Flanged Vortex Flowmeter
Reliable volumetric measurement for steam, gas, and liquids with zero moving parts
The Flanged Vortex Flowmeter is engineered for industrial environments that demand unwavering stability. By utilizing the Karman Vortex principle and advanced digital signal processing (DSP) technology，without internal moving parts, this meter eliminates mechanical wear and tear. It provides a highly durable and cost-effective solution for measuring high-velocity steam and gases, ensuring long-term accuracy in the most rigorous pipeline conditions.
- Pipe Size: DN25 – DN300 (1" – 12")
- Accuracy: ±1% to ±1.5%
- Rangeability: 1:10 to 1:30 handles variable process conditions
- No maintenance from bearing wear or mechanical failure
- NO temperature and pressure compensation (volumetric measurement only)
Request QuotationTechnical Consultation
High-reliability vortex measurement solutions designed for maximum stability and lower total cost of ownership.
Parameter | Specification |
|---|---|
Measurement Principle | Vortex shedding (Kármán vortex street) |
Application | Saturated steam, superheated steam, gases, liquids |
Pipe Size Range | DN25 – DN300 (1" – 12") | DN300-DN1000 (insertion type available) |
Accuracy | ±1.0% of reading (standard) | ±1.5% of reading (economy) |
Repeatability | ±0.2% of reading |
Rangeability | 1:10 (standard) | 1:20 to 1:30 (extended range models) |
Velocity Range | Liquids: 0.5-7 m/s | Gases: 5-50 m/s | Steam: 8-80 m/s |
Reynolds Number | Re ≥ 20,000 (minimum for accurate measurement) |
Operating Pressure | DN25-DN200: up to 4.0 MPa | DN250-DN300: up to 1.6 MPa |
Sensor Type | Piezoelectric (high-temp steam) or Capacitive (wider applications) |
Pressure Drop | Coefficient Cd ≤ 2.4 per JB/T9249 |
Power Supply | 12-24V DC (standard) | 85-265V AC (optional) | 3.6V Battery (low-power mode) |
Output Signal | Pulse (square wave: high ≥5V, low ≤1V), 4-20mA (isolated), RS485 Modbus |
Explosion Protection | Intrinsically safe: Ex ia IIC T2-T5 | Explosion-proof: Ex d IIC T2-T5 (optional) |
Protection Rating | IP65 (standard) | IP68 (submersible optional for sensor) |
Display | LCD: volumetric flow, totalized volume, percentage, diagnostics |
Temperature Compensation | NOT included (this is basic vortex meter, not multivariable) |
Quality Certifications | CE |
Why Choose Vortex Over Other Flow Technologies
vs. Turbine Flowmeters:
- Zero moving parts—no bearing maintenance
- Works in wet steam (turbines fail rapidly)
- No lubrication required
- Lower long-term maintenance costs
- Slightly lower accuracy (±1% vs. ±0.5%)
- Higher initial cost for small sizes
vs. Electromagnetic Flowmeters:
- Measures steam and gases (EMF liquids only)
- No minimum conductivity requirement
- Lower equipment cost
- Higher pressure drop
- Requires straight pipe (EMF less sensitive)
vs. Ultrasonic Flowmeters:
- Lower equipment cost
- Simpler diagnostics
- Proven technology (40+ years field experience)
- Has pressure drop (ultrasonic has zero)
- Requires straight pipe (ultrasonic less sensitive)
vs. Orifice Plate Meters:
- No moving parts (orifice has none, but requires impulse lines prone to clogging)
- 60-75% lower pressure drop
- 3-5x better rangeability (1:10-1:30 vs. 1:3-1:4)
- No impulse line freezing or plugging issues
- Requires minimum Reynolds number (Re ≥ 20,000)
Best Applications for Vortex Flowmeter:
- Steam metering (any type: saturated, superheated, wet)
- Compressed air with consistent flow patterns
- Process gases and liquids in clean service
- Applications requiring low maintenance
- Budget-conscious projects needing reliable measurement
Versatile Flow Measurement Across Process Industries
Proven vortex technology for steam energy monitoring, compressed air management, and process control
Steam Generation & Distribution
- Boiler steam output metering
- Saturated steam distribution mains
- Superheated steam process feed
- Steam condensate return (liquid)
- Heat exchanger steam consumption
- District heating steam supply
Compressed Air Systems
- Central compressor output monitoring
- Department/zone consumption allocation
- Compressed air leak detection programs
- Dryer and filter performance verification
- Energy efficiency baseline measurement
- Cost center billing and allocation
Chemical & Petrochemical
- Process chemical feed measurement
- Cooling water circuit monitoring
- Reactor cooling fluid control
- Solvent and reagent delivery
- Waste stream flow monitoring
- Heat transfer fluid circulation
Power Generation & Thermal Systems
- Boiler feed water measurement
- Condenser cooling water
- Auxiliary steam metering
- CHP (Combined Heat & Power) plants
- Thermal power plant process measurement
- Waste heat recovery monitoring
Precision Gas Flow Measurement Starts Here
Optimize your sanitary gas applications with accurate, maintenance-free thermal mass flow measurement. Contact our engineers today to configure the right tri-clamp solution for your system.
info@hbmeter.cc
(+86) 152-3780-0315
1 Jingsan North Road, Xiangfu District, Kaifeng, Henan 475004 China
About HBmeter
AFT Instruments is a high-tech manufacturer delivering precision flow instrumentation for water, chemical, power, industrial automation, and process industries.
View moreContact Us
info@hbmeter.cc
(+86) 152-3780-0315
(+86) 152-3780-0315
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