DN25 intelligent gas turbine flowmeter

Description :

　　DN25 intelligent gas turbine flowmeter

　　This product has the characteristics of low pressure loss, high accuracy, low starting flow rate, good anti vibration and anti pulsating flow performance, and wide range ratio. This series of flow meters considers the compressibility of gases, and the volume is closely related to the temperature and pressure of the medium. Therefore, temperature and pressure sensors are added to track the temperature and pressure changes of the medium, directly converting the operating flow rate into the standard flow rate, ensuring the accuracy of measurement.

　　1、 Technical parameters:

　　1. Nominal diameter: 25mm to 300mm;

　　2. Accuracy level: ± 1% R, ± 1.5% R, ± 0.2% FS (4-20mA);

　　3. Tested media: natural gas, coal to gas, air, etc;

　　4. Environmental temperature: -20 ℃ to+50 ℃;

　　5. Temperature of the tested medium: -20 ℃ to+80 ℃;

　　6. Nominal pressure: 1.6MPa, 2.5MPa, 4.0MPa, 20MPa;

　　7. Explosion proof signs: Exib Ⅱ BT4, Exd Ⅱ BT6;

　　8. Output signal: voltage pulse, 4-20mA;

　　9. Communication interface: Select RS-485 communication interface.

　　10. Power supply:

　　Sensor:+5V~+24VDC (external)

　　Transmitter:+24VDC (external),

　　Flow meter: 3.0V lithium battery (built-in)

　　DN25 intelligent gas turbine flowmeter

　　2、 Characteristics:

　　1. High quality alloy turbine with higher flow stability and corrosion resistance;

　　2. Imported high-quality specialized bearings with long service life;

　　3. The isolation between the measuring room and the ventilation room ensures the safety of the instruments;

　　4. It can detect the temperature, pressure, and flow rate of the tested gas, automatically track and compensate for the flow rate, and display the accumulated gas volume under standard conditions (Pb=101.325KPa, Tb=293.15K); Real time query of temperature and pressure values;

　　5. Wide flow range (Qmax/Qmin ≥ 20:1), good repeatability, high accuracy (up to 1.0 level), low pressure loss, low starting flow rate, up to 0.6m3/h;

　　6. Intelligent instrument coefficient multi-point nonlinear correction;

　　7. Built in pressure and temperature sensors, high safety performance, compact structure, and beautiful appearance;

　　8. The instrument has explosion-proof and protective functions, with explosion-proof markings of Exd Ⅱ BT6 and Exia Ⅱ CT6, and a protection level of IP65;

　　9. The system operates with low power consumption, and a 3.2V10AH lithium battery can be used continuously for more than 3 years.

　　DN25 intelligent gas turbine flowmeter

　　3、 Installation:

　　1. Before installing the flowmeter, the pipeline must be blown clean to prevent residual iron filings from affecting the normal operation of the flowmeter.

　　2. Before installation, if the turbine can rotate flexibly without irregular noise when blown by a small airflow, and the counting rotation is normal without any interruption or jamming, then the flowmeter can be installed and used.

　　3. When installing the flowmeter, a sealing gasket should be added between the flange and the pipeline flange.

　　4. A filter should be installed before the gas turbine flowmeter, and an oil filter should be installed in places with dirty gas. It is strictly prohibited to directly connect the filter and flowmeter.

　　5. Stop valves should be added before and after installation.

　　6. There should be no protrusions connected to the flange joint inside the pipeline.

　　7. When installing a gas turbine flowmeter, it is strictly prohibited to directly weld at its inlet and outlet flanges to avoid burning out the internal parts of the flowmeter.

　　8. The flowmeter should be installed in a location that is easy to maintain, free from strong electromagnetic field interference, mechanical vibration, and thermal radiation effects.

　　9. Not suitable for installation in situations where flow is frequently interrupted and there is strong pulsating flow or pressure pulsation.

AfterSalesService :

• DN25 gas turbine flowmeter