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Oval gear flowmeter EMIS-DIO 230L

For measuring the volume and volumetric flow rate

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  • Product description
  • Application
  • Technical parameters
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Product description

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Flowmeter with oval gers

The meter is designed to measure the volume and volumetric flow rate of liquids with viscosity of up to 2000 mPa·s. The meter is used for commercial and corporate accounting in the petrochemical industry, as well as at other facilities where it can be used under operating conditions.

Oval gear flowmeter EMIS-DIO 230L

The Rotary liquid flowmeter EMIS-DIO 230L is applied as:

  • liquefied gas meter;
  • counter of gasoline, kerosene and other light oil products;
  • diesel fuel meter;
  • bitumen counter.

The flowmeter EMIS-DIO 230L is also applied for other liquids on the Fuel & Energy Complex establishments.


Rotary liquid flowmeter EMIS-DIO 230L is applied to measure the liquid flow rate, such as petrol, diesel, oil, fuel oil, and other liquids with different viscosity parameters. It is an optimal flowmeter if:

  • no opportunity to provide the straight run;
  • the flow measurement is desired without external power supply;
  • it is necessary to measure very viscous fluid flow, including fuel oil;
  • there is large Dn up to 200 mm and high pressure up to 6,3 MPa, where standard meters cannot be used
  • it is necessary to measure the medium with wide temperature range

Common tasks:

  • measurement the flow rate of crude oil and water сut oil on the oil-wells;
  • measurement the flow rate of oil products on the oil refining and tank farms facilities at the pumping;
  • measuring during loading/discharge of tank car and other reservoirs during transportation;
  • measurement during refueling of vehicles, as well as fuel consumption;
  • dosing of liquids at oil, petrochemical, food, pharmaceutical and other industries facilities
  • as a master flowmeter in the stationary verification stands and mobile provers;
  • accounting for the flow rate of highly viscous liquids, fuel oil.
Technical parameters

Характеристика Значение
Измеряемая среда жидкость (нефть, нефтепродукты, мазут, битум и т.д.)
Диапазон расхода См. таблицу расходов
Класс точности
от 10 до 200 мм
Присоединение к трубопроводу фланцевое
Напряжение питания   
  • не требует электрического питания
  • 24 В постоянного тока*
Давление измеряемой среды До 6.3 МПа
Температура измеряемой среды от -40 до +200°С
Выходные сигналы:
  • импульсный
  • аналоговый токовый 4-20 мА
Взрывозащита 1ExdIIС(Т2-Т6)Х*
Температура окружающей среды от -40°С до +60°С
Интервал между поверками
2 года
* - для исполнения с выходными сигналами

Documentation for the countries of the Eurasian Union
  • The Customs Union Certificate of Conformity ТR CU 012 “On the safety of equipment applied in hazardous area”. EMIS-DIO 230L

  • Type approval certificate. EMIS-DIO 230L

  • Conformity of “On the safety of equipment applied in hazardous area”.


Reduce design and installation costs;

  • Flowmeter can show accumulated volume of liquid in the absence of electrical power supply, which allows you to operate it without additional costs for wiring and installing associated equipment (switchboard equipment, circuit breakers, etc.).
  • Does not require straight run before and after the flow meter installation point, which decreases pipeline preparation costs.
  • Liquid flow meter EMIS-DIO 230L can be mounted on horizontal, vertical and inclined parts of the pipeline, which simplifies installation and decreases installation costs.

Wide application range

  • Applicable for large Dn up to 200 mm and high pressure up to 6,3 MPa, where standard meters cannot be used.
  • Wide temperature range from -40... +200 °С

Lower operation and maintenance costs

  • Wide range of viscosity allows to use the flo meter EMIS-DIO 230L for mediums with changing parameters.
  • Calibration can be executed with liquids of different viscosity, including water, which reduces calibration costs.
  • Lower cost comparing to EMIS-DIO 230 because of more simple design of the measuring assembly.
Сomplete set


EMIS-DIO 230L Mounting kit counter flanges, gaskets, bolts, nuts, washers for installation on the pipeline

Flanged disassembling joint EMIS-DIO 230L for easy and safety installation of Rotary liquid flowmeter EMIS-DIO 230L

Filters & Functional Equipment

Magnetic filter EMIS-VEKTA 1210 to improve performance and service life of flowmeter by filtering liquids from impurities of solid particles, dust, rust

  • EMIS-DIO 230L