Level gauges, also termed as level indicators are widely used in industry for visual level indication of liquids in process equipment like storage tanks or process vessels or drums.
Broadly, they are classified as Glass Type Level Gauges and Float Type Level Gauges. Being a mechanical instrument, they do not require electric supply for their operation.
In several applications, provision of direct reading level gauges is mandatory as statutory requirement.
Various types of glass gauges and float gauges are available, selection of gauge for particular application is based on operating conditions (max. pressure & temperature), process liquid, mounting position and measurement accuracy.