Nitrogen flow meter selection

Project Overview

　　So in the actual selection, which flow meter should be chosen to measure it? The following is an introduction to several gas flowmeter characteristics and differences. For your reference in the selection, choose to the appropriate flowmeter equipment.

　　Gas turbine flowmeter: In addition to measuring nitrogen, it is also suitable for measuring natural gas, city gas, propane, butane, air, ammonia and industrial inert gases. Rectifier performance is excellent, low requirement of straight pipe section before and after installation, RS485 interface to form a network communication system, which is convenient to realise automation management. High accuracy of operation, reliable performance, micro-power consumption, is the chemical industry, electric power, metallurgy, industrial and civil boilers and other gas and urban natural gas, gas regulator station metering and gas trade measurement of the ideal instrument. Instrument calibre DN20~DN300. medium temperature -20℃~+80℃. Signal output: pulse signal, 4-20MA, control signal, RS485 communication. Liquid crystal display, instantaneous flow rate, cumulative flow rate, with temperature and pressure compensation section display temperature and pressure.

　　Vortex flowmeter: Installation can choose flange clamping installation, flange connection, insertion installation and so on. Instrument calibre DN15~DN300, flange connection. When the pipeline calibre is larger than DN300, insertion vortex flowmeter can be selected. Applicable media temperature in -40 ℃ ~ +350 ℃. Can bring its own integrated temperature and pressure compensation, more accurate measurement. 4-20MA, RS485, HART and other output protocols can be selected. When the rated pressure of pipeline is ≥1.6MPA, high pressure type flowmeter can be customised according to the pressure. The range of the flowmeter can be selected according to the actual working flow range.

　　Rotary vortex flowmeter: according to different working pressure, you can choose different materials. 1.6MPA below the use of aluminium alloy, 1.6MPA above can choose 304 stainless steel material. Flange connection. Instrument calibre: DN15~DN200. suitable for measuring medium temperature -20℃~+80℃. It is a commonly used instrument in petroleum, chemical, electric power, metallurgy and other industries.

　　Roots flowmeter: low requirement of straight pipe section before and after installation, suitable for installation in the environment of the narrower occasions, in the harsh climate conditions to accurately measure the gas flow of the load changes. High precision and large flow range. Instrument calibre DN25 ~ DN250, medium temperature -20 ℃ ~ +80 ℃, start-stop record, daily record, timed intervals and other records, explosion-proof level of intrinsically safe.