The safety benefits of magnetic Level Gauges over the glass sight gauges
- The most obvious advantage of the magnetic level gauge indicator is the reduced possibility of breakage even under extreme pressures or temperatures. The magnetic level gauge indicators are designed to accommodate severe environmental conditions up to 210 bars at 370oC.
- The pressure boundary of the MLI is made of robust metal making it strong and safe as a vessel. The indicators, transmitters and switches are all mounted externally so that it is not affected by toxicity, corrosiveness or other characteristics of the fluid process.
- Another safety benefit is chemical compatibility with the fluid which is restricted to 3 components: metallic chamber, gasket and float. The glass sight gauges have compatibility issues with wetted materials like glass, metal and sealants.
- Level gauge are virtually maintenance-free once it is installed because the indicator never touches the process fluid. Sight glasses have to be periodically cleaned and checked for leaks. Very often scales and build-up on the glass from process fluids makes the sight glass unreadable.
- In the magnetic Level Gauges, visibility is possible even from a far distance (100 feet) while the sight gauge level gauge indicators are only intended to be viewed from a distance of around 10 feet.
- Installations of the level gauge are a lot easier and simpler. In many cases the sight glass gauges are only available in 12-inch length due to weakness of glass. If the required visible indication length is increased, additional sight gauges are required which increases the possibility of leak joints.
This article comes from valariearthur edit released