Maidesheng China MDS51 Series Intelligent V-Cone Flowmeter Measurement Products

The American Madshen V cone flow sensor changes the traditional shortcomings of fluid shrinking toward the center and large pressure loss,and instead gradually shrinks and spreads under the axially symmetrical side wall shrinkage method. This is a new revolution in the throttling and contraction of the throttling device,and is a major breakthrough in the structural design of the throttling device. It not only solves the technical defects of the old differential pressure flowmeter,but also has advantages that flow sensors with other measurement principles do not have.

The V-shaped cone and tube are pre-precision processed. When the fluid flows through the V-cone,the structure and shape of the V-cone allow the fluid to have a smooth transition area before shrinking,and the fluid is not forced to shrink. to the center line of the pipeline,but gradually shrinks towards the inner side wall of the pipe. A differential pressure will be generated at the front and rear ends. It is equipped with the corresponding differential pressure transmitter and accessories (three groups of valves,pressure valves,etc.) to form a V-cone flowmeter.,thereby measuring the flow rate.

Flow formula:

in:

—Equivalent diameter ratio

ρ—Density under fluid operating conditions

D—Pipe inner diameter

K-K coefficient (related to the diameter ratio of the throttling component (stream contraction coefficient),pressure taking method,Reynolds number and pipe roughness

d-Diameter at the largest cross-section of the V-cone throttling member

qv—volume flow

ε—Gas expansion coefficient (for incompressible liquidsε=1)

1. Nominal diameter: DN15～DN2000

2. Nominal pressure: 0～40MPa

3. Accuracy: The accuracy level is 0.5% (the accuracy of the differential pressure transmitter should be higher than level 0.2,inc level 0.2)

4. Repeatability: better than 0.1%

5. Medium temperature range: Flow measurement of medium from -40 to 700°C can be achieved

6. The range ratio is usually 10:1

7. Small pressure loss: For the same β value,the permanent pressure loss is 1/3 to 1/5 of the orifice plate pressure loss.

8. Measuring fluid: suitable for measuring almost all steam,gas and liquid

9. Front and rear straight pipe sections: 3D (front),1D (rear),square tube V-cone flowmeter does not require front and rear straight pipe sections

11. Structural materials:

12. Surface coating:

13. Explosion-proof level (differential pressure transmitter): explosion-proof,intrinsically safe,and non-explosion-proof are available (differential pressure transmitter)

14. Power supply (differential pressure transmitter): 12~24VDC,

15. Output signal (differential pressure transmitter): 4~20mA or HART protocol

16. Display and output:

MDS51 V-cone flow sensor selection table