Magnetic Level Indicators

SOR Magnetic Level Indicators offer clear and reliable visual indication of most any process liquid level. Designed to work in a wide variety of process conditions, SOR Magnetic Level Indicators are perfect for industries such as: Oil and Gas, Refining, Power Generation, Petrochemical and more. SOR recognizes that there is no industry convention with respect to terminology and definitions pertinent to Magnetic Level Indicators. This glossary applies to SOR Magnetic Level Indicators. Learn more about the 1100 Series Magnetic Level Indicator and the vista™ indicator.

Bridle – A bridle is a secondary chamber attached to the main chamber of the Magnetic Level Indicator (MLI). This secondary chamber can be used to accommodate other technologies such as Guided Wave Radar (GWR) and switches.

Center to Center – The center to center dimension is the distance between the middle of the top process connection and the middle of the bottom process connection.

Chamber – The chamber consists of piping and connections that are welded together to be connected to a vessel. Process liquid enters the MLI chamber through the process connections and rises at the same rate and level as the primary chamber.

Electrical Heat Trace – Electrical heating elements are ran along the lining of the chamber to ensure the process material stays at the same temperature due to colder outside temperatures.

Flashing and Boiling Protection – A spring is placed at the top of the chamber to lower the impact of the float in the case of pressure build up from flashing and boiling. Also, guide rods are placed inside the chamber to allow the flashing gasses to pass by the float.

Float – The float rides on top of the liquid in the chamber at the same rate as the fluid. Magnets inside of the float interact with the indicator on the outside of the chamber.

Indicator – The indicator consists of magnetically coupled flags. As the float inside of the chamber rises, the magnet turns the flags to indicate the liquid level.

Steam Heat Trace – Steam heating tubes are ran along the lining of the chamber to ensure the process material stays at the same temperature due to colder outside temperatures.

Vent and Drain Connections – A vent connection is placed at the top of the chamber to vent off pressure in the chamber. A drain connection is placed at the bottom of the chamber to drain off liquid left in the chamber below the bottom process connection.

Viewing Angle – The viewing angle is the angle at which the level indication is still visible.


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