High Performance V Cone Flow Meter Wear-Resistant And Self-Cleaning
Product Description
V-cone flow meter is a differential pressure type flow measurement
device. So far it is more than 100 years since all kinds of flow
measurement device that based on pressure differential theory been
used. Pressure differential theory is based on energy conversion
principle in sealed piping, means that to the steady liquid, flux
and flow velocity's square root is direct ratio.
Product Parameters
| (1)Long-term stability: | ± 0.1% F.S / Y |
| (2)Output: | 4~20mA |
| (3)Repeatability: | ± 0.1% |
| (4)Minimum flow velocity: | 0.1m |
| (5)Turndown ratio: | Normally15:1; max50:1 |
| (6)Reynolds number range: | 8 × 103 ~ 5 × 106 |
| (7)Operating pressure: | ≤ 16MPa, 42MPa(maximum) |
| (8)Operating temperature: | -160 °C ~ 700 °C |
| (9)Nominal diameter: | φ15~φ2000 (1/2"~120") |
| (10)Environment temperature: | ≤ 80 °C |
Product Image
Working Principle:
V-cone flow meter is a differential pressure type flow measurement
device. So far it is more than 100 years since all kinds of flow
measurement device that based on pressure differential theory been
used. Pressure differential theory is based on energy conversion
principle in sealed piping, means that to the steady liquid, flux
and flow velocity's square root is direct ratio. We know that
pressure will reduce when velocity increase, when medium approaches
to cone the pressure is P1, but when medium is passing to cone's
throttled area, because passing area reduced, speed increased,
pressure reduced to P2, both P1 and P2 are connected to
differential pressure transformer through pressure mouth. When flow
rate is changed, the pressure differential value will increase or
decrease accordingly.
Features
1.Low installation requirement: Rectifying behavior changes the
velocity distribution, eliminating the eddy current and blind
space. upstream straight pipe 0-30D, downstream straight pipe 0-1D.
2. Turndown ratio : 10:1 (usually);50:1(maximum)
3. Small pressure loss and signal stability: V-cone differential
pressure signal is high-frequency low-amplitude signals. When the
same β value, the pressure loss is 1/3~1/5 of orifice plate's and
signal fluctuation is 1/10 of orifice plate's.
4.Strong resistance against wear: After the streamline V cone is
throttled, the vacuum effect will be generated on the surface of V
cone to keep the V cone from being worn easily.
5.Automatic cleaning, no block, no adhesion: the complete purging
design of V cone avoids the settlement of residue, coagulation or
particle.
6.Long-standing favorable stability: the value of β can remain the
same for long and the accurateness in measurement can be ensured
for a long period.
7.High precision and good repeatability: accuracy:±0.5% F.S;
repeatability:±0.1% F.S
8.Wide range of the value of β: the unique geometrical shape of V
cone flow sensor allows wide range of the value of β.
9.Type specification complete, multi-choice of
installation:pipeline, flange tapping, wafer and plug-in.
10.Wide range of nominal diameter: φ15~φ2000 (1/2"~120")or
customize.
11.The ability to measure high temperature and high-pressure
medium:maximum working temperature 700℃; maximum pressure 42MPa.
12.The ability to measure the dirty medium (coke-oven gas, blast
furnace gas, feed stock and residual oil)
13.The ability to measure gas and liquid two-phase medium (moisture
and condensed water)
Product classification and application
1.classification:
A:for installation: Pipe welding, flange , wafer and plug-in.
B:for pressure measurement methods:pressure tap, face flange
pressure tappings, plug-in male flange pressure tappings
C:for medium and condition:basic type, high temperature and
pressure type, temperature and pressure compensation type,
anti-corrosive type and anti-adhesion type.
2.Application: metallurgy, chemical industry, Chemical fiber industry, petroleum,
nature gas, power supply, Hydraulic, mines, machinery, materials
industry , city energy, environmental monitoring.
3.Conditions:
nominal diameter: φ15~φ2000, flow rate:≥0.1m/s, working
pressure:-0.1MPa~42MPa, working temperature:-160℃~700℃,
environmental temperature≤85℃.
4.Applicate for many kinds of fluid:
Besides of normal gas ,liquid and steam,it also applicate for all
kinds of gas,liquid and steam with high dust ,high suspended
solids,high viscosity, strong corrosive,crystallize and
supersaturated.
5.typical fluid:
| gas | liquid |
| Coal-gas: | coke oven gas, blast furnace gas, city gas | Oils: | crude oil, fuel oil,emulsified oil, diesel fuel |
| Nature gas: | ≥5% moisture content nature gas | Water: | raw water, drinking water, polluted water |
| Hydrocarbon gas | alkanes, olefin | Various aqueous solutions | acid, lye, brine |
| Corrosive gases: | hydrogen, helium, argon, oxygen
nitrogen | Organic chemicals: | methanol,glycol,xylene |
| Air: | hydrous air, dusty air, compressed air | | |
| Flue gas: | boiler flue gas,furnace flue gas | | |
| Steam | Special fluid |
| Saturated steam | Oil +HC+sand |
| Superheated steam | H20+CO2 etc. |
Technical parameters:
| Accuracy class: | 0.5 |
| Long-term stability: | ± 0.1% F.S / Y |
| Repeatability: | ± 0.1% |
| Minimum flow velocity: | 0.1m |
| Turndown ratio: | Normally15:1; max50:1 |
| Reynolds number range: | 8 × 103 ~ 5 × 106 |
| Operating pressure: | ≤ 16MPa, 42MPa(maximum) |
| Operating temperature: | -160 °C ~ 700 °C |
| Nominal diameter: | φ15~φ2000 (1/2"~120") |
| Environment temperature: | ≤ 80 °C |
| Relative humidity: | 5 ~ 85% |
| Output signal: | 4 ~ 20mA |
| Power supply: | 24VDC |
| Voltage of DP transmitter : | 24VDC |
| Current of DP transmitter : | 4mA ~ 20mA |
| Voltage of intelligent flow totalizer: | 220VDC |
| Current of intelligent flow totalizer: | 4 ~ 20mA |
| Communications mode of DP transmitter: | HART&BRAIN |
| Communications mode of smart flow computation indicator: | RS232 & RS485 |
