Ultrasonic Flow Meter
The gas ultrasonic flowmeter operates on the principle of the ultrasonic time-difference method and features a built-in, independent digital temperature transmitter and pressure transmitter. It also integrates a wireless remote transmission module, making it a versatile velocity-type gas metering device that combines flow measurement, volumetric correction, and data remote transmission in one compact unit. This instrument boasts high measurement accuracy, excellent equipment reliability, minimal pressure loss, and an exceptionally wide measurement range—qualities that perfectly meet the stringent precision requirements of the urban natural gas metering industry. As a result, it is widely suited for gas flow measurement applications in trade handover scenarios across industries such as city gas supply, chemical processing, power generation, metallurgy, and more.
Core Features
• Multi-channel oblique reflection design effectively addresses vortices and asymmetric flows;
• High measurement accuracy, up to 1%;
• Wide measurement range with an effective span ratio of up to 1:160;
• Low cut-off flow rate— the cut-off flow Qt can be as low as 10% of Qmin;
• Low starting flow rate, as low as 0.2 m even for DN50 3 /h;
• Low pressure loss—pressure drop as low as 0.40 kPa for DN50;
• Integrated temperature and pressure sensing, with unified temperature-pressure compensation;
• Temperature and pressure transmitters are built-in to prevent accidental damage;
• Headrest with 350-degree free rotation;
• Optional lithium battery pack power supply or external power supply;
• No moving parts—virtually maintenance-free;
• Integrated wireless remote data transmission, featuring self-diagnosis and online monitoring capabilities;
• Built-in rectifier, easy to install.
Technical specifications
|
Performance Project |
Performance Metrics and Application Scope |
|
Product Model |
DN25-200 |
|
Measurement Principle |
Ultrasonic Time-Difference Method |
|
Channel count |
Two-channel (DN25/32/40/50/80/100), three-channel (DN150/200) |
|
Measurement accuracy |
±1%, Qt = 10Qmin |
|
Medium temperature |
-25°C to +60°C |
|
Ambient temperature |
-30°C to +60°C |
|
Withstand Voltage Rating |
PN16 |
|
Explosion-proof rating |
Ex d IIB T6 |
|
Protection Level |
IP65 |
|
Measured value |
Operating flow rate, operating cumulative volume, standard flow rate, standard cumulative volume, temperature, pressure |
|
Measuring medium |
Non-corrosive gases such as natural gas, air, and nitrogen |
|
Output signal |
Pulse, 4–20mA (two-wire system, optional) |
|
Communication interface |
RS485, Bluetooth, and wireless communication (GPRS, NB, or 4G) |
|
Display method |
Liquid Crystal Display |
|
Installation method |
Flange Connection (GB/T 9113 Standard) |
|
Housing material |
Cast aluminum |
|
Power Supply Method |
External power supply: +10V to +24V DC, or internal power supply: +7.2V DC lithium battery (for metering and communication purposes) |
|
Model |
Nominal Diameter |
Flow Range |
Breakpoint Flow |
Initiation flow rate |
Measurement range ratio |
Withstand Voltage Rating |
Measurement accuracy |
|
DN25 |
25 |
0.5 to 40 |
5.0 |
0.1 |
1:80 |
≤1.6 |
±1% |
|
DN32 |
32 |
0.5 to 65 |
5.0 |
0.1 |
1:130 |
||
|
DN40 |
40 |
1.0 to 100 |
10 |
0.2 |
1:100 |
||
|
DN50 |
50 |
1.0 to 160 |
10 |
0.2 |
1:160 |
||
|
DN80 |
80 |
2.5 to 400 |
25 |
0.5 |
1:160 |
||
|
DN100 |
100 |
4.0 to 650 |
40 |
0.8 |
1:160 |
||
|
DN150 |
150 |
16–1600 |
160 |
3.2 |
1:100 |
||
|
DN200 |
200 |
25–2500 |
250 |
5.0 |
1:100 |
Welcome to follow our official WeChat account or call our customer service hotline for inquiries!
No. 68-D2, Guizhuxiang Street, Sujiatun District, Shenyang City, Liaoning Province
shichangbu@hangyuxing.cn
