Vortex Flow Meter

Key Features

No Moving Parts

• No moving parts for reliable operation
• Excellent repeatability and long-term stability

High Turndown Ratio

• 20:1 turndown ratio for a wide flow measurement range

Multi-Fluid Capability

• Suitable for measuring gas, liquids and steam

High Temperature & Pressure Resistance

• Designed to withstand high temperature and pressure conditions

Easy Installation & Commissioning

• Simple installation and easy commissioning

Optional Temperature & Pressure Compensation

• Optional temperature and pressure compensation
• Enables accurate mass flow measurement

Working Principle

The vortex flow meter works on the Von Kármán vortex street, where a bluff body placed in the flow path generates vortices. The frequency of vortex shedding (f) is directly proportional to the fluid velocity (V):

f = St × V / d
Where:
f = vortex frequency
St = Strouhal number (constant)
V = fluid velocity
d = width of bluff body

Industrial Applications

Vortex flow meters are widely used in industries where reliable flow measurement of steam, gas, and clean liquids is required.

1. Power Plants

• Steam flow measurement in boilers and turbines
• Feed water and condensate monitoring
• Energy efficiency and heat balance calculations

2. Oil & Gas Industry

• Measurement of natural gas and compressed air
• Steam injection systems
• Refinery process flow monitoring

3. Chemical & Petrochemical Industry

• Flow measurement of process gases and liquids
• Utility lines (steam, nitrogen, air)
• Reactor feed and output monitoring

4. Food & Beverage Industry

• Steam flow in sterilization and cooking processes
• Clean liquid measurement (water, beverages)
• Utility monitoring for energy optimization

5. Pharmaceutical Industry

• Steam used in sterilization (SIP/CIP systems)
• Process gas monitoring
• Clean and hygienic flow applications

6. Water & Wastewater Treatment

• Flow measurement of treated water and chemicals
• Aeration systems (air flow monitoring)
• Pumping and distribution systems

7. HVAC & Building Services

• Chilled water and hot water flow measurement
• Steam and air flow in heating systems
• Energy management systems (EMS)

8. Pulp & Paper Industry

• Steam flow for drying processes
• Chemical flow monitoring
• Utility management

9. Textile Industry

• Steam usage in dyeing and drying processes
• Compressed air monitoring

10. General Industrial Utilities

• Compressed air systems
• Boiler efficiency monitoring
• Energy consumption tracking

Technical Specifications

Parameters	Details
Measured Medium	Liquid, Gas, Steam
Flange	DIN PN10 / PN16 / PN25 / PN40; 20K / 30K / 40K; ANSI 150 / 300
Wafer	4.0 MPa Pressure
Thread	1.6 MPa
Tri-Clamp	1.6 MPa
Insertion	1.6 MPa
Accuracy	±1.5% (Flange / Wafer / Thread / Tri-Clamp) / ±2.5% (Insertion Type)
Flow Range	Liquid: 0.4–7.0 m/s Gas: 4.0–60.0 m/s Steam: 5.0–70.0 m/s
Specifications	1. DN15–DN300 (Flange / Wafer Type) 2. DN80–DN2000 (Insertion Type) 3. DN15–DN100 (Thread / Sanitary Type)
Body Material	SS304 (Standard) / SS316 (Optional)
Power Supply	DC12–30V or 3.6V Lithium Battery Powered; 230V AC
Signal Output	4–20 mA, Pulse
Vortex FM	2-Wire (HART), RS-485: 4-Wire
Compensation	Optionally Available

Ordering Information_SS FLOW_VFM_Line Size

Parameters	Details
Pressure	1. Up to 16 Bar 2. High Pressure available
Power Supply	1. 12–28V DC 2. 85–265V AC 3. 3.6V Lithium Battery (Live LCD Display)
Temperature	1. 150°C 2. 250°C 3. 350°C 4. Above 350°C
Compensation	1. With P & T Compensation 2. With Temperature Compensation 3. With Pressure Compensation
Connection	1. Flange 2. Clamping Flange Connection 3. Insertion Type 4. Thread 5. Clamp Connection
Explosion Proof	1. Non-Explosion Proof 2. Explosion Proof
Display Type	1. Integral 2. Remote
Output	1. 4–20 mA 2. RS485 3. 4–20 mA + HART 4. Pulse

Insights