Level Gauge Sight glass level gauges
for special applications
KSR KUEBLER provides a level gauge for level measurement that can be used for most applications in steam generation, but also in the process industry. The two main types of sight glass indicator are the reflex and the transparent versions.
KSR reflex level gauge
The principle of the reflex glass is the reflection of external light. In the gas or vapour phase the light is reflected by prismatic grooves in the sight glass, achieving a bright display. In the liquid phase the light is absorbed, thus providing a dark display of the level. A KSR reflex level gauge is available in housing versions for pressure ranges up to PN 25 and in cover versions for pressure ranges up to PN 100. They are the most suitable, best value-for-money indicators for steam use up to 35 bar, but can also be used in countless applications in the process industry.
KSR transparent glass gauges
In this type of level gauge the liquid is enclosed between two transparent glasses. This allows a view through the liquid and thus provides a clear indication of the level. They are available in a double cover version for the pressure range up to PN 100. They are the most suitable indicators for steam use up to 35 bar, where mica sheets have to be inserted in order to protect the sight glasses from corrosion by the steam boiler water. They can also however be used in many applications, particularly for observing the interface level or the colour of the liquid. They can also be equipped with a lighting device at the back to improve the visibility.
Other KSR level indicators
In addition it to the reflex and transparent versions, KSR offers the following models of glass gauges:
glass tube indicators, which are normally used in unpressurised, non-hazardous installations, offer an inexpensive alternative;
weld-on glass gauges designed to become a fixed component of the container;
bull's-eye glass gauges, available for a pressure rating of PN 400, are used in the high pressure plant in the process industry;
and last but not least magnetic level gauges, where the whole range is shown in a separate catalogue (1015).
