Overcoming The Challenge Of Installing Top-Mounted Magnetic Flap Level Gauges With No Side Wall Openings
The display principle (magnetic coupling flap) of the top-mounted magnetic flap level gauge is exactly the same as that of the side-mounted one. The biggest difference lies in the installation position and the driving method of the float.
Main features and advantages (compared with side-mounted type)
- Solves installation difficulties: underground storage tanks (such as buried oil tanks); containers where side openings are not feasible (such as due to structural limitations or the need for reinforcement when opening holes in pressure vessels); situations where there is insufficient space or obstacles on the side; spherical tanks and dome tanks where top openings are more convenient.
- No need to open holes in the pressure-bearing side wall of the container: for high-pressure vessels, this reduces the strength weakening and reinforcement costs caused by opening holes, and is sometimes safer and more economical.
- Facilitates centralized observation and maintenance: all components (indicators, remote transmission, switches) are concentrated on the top platform, making observation, wiring, and maintenance easier.
- Retains all the intuitive advantages of magnetic flap level gauges: clear red and white display, no power required, safe and reliable.
Typical application scenarios:
- Underground storage tanks: Liquid level measurement of underground gasoline and diesel storage tanks at gas stations (the most classic application).
- Spherical tanks: Spherical storage tanks for liquefied petroleum gas (LPG), liquid ammonia, etc.
- High-pressure chemical containers: Side containers such as reaction vessels where it is not advisable to open multiple holes.
- Some towers: When it is inconvenient to install and maintain on the side platform.
Summary: Top-mounted vs Side-mounted Magnetic Float Level Gauges
| Characteristics |
Top-mounted |
Side-mounted |
| Installation Position |
Top of the container |
Side wall of the container |
| Core Structure |
Guide tube + Linkage + Float |
Measure tube + Float |
| Major Advantage |
Solves the problem of inability to open holes on the side wall |
Simpler structure, more direct and intuitive, higher reliability |
| Major Disadvantage |
Linkage is prone to jamming and has strict requirements for verticality |
Requires opening a hole on the side wall |
| Applicable Medium |
Clean, low viscosity, and non-crystalline |
Relatively more tolerant, anti-jamming type available |
| Maintainability |
Components are concentrated at the top, but the linkage needs to be disassembled as a whole for maintenance |
Relatively more convenient |
The top-mounted magnetic flap level gauge is a "specialized solution for specific installation challenges". When choosing it, one must first assess the cleanliness and fluidity of the medium, and be prepared for meticulous installation and strict maintenance to ensure its reliable operation.