Oil filled LWQ gas turbine flowmeter

Description :

　　Oil filled LWQ gas turbine flowmeter

　　The excellent low-pressure and high-pressure metering performance, multiple signal output modes, and low sensitivity to fluid disturbances of this product make it a special commercial trade metering instrument that can accurately measure gas accumulation.

　　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)

　　Oil filled LWQ gas turbine flowmeter

　　2、 Product features:

　　Convenient human-machine interface implementation with screen display, data transmission in standard 485 format.

　　Low pressure loss and impeller with anti-corrosion function;

　　The instrument coefficient can be set online by buttons and displayed on the LCD screen, which is intuitive, clear, and highly reliable

　　Adopting advanced ultra-low power single-chip microcomputer technology, the whole machine has strong functions, low power consumption, and superior performance.

　　Intelligent flow display with non-linear accuracy compensation function. The accuracy of the correction formula is better than ± 0.002%

　　Using 1Cr18Ni9Ti all stainless steel structure (2Cr13 for turbine), it has good anti-corrosion performance.

　　On site display LCD screen has clear and intuitive display, low power consumption, and can run continuously for more than 5 years with 3V lithium battery power supply

　　Internal cleaning is simple.

　　Has strong resistance to magnetic interference and vibration, reliable performance, and long lifespan

　　3、 Selection and installation:

　　1) In situations where the flow range is required to be smaller than according to Table 1 and there are strict requirements for the initial flow rate.

　　2) There is no fluid medium with short interval time and large flow fluctuation amplitude

　　3) Suitable for natural gas, city gas, compressed air, nitrogen, etc

　　When installing a gas turbine flow sensor, users should install a filter in front of the meter.

　　Note: Any damage to the impeller bearing caused by failure to install a filter is not covered by the warranty.

　　Before using the instrument, the pipeline should be cleaned in advance.

　　Note: Any damage to the impeller bearing caused by failure to clean the pipeline or incomplete pipeline cleaning is not covered by the warranty.

　　3. When installing a flowmeter, do not weld the pipeline after installation to avoid burning out the flowmeter core. If the flowmeter burns out the inner core due to welding pipeline, it is not covered by the warranty.

　　When using the instrument, the valve should be slowly opened until the pipeline is filled with gas, and then the large valve should be opened to prevent damage to the impeller.

　　If it is used for temperature and pressure compensation, the pressure sensor valve on the instrument should be opened first.

　　When installing sensors, the straight pipe section in front of the instrument should not be less than 20 times the DN, and the straight pipe section behind the instrument should not be less than 10 times the DN.

AfterSalesService :

• LWQ gas turbine flowmeter