Стеклянный уровнемер LGG

Applications  
  
For steam generation and the process industry    
For observing interface layers or liquid colour    
  
  
Special Features  
  
Versions: available as welded, glass tube, reflection,   transparent and refraction indicators    
Materials: Forged steel, high-temperature C-steel, stainless   steels, Monel, Hastelloy    
Pressure: 0 ... 250 bar    
Temperature: -200 °C ... +400 °C    
  
Description  
With the transparent level indicator design, the liquid is encapsulated   between two transparent sight glasses. This allows the liquid to be looked   through and thus provides a clear indication of the liquid level. Transparent   level indicators are available in double-cover plate design for pressure range   up to PN100. They are the most suitable gauges for steam application above 35   bar, where mica shields have to be used to protect the sight glasses from   corrosion by the steam boiler water. They can also be utilised in a great number   of other applications, in particular for observing interface layers or liquid   colour. A backlight illuminator can be fitted to the rear to improve   visibility.  
  
The principle of the reflex level indicator is based on the reflection of   light. In the gas or steam phase, the light is reflected by the prismatic   grooves of the sight glass so that bright indication is achieved. In the liquid   phase, the light is absorbed, resulting in a dark indication of the liquid   level. Reflection level indicators are available in cover box design for   pressure range up to PN25 and in cover plate design for pressure range up to   PN100. They are the suitable and favourably priced indicators for steam   application up to 35 bar and are also suited for numerous applications in the   process industry.