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1. Qingdao Aobo ORB-LUGB Vortex Street Steam Flow Meter 80 Size
Qingdao Aobo ORB-LUGB Vortex Street Steam Model World Watch Flow Meter DN80 Specification Parameters and Selection Guide
1. Core Parameters nominal diameter: DN80 (flange mounted) Measuring medium: steam (saturated/superheated), gas, liquid Accuracy level: liquid ± 1.0%, gas/steam ± 1.5% Pressure resistance level: standard 1.6MPa/2.5MPa, customizable 4.0-10.0MPa Temperature range: -20 ℃~350 ℃ (special calibration required for high temperature steam) Body material: 304 stainless steel (contact medium part)
2. Key Features 1 Wide range ratio: usually up to 1:10~1:15, suitable for scenarios with large flow fluctuations No moving parts: using piezoelectric sensors to reduce wear and maintenance requirements Integrated display: On site LCD screen displays instantaneous/cumulative traffic in real-time Signal output: 4-20mA analog signal+pulse output, supporting RS485 communication (MODBUS protocol)
III. Selection precautions • Steam type: saturated steam requires temperature compensation, superheated steam requires temperature and pressure compensation • Installation requirements: front and rear straight pipe sections are recommended to be 20DN/5DN (to ensure measurement accuracy) buried • Protection level: IP65 (outdoor rain and dust protection), explosion-proof type can be selected Ex d Ⅱ CT6
IV. Typical application scenarios • Boiler steam metering (condenser required) • Chemical process steam consumption monitoring • Food processing industry high temperature medium flow control Data source: Qingdao Aobo Instrument 2023 version product technical manual, specific selection needs to be based on actual working conditions paramete
2. Measurement range of DN80 gas vortex flowmeter
The measurement range of DN80 gas vortex flowmeter does not have a unified fixed value, and may vary greatly depending on the product model and usage conditions (gas distribution type, temperature and pressure). Common reference ranges are as follows
1. Conventional mainstream product parameter range - gas flow rate range: generally 5m/s~50m/s - corresponding volume flow rate range: about 100m ³/h~1000m ³/h. 2. Some niche/customized product parameter ranges. The gas flow rate range of some products is 4m/s~35m/s. Selection precautions: When selecting and using, please be sure to refer to the official instructions and technical parameters of the corresponding product.
The table shall prevail.3. Several key points for selecting, installing, and using steam vortex flowmeter
The key points for selecting, installing, and using steam vortex flowmeter are as follows: Selection key points: Scientific and accurate beam destruction for steam density compensation: When measuring steam mass flow rate, steam pressure and temperature changes must be considered, and density compensation should be carried out through a flow integrator.
. Platinum resistors for measuring steam temperature need to be installed in a standardized manner, including insertion into the center of the pipeline, installation at 5 times the diameter downstream of the flowmeter, and insulation measures taken at the installation location. When measuring steam pressure, if a pressure pipe is used for pressure measurement, zero point shift must be performed, and it can also be corrected in the flow accumulator; The pressure transmitter is installed