Analysis of installation techniques for magnetic flap level gauges used in high-level tanks

As one of the liquid level measuring instruments used in a large number of storage tank areas, the magnetic flap level gauge has its own advantages over other types of instruments. In many cases, the magnetic flap level gauge has become the preferred product for measuring liquid tank areas because of its simple structure, intuitive reading, good working stability, large measuring range, and no restrictions on the height of the storage tank. In addition, it is easy to install (side-mounted and top-mounted), which has been favored by many companies. The
 
magnetic flap level gauge is also called a magnetic level gauge, a magnetic column level gauge, and a magnetic float level gauge. Its working principle is that it uses the principle of magnetic coupling. The emergence of the magnetic flap level gauge is an important technological advancement compared to the previous glass tube level gauge. It makes up for the disadvantage that the glass tube level gauge is easy to break when working under high temperature and high pressure, and eliminates the impact of the broken measuring tube on production and personal injury to operators.
 
The installation methods of magnetic flap level gauges are divided into top-mounted and side-mounted. In industrial applications, there will definitely be various storage tanks on site, including horizontal tanks, underground tanks, and high-length tanks. Since the top-mounted installation method lacks support, the maximum recommended height should not exceed 5 meters. The measurement range of the side-mounted type can be selected at will, and there is generally no problem with a 10-meter tank. How to choose the side-mounted and top-mounted installation methods should be selected according to the specific requirements of the production site and the specific conditions of the tank. What installation tips should we pay attention to when choosing a magnetic flap level gauge? The following is a summary:
 



Issues that need to be paid attention to when installing a top-mounted magnetic plate level gauge:
The connection part between the top-mounted magnetic flap level gauge and the tank body is generally equipped with a DN80 or DN100 flange connection. If you feel that it is not firm enough, you can choose a larger specification connection flange according to the actual situation. In general, DN80 and DN100 are sufficient. When the top-mounted magnetic flap level gauge is installed at a height of 4 to 5 meters, it is recommended to add fixed cables on both sides to ensure that the instrument will not be damaged in a harsh measurement environment, such as large vibrations on site or sometimes collisions. Issues that need to be paid attention to when installing
 
the side-mounted magnetic flap level gauge
: the liquid level height of the magnetic flap level gauge and technical influence. For example: when measuring a 10-meter high liquid level tank, if you directly choose to make a 10-meter long magnetic flap level gauge, the first product will be clumsy; second, it will be inconvenient to transport, so it is recommended to reasonably adopt segmentation processing, so that there will be no technical errors (blind spot influence). The advantage of the magnetic flap level gauge is that it can be installed in parts. That is to say, divide 10 meters into two or three sections, and connect each section with flanges. This will not only facilitate transportation, but also greatly reduce costs. Users only need to use ordinary tools to dock the flanges between the three sections after receiving the goods. As for corrosion protection and leakage, we have also taken them into consideration. Specific problems are analyzed specifically. The magnetic flap level gauge can be equipped with electric remote transmission and output a standard signal of 4 to 20 mA to cooperate with recording instruments or industrial control computer networking.
 
10 meters and above is a bit long. Regardless of whether it is segmented or not, it is recommended to fix it with a clamp or other fixings around the flange of the middle part or each segment. When installing the magnetic flap level gauge, the magnetic flap level gauge must be kept in a vertical state. A ball valve should be installed between the magnetic flap level gauge and the container lead pipe to facilitate the maintenance and disassembly and cleaning of the level gauge. The side-mounted lined magnetic flap level gauge (PP) is suitable for the measurement of inorganic corrosive liquids such as hydrochloric acid and dilute sulfuric acid.
 
The side-mounted lined magnetic flap level gauge (PTFE) is suitable for level measurement in corrosive media and high working temperature. It uses the leading new technology of stainless steel lined polytetrafluoroethylene stretch flanging, which has a reliable structure and a long service life. It is the best choice for measuring the level of highly corrosive media such as hydrofluoric acid. Before use, the small ball below the zero position should be set to red with a calibration magnet, and the other balls should be set to white.