SAV-LUGB Vortex flowmeter without temperature & pressure compensation
SAV-LUGB Vortex flowmeter works on the principle of generated vortex and the relation between vortex and flows by the theory of Karman and Strouhal, which specialize in the measurement of steam, gas and liquid of lower viscosity.
Features
Pipe diameter: DN15-DN300
Accuracy: 1.0% 1.5%
Range Ratio: 1:8
Ingress protection: IP65
Introducing our state-of-the-art SUP-LUGB Vortex flow meters, offering precision in measuring liquids, gases, and steam. Ideal for various industries, including oil and gas, chemical, and water treatment. Choose from our range for your specific needs. Reliable, accurate, and easy to install.
SPECIFICATIONS
| Product | Vortex flowmeter |
|---|---|
| Model | SAV-LUGB |
| Diameter nominal | DN15~DN300 |
| Installation | Wafer connection: DN15-DN300(priority PN2.5MPa); Flange connection: DN15-DN50(priority PN2.5MPa);DN65-DN200(priority PN1.6MPa);DN250-DN300(priority PN1.0MPa） |
| Accuracy | Gas without compensation: DN15-DN25--1.5%, DN32-DN200--1.0%, DN250-DN300--1.5% |
| Range Ratio | Gas density:1.2kg/m3, Range ratio: 8:1 |
| Medium Temperature | -20°C ~ +150°C、-20°C ~ +260°C、-20°C ~ +300°C |
| Output signal | 4-20mA |
| Frequency | RS485 communication (Modbus RTU) |
| Power supply | 24VDC±5% Li battery(3.6VDC) |
| Ingress protection | IP65 |
| Body Materials | Stainless shell |
| Display | 128*64 dot matrix LCD |
- Measuring principle
A fluid flowing with a certain velocity and passing a fixed obstruction generates vortices. The generation of vortices is known as Karman’s Vortices.The frequency of vortex shedding is a direct linear function of fluid velocity and frequency depends upon the shape and face width of the bluff body.
Since the width of the obstruction and inner diameter of the pipe will be more or less constant, the frequency is given by the expression:
f=StV/d
In the formula:
f – Karman vortex frequency generated at one side of bluff body (Hz)
St – strouhal number (non-dimensional number)
V – average speed of fluid (m/s)
d – width of bluff body (m)