1, the installation of straight pipe section requirements are low

V cone flowmeter requires low installation straight pipe section, upstream straight pipe: 0-3D; downstream straight pipe: 0-1D.

Due to the V-cone flow sensor's profile and central mounting position, it interacts directly with the high flow area of ​​the flow. The V-cone forces the high flow rate area to mix with the low flow velocity near the tube wall, and the fluid flow changes as the flow approaches the cone. "Plain" develops towards a fully developed flow shape, which can be reformed upstream of the cone, so that the use of a V-cone sensor requires only a shorter straight section than other flow measuring instruments to create a fully developed flow within the tube. .

When the fluid flows close to the V-cone, it can generate a flat flow distribution. Therefore, compared with other differential pressure meters, the upstream interference factor can play a more shaping role. V cone upstream straight pipe: 0-3D; downstream straight pipe: 0-1D. This benefits large-diameter, costly users of pipelines, or users who run pipelines for short periods of time.

2, a very wide range

Can measure the Reynolds number range (Re ≥ 8000) flow (small flow).

The typical turndown ratio is 10:1. Choosing the right parameter can be 50:1. Since the V-cone is suspended in the center of the pipe, it directly interacts with the flow area, forcing the high-velocity area to mix with the low flow rate near the pipe wall. When the flow rate decreases, the V cone continues to interact with the maximum flow rate in the pipe. The V cone sensor can still generate a differential pressure signal as low as 8000 when other differential pressure gauges may not detect the differential pressure signal. This is one of the biggest advantages of the V-cone flowmeter when it comes to detecting small flows.

3, high precision

The V-cone sensor has a primary component accuracy of ±0.5%. The system accuracy depends on the accuracy level of the V-cone sensor and the accuracy grade of the differential pressure transmitter and the secondary instrument.

4, good repeatability

V-cone sensor repeatability better than 0.1%

5, V cone sensor wear resistance, long-term stability of the sensor is good

Because the shape of the V-cone is a contracting fluid, a vacuum effect is generated on the surface of the cone, no impact is generated on the abrupt surface, a boundary layer is formed along the surface of the cone, and the beta coefficient is guided to leave the fluid constant, and the V-cone sensor has a long-term stability performance. Good features.

6, good signal stability

Differential pressure detection generally has "signal fluctuations", even in the case of stable flow conditions, the signal generated by a primary component will also have some fluctuation due to interference. For the V-cone sensor, fluid passes through the V-cone, forming a short vortex behind the V-cone, producing a low-amplitude, high-frequency signal that is converted to a stable V-cone signal. The signal fluctuation is 1/10 of the aperture plate.

7, the permanent pressure loss is small

Because the fluid has no impact on the smooth surface of the abrupt V cone, the V cone sensor has a lower permanent loss than the aperture plate. Also, due to the stability of the V-cone signal, the full-flow V-cone differential pressure signal at the same flow rate is lower than other differential pressure meters. The same β value, the pressure loss is 1/3-1/5 of the orifice

8, V cone f

Due to the unique geometry of the V-cone of the V-cone sensor, it has a wide range of β-coefficients. The standard β-coefficient range is 0.45, 0.55. 65, 0.75, and 0.85.

9, V cone sensor is not blocked, no adhesion, no dead zone, suitable for flow measurement of dirty media

Because the V-cone sensor has the function of self-cleaning, it does not have the stagnant area of ​​particles, residues, and condensation deposits in the fluid inside the tube. It is suitable for measuring the flow of dirty fluids, such as coke oven gas, blast furnace gas, and raw material oil. Residues, etc.

10, can measure high temperature and high pressure medium

Working temperature up to 850°C, maximum pressure 40MPa

11, complete specifications, flexible installation

Optional flange type, clip type, direct welding and so on. Pipe diameter from 15mm-2000mm.

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