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Gas flowmeters Turbo Flow TFG-H

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The Turbo Flow TFG-Н gas flowmeter is used for gas flow rate measurement in the dynamic range 1:1,500.  

Gas metering in the utility and domestic sphere apartment buildings, private houses and other public utilities requiring flow rate measurement in an extended dynamic range

Measurement method:

The hot-wire (thermal) mass method of measurement is based on the dependence of the degree of cooling of a heated sensitive element, placed in the stream, due to flow rate. The heated sensitive element in gas flowmeters is a platinum resistance thermometer.

The instruments maintains in real time the constant difference of temperatures between the heated sensitive element of the hot-wire flowmeter and the thermal converter which measures gas temperature. The power needed for maintaining the constant temperature difference is proportional to the mass speed of the gas flow which passed through the metering section. The current value of gas flow rate is calculated according to the value of dissipated heat power of the hot-wire flowmeter, composition and thermophysical properties of gas, pressure parameters, as well as dimensions of the sensitive element of the primary transducer and pipeline cross-sectional area

Flowmeter purpose

The Turbo Flow TFG-Н gas flowmeter is used for gas flow rate measurement in the dynamic range 1:1,500.

Field of application

Gas metering in the utility and domestic sphere:

  • Apartment buildings;
  • Private houses;
  • Other public utilities requiring flow rate measurement in an extended dynamic range.

Specific features of flowmeter

  • Can be used for small pipeline diameters;

  • A remote temperature sensor;

  • Configuration with explosion-proof housing

Merits:

  • High accuracy: relative measurement error not more than 1.5% throughout the range of operating flow rate from 2.5% to 1.5%;

  • Wide dynamic range of measured flow rates from 0.05 to 1,200 m3/hour (1:1,500);

  • The probe version creates no resistance to the flow;

  • The instrument can be installed without additional shutoff valves;

  • In case of failure it does not block gas supply to the consumer;

  • Overpressure of measured medium up to 32 MPa;

  • Universal protocol of exchange with automatic process control systems (MODBUS RTU).;

Configuration options:

By configuration of primary transducer:

  • With indicator and without indicator;

  • With keyboard (if indicator is available) and without keyboard;

  • With remote or integrated sensitive element for temperature measurement.

By configuration of flow measurement cabinet:

  • Full set (includes a gas flowmeter and remote cabinet);

  • Power supply unit only (gas flowmeter with connected power supply unit).

You can order the gas flowmeters turbo flow tfg-h from  dealers  at a good price.
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Technical specifications:

Characteristic Value

Measurement range of volumetric gas flow rate under standard conditions, m3/h

from 0.05 to 1,200
Pipeline diameter, mm from 25 to 100

Limit of permissible relative error during measurement of volumetric gas flow rate, reduced to standard conditions, %

  • using the manufacturer's measuring section ± 1.0 in the range 0.015 Qmax < Q < Qmax
  • without using the manufacturer's measuring section ± 1.5 in the range 0.015 Qmax < Q < Qmax

  • ± 2.0 in the range Qmin < Q < 0.015 Qmax
  • ± 2.5 in the range Qmin < Q < 0.015 Qmax
Gas temperature measurement range, °С

From minus 60оС to plus 300оС

Limits of permissible absolute error during temperature measurement, °С

±(0,3+0,005|t|),

where  t - measured temperature, °C

Limits of absolute error during time measurement, s

± 1 for 24 h
Flow speed range, m/s От 0,03 до 350

Upper limit of overpressure measurements, kPa

up to 600
up to 32

Working range of overpressure measurements, % of ULM

from 33 to 100

Upper limit of absolute pressure measurements, (ULM), MPa

up to 32

Working range of absolute pressure measurements, % of ULM

from 33 to 100

Dynamic range (Qmin/Qmax)

1:1500

Sensitivity threshold

0,3 Qmin

Limits of permissible relative error during pressure measurement, %

±0,5

Performance specification:

Characteristic

Value

PT* operating conditions*:
- ambient air temperature, °C

From minus 60 to plus 70
Kind of PT* explosion protection Ex ib Gb [ia Ga] IIC T4 Gb
or 1 Ex dib Gb [ia Ga] IIC T4 Gb
Kind of FMC** explosion protection [Ex ib Gb] IIC
Protection degree of PT* as per GOST 14254-96 IP65
Protection degree of FMC* as per GOST 14254-96 IP54
Average mean time between failures, hours, at least 60 000

* PT - primary transducer;

** FMC - flow measurement cabinet.

Download software

NameInstrumentsFiles nameSize,byte
DOTNET 4.0.3

Driver

DotNetPack_403ru 124 147 694
ТПО TFG-S GFG-F

TFG, GFG all modifications

TFG-S GFG-F 797 616

Compliance Certification (RUS)

Certificate of type approval (RUS)

Certificate of type approval - Kazakhstan (RUS)

Certificate of compliance with Technical Regulations of the Customs Union (RUS)

Software Compliance Certification (RUS)

Certificate GAZSERT (RUS)

Certificate of type approval - Kyrgyzstan (RUS)

Certificate of type approval - Turkmenistan (RUS)

Certificate of type approval - Uzbekistan (RUS)

Certificate of type approval - Armenia (RUS)