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vortex shedding flowmeters for cooling water flow measurement Pipe size DN15-300
General introduction
The vortex shedding flow meter: when a fluid passes by an object or obstruction, oscillations can occur. Examples of these oscillations in nature include the whistling caused by wind blowing by the branches of trees, the swirls produced downstream of a rock in a rapidly flowing river, and the waving of a flag in the wind. Note that in all of these examples, when the flow is slowed, the oscillations stop. That is, the whistling stops when the wind dies down, the water flows calmly around the rock when the river is not flowing rapidly, and the flag does not wave in a mild breeze.
Features
Turbine blade option
Technical data
Diameter | Flow range | Temp. | Ambient Temp. | RH | Pressure | Pressure loss | ||
mm | +/- 1% | +/- 1.5% | +/- 2.5% | ℃ | ℃ | - | Mpa | KPa |
LWGQ15 | - | - | 1.5 ~ 7.5 | -20 ~ 60 | -20 ~ 50 | ≤95% | 6.4 | 1 |
LWGQ25 | - | - | 6 ~ 42 | 1 1.6 2.5 | ||||
LWGQ40 | 8.4 ~84 | 8.4 ~160 | 6.5 ~200 | |||||
LWGQ50 | 16.8 ~168 | 16.8 ~336 | 11 ~336 | |||||
LWGQ80 | 34 ~340 | 34 ~680 | 34 ~1000 | |||||
LWGQ100 | 51 ~510 | 51 ~1020 | 51 ~1850 | |||||
LWGQ150 | 98 ~980 | 98 ~1960 | 130 ~3000 | |||||
LWGQ200 | 170 ~1700 | 170 ~2550 | 140 ~4000 | |||||
LWGQ250 | 200 ~2000 | 200 ~3450 | 200 ~6000 | |||||
LWGQ300 | 400 ~4000 | 400 ~6000 | 250 ~7500 |
Model selection
Calculation logic of gas work flow and standard cubic flow converting
Formula: pV=nRT
P-pressure, V-measurement, n-material weight, R-constant, T-absolute temperature
Under ideal gas status, unit: pa (pressure), m3, mol,k, R=8.31
It’s actually to convert work flow into standard cubic flow at 20 C, 101.325kpa.
For example, work temp. T=32C, work pressure:P= 0.6 Mpa, work flow Qw=100 m3/h, the standard flow Qs:
Qs=100 * (701325*273) / (101325*305)=619.5345 m3/h
Applications:
For air, natural gas, coal gas flow metering volumetric measurement in petroleum, chemical processing, metallurgy. Combined with our accumulator, it can measure the gas / air cubic flow or weight flow.
Competitive advantage:
Lab equipment - Piston pressure regulator
Lab equipment - static flow calibrating line