V-cone flowmeter

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1. Scope of application of V-cone flowmeter

1. nominal diameter: 15mm ≤ DN ≤ 1800mm

2. nominal pressure: PN ≤ 40MPa

3. Reynolds number range: 5 × 10 ≤ ReD ≤ 10

4. accuracy level: 0.5 level, 1 level

5. straight pipe length: front 1-3D, back 0-1D

6. applicable media: various media such as gas, liquid, steam

7. aperture ratio: β=0.3-0.75

2、 Wide caliber range: DN25 to DN2000; 1

3、 Accuracy level: 0.5 level (the accuracy of differential pressure flow transmitter should be higher than 0.2 level, including 0.2 level), (β: 0.45-0.85, when β<0.55, the accuracy level is ≤ 0.30 when the range ratio is 4:1)

2. Advantages of V-cone flowmeter

1. Advantages: (1) Uniformity effect on fluid, stable signal: "Signal fluctuation" is 1/10 of the orifice plate, so the installation requires a short straight pipe section, solving the long-standing problem of long straight pipe sections for differential pressure instruments (front 0-3D straight pipe section, rear 0-1D straight pipe section) (2). High accuracy ± 0.5%, good repeatability ± 0.1%, with a range ratio of 10:1

(3), wear-resistant, with long-term stability and accuracy, no need for repeated calibration

(4), with self-cleaning function, the dirt flow control body will not be blocked. For extremely dirty fluids, our companys independent intellectual property anti blocking patented technology has completely solved the problems of blockage and adhesion of throttling components and pressur

（5）、 Sensors are metal bodies without electronic components, therefore they are resistant to high temperatures and vibrations.

（6）、 The applicable fluids are very wide, and both low and high flow rate fluids can be accurately measured. The specifications are complete and suitable for orange peel diameter estimation from DN15 to DN3000.

（7）、 Small pressure loss: with the same β value, the pressure loss is 1/3 to 1/5 of the orifice plate

(8). Flexible installation method: optional pipeline method, circular flange type, direct welding type, square tube type

3. Structure of V-cone flowmeter

V-cone flowmeter is a new type of differential pressure flow measurement device that uses a pointed cone installed coaxially in the measuring tube as the throttling element. It is a new type of throttling device based on the principle of Venturi tube measurement and integrates the advantages of classic Venturi tube, annular orifice plate, and wear-resistant orifice plate. Due to its special structural form, the V-cone flowmeter has the following characteristics:

1. The upstream and downstream straight pipe sections are required to be relatively short: the length of the upstream straight pipe section is 0-3d, and the length of the downstream straight pipe section is 0-1d.

2. Accuracy: ± 0.5%; The repeatability is 0.1%; The range ratio reaches 15:1.

3. Anti dirt and low pressure loss.

4. It has the function of flow regulation and mixing of fluids.

5. Easy to install, it is an ideal leak resistant flowmeter for technical transformation; 6. Maintenance free disassembly or minimal maintenance workload.

4. What i

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