Overview-Swirl Flow meter
The swirl flowmeter advances vortex flow technology by improving accuracy, simplifying installation, increasing turndown, and reducing the cost of ownership.
The swirl meter operates under the same technology as the vortex flow meter. It takes advantage of vortex shedding principles that occur when a flowing fluid comes up against a bluff obstacle in its path. Additionally, the swirl meter adds a “twist” in conditioning the fluid, which results in the reduced installation considerations mentioned above, while improving performance.
The swirl meter forces incoming fluid through a fixed swirl-inducing element located at the upstream inlet of the meter body. The “swirler” imparts a tangential velocity to the fluid and then accelerates the flow via a reduction in the meter body bore.
Swirl flow meter Principle
A turbine-shaped inlet section forces the axial flow entering the flow meter into a rotational movement. A vortex core forms in the center of the primary rotation. A secondary rotation forms in the vortex core producing thread-like spirals.
The frequency of this secondary rotation is linearly proportional to the flow rate over a wide Reynolds Number range. Pressure variations resulting from the secondary rotation are detected by a piezo sensor and converted into electrical pulses.
FEATURES
PRODUCT BENEFITS
Mass & Volumetric flow monitoring of most gas
- The foremost advantage is fixed parts
- Withstands changes in density, viscosity, temperature, and pressure
- Easy to maintain with a low maintenance cost
- Capable of operating in both directions
Easy to Install, lots of field installation options
Rugged, long-lasting design for the toughest applications
SPECIFICATIONS
Pipe diameter:1/2″inch to 8″inch
Accuracy:1.0%,1.5%
Repeatability:0.33%,0.5%
Pressure rate:≤16 Bar,≤25 Bar,≤40 Bar
Temperature:≤70℃
Velocity:1-50m/s
Ambient temperature:
Operating: -20° to 60°C
Storage: -40° to 65°C
ELECTRIC
Power supply:24VDC 500mA,3.6V Battery
Output signal:
- 4-20mA
- Pulse
- User-definable pulse output for totalized flow
Digital communications: RS485, Hart
Hazardous-Area Location Enclosure
CONNECTION TYPE
Flange type
Aluminum Body
SS304 Body
BULIT IN T&P
Features
SUPPORT FILES
Drawings
- inline swirl Flowmeter 1“ inch drawing
- inline swirl Flowmeter 1.5“ inch drawing
Program
- RS485 Protocol
- Hart Protocol
Related Products
Vortex meter
Turbine meter
Ultrasonic flowmeter
Thermal mass flowmeter
