Original
1.product information
V Cone Flowmeter is the newest high precision meter that can measure
all kinds of Reynolds number. As well as can contentment all medium
conditions, which required its operated principle as the same with
others differential pressure type. Because of they are all based on
principle of conservation of energy in the seal pipe. It has excellent
performance as the one of kind structure.
2.Working principal
V
Cone Flowmeter is a kind of differential type Flowmeter. With the
differential principle design of flow meter has the application history
of more than one hundred years. Differential Flowmeter was based on
principle of energy conversion in seal pipe, that is for the stability
fluid , Line pressure with the medium in the pipeline flow velocity is
inversely proportional to the square root: speed increased while the
pressure will decline. When medium is close to the cone, the pressure is
P1, while when the medium through the cone’s throttling area, speed
increased but the pressure will decline to P2.
3.Features
3.1 V type cone Flowmeter is a kind of differential flow instrument; it
was based on the principle of conversation of energy, if in the case of
steady flow, pipe flow velocity and differential pressure in the direct
ratio.
3.2 measuring stability is good, flow coefficient remain unchanged lasting for a long time.
3.3 high precision, good repeatability, can fulfill the accuracy measurement.
3.4 Widely measurement range, can reach to 10:1 without secondary instrument software correction.
3.5 Low requirement for straight pipe installation, small pressure loss.
3.6 The medium to be measured adaptability is strong, can measure the
cleaning fluid, fluid containing solid grains, low pressure fluid, high
humidity gas and all kinds of dirt fluid. Flow components with
self-cleaning function, resistance to wear.
Measured Mediums
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liquids, gases and steams (NOTE: the mediums should be unidirectional or can be seen as unidirectional.) |
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When the dryness of saturated steams ≥85%, they can be seen as unidirectional. | |||
Temperature of Mediums |
- 40°C ~ + 350°C |
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Pressure of Mediums |
1.6MPa, 2.5MPa, 4.0 MPa |
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For over 4.0 MPa, please contact us freely, for it needs special customization. | |||
Accuracy |
1.0; 1.5 |
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Span Rate |
1:8 ~ 1:30(compared with the standard atmospheric pressure) |
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1:8 ~ 1:40 ( compared with the nominal temperature water) | |||
Flow Range |
Liquids: 0.4 ~ 7.0 m/s |
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Gases: 4.0 ~ 60.0 m/s | |||
Steams: 5.0 ~ 70.0 m/s | |||
Nominal Diameter |
DN 25, 40, 50, 65, 80, 100, 125, 150, 200, 250,300...1000mm |
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Materials |
1Cr18Ni9Ti |
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Reynolds No. |
Normally, 2*104 ~ 7*106 |
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Resistance Coefficient |
Cd ≤ 2.6 |
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Licensed Vibration Acceleration |
LUGB type ≤ 0.2g |
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Class of Protection |
IP65 |
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Class of Explosion-Proof |
Intrinsically Safe Explosion-Proof: Exia II CT2 ~ CT6 |
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Explosion Suppression: Exid II CT4 | |||
Conditions of Surroundings |
Temperature of Surroundings: |
Non-Explosion Proof : -40°C~ +55°C |
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Explosion-Proof Surroundings: -20°C~ +55°C | |||
Relative Humidity: |
≤ 85% |
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Atmospheric Pressure: |
86 ~ 106 kPa |
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Power Supply |
Non-Explosion Proof Type |
Pulse type: |
+12 VDC |
Current type: |
+24 VDC |
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Explosion-Proof Type |
Current type: |
+24 VDC |
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Output Signal |
Frequency pulse signal 2~3000Hz, low level voltage ≤1V, high level voltage ≥ 6V |
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Two-wire system 4 ~ 20mA signal (isolation output), load ≤ 500Ω. | |||
Huaheng Instrument is well-known as one of the professional and credible led display digital hydraulic ultrasonic flowmeter manufacturers and suppliers in China for the high flexibility and good function of its products. Adhering to our principle, out factory welcomes you to buy various types of high quality and low price products from us, and OEM service is also offered.
