Main technical features of V-cone flow meter

V-cone flow meter is a new type of differential pressure flow meter.In addition to all the advantages of differential pressure flow meter,the V-cone flow meter has the lowest requirement for straight pipe section in all differential pressure flow meters.Here are the main features and technical parameters of the V-cone flow meter:

1. High accuracy and high repeatability

The measurement accuracy of V-cone flow meter can reach + 0.5% and repeatability is between ±0.1%.

2. Wide range

The range of the V-cone flow meter is beyond the traditional differential pressure flow meter, and the range ratio can reach 10:1.

3. No harsh requirements for straight pipe section

The V-cone can effectively improve the profile of the flow velocity distribution, making it more able to reduce the requirements for upstream straight pipe sections than other differential pressure instruments. The V-cone upstream straight pipe section 1-2D, downstream 3-5D.This greatly reduces the cost consumption and trouble of the user on the straight pipe section.

4. self-cleaning function

Acceleration of the flow velocity at the pipe wall makes the viscous impurities,condensate,and dust in the fluid can not be deposited or adhered to the pipe wall near the V cone and the cone,and the pressure guiding hole is not easily blocked.

5. Wear resistance, good long-term stability

The cone throttling element is designed to be obtuse. When the fluid passes through the cone, the boundary layer is formed,leaving the fluid out of the throttling element.The boundary layer effect prevents the dirty fluid from wearing the throttling element,while its self-cleaning function keeps the inner diameter of the pipe constant.Therefore, its β value remains unchanged for a long time,so there is no need to repeatedly calibrate,and has long-term stability.

6.Stable differential pressure signal

Traditional differential pressure flow meters have a "signal jump" phenomenon, which means that even if the fluid flow is stable,the signal pulsations still exist.The constant eddy current caused by the common orifice plate produces low-frequency, large-amplitude interference signals, which seriously affects the stability of differential pressure and the V-cone flow meter is the opposite. It produces a small vortex with high frequency and low amplitude, which has little effect on the stability of the differential pressure.Typical applications:coke oven gas, flue gas,  propylene gas,natural gas, hydrogen, nitrogen, organic gases, air, circulating water, multiphase liquid, slurry, liquefied petroleum gas, feedstock oil, ammonia steam, etc.

7.Small relative pressure loss

Because there is no sharp edge, the pressure loss caused by V-cone flow meter is constant and much smaller than that caused by orifice plate.

8. Wide range

It can measure liquid, gas, steam and gas-liquid two-phase medium. The flow conditions can be from low temperature to supercritical state, the working temperature is up to 800℃,the maximum pressure is 40 MPa,and the differential pressure signal generated is from the lowest  less than 0.1 KPa to the highest 10 KPa.