Transparent Level Gauge

Transparent level indicators are highly useful in chemical industries and petrochemical fertilizers. As the fluid is stored in high pressure and high temperature, the transparent level gauge is very useful to find the fluid level.

Working principle of the transparent level gauge

Apart from glass tube level gauges, transparent level gauges are always fitted with two plate transparent glasses between which the fluid is contained. The fluid level is indicated as the result of the different transparency of the two media and in some cases (for water steam), by conveying upwards on to the surface of separation (between liquid and gaseous substances) a source of light located at the back of the gauge, the rays of which are totally reflected down to the observer.

Applications

Transparent level gauges are suitable for almost all installations.

In fact they permit:

the use of mica shields or Polytrifluorochloroethylene shields to protect the glass from the corrosive action of the process fluid
the observation of interface
the observation of the liquid colour