How to choose a suitable glass rotor flowmeter based on the measured medium

Glass rotor flowmeter should be said to be a widely used type in industrial fields, and also the most widely used type, such as chemical industry, petroleum industry, pharmaceutical industry, light industry, food industry, environmental protection industry, etc. It is used to measure the flow rate of single-phase non pulsating fluid, where fluid refers to gas and liquid. The function and characteristics of glass rotor flowmeter are very obvious. It measures the instantaneous flow rate of the current fluid with small pressure loss and reliable performance during the measurement process. In addition, the structure of glass rotor flowmeter is simple and easy to install and use. Compared with flow meters, the price of glass rotor flowmeter is very low.
For such a flowmeter that has a significant and widely accepted effect, people not only need to know its function, but also need to know how to maximize its effect, how to choose the most suitable glass rotor flowmeter according to the measurement medium, and make the measurement effect better.
Firstly, when choosing a glass rotor flowmeter, there must be an approximate range of measurement values and the maximum flow rate of the medium to be measured. It does not mean that the larger the flow range that can be measured by the glass rotor flowmeter, the better. It is also necessary to consider the pressure range of the fluid, as it is a glass tube product and can withstand pressure to a certain extent. The flow range and pressure range are essential considerations when choosing.
Of course, there is also the issue of measuring the medium. The density of any medium is different, and the characteristics of any medium are also different. The flowmeter Changzhou Liangbang Instrument calibrates the scale of the glass tube on the glass rotor flowmeter according to the specific measurement medium to ensure measurement accuracy. The specific measurement medium also needs to be provided to the flowmeter manufacturer when selecting. There are many substances that are corrosive, such as strong acids, strong bases, oxidants, organic solvents, and so on. For these corrosive fluids, corresponding technologies need to be used to achieve anti-corrosion effects and ensure the normal use of measuring instruments.
1. How to choose a corrosion-resistant glass rotor flowmeter correctly:
The glass rotor flowmeter is a simple to use, easy to read, and widely used instantaneous flow measurement instrument. The usage of environmental protection equipment and instruments is quite extensive. Therefore, it is extremely important to choose and use this type of instrument glass rotor flowmeter well.
2. Types and selection of glass to flow meters
Glass rotor flow meters can be divided into eight series based on their applications and adaptability: ordinary type, reinforced pipe type, small flow and small shape type, corrosion-resistant type, laboratory type, insulation type, alarm type, and high-pressure resistant type. According to the national instrument series spectrum, regardless of which series, it mostly includes 12 calibers from 1 millimeter to 100 millimeters, and the measurable flow range is: liquid (water) 0.1 milliliter/minute to 40 cubic meters/hour, gas (air) 1 milliliter/minute to 1000 cubic meters/hour. The glass rotor flowmeter used for environmental protection instruments generally has a diameter of no more than 10 millimeters, and the measured flow rate belongs to the small flow range.
3. Calibration correction of glass rotor flowmeter:
The scale of the glass rotor flowmeter is calibrated by the manufacturer using water and dry air, which are close to ideal fluids, as the medium under local conditions. But in the use of flow meters, there are two situations where their scale values cannot be directly used: one is when the measuring medium is not water and air, and the other is when the measuring medium is water and air, but its state (temperature, pressure) is different from the scale state. In this way, when using a flow meter, there is a problem of needing to correct the scale values in order to obtain accurate measurement results. Therefore, solving the calibration correction of glass rotor flow meters is the key to using this type of instrument effectively.