Which type of pressure transmitter is commonly used in the chemical industry?

In the field of chemical industry application, pressure transmitter plays a very important role, its application is very extensive. Pressure transmitter sort is more, according to the measured object, can be divided into absolute pressure transmitter, gauge pressure transmitter, and three kinds of differential pressure transmitter. According to different environmental conditions, the application condition, different elements such as the condition of installation, the transducer selection also have different requirements. Measuring pressure transmitter in the field of type selection pressure transmitter is low in the field of pressure measurement is widely applied watch pressure transmitter, high pressure and low pressure transmitter, absolute pressure transmitter single flange diaphragm sealed transmitter. According to the different methods of measuring installation, the transmitter can be divided into pipe direct type installation and guide pressure pipe pressure of two types. In the condition of small pressure, due to the direct measurement of pressure may lead to the emergence of unstable fluctuation so when tiny pressure measurement is not higher than 500 pa, differential pressure transmitter is more reasonable choice. Differential pressure and liquid level transmitter type selection in the field of so-called differential pressure measurement, refers to the reduction by differential pressure transmitter is used to measure the pressure difference are obtained. In the field of liquid level measurement, can through the differential measurement method for measuring results. Level measurement can be used in the field of transmitter height of differential pressure transmitter, pressure transmitter, flange installation type differential pressure transmitter and diaphragm sealed double flange differential pressure transmitter. Atmospheric pressure container level measurement, because of the container are connected to the atmosphere, appropriate USES pressure transmitter or single flange sealed diaphragm pressure transmitter to measure; For measuring the liquid level pressure, sealed container by container of negative pressure chamber in the gas phase may, or is the bottom USES nitrogen sealed container. Therefore, when measuring the hydraulic pressure, if choose flange transmitter installation, the negative pressure chamber needs to guide tube connected, and choose the diaphragm sealed transmitter, so is the negative pressure chamber must use far eastone flange connection. In view of the pool open, if the bottom mud, you can choose to use single flange seal diaphragm type pressure transducer to measure the liquid level. Flow measurement transducer type selection in the field of flow measurement generally choose the differential pressure transmitter and diaphragm sealed double flange differential pressure transmitter, differential pressure transmitter need to match the orifice, pig and venturi throttling device, such as the measured results and the differential pressure value. If it is to measure steam or gas medium, still need through the second table or DCS/PLC and upper system obtained the corresponding arithmetic flow value. Pressure transmitter, of course, a wide range of applications in the field of chemical industry in the pressure transmitter selection requires specific application environment of chemical properties, fully considering the comprehensive factors such as temperature, concentration, corrosive, again by measuring its economy, choose the most reasonable type of pressure transmitter transmitter, make it better meet the chemical production activities.