Currently, there is an urgent need to ensure reliable accounting of received or released oil products. The supply of metering devices on the market is not enough, and the correct choice of the required device is very relevant, since accounting for the distribution and pumping of fuel is required throughout the entire delivery route, when lifting oil raw materials, transportation, subsequent processing, from the manufacturer to the gas tank of the car.

Higher requirements are imposed on the quality of such devices, while there is a huge range in price. How to choose the right dedicated meter for tough operating conditions? We suggest that you familiarize yourself with the important characteristics that affect the performance and quality of devices.

How does a flow meter work?

The calculation and determination of the consumption of gasoline, diesel fuel, oil and similar products is determined by some physical phenomena: the Coriolis effect, ultrasonic pulses. The devices work on the basis of various types of measurements, these are rotary-type devices, and oval-gear mechanisms with the participation of reed switches, electromagnetic flowmeters with electromagnetic induction, rotameters with a float.

Let's try to figure out what kind of counters there are, which devices are better, and which ones are more accurate, and why? A short overview of the most important characteristics will give you an idea of ​​what to look for when buying.

Device typePPVPPOULTRASONIC
Accuracy class0,25/0,50,25/0,51,0/1,5
Consumption (m³ / h)5...4200,5...250,1...529200
Passage diameter (mm) 100/15025/4010...4200
Liquid temperature (ºС)-50...+50-40...+60-30...+160
Maximum pressure (MPa)1,6/6,41,6/0,62.5
Medium viscosity (cSt)0,55...3000,55...300up to 500

Mechanical metering devices

This type of device is used for accounting and control of light oil feedstock and has some installation features. Sensor units and controllers require a solid base, without vibration or shaking, otherwise the information will be distorted. Existing magnetic and electric fields also have a negative impact on the accuracy of the instrument.

The measuring medium must not contain excessively viscous and rigid particles, fibrous compounds that settle on the screw mechanisms and impede the normal flow of the flow.
The rotary screw apparatus, or SZh PPV, can also be used for non-aggressive viscous liquids, with a temperature of -40 ° C to + 50 ° C and a working pressure of up to 1.6 and 6.4 MPa.
Rotary meters are installed in permanent and ground mobile stations; exposure to direct ultraviolet and heat rays and precipitation is not allowed.

During operation, a pair of meshed screw elements turn from the flowing liquid and measure the amount.The rotation of the blades in the clutch is transferred to the counting mechanism and converted into volume units. The mechanism is equipped with an intelligent processing unit DI-O-5, which allows processing and transmitting information to a working computer via a specialized interface.

The device with oval elements, or SZh PPO, can control the consumption of light oil feedstock, as well as liquefied gas and other non-aggressive feedstock. Improved measuring ability (accuracy 0.5% or 0.25%) of the device allows the flowmeter to be used in viscous media (up to 300 cSt), it can also be equipped with a mechanical counter.

In the process of operation of the mechanism, a pair of movable interlocking gears rotate and measure the amount of liquid. The counting mechanism reads the number of rotations and converts them into units of measurement. The intelligent processor unit converts and transmits the received information via the interface.

Petroleum meters are supplemented with:

  • a calculating device (SU) for converting the rotational movements of the gears in the clutch;
  • a block that records the flow rate and displays the value on the display;
  • a universal programmable controller (PCC) that transmits data on fluid consumption to a computer.

The disadvantage of gear or screw devices is the presence of moving parts that interact with the working environment. They wear out mechanically and require periodic maintenance. Flow control can only take place on the instrument scale; there is no way to receive information remotely. Reliable and long-term operation requires the installation of a fine filter FZHU-25, which prevents contamination of the flow meter with mechanical impurities.

Ultrasonic metering mechanisms of petroleum products with pulse output

Designed for commercial and technical control and metering of light petroleum liquid substances, including fuel oil, water, oils up to 6 cSt in the energy sector, petrochemical and food industries, and utilities. The device collects data under various operating conditions, even in areas of increased explosiveness, with a constant and reverse flow direction in metal as well as plastic pipes.

The flow meter records the following parameters:

  • average consumption volume;
  • forward and reverse flow rates;
  • date and time for the period of taking the fuel dose;
  • automates work with a metered volume;
  • stores the received information in electronic memory, displays the archived values ​​of volumes, failures,
  • emergency situations;
  • performs self-diagnostics and controls non-standard situations;
  • independently corrects the data on the density and viscosity of the working substance under pressure and temperature drops.

During operation, a pair of piezo emitters exchange ultrasonic signals through a directed liquid flow. The ultrasound is converted into electrical impulses and sent to a secondary device, which takes into account the time the signal pulse travels upstream. Based on the data obtained, the momentary flow rate and the volume passing through the meter are calculated.

Ultrasonic flow meters have several advantages:

  • the absence of moving units makes the structure not subject to wear and tear and provides high strength;
  • the option of interruptions in the operation of moving units as a result of jamming is excluded;
  • does not change the composition of the measured substance, which is especially important for food products;
  • provides hydraulic resistance at a minimum value;
  • made of stainless steel, which makes it possible to use it for accounting for aggressive environments.

The disadvantage is measurement distortion in the presence of sediment in the pipeline, which absorbs or reflects the ultrasonic wave.

The use of a certain type of counters is determined by the specifics of the conditions.
Mechanical devices PPV, PPO of the best manufacturers are well suited for petroleum substances with low viscosity and low temperature index.At the same time, they have a high hydraulic resistance of the path, which increases with an increase in the flow viscosity index.

Ultrasonic flow meters have a wide variability of pipe diameters, measured flow rates of substances, permissible temperatures, can be used in more viscous substances, measure reversible flows, and have a wide range of service settings.

Features of accounting for fuel oil arise due to the high degree of viscosity at ordinary temperatures. A decrease in the indicator is achieved by heating the liquid to 90-120 ° C, which makes it impossible to use mechanical devices. To account for gasoline, kerosene, fuel oil liquids, the type of calculating device is selected not only according to technical indicators, but also by the options for the movement of medium flows.

Before buying, carefully study the range of options offered. The online stores provide descriptions and detailed instructions for the installation and correct use of calculating devices, from inexpensive ones used at home to multifunctional industrial models. Having decided on the necessary parameters, you can compare how much this or that option costs and order online. Our recommendations will help you make the right choice of high-quality and reliable models.

Rating of popular models of mechanical metering devices for petroleum products

Parameter"BelAK"Piusi K33OGM-25
Dimensions200*180*170150*150*170200*100*100
Weight (kg)222
Flow rate (min-max) (l / min)20-12020-12020-120
Working pressure (max) (atm)181018
Working temperature (ºС)up to +70-30...+50-25...+80
approximate price13216117268200

3. "BelAK"

A high-precision device for measuring pumped liquids quickly and efficiently takes into account the quantitative volumes of diesel fuel, kerosene, gasoline, other oil products and non-aggressive substances. The budget series is suitable for the equipment of small petrol stations, car fleets and motor vehicle fleets.

The two oval rotors do not determine the flow rate, but its volume. The metal mechanism can be mounted horizontally and vertically, complemented by a fine-dispersion filter to retain solid, damaging flow particles. There is a resettable unit flow scale and a non-resettable scale for total counting.

BelAK
Advantages:
  • measurement accuracy;
  • a wide range of fluids used.
Disadvantages:
  • does not have a factory calibration;
  • high price.

2.Piusi K33

The combined body of the Italian flowmeter is made of durable plastic and aluminum alloy. It is used with pumping equipment, the performance of which does not exceed the capabilities of a mechanical meter. If the operating conditions are observed, a minimum measurement error is guaranteed.

The first three-digit indicator shows the volume of the current filling and is reset by a button on the mechanism. The second six-digit scale has no reset values ​​and shows the entire displacement filled during the period of operation of the device. The inlet is opposite the outlet.

Piusi K33
Advantages:
  • calibration mechanism.
Disadvantages:
  • only for diesel fuel;
  • high price.

1. OGM-25

The Russian company "Ampika" designs, develops and produces interesting novelties, as well as well-known and well-proven high-quality pumping mechanisms in accordance with GOST standards and with quality certificates.

The mechanical device is designed to account for oil, diesel fuel, kerosene, glycerin and other types of substances that are not aggressive for the material of the device. The use of oval rotors allows for high-precision measurements at different viscosity characteristics of the pumped substances.

The cast shell of the mechanism is made of reliable aluminum, the moving rotors made of PPS have a long service life. A pair of digital displays show the total, non-zeroing expense, and a one-time, which can be reset.

OGM-25
Advantages:
  • there is a precise factory setting for diesel raw materials, no additional adjustment is required;
  • cheaper than similar meters;
  • impossibility of recalibration to overestimate readings.
Disadvantages:
  • not.

Rating of quality turbine flow meters

ParameterAmpika TF 11/2PETROLL 18Piusi K24 EX
Dimensions230*100*100230*100*100115*160*135
Weight (kg)0.40.31.1
Flow rate (min-max) (l / min)38 — 38020 — 1207 — 120
Working pressure (max) (bar)201020
Working temperature (ºС)-10...+50-10...+50-25...+50
approximate price17200352525420

3.Ampika TF 11/2

The electronic device has a combined housing - the flow path of the device is made of aluminum material, and the turbine is made of Teflon material. Therefore, a mechanical flow meter can measure various fuels and lubricants: diesel, kerosene, gasoline, as well as some solvents (acetone).

There is a clear display that starts working automatically when a button is pressed: the first line shows the current measurement, the second line shows the cumulative flow. The lightweight and compact device attaches directly to the gun, which customers say is a handy addition.

Ampika TF 11/2
Advantages:
  • the ability to change the calibration settings with your own hands;
  • small size.
Disadvantages:
  • high price.

2.PETROLL 18

High quality electronic turbine flow meter. Suitable for control at an enterprise that sells kerosene and diesel fuel, gasoline. The device has a minimum measurement error of 20 mm per liter.

On the electronic board there is an indicator of the volume of a one-time and total, a calibration factor. The device remains operational at temperatures down to -10 ° C. The flowmeter's aluminum housing reliably protects the electronic meters and display. The compact size of the device allows it to be mounted on a fuel truck. The AAA-1.5 V power supply allows the meter to work in autonomous mode for a long time.

PETROLL 18
Advantages:
  • battery life is 9000 hours per year;
  • low price.
Disadvantages:
  • sensitive to external electrical signals.

1.Piusi K24 EX

The mechanism is made by an Italian manufacturer, protected from explosive atmosphere. Controls low-viscosity substances - gasoline, kerosene, diesel fuel. The functional of the device saves the settings and remembers the total volume of the transported substance.

The kit includes a high-capacity battery, thanks to which a long autonomous mode is maintained. When the battery power is low, a warning message is displayed on the screen. Works without interruption at low temperatures down to -25 ° C. The two scales for unit and total are supplemented with flow rate values.

The durable and lightweight aluminum alloy case protects the inner movement from sunlight and rain. The device has a memory and stores information about the entire volume of released oil products even in the absence of power supply. The measuring electronics and LCD monitor are protected by a special sealed cover.

Piusi K24 EX
Advantages:
  • the description contains detailed operating instructions;
  • easily attaches to the fuel gun;
  • informative LCD display;
  • possibility of calibration.
Disadvantages:
  • high price.

Rating of popular industrial meters

ParameterGespasa MGE 110 HIGespasa MGE 400Petroll FM-I-100
Dimensions126*127*150193*145*141440*340*570
Weight (kg)1.54.346
Flow rate (min-max) (l / min)5 — 11015-400160-1600
Working pressure (max) (atm)404516
Working temperature (ºС)-25...+60-25...+30-40...+60
approximate price609266109097600

3.Gespasa MGE 110 HI

The Spanish brand movement with a durable aluminum alloy casing protects the electronic part from damage. The memory device is non-volatile - after removing the battery, all data on the initial parameters and the amount of pumped liquid are saved. The battery has a long service life of approximately 4 years.

The multifunctional liquid crystal display shows several measurement options: to hundredths, tenths and whole fractions. The scale of the total fuel consumption is not reset to zero, and the scale of the single consumption is reset to zero for each fuel supply.

The flow meter monitors fuels and lubricants and oil substances. The meter has the function of dispensing liquid. The device displays the value of a one-time refueling, and when the required value is reached, the dispenser of the mechanism stops supplying gasoline. The flow meter automatically turns on and off the pump for supplying fuels and lubricants.

Gespasa MGE 110 HI
Advantages:
  • wide display functionality;
  • automated release of fuels and lubricants;
  • long battery life;
  • information screen;
  • warranty period is 24 months.
Disadvantages:
  • not.

2.Gespasa MGE 400

A reliable electronic meter from a Spanish manufacturing company can measure diesel fuel or oil with high precision. The sturdy aluminum housing protects the internal mechanism from damage. The large electronic display shows the following information: low battery, total counter indicates maximum volume, partial counter indicates unit consumption.
A high performance battery can last for approximately 5 years. When the charge is reduced and the battery is replaced, the readings are not reset, but stored in memory.

The flowmeter is connected to high-performance pumps, can carry out accounting of fuels and lubricants at professional enterprises, warehouses of fuels and lubricants, and in organizations that regularly monitor fuel substances.

Gespasa MGE 400
Advantages:
  • step-by-step instructions for the entire working cycle;
  • low price;
  • high-precision instrument;
  • there is a possibility of calibration;
  • 2 years or 500,000 hp warranty
Disadvantages:
  • not.

1.Petroll FM-I-100

Petroll is a Russian brand that produces certified products for pumping fuels and lubricants. Produces both budget models and high quality semi-professional movements.

The body of the accounting mechanism is made of metal, has a flange connection + thread, the mechanism is represented by moving oval gears. There are two scales - zero, for a one-time consumption, and non-zero, for calculating the total volume.

Measures gasoline, kerosene, diesel fuel. High performance makes it possible to use the device at large accounting nodal enterprises and warehouses, as well as an excellent option for installation in a pipeline.

Petroll FM-I-100
Advantages:
  • the possibility of calibration;
  • strong connection.
Disadvantages:
  • high price.

Criteria for Selecting the Correct Accounting Device

  1. You should immediately decide on the liquid for which the device is purchased.
  2. Inexpensive mechanical options have more error, but they are not afraid of severe frosts. Electrical types of devices have a lower measurement error, but interruptions in operation at negative temperatures may occur.
  3. Consider the convenience of the model: its size, weight, location.
  4. A careful examination will determine the reliability and durability of this device. A bonus will be instructions for the correct operation of the device, information on how to change the battery yourself and how to calibrate the device.
  5. Study reviews and advice from other buyers, this will help to complete an informative picture about this device and help avoid mistakes when choosing.

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