DN200 cast aluminum spiral vortex flowmeter

Description :

　　DN200 cast aluminum spiral vortex flowmeter

　　This product is widely used in the measurement and control systems of petroleum, chemical, metallurgical, scientific research and other fields, especially suitable for measuring natural gas, dry coal gas, compressed air, etc.

　　1、 Structure:

　　Compact structure, mainly composed of a housing, vortex generator, sensors (temperature, pressure, flow), rectifier, bracket, and converter.

　　2、 Characteristics:

　　1. Built in pressure, temperature, and flow sensors with high safety performance, compact structure, and beautiful appearance.

　　2. Display temperature, pressure, instantaneous flow rate, and cumulative flow rate on site.

　　3. By adopting a new type of signal processing amplifier and unique filtering technology, the interference signals generated by pressure fluctuations and pipeline vibrations are effectively eliminated, greatly improving the anti-interference ability of the flowmeter and ensuring excellent stability for small flow rates.

　　4. The anti-theft function is reliable, with password protection to prevent parameter changes.

　　5. The header can rotate 180 degrees freely, making installation convenient.

　　DN200 cast aluminum spiral vortex flowmeter

　　3、 Basic parameters:

　　Execution standard: Measurement of gas flow rate in closed pipelines

　　Instrument caliber and connection method: 25, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 using flange connection 25, 40, 50 can use threaded connection

　　Accuracy level: ± 1.5% R (± 1% R needs to be customized)*

　　Range ratio: 1:10; 1:20； 1:30

　　Instrument material: Body: 304 stainless steel or cast aluminum; Impeller: anti-corrosion ABS or high-quality aluminum alloy; Converter: Cast aluminum

　　Usage conditions: Medium temperature: -20 ℃~+80 ℃ Environmental temperature: -30 ℃~+60 ℃

　　Relative humidity: 5%~90% Atmospheric pressure: 86~106KPa

　　Working power supply: A. External power supply:+24VDC ± 15%, ripple ≤ ± 5%, suitable for 4-20mA output, pulse output RS485

　　B. Internal power supply: 1 set of 3.0V10AH lithium batteries, which can work normally when the battery voltage is between 2.0V and 3.0V. When the voltage is below 2.0, an undervoltage indication appears.

　　Whole machine power consumption: A. External power supply:<1W;

　　B. Internal power supply: average power consumption ≤ 1W, can be used for more than three years.

　　Output signal function: pulse signal ①, 4-20mADC current signal ②, control signal ③

　　Communication output function: RS485 communication ④ Real time recording function ⑤ Start stop recording, diary recording, fixed time interval recording

　　Signal line interface: internal thread M20 × 1.5 or other

　　Explosion proof rating: ExdIIBT6 or ExdIICT4

　　DN200 cast aluminum spiral vortex flowmeter

　　4、 Attention:

　　1. It cannot be installed in places with strong vibration, and when the pipeline is long, the vibration generated by the pipeline must be eliminated upstream and downstream of the sensor.

　　2. When using an external power source, the flowmeter must have a reliable grounding and must not share the ground wire with the high-voltage system. During pipeline installation or maintenance, the ground wire shared by the welding system must not be overlapped with the flowmeter.

　　3. When installed outdoors, the upper part should be covered to prevent rainwater from entering or direct sunlight from affecting the service life of the vortex flowmeter.

　　4. In order to facilitate maintenance and not affect the normal transportation of fluids, a bypass pipeline must be installed. When the gas contains larger particles or longer fiber debris, a filter must be installed on the vortex flowmeter.

　　5. Installation should be carried out in accordance with relevant regulations for explosion-proof places, and relevant safety regulations should be followed during installation and maintenance.

　　6. There should be no strong external magnetic field interference or strong mechanical vibration around, and the influence of high temperature heat sources and radiation heat sources should be avoided, as well as the influence of highly corrosive environments.

AfterSalesService :

• DN200 Spiral Vortex Flow Meter