity and a steady rate.
• Turndown is very good as it can read very low compared to the greatest flow.
• They are reliable if put in a clean fluid especially if it has some lubricity.
• AGA and API approved for custody transfers.
• They do cause some pressure drop where that may be a factor such as gravity flows.
• High accuracy. Among all flowmeters, it is the most accurate flowmeter.
• No zero drift, good anti-interference ability.
• High accuracy. Among all flowmeters, it is the most accurate flowmeter.
• No zero drift, good anti-interference ability.

Turbine Meter Disadvantages

• Not reliable for steam.
• Bearings wear out.
• Requires constant backpressure to prevent cavitation.
• Accuracy adversely affected by bubbles in liquids.
• Turbine meters can be used with clean liquids and gases only (may need to install a strainer upstream to prevent damage from particulates).
• Not applicable for measuring corrosive fluids.
• May not function properly with high viscosity fluids where the flow profile is laminar.
• Cannot maintain calibration characteristics for a long time.

Guess you will like: Magnetic flow meter’s Advantages and Disadvantages

Turbine flow meter Applications

Turbine flow meters include liquid turbine flow meters and gas turbine flow meters.

The liquid turbine flowmeter is made of stainless steel and can be used to measure clean and low-viscosity liquids.
Such as water, alcohol, methanol, etc.;
Turbine flowmeter made of all tetrafluoroethylene can be used to measure all corrosive liquids such as acid, alkali, salt solution and so on.

The gas turbine flowmeter is mainly used to measure the instantaneous flow and cumulative flow of general clean gases such as natural gas, air, hydrogen, and nitrogen.

Turbine flow meter for measuring oil

Turbine flowmeters can measure media such as special oils.

There are many types of oils, such as edible oil, peanut oil, diesel oil, gasoline, etc. are all oils. Turbine flowmeters measure the flow of liquids, but it is not recommended to use them for too viscous liquids. Because the turbine flowmeter uses the principle of impeller rotation to measure the flow. And too viscous liquid will affect the rotation of the impeller.

Turbine flow meters can measure low-temperature and non-viscous special oils. If the site of the user’s working condition measurement is a special oil such as high temperature type. It is also impossible to use a turbine flowmeter to measure, and the turbine flowmeter can only measure the working temperature when the site ambient temperature is 160°C.

Flow measurement of some low-viscosity oil products, such as gasoline, kerosene, diesel oil, and flow measurement of heavy oil and residual oil whose viscosity has been reduced by heating.

Read More:

• Crude Oil Flow Meter
• Top 8 Types Petroleum Flow Meters for Oil and Gas Industry
• Mechanical Oil Flow Meters
• PD Flow Meters Selection and Application | Oil-Liquid
• Explore Oil and Gas Flow Meters
• Industrial Oil Flow Meters
• Fuel Flow Meter for Boat-Selection & Application
• Guide for Digital Fuel Flow Meter
• Mechanical Diesel Flow Meters for High Precision Measurement

Turbine Flow Meter for Cryogenic Liquids – Liquid Nitrogen, Liquid Oxygen

The low-temperature turbine flowmeter is a dedicated liquid nitrogen flowmeter. It can also be used to measure cryogenic liquids such as liquid oxygen.

Liquid nitrogen refers to Liquid with extremely low temperatures. In industrial production, liquid nitrogen can be used as a deep refrigerant. The low-temperature turbine flowmeter is used as a liquid nitrogen flowmeter, which can work at a low temperature of -196°C (-320.8 °F). Liquid Nitrogen Flow Meter’s Turbine sensor structure at ultra-low temperature (-196℃) is made of special customized material. Realize the instantaneous and cumulative flow monitoring of liquid nitrogen.

Quantitative control with turbine flowmeter

Quantitative control system is composed of flow totalizer, turbine flowmeter, solenoid valve and so on. The liquid output can be freely set through the linkage of the equipment. More accurate realization of material ratio. Improve production efficiency in an all-round way.

Its working principle is to provide a flow signal to the control instrument through the flow meter. Set the required quantitative value on the control instrument panel, and when the set quantitative value is reached, the solenoid valve, water pump, etc. will be automatically closed. The solenoid valve and water pump can be controlled at the same time, and can also be controlled separately. It can be widely used in food, pharmaceutical, fermentation, environmental protection, fine chemical and other industries.

Features:
1. Turbine flowmeter for quantitative control
2. Real-time display of flow information
3. Using high-precision impeller, the performance is more stable
4. 304 stainless steel structure, weak acid and alkali resistance, long service life
5. Aviation connector connection, stronger connection, more convenient disassembly

The flowmeter control system is mainly used in workshop batching, water distribution, dispensing, quantitative perfusion and timing and quantitative control of various liquids or gases.
In industrial and agricultural production and life, chemical raw materials such as solid-liquid mixtures (cement slurry, sludge, etc.) Quantitative control system. It can be operated very simply. It can meet the work of a large number of manpower and improve work efficiency.

Frequently
Asked
Questions

Help Center

What is a turbine flow meter?

Turbine flowmeter is to install a rotor in the circulation channel, when the liquid flows through it will drive the blades to rotate. Then the flow rate is measured according to the number of rotations.

The intelligent liquid turbine flowmeter is a new type of intelligent instrument that integrates the turbine flow sensor and display integration, which is developed using advanced ultra-low power single-chip microcomputer technology. It has the obvious advantages of compact structure, intuitive and clear reading, high reliability, no interference from external power supply, lightning resistance, and low cost.

How to calibrate a turbine flow meter?

Use the volumetric tank method to calibrate the turbine flowmeter.
The volume of the standard water tank is determined by filling the standard water tank with water, which is measured by a water tank calibrated and certified by the National Institute of Standards and Technology.

Regularly check the volume of these calibration tanks. Each flow meter and kit are placed in the assembly line, and the calibration tank is filled at five different flow rates within the range of the meter. One round is executed at the maximum rate, one round is executed at the minimum rate, and the three rounds are executed at an equidistant interval between the maximum rate and the minimum rate.

Record the total number of pulses generated by the flowmeter at each flow rate. Divide the total pulse by the total volume at each flow rate to determine the calibration factor. The average factor is determined to be half between the high factor and the low factor.

The flowmeter is marked with an averaging factor. For industrial grade instruments, the maximum deviation between the average coefficient and the upper or lower limit coefficient cannot exceed ±0.5%, and for standard grade instruments, it cannot exceed ±1.0%.

The above is the whole content of how to calibrate the turbine flowmeter. If you have any questions or purchase requirements, please contact Sino-Inst directly.

How does a Coriolis meter measure flow?

The principle of Coriolis mass flowmeter mass measurement is Newton’s second law F=Ma. When the fluid flows in the vibrating tube, it will produce Coriolis force proportional to the mass flow.

When there is no fluid flowing, the vibrating tube will not be twisted, and the signals detected by the electromagnetic signal detectors on both sides of the vibrating tube are in phase.

When fluid passes by, the vibrating tube will be twisted under the action of torque, and there will be a phase difference between the two detectors.

The transmitter measures the lag time between the left and right detection signals. This time difference is multiplied by the flow calibration coefficient to determine the mass flow.

The density measurement principle of Coriolis mass flowmeter is that the vibration frequency is inversely proportional to the square root of the fluid density. The fluid density is determined by measuring the vibration frequency.

Therefore, the mass flow meter can realize the measurement of fluid mass flow and the measurement of fluid density.

What are types of flow meter?

Flow Metering Principals

• Differential Pressure Flowmeters
• Velocity Flowmeters
• Positive Displacement Flowmeters
• Mass Flowmeters
• For Open Channel Flowmeters – weirs, flumes, submerged orifices, current meters, acoustic flow meters and more

For different working principle, We offer different types of flow meters, like:

• Differential Pressure Flow Meters
• Orifice Plate
• Venturi Tube
• Flow Nozzles
• The Sonic Nozzle – Critical (Choked) Flow Nozzle
• Calorimetric Flowmeter
• Ultrasonic Doppler Flowmeter
• Positive Displacement Flowmeter
• Variable Area Flowmeter or Rotameter
• Velocity Flowmeters
• Pitot Tubes
• Electromagnetic Flowmeter
• Turbine Flowmeter
• Vortex Flow Meter
• Thermal Flowmeter
• Coriolis Flowmeter
• Mass Flowmeters
• Open Channel Flowmeters

More Liquid and Gas Flow Meters

More Flow Measurement Solutions

Sino-Inst, Manufacuturer for Turbine Flow Meters, like: gas turbine flow meter, liquid turbine flow meter, sanitary turbine flow meter, insertion turbine flow meter, steam turbine flow meter, and natural gas turbine flow meter.

Sino-Inst’s Turbine Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, 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

Steam flow measurement has always been a problem. Today we solve a problem of temperature and pressure compensation. So Do you need temperature and pressure compensation for Steam Flow Measurement?

There are two types of steam, saturated steam and superheated steam.
The temperature and pressure compensation is superheated steam. For the real saturated steam, only temperature or pressure compensation is required. Check the density table according to the temperature and pressure during measurement to obtain the required mass flow.

Generally speaking, vortex flowmeter manufacturers will provide saturated and superheated steam mass flow range tables for users to select.

In the actual measurement, due to changes in working conditions, saturated steam and superheated steam are willing to deviate from the original design. It will change the relationship between steam temperature and pressure to obtain its density. Affect the accuracy of measurement.

Wet saturated steam

When the vortex flowmeter is installed behind the pressure reducing valve. The wet saturated steam suddenly decompresses greatly. The fluid undergoes adiabatic expansion. The water droplets partially evaporate. At the same time, the heat of vaporization is absorbed from the liquid and vapor phases. Reduce the vapor and liquid phase temperature.

If the temperature does not drop much or the humidity is high before evaporation, the temperature will quickly drop to the saturation temperature corresponding to the new pressure. Create a new balance. At this time, the steam is still saturated steam.

If the pressure drops a lot or the humidity is low before evaporation. After the temperature is lowered due to the evaporation of water droplets, it is still higher than the saturation temperature corresponding to the new pressure. The steam becomes superheated steam.

Superheated steam

In the flow calculator, the mass flow can be calculated according to the density of the superheated steam temperature and pressure. But when the superheated steam is transported over a long distance. Or due to improper pipe insulation measures. Often due to the decrease in heat loss temperature, it will enter the critical saturation state from the overheating state. Even part of the steam condenses and undergoes a phase change to become water droplets. At this time, it becomes wet saturated steam (supersaturated steam).

Read more about: Condensate Flow Meter-Steam Condensate Flow Meter|Types & Selection Guide

Featured Flow Meters for Steam Flow Measurement

Vortex flow meter for Steam Flow Measurement

The output of the vortex flowmeter is only proportional to the flow rate of the fluid flowing through the measuring tube. When measuring the humidity of saturated steam, the influence of water droplets on the output of the vortex flowmeter is negligible. Therefore, it can be considered that the output of the vortex flowmeter is completely caused by the dry part (saturated part) of the wet and saturated steam. The density of the dry part can be accurately detected according to pressure compensation or temperature compensation.

When steam metering, if the two parties agree to settle the cost based on the dry part of the steam, there is no charge for condensate. The influence of the phase change on the measurement is negligible and can be ignored. If the condensate is also charged as steam. The measurement result of the vortex flowmeter is low.

After the above evaporation occurs, the former has no effect on compensation. Only the dry part in the steam increases, and the dryness increases accordingly.

In the latter case, the wet saturated steam becomes superheated steam. At this time, the impact on the flowmeter is divided into the following three situations:

1. The design has taken into account that the steam becomes superheated. Or in what state is difficult to determine. Or sometimes it is overheated and sometimes it is saturated. So use temperature and pressure compensation. Then the above-mentioned phase change has no influence on the measurement result.
2. Consider saturated steam when designing, and adopt pressure compensation. Then the above-mentioned phase change will bring a smaller error. That is, the compensation error caused by the density difference corresponding to the difference between the superheated steam temperature and the saturated steam temperature.
3. Consider saturated steam when designing. But use temperature compensation. That is, the superheated steam temperature is regarded as the saturation temperature to check the density table. Generally, large errors will be caused.

There are three ways to solve the above problems:

1. Install the total steam flow meter before the pressure reducing valve. Because the above steam is not decompressed. There is no phase change problem. So install the flowmeter before the pressure reducing valve. According to the saturated steam compensation method. The measurement accuracy can be guaranteed.
2. If the flow meter can only be installed behind the pressure reducing valve. A pressure transmitter can be added for temperature and pressure compensation.
3. If the stability of the pressure reducing valve is better. The upstream pressure value of the flowmeter can be set as a constant value into the display instrument for temperature and pressure compensation.

• Flow Measurement Units-What Is GPM in Flow Meter?
• What Is a BTU Meter?
• Flow Rate and Pressure Relationship-How to Calculate?
• Water Flow Measurement for Pipes and Open Channels
• Industrial Helium Flow Meters
• 6″ Flow Meters List | 6 Inch- DN150 Connection
• What Is Vortex Flow Meter? and FAQs
• Guide to Pulse Flow Meters: Must Know Before Shopping!
• What Is Turbine Flow Meter? and FAQs
• What Is a Thermal Mass Flow Meter?

Sino-Inst, Manufacuturer for Steam Flow Measurement Flowmeters.

Sino-Inst’s Steam Flow Measurement Flowmeters, made in China, Having good Quality, With better price. Our Steam Flow Measurement instruments are widely used in China, India, Pakistan, 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

When you need to measure oil flow, do you also encounter a problem: Turbine Flow meter Vs Gear Flow meter? How to choose?

Turbine flow meters and gear flow meters are commonly used flow meters. Although there is only one word difference literally, there are still different essential differences between the two.

RFQ Flow Meters

Turbine 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.

Know more about: Turbine type Flow Meter for Liquid & Gas technology

Gear Flow meter

Oval gear flowmeter is a precision instrument used to measure liquid flow. It is a direct reading cumulative meter. It is a positive displacement flow meter that measures the sum of the liquid flow through the pipeline.

The oval gear flowmeter can choose two counting mechanisms: mechanical display meter and electronic display meter. The display meter has the functions of displaying cumulative flow, instantaneous flow, and zero return. It can realize on-site display and remote control.

For different measuring media (acid, alkali, organic liquid, oil, food, etc.), the flowmeter can be made of different materials (cast steel, stainless steel, and 316). It is suitable for flow measurement in chemical, petroleum, pharmaceutical, electric power, metallurgy, and food industries. Extended reading: Cylinder Gear flow meter for micro flow measurement.

Read more about Everything You Need To Know About Electronic Flow Meters

Let’s sort it out for everyone:

Turbine Flow meter Vs Gear Flow meter

1. Different measurement principles:

The liquid turbine flowmeter is a velocity flowmeter. The accuracy is 0.5%, which can be improved to 0.2%. The material of the watch body is generally stainless steel. According to site requirements, explosion-proof products can be made.

Oval gear flowmeter is a positive displacement flowmeter. The accuracy is 0.5%. Oval gear flowmeter is a purely mechanical mechanism. When the rotor of the flowmeter rotates, it drives the rotation of the counter to generate a cumulative total. Oval gear flowmeters are especially popular on occasions where explosion-proof requirements are relatively high.

2. Requirements of the working pressure:

The working pressure of the oval gear flowmeter is generally not large, 1.6Mpa. Using cast steel material, it can reach 2.5Mpa.

In contrast, turbine flowmeters are easier to make into high-pressure products. The maximum pressure of the high-pressure turbine flowmeter can reach over 25Mpa.

Requirements for low working pressure:

Turbine flowmeter does not have much requirement for the low working pressure in the pipeline, basically, it can be measured when the medium flows through it.

However, oval gear flow meters have higher requirements for small working pressures. Because of the different calibers, the pressure required to push the flowmeter rotor to work is different. The small working pressure required from small diameter to large diameter is between 0.3~0.8Mpa.

Extended reading: Positive displacement flow meter working principle

3. The influence of working temperature:

The maximum working temperature of the turbine flowmeter is 120°C. The maximum working temperature of the oval gear flowmeter is 160℃.

4. The difference of applicable media:

Water, solvents, light oils, etc. can be well suited for liquid turbine flow meters, but media with too high viscosity are not suitable.

The elliptical gear flowmeter is generally suitable for oily media. The viscosity of the applicable medium is higher than that of the turbine flowmeter. The greater the viscosity of the medium, the higher the accuracy.

For some corrosive media, both types of flowmeters can partially measure.

But the stainless steel oval gear flowmeter is not cost-effective. And for water and some electrolyte solutions, oval gear flow meters cannot be used. Because the internal mechanical parts are easily damaged by water.

Extended reading: Turbine flow meter Applications

Turbine Flow Meter Application Case: Demineralized Water.

5. Requirements on the installation site:

As a positive displacement flowmeter, the elliptical gear flowmeter has relatively low requirements for the straight pipe sections before and after and basically has no requirements for straight pipe sections.

The turbine flowmeter, as a velocity flowmeter, has higher requirements for the front and rear straight pipe sections. Especially for some small diameter turbine flowmeters, a corresponding straight pipe section must be matched.

Extended reading: Turbine Insertion Flow Meter for Large Diameter Pipeline

6. The difference between display and signal output:

The mechanical meter head of the oval gear flowmeter displays the cumulative amount. To display the instantaneous flow, you need to output a signal, and the matching secondary instrument displays the instantaneous flow value.

Turbine flowmeter can display instantaneous flow and accumulated flow on-site, and can also output with the remote signal.

7. The problem of maintaining accuracy:

The accuracy of turbine flow meters and oval gear flow meters cannot be maintained for a long time. In order to maintain the accuracy of the flowmeter, it must be calibrated regularly.

You may need to measure the flow of lubricating oil, diesel, fuel, hydraulic oil, etc.
Combine the above points and your requirements. You should be able to decide which flow meter to choose. If you still have technical questions, please contact our sales engineers in time.

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

Turbine Flow Meter Specification

Turbine Flow meter Vs Gear Flow meter working principle

About the working principle of Turbine Flow meter Vs Gear Flow meter. I think the following video provides a good explanation. let’s look at it together:

Turbine Flow Meter Advantages and Disadvantages

Advantages:

1. High precision. Generally up to ±1%R, ±0.5%R.
2. Output pulse frequency signal. It is suitable for total measurement and connection with computer. No zero drift, strong anti-interference ability.
3. The structure is compact and lightweight. Easy installation and maintenance. Great flow capacity.
4. Good repeatability, short-term repeatability can reach 0.05~0.2%. It is because of good repeatability. Frequent calibration or in-line calibration results in extremely high accuracy.
5. There are many types of special sensors. It can be specially designed according to user needs. Such as: low temperature type, bidirectional, downhole type, special type for sand mixing, etc.
6. The pressure compensation can be performed under the stable pressure state of the measured gas.
7. The range is wide, the medium and large diameters can reach 1:20, and the small diameters are 1:10.

Disadvantages:

1. Regular calibration is required. There is no way to maintain accuracy for long periods of time. Cannot work continuously for a long time.
2. Higher requirements for the cleanliness of the medium. But filters can be installed.
3. The flowmeter is greatly affected by the flow velocity distribution of the incoming flow (a flow regulator can be installed).
4. It is not suitable for places where the flow rate changes rapidly.
5. Not suitable for testing corrosive media.

Turbine Type Flow Meter Installation Guidelines

In order to ensure the accurate measurement of the turbine flowmeter, the installation location and method must be selected correctly.

1. Requirements for straight pipe sections:
   • The flowmeter must be installed horizontally on the pipeline (the inclination of the pipeline is within 50), the axis of the flowmeter should be concentric with the axis of the pipeline during installation, and the flow direction should be consistent.
   • The length of the upstream pipeline of the flowmeter should have an equal diameter straight pipe section of not less than 2D. If the installation site is allowed, it is recommended that the upstream straight pipe section is 20D and the downstream is 5D.

2. Requirements for piping:
   The inner diameter of the upstream and downstream piping at the installation point of the flowmeter is the same as the inner diameter of the flowmeter.
3. Requirements for bypass pipes:
   In order to ensure that the normal use of the medium is not affected during the maintenance of the flowmeter, a cut-off valve (stop valve) should be installed on the front and rear pipelines of the flowmeter, and a bypass pipeline should be set at the same time. The flow control valve should be installed downstream of the flowmeter. When the flowmeter is used, the shut-off valve installed upstream must be fully opened to avoid unstable flow of the fluid in the upstream part.
4. Requirements for the external environment:
   The turbine flowmeter is best installed indoors. When it must be installed outdoors, sun protection, rain protection and lightning protection measures must be adopted to avoid affecting the service life.
5. Requirements for impurities contained in the medium:
   In order to ensure the service life of the flowmeter, a filter should be installed before the straight pipe section of the flowmeter.
6. Installation site:
   The flowmeter should be installed in a place that is easy to maintain and free from strong electromagnetic interference and heat radiation
7. Requirements for installation and welding:
   The user can configure a pair of standard flanges to be welded on the front and rear pipes. Welding with flow meter is not allowed!
   Before installing the flowmeter, the welding slag and other dirt in the pipeline should be strictly removed. To ensure that the flowmeter is not damaged during use.

More Flow Measurement Solutions

This article “Turbine Flow meter Vs Gear Flow meter”, Sino-Inst provides you. Please indicate the source!

Sino-Inst, Manufacturer for Turbine Flow meter & Gear Flowmeters, like gas turbine flow meter, liquid turbine flow meter, sanitary turbine flow meter, insertion turbine flow meter, steam turbine flow meter, and natural gas turbine flow meter.

Sino-Inst’s Turbine Flow meter & Gear Flow meter, 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

What is a Positive Displacement Flow meter?

Positive displacement flow meters are referred to as PD flow meters or PDF. They are the most accurate type in flow meters. Volumetric flow measurement uses a fixed small volume to repeatedly measure the volume of fluid passing through the flowmeter. It uses mechanical measuring elements to continuously divide the fluid into a single known volume part. The total flow volume is measured according to the number of times that the metering chamber is filled and discharged with the volume part of the fluid successively and repeatedly.

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Volumetric Flow Meters

Positive Displacement Flow Meter Working Principle

In principle, PDF is a hydraulic engine that absorbs a small amount of energy from the fluid. This energy is used to overcome the frictional force of the flow detection element and the rotation of the accessories. At the same time, a pressure drop is formed at the inflow and outflow ends of the meter.

The working principle of a typical PDF (gear type) is shown in Figure 1.

The two shank round gears have a special shape that rolls to each other and rotates in contact.
P1 and p2 represent the inlet pressure and the outlet pressure respectively, obviously p1>p2.

Figure 1(a) The lower gear is under the action of the two pressure differences. Produce counterclockwise rotation, which is the driving wheel;
The upper gear has equal pressure on both sides. It does not produce a large rotating moment and is a driven wheel. Driven by the lower gear, it rotates clockwise.

In the position of Figure 1(b), both gears generate a rotational torque under the action of differential pressure and continue to rotate.

When rotating to the position in Figure 1(c), the upper gear becomes the driving wheel. The lower gear becomes the driven wheel. Continue to rotate to the same position as Figure 1(a) to complete a cycle.

One cycle action discharges the fluid volume of the four crescent-shaped cavities enclosed by the gear and the shell wall. This volume is called the “circulation volume” of the flow meter.

Suppose the circulation volume of the flow meter is u, and the number of gear rotations in a certain period of time is N. Then the volume of fluid flowing through the flowmeter during this time is V,

Then V=Nu(1)

The rotation of the Nanyuan gear is transmitted to the counter through the magnetic seal coupling and the transmission reduction mechanism to directly indicate the total amount flowing through the flowmeter.

If the sending device is attached and then equipped with an electric display instrument, it can realize that the remote transmission is only the instantaneous flow or the cumulative flow.

Although there are many segmentation methods to form various forms of PDF, most of them have similar basic characteristics.

The main reason for the PDF error is the leakage of the gap between the movable measuring piece and the static measuring chamber that divides a single fluid volume.

One of the reasons for leakage is to overcome the frictional resistance of moving parts. The second is the effect of pressure drop formed by the hydraulic resistance of the instrument.

Converter Tool: Volumetric Flow Rate & Pipe Diameter to Flow Speed Calculator

Positive displacement flow meter types Accuracy

PDF has high measurement accuracy, the basic error is generally ±1%R, and the special one can reach ±0.5%R or higher. Usually used in expensive media or where precise metering is required.

PDF has no effect on the metering accuracy when the flow velocity field of the rotating flow and the pipe blocker is distorted, and there is no requirement for the straight pipe section in front. This is of great significance in field use.

PDF can be used for the measurement of high viscosity fluids. The range is wide, generally 10:1 to 5:1, and special can reach 30:1 or more.

PDF is a direct-reading instrument that does not require external energy, and can directly obtain the cumulative total, which is clear and easy to operate.

Positive displacement flow meter types

There are many types of PDF, which can be classified according to different principles. According to the structure of the measuring element, there are the following types:
1) Rotor type
2) Scraper type
3) Rotating piston type
4) Membrane type, etc.

Read more about: Types of positive displacement flow meter

Positive displacement flow meter advantages and disadvantages

Read more about Mass Flow Rate vs Volumetric Flow Rate

Use and Maintenance

1. The volumetric flowmeter should be installed and used in accordance with the standard flow range, nominal pressure and flow direction marks on the nameplate.
2. The positive displacement flowmeter should work under the condition that the fluid temperature is -20~+120℃ and the ambient temperature is -20~+55℃ and the relative humidity of the environment is not more than 80%.
3. When the positive displacement flowmeter leaves the factory, it is calibrated with water at room temperature. If the measured fluid is different from the water at room temperature,the constant should be corrected or re-calibrated with the actual measured fluid, but for fluids with a viscosity less than 5×10-6m2/s (5Mpa.s), there is no need to re-calibrate.
4. Under normal circumstances, the service life of positive displacement flowmeters is generally from six months to one year, depending on the severity of the working conditions. And should be removed and washed regularly. If the shaft or bearing is found to be severely worn, it should be replaced and re-calibrated.

Extended reading: Cylinder Gear flow meter for micro flow measurement.

sanitary positive displacement flow meter

The Sanitary Positive Displacement Flow Meter is made of stainless steel and is quickly connected by Tri-clamp. Can be used to measure viscous liquids in the food industry. Such as sweeteners, edible oil, palm oil, honey, fat, tallow, fat, syrup, molasses, etc.

positive displacement gas meter

Gas Roots flowmeter is an instrument that accurately measures gas flow, based on the principle of volumetric measurement. For accurate metering of gas flow through closed pipes.

The flowmeter is composed of two parts: Roots flow sensor and display instrument. It can be used to measure non-corrosive gases such as natural gas, city gas, propane, nitrogen, and industrial inert gases. Mainly used in gas business settlement in catering, hotel and other industries. Gas metering for transmission and distribution network, gas pressure regulating station metering, industrial and civil boilers and other gas metering. Can also be used as a standard flow meter.

positive displacement flow meter for natural gas

Rotary positive displacement gas flow meter is mainly composed of flow meter body, rotating element, electronic display device or mechanical display device.

There is a metering chamber within the housing of the flowmeter. There are one or two pairs of rotating elements that can rotate tangentially.

A pair of drive gears are mounted coaxially with the two rotating elements outside the flowmeter housing. They mesh with each other. Thereby, the mutual linkage of the two rotating elements is realized.

For each revolution, a fixed amount of gas is expelled.

The number of revolutions of the rotating element is recorded, based on the volume of the metering chamber space (cycle volume). The volume of gas flowing through the flowmeter can be obtained.

Positive displacement flow meter vs turbine

A turbine flowmeter has the characteristics of simple structure, lightweight, simple maintenance, and adaptability to high parameters (high temperature, high pressure, and low temperature). Turbine flowmeters are currently mainly used in the measurement of natural gas, coal gas, petroleum, organic liquids, inorganic liquids, cryogenic fluids, liquefied gas, and other media.

So is the turbine flowmeter a positive displacement flowmeter?

A turbine flowmeter is not a positive displacement flowmeter, but a velocity flowmeter. Turbine flow meters, positive displacement flow meters and Coriolis mass flow meters are three types of flow meters with excellent repeatability and accuracy.

Read more about Turbine Flow Meters

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Extended reading: Integral DP Flow Meter|Gas, liquid, steam|Compact structure

Sino-Inst, Manufacturer for Positive Displacement Flow Meters. For example crude oil flow meter, diesel flow meter, gasoline flow meter.

Sino-Inst’s Positive Displacement Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, 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.

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