The SI-3305 Intelligent Gas Precession Vortex Flowmeter is a new type of intelligent flow meter that integrates pressure and temperature readings. It can simultaneously display temperature, pressure, operating flow rate, standard flow rate, and total flow. It is an ideal choice for gas metering in the petroleum, chemical, power, metallurgical, and urban gas distribution industries.
| Diameter | DN15～DN300 |
| Accuracy | 1.5% / 1.0% |
| Temp. range | -40 ~ +160°C |
| Pressure | 1.6MPa, 2.5MPa, 4.0MPa, 6.3MPa, 10MPa, 16MPa |
| Flow rate | 9 – 10000m3/h (air), 1 – 2000m3/h (liquid), 0.017 – 153.4/h (steam) |
| Out Put | Digital Pulse output, 4-20mA analog out put, RS485 interface ,HART communictaion (option) |
| Diameter | 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 |
| Media | Natural Gas, Oxygen , Compressed Air etc. |
| Accuracy | 1.5% / 1.0% |
| Nominal Pressure | 1.6MPa, 2.5MPa, 4.0MPa, 6.3MPa, 10MPa, 16MPa, 40MPa |
| Power Supply | 24VDC+lithium battery |
| Power Consumption | 24VDC: <2W |
| 3.6V lithium battery (ER26500): The average power consumption is 1mW and can be used for | |
| more than two years | |
| Data Storage | Daily record, month record, time interval, etc |
| Intelligent Calculation | Temperature and Pressure Compensation |
| Operating Temp. | -20~+80℃ |
| Ambient Temp. | -30~+65℃ |
| Body Material | Aluminium alloy, SS304 |
| Protection Grade | IP65 |
| Ex-proof Grade | ExdIIBT6 |
Flow Range
| Diameter | Flow Range(m3/h) |
| 15mm | 1~7 |
| 20mm | 1~18 |
| 25mm | 2~30 |
| 32mm | 4.5~60 |
| 40mm | 6~80 |
| 50mm | 10~150 |
| 65mm | 18~220 |
| 80mm | 28~400 |
| 100mm | 50~800 |
| 125mm | 80~1000 |
| 150mm | 150~2250 |
| 200mm | 360~3600 |
In addition to regular products, we support customization
| Model | Description | ||||||
| SI-3305- | □ | □ | □ | □ | □ | □ | Intelligent precession vortex flowmeter |
| Flow range | 1 | A：Little range | |||||
| 2 | B：Large range | ||||||
| Power supply mode | 1 | 24VDC | |||||
| 2 | Lithium battery | ||||||
| 3 | 24VDC and lithium battery | ||||||
| Meter nominal diameter | 01 | 20mm | |||||
| 02 | 25mm | ||||||
| 03 | 32mm | ||||||
| 05 | 50mm | ||||||
| 06 | 65mm | ||||||
| 08 | 80mm | ||||||
| 10 | 100mm | ||||||
| 12 | 125mm | ||||||
| 15 | 150mm | ||||||
| 20 | 200mm | ||||||
| Accuracy grade | 0 | 1.0 grade | |||||
| 1 | 1.5 grade | ||||||
| A | 4-20mA two-wire output | ||||||
| B | 4-20mA three-wire output; pulse output; RS485 communication (MODBUS protocol); alarm output | ||||||
| C | Pulse output; RS485 communication (MODBUS protocol); alarm output | ||||||
| Explosion-proof grade | N | Standard type, not explosion-proof | |||||
| E | Flameproof type, ExdIIBT6 | ||||||
The SI-3305 Intelligent Gas Precession Vortex Flowmeter has a wide range of applications, including but not limited to the following:
Petroleum Industry: In all stages of oil extraction, refining, storage, and transportation, the SI-3305 accurately measures the flow rate of various gases, providing reliable data for production and management.
Chemical Industry: In chemical production processes, precise control of the flow rate of various gases and liquids is required. The high accuracy and stability of the SI-3305 make it an ideal choice.
Power Industry: In power production and supply, accurate measurement of gas flow rate is crucial for ensuring normal equipment operation and efficient energy utilization. The SI-3305 meets this requirement.
Metallurgical Industry: Metallurgical processes involve the use of large quantities of gases. The SI-3305 allows for real-time monitoring and measurement of these gas flow rates.
Coal Industry: In coal processing and utilization, the SI-3305 can be used to measure the flow rate of gases such as coal gas.
Trade Measurement: In applications requiring high-precision, high-flow-rate trade measurement, the vortex flow meter provides reliable measurement results, avoiding measurement disputes.
Harsh Environments: Due to its corrosion resistance and stable reliability, the vortex flow meter can operate normally in harsh environments such as high temperature, high pressure, and vibration.
The Intelligent Gas Precession Vortex Flowmeter employs the vortex flow metering principle. Its working principle can be summarized as follows:
A contraction tube (or vortex generator) is placed in the fluid pipeline. As the fluid flows through the contraction tube, the flow velocity gradually increases until a stable vortex forms downstream. This vortex periodically detaches and propagates forward along the pipeline.
When the vortex passes the sensor, the sensor detects its presence and outputs a signal proportional to the fluid flow rate. By detecting the vortex shedding frequency, the flow meter can calculate the fluid velocity, thereby determining the flow rate.
Sino-Inst’s vortex flowmeters play a vital role in various industries as a powerful tool for fluid measurement. Contact us to confirm your customized solution!
Zhang Wei, possesses 20 years of experience as an automation instrumentation engineer, specializing in the research, design, installation, commissioning, and maintenance of automation instruments.
Face to various instrument communication protocols (such as Modbus, Profibus, etc.), with solid hardware circuit design and software programming skills (proficient in C language and PLC programming). Has extensive project experience; projects he has led and participated in have all achieved outstanding results, improving product accuracy, reducing costs, and increasing production efficiency.
Possesses excellent communication and coordination skills and a strong team spirit, enabling him to quickly respond to customer needs and provide high-quality automation instrumentation solutions.
