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BF20 Wedge Flow Sensor |
Description:
When filled with fluid flow through the pipeline，flow sensor in the upstream side of the wedge and the downstream side of the measured fluid differential pressure, differential pressure transmitter to signal to 4 ~ 20mA.dc differential current signal output, after the artificial intelligence flow calculator treatment, the indication shall flow value. Measurement of the gas and steam, with the pressure transmitter and temperature transmitter can be composed of high-precision measurement system.
Wedge flow meter is a new meter, the test piece is a V shaped wedge (also known as wedge-shaped cutting parts), it's smooth vertex down, this will help with suspended particles of liquid or viscous liquids passed will not be cutting pieces of the upstream side of the stagnant production. Therefore particularly suitable in the petroleum and chemical industries for the volume flow and mass flow measurements.
Main features:
A good repeatability, high accuracy, by the wedge flow meter calibration, accuracy class 0.5.
2 with self-cleaning ability, no dead zone.
3, wear resistance, long life and high reliability.
4 permanent pressure loss smaller than the orifice.
5 a body structure, on-site installation without pressure pipeline by installation guide, direct and pipe thread or flange connection. Construction of time-saving and easy maintenance.
Measuring principle:
Fluid through the wedge flow meter, due to wedge the throttle role in its upstream and downstream side produced a flow rate proportional to the square of the differential, this differential pressure from the wedge to take on both sides of mouth leads, sent to the poor pressure transducer output into electrical signals, then calculated by the flow meter by the special intelligence operation, the flow value can be learned.
Wedge flow meter flow equation:
Cε πD2 2ΔP
qv = m
1-m2 4 ρ
Type in: qv - fluid flow, m3 / s
C - discharge coefficient;
ε - can expansion coefficient;
πD2
m - hole and pipe area ratio, S1 / -
4
S1 - bow-type flow area, m2
D - pipe diameter, m;
ΔP - Differential Pressure, Pa
ρ - density of the measured medium, kg/m3
Main features:
A good repeatability, high accuracy, by the wedge flow meter calibration, accuracy class 0.5.
2 with self-cleaning ability, no dead zone.
3, wear resistance, long life and high reliability.
4 permanent pressure loss smaller than the orifice.
5 a body structure, on-site installation by installation guide without pressure pipe, threaded pipe directly or flange connection. Construction of time-saving and easy maintenance.
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BF20 Wedge Welding Flow Sensor |
Description:
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Flow instruments
