Vortex Flow Meter-Precision Measurement for Gases, Steam, and Liquids
2026-10-09
You're measuring propane. You're monitoring argon. You're tracking hydrogen. You're billing LPG. You're controlling biogas. You're dosing CO2, nitrogen, or oxygen.
One wrong reading – and your process control fails, your energy accounting is off, or your safety margins are compromised.
When You Need One Meter for Gases, Steam, and Liquids
Different fluids demand different measurement technologies. But switching meters for every application is expensive, complex, and inefficient.
The Vortex Flow Meter handles them all – gases, steam, and liquids – with one proven principle.
It measures the frequency of vortices shed behind a bluff body. That frequency is directly proportional to flow velocity. No moving parts. No drift from wear. No contamination from dirty fluids.
Built for the Fluids That Matter
| Your Challenge | Vortex Answer |
|---|---|
| Multiple gas types | Air, oxygen, nitrogen, natural gas, LPG, biogas, CO2, argon, hydrogen – one meter for all |
| Steam measurement | Saturated steam, superheated steam – wide temperature range up to 350°C |
| Liquid measurement | Water, high-temperature water, oil, food liquids, chemical liquids |
| Wide flow range | Liquids: 0.27~9 m/s; Gases: 3~80 m/s; Steam: 3~90 m/s |
| High pressure | Up to 4 MPa – handles pressurized gas and steam lines |
| Wide temperature | -40°C ~ +350°C – from cold gases to superheated steam |
| No moving parts | Nothing to wear, nothing to clog, nothing to fail |
| Low pressure drop | Minimal obstruction – saves pump and compressor energy |
| Remote monitoring | RS485, 4~20mA, pulse output – connects to any control system |
| Hazardous areas | Explosion-proof certified – safe in explosive atmospheres |
| Battery-powered sites | 3.6V battery option – no wiring needed |
Why Vortex – Not Turbine or Thermal Mass
| Meter Type | Limitation | Vortex Advantage |
|---|---|---|
| Turbine | Wears, clogs, limited to clean gases | No moving parts, handles dirty fluids |
| Thermal Mass | Limited to gases, sensitive to composition | Handles gases, steam, and liquids |
| Orifice Plate | High pressure drop, limited range | Low pressure drop, wide turndown |
| Ultrasonic | Expensive, sensitive to particulates | Lower cost, handles particles |
| Coriolis | High cost, size limitations | Lower cost, larger sizes available |
Key Specifications
| Parameter | Value |
|---|---|
| Product Name | Vortex Flow Meter |
| Applicable Medium | Gases (Air, O2, N2, Natural Gas, LPG, Biogas, CO2, Argon, H2), Steam (Saturated, Superheated), Liquids (Water, Oil, Food, Chemical) |
| Nominal Diameter | DN15 ~ DN300 (300-1000 insert type) |
| Range Ratio | 1:6 ~ 1:30 |
| Medium Temperature | -40°C ~ +250°C; -40°C ~ +350°C |
| Nominal Pressure | ≤1.6 MPa / ≤2.5 MPa / ≤4 MPa |
| Accuracy – Liquid | 1.0% |
| Accuracy – Gas and Steam | 1.5% |
| Flow Rate – Liquids | 0.27 ~ 9 m/s |
| Flow Rate – Gases | 3 ~ 80 m/s |
| Flow Rate – Steam | 3 ~ 90 m/s |
| Output Signal | Square wave pulse; 4~20mA; RS485 communication |
| Power Supply | AC86~230V / DC24V / 3.6V Battery / +12V DC |
| Protection Grade | IP65 |
| Explosion Protection | ExII 2G Ex db ib IIC T6...T2 Gb |
| Material | SS316L (wetted parts) |
| Warranty | 1 year |
| Customization | OEM, ODM, OBM |
What Sets This Vortex Flow Meter Apart
| Feature | What It Means for You |
|---|---|
| One meter for gas, steam, and liquid | Simplifies inventory, reduces spare parts, one platform to learn |
| No moving parts | No wear, no maintenance from mechanical failure, long service life |
| Wide temperature range | -40°C to +350°C – handles cryogenic gases to superheated steam |
| Wide pressure range | Up to 4 MPa – handles pressurized gas and steam lines |
| Wide turndown | 1:6 to 1:30 – accurate from low flow to full capacity |
| Low pressure drop | Saves compressor and pump energy – reduces operating cost |
| Multiple outputs | Pulse, 4~20mA, RS485 – integrates with any control system |
| Battery option | 3.6V battery – remote sites without power wiring |
| Explosion-proof | ExII 2G Ex db ib IIC T6...T2 Gb – safe in hazardous areas |
| IP65 protection | Dust-tight and water-resistant – reliable in harsh environments |
| SS316L construction | Compatible with corrosive gases and liquids |
| Insertion type available | DN300-1000 – cost-effective for large pipes |
Typical Applications
| Industry | Application | Why Vortex |
|---|---|---|
| Oil and Gas | Natural gas, LPG, propane, argon measurement | No moving parts, explosion-proof |
| Chemical | Hydrogen, CO2, nitrogen, oxygen, chemical gases | Wide gas compatibility, SS316L |
| Energy | Steam measurement, biogas, energy accounting | Handles steam and gases, wide temperature |
| Food and Beverage | Steam, water, food liquids | Hygienic, accurate, reliable |
| Pharmaceutical | Clean steam, process gases, water | Hygienic, accurate, traceable |
| HVAC | Chilled water, hot water, steam | Wide turndown, low pressure drop |
| Environmental | Biogas, emissions monitoring | Battery option, remote sites |
| Metallurgy | Oxygen, nitrogen, argon, hydrogen | Explosion-proof, wide temperature |
One Question
Would you rather stock five different meters – or one that handles them all?
Different fluids. Different temperatures. Different pressures. Different flow rates.
The Vortex Flow Meter adapts to all of them.
One meter. One platform. One reliable measurement.
Ready to specify the Vortex Flow Meter for your application?
Contact us with your fluid type, flow range, pressure, temperature, pipe size, and communication requirements. We'll recommend the right configuration and provide a quote within 24 hours.
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Shanghai Cixi Instrument CO.,LTD was founded in 2008 and is located in Shanghai Songjiang industrial park. We are the professional flow meter manufacture who integrate R&D, production and sales as one manufacturers.
Contact Us
Contact person: Kenny Shao
Contact phone number: +86 18930647859
Email: sales3@gnflowmeter.com
WhatsApp: 86 18930647859
Company address: Room 402 Shuangzi Building B, Caohejing Hi Tech Park, No. 650 Xin Zhu Road, Songjiang District, Shanghai, China Zip code: 201601
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