HVF Intelligent Vortex Flow meter

HVF Intelligent Vortex Flow meter is a new generation of products. Compared with conventional vortex flow meter, HVF have a more universal converter. The same converter can suitable for all diameter of the sensor. It can be measured with DCS control systems and other components, which can also be measured separately as a measuring instrument in the management, trade settlement application. HVFwidely used of the flow measurement field.

Main Features of HVF Intelligent Vortex Flow Transducer  

1. Best of HVF Intelligent Vortex Flow Transducer is piezocrystal built in bluff body to avoid fluid turbulence caused by external type, no zero drift, and high repeatability.    

2. Most scientific probe shape, wall thickness, height, probe rod diameter and matching piezocrystal, adopts advanced CNC to machine to ensure technical parameters of proper alignment and smooth finish etc., and with special treating process to maximatily overcome existed signal influence by intrinsic self-oscillation frequency.    

3. HVF Intelligent Vortex Flow Transducer has good commonality and interchangeability. Adopt advanced CNC to machine parts such as transducer body and bluff body etc. to ensure machining accuracy to make parts( especial for bluff body) has good commonality, so that, repeatability and accuracy won’t be affected by parts change and get signal with high signal noise ratio and good stability.   

4. Simple & fixed structure, no moving parts, high reliability, convenient maintenance.   

5. Wide measuring range, turndown ratio can reach 10:1 in Reynolds Number 2×104 ~ 7× 106.  Detecting element not contact with the measured fluids directly, stable performance and long service life.   

6. Detecting probe and bluff body installed independently, and high temperature resistance piezocrystal sealed in bluff body make transducer simple structure, good commonality and high stability.  

7. Output pulse signal and current signal directly proportional to flowrate, and have RS-485, Hart, ModBus communication for convenient computer networking.   

8. When vortex flow transducer measures liquid volumetric flow, it does not need temperature, pressure compensation. Vortex output signal is linear to velocity, that is to say, directly proportional to volumetric flowrate. When measure gas or steam, it needs temperature and pressure compensation. Compensating pressure and temperature is to get volumetric flow of gas under standard state or mass flow of steam.   

9. Low pressure loss, just 1/4 ~ 1/2 of orifice plate.   

10. In a specific range of Reynolds Number, flow character just refers to bluff body shape and dimension, and not affected by fluid pressure, temperature, viscosity, density and ingredients.   

11. Wide application, can measure flowrate of steam, gas, liquid etc.

Basic techinical specification

Accuracy of liquid: ± 1.0% gas, steam: ± 1.0% FS (flow rate of <35m / s) ± 1.5% FS                    (flow rate of 35m / s ~ 80m / s)

Diameter: 25 mm,40mm,50mm,80mm,100mm,150mm,200mm,250mm,300 mm optional

Medium temperature range: -25 °C ~ 250 °C

Ambient temperature range: -25 °C ~ 60 °C

Power supply: 24V dc or 3.6V Li-battery

Output: 4-20 mA or Pulse signal (8~10V or 0.7~1.3V)

            Pulse duty ratio about 50%, transfer distance is 100m

            Current signal 4~20 mA, transfer distance is 1000m

            Working pressure: see model code selection table

Explosion levels Ex d Ⅱ CT1 ~ T6, Protection class IP65