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OW-W type Velbar flowmeter
The OW-W type Velbar flow sensor is a high-precision measuring instrument developed based on the Pitot tube speed measurement principle, advanced aero
Product details
OW-WThe V-type flow sensor is a high-precision measuring instrument developed based on the Pitot tube speed measurement principle, advanced aerodynamic principles, and wind tunnel testing technology. It is a differential pressure, rate averaging flow sensor. It represents flow rate through the average total pressure and static pressure difference of sensors in the fluid, and is mostly used to measure the flow rate of liquids, gases, and vapors.
1、 HL-W typeverabarCharacteristics:
(1) The measuring surface designed based on aerodynamic principles, after special technical processing, can generate very little fluid traction force and vortex shedding force.
(2) The static pressure generated by the static pressure hole on the side is located before the separation point between the fluid and the sensor, and is a stable non pulsating differential pressure signal.
(3) There are no movable parts in the structure, which ensures both the lifespan of the sensor and long-term stability.
(4) High precision (± 0.5-1.0% F.S) and good repeatability (± 1.0%).
(5) The static pressure port of HL-W type Velbar flowmeter is located on both sides of the sensor and is extremely insensitive to substances and dirt in the medium.
(6) HL-W typeWeiliba flow rateBasically no maintenance is required, installation is simple, and the price is low.count
(7) For the convenience of customers, our HL-W type Velbar flowmeter has integrated and split structures.
(8) The intelligent integrated HL-W type Velbar flowmeter adopts advanced circuit design, high functionality, low power consumption, and large screen LCD display of flow information. The internal advanced memory ensures data security.
(9) Integrated HL-W type Velbar flowmeter system, can be powered by batteries and external 24VDC, output 4-20mA, pulse signal, containing Hartagreement.
2、 OW-W typeWeiliba flow ratecountSpecification
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Applicable diameter
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25-6000mm
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measurement accuracy
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±0.5～1.0%F.S
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repeatability
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±1.0%
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Temperature
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-100~500 ℃, special can reach 800 ℃
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Applicable pressure
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0~25MPa, special can reach 40MPa
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Upper measurement limit
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Depending on process requirements and probe strength
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Measurement lower limit
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Depending on the minimum differential pressure requirement for measurement
Gas, minimum differential pressure 0.025KPa, flow rate 4.5m/s
Liquid, minimum differential pressure 0.260KPa, flow rate 0.6m/s
Steam, minimum differential pressure 0.400KPa, flow rate 9.7m/s
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Range ratio
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On the premise of ensuring accuracy, the range ratio is 10:1
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Applicable Medium
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Full tube, single gas, steam, and liquid with viscosity not exceeding 10 centipoise
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Requirements for straight pipe sections
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Normally, the first 7D is followed by the last 3D
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Selection Table of Velbar Flow Sensor
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OW-W
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Nominal Diameter
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-XXX
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150Representing DN150
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structural style
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Z
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Intelligent integration
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L
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split type
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Measurement medium
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1
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liquid
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2
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gas
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3
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steam
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Ontological form
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S
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Pipeline type SO (with neck flat welding flange connection method)
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W
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Pipeline type WN (with neck welding flange connection method)
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F
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Flange compression type
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B
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Direct welding type
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J
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Insulation jacket type
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A
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Anti-corrosion type
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P
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Square tube cone
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H
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Pipe clamp type
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Pipeline static pressure
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A
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0～0.6MPa
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B
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0～1.0MPa
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C
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0～1.6MPa
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D
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0～2.5MPa
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E
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0～4.0MPa
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F
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0～6.3MPa
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G
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0～10MPa
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H
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0～16MPa
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I
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0～25MPa
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J
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0～40MPa
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Compensation method
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0
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No compensation
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P
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Single pressure compensation
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T
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Single temperature compensation
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Q
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Dual compensation for pressure and temperature
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Integrated signal output
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0
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No signal output
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1
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4～20mA
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2
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pulse signal
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3
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Hart
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Integrated power supply mode
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0
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Internal battery power supply
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1
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Dual selection of battery and 24VDC power supply
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2
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External 24VDC power supply
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The inner and outer diameters of the pipeline, as well as the material of the pipeline, need to be provided. Differential pressure transmitter, intelligent flow meter, and steam measurement with condenser are required. Connection methods: integral welding, flange, thread.
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