Features of B-D Ultrasonic Gas Flow Meter

• Overall explosion-proof design;
• No moving parts, no pressure loss, reducing use and maintenance costs;
• The starting flow rate is small. Suitable for measuring low-speed flow;
• Large turndown ratio, turndown ratio 1:125, measuring flow rate from 0.2-25m/s;
• The metering is not affected by the composition. Suitable for measuring multi-component gases or gases with changes in composition;
• The influence of dust and moisture is small. Dirty gases such as coal gas and flue gas can be measured;
• Proprietary algorithm, which can adapt to the measurement occasions with rapid changes in components, rapid changes in temperature, pressure, and humidity;
• Can measure pulsating flow and bidirectional flow;

1. Unique operating software design combines waveform debugging and parameter setting. Convenient on-site operation and maintenance;
2. Unique maintenance alarm can realize early warning of maintenance time. Provide product stability.
3. The all-metal ultrasonic transducer has strong anti-interference ability, dirt resistance and long service life.

B-D Ultrasonic Gas Flow Meter Applications

• It is suitable for the measurement of alkanes such as natural gas, coal bed methane, mine gas, liquefied petroleum gas, methane, ethane, propane, butane, etc.;
• It is suitable for the measurement of gas such as biogas, biological fermentation gas (water-containing impurities), and biomass fuel gas;
• Suitable for the measurement of air, oxygen, nitrogen, argon, helium, nitrogen, and other non-corrosive gases;
• It is suitable for the measurement of flare gas, tail gas, landfill gas, and water treatment aeration;
• It is suitable for the measurement of helium, ammonia, acetylene, and other gases;

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B-D Ultrasonic Gas Flow Meter Technical specifications

Technical specifications
Parameter category	Specifications
structure type	Direct type
Applicable caliber	DN50-DN200 (other calibers can be customized)
Number of channels	Mono
Flow rate range	0-25m/s
level of accuracy	1.5%, 1.0%
Resolution	0.001m/s
Flow cutoff point	Qt=0.1 Qmax
Repeatability	Class 1.0: Qt-Qmax 0.2%; Qmin-Qt0.4%
Work pressure	Class 1.5: Qt- Qmax 0.3%; Qmin-Qt 0.6%
Measuring direction	0-1.6MPa (Higher pressure is optional. The default gauge pressure sensor, if you need an absolute pressure sensor, you need to customize)
Measuring medium	Single way measurement (two-way need to be customized)
Measurement requirements
Medium temperature	-20℃~60℃ (Limit temperature -40℃~85℃）
Ambient temperature	-25℃~ +55℃
Signal, communication and other functions
output signal	4-20mA, frequency (pulse)
Communication Interface	RS-485
Operating Voltage	24VDC
Power consumption	≤3W
data storage	18 months
Front and rear straight pipe	10D before, 5D after
Use operation	Support waveform real-time display and debugging. Set operating parameters through the instrument menu
Alarm function	When the pressure, temperature, ultrasonic signal, instrument hardware, etc. are abnormal, an alarm is generated, and the alarm information can be obtained through the upper computer software to facilitate maintenance.
Explosion protection
Explosion-proof grade	Ex d mb IIC T5 Gb,
Protection level	IP65

B-D Ultrasonic Gas Flow Meter Flow Range

Nominal diameter		Turndown ratio	Q max	Q min
Metric system（mm）	British system (inch)		（m³/h）	（m³/h）
50	2”	1:80	160	2
80	3”	1:80	400	5
100	4”	1:80	640	8
150	6”	1:80	1300	18
200	8”	1:80	2200	30

Nominal diameter		Turndown ratio	Q max	Q min
Metric system（mm）	British system (inch)		（m³/h）	（m³/h）
50	2”	1:150	212	1.4
80	3”	1:125	450	3.6
100	4”	1:125	640	5.0
150	6”	1:125	1600	13
200	8”	1:100	2260	23

B-D Ultrasonic Gas Flow Meter Straight pipe requirements

a) When there is no rectifier. It is recommended that the length of the front straight pipe is greater than 10D. The length of the rear straight pipe is greater than 5D.

b) With a rectifier. It is recommended that the length of the front straight pipe section is greater than 5D. The length of the rear straight pipe section is greater than 3D.

c) When there are noise sources such as pressure regulating valves on site. A noise reduction pipe section should be installed between the flowmeter and the noise source.

Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.

Sino-Inst is the risk-free choice for your gas flow measurement applications.

Sino-Inst’s Ultrasonic Gas Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.