Supply SHZ Series Vortex Street Flow Gauge Wholesale Factory

Working Principle

Vortex Flow Meter The SHZ Series Vortex Street Flow Gauge works on the Karman vortex principle. When a triangular bluff body is installed in the flowing medium, regular vortices are generated alternately on both sides of the vortex generator. These vortices are arranged symmetrically downstream and form a vortex street. The frequency of vortex shedding is proportional to the average flow velocity, so the instrument measures flow rate by detecting the vortex frequency. When the medium passes through the pipeline, the alternating vortices formed behind the shedder bar are converted into corresponding signals for flow monitoring and control.

Technical Characteristics

No moving parts, long-term stable operation.
Simple structure, easy installation and maintenance.
High accuracy for liquid measurement.
High accuracy for gas and steam measurement.
Anti-vibration sensor design for better field stability.
Flexible installation for different process pipelines.
Can be installed horizontally, vertically or at an angle.
Suitable for continuous industrial flow monitoring.

Technical Parameter

Executive Standard	Vortex Flow Sensor (JB/T9249-1999)
Instrument Aperture (mm)	15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 300 Plug-In: 200~1500
Nominal Pressure	1.6MPa, 2.5MPa, 4.0MPa
Precision Class	Liquid: ±1.0%, ±0.5% Gas Or Steam: ±1.0%, ±1.5% Insert Type: ±1.5%, ±2.5%
Range Ratio	1:10, 1:15, 1:20
Medium Temperature	-30~+250°C -30~+350°C -50~+450°C
Ambient Temperature	-20~+60°C -50~+50°C
Relative Humidity	5%~90%
Atmospheric Pressure	86kPa~106kPa
Signal Output	Pulse Signal, 4~20mA
Communication Output	RS485 Communication Output, HART Protocol
Working Power Supply	24VDC ±15%, Ripple ≤1% 3.0V / 10AH Lithium Battery
Electrical Interface	Internal Thread M20×1.5
Explosion-Proof Class	ExiaIICT5 Or ExdIIBT6