For welding into or onto vessel wall
Complete with fully gasketed tongue-shaped glass plate and bolting
Sizes: 250 to 1000 mm long, 70 mm wide, viewing slot 18 mm
For viewing the internals of pipelines, containers, pressure vessels, reactors, silos etc. used principally as a liquid level indicator
Materials: stainless, carbon steels and specials
Also available with closed base frame for use as external liquid level indicator
The base flange of the sight glass unit is welded into or onto the vessel wall; the glass plate with gasket either side is firmly held in place by bolted on cover flange.
Welded into a vessel or a pipeline, these rugged sight glass fittings provide either flow or level indication. They are available in carbon steel, stainless steel and special alloys.
Pressure 16 bar
NB: Before putting the fitting into operation, the strength of the cutout reinforcement in combination with the vessel wall should be checked in accordance with TÜV leaflet.
100°C when using soda-lime glass, DIN 8903
243°C when using borosilicate glass, DIN 7081
These temperatures refer to unprotected glass (i. e. without mica protective sheet).
If required by customer, and against additional charge, testing and certification can be provided to DIN EN 10204 3.1/3.2
Lumiglas sight glass fitting rectangular are also available with closed base frame (see sketch in data sheet below) for use as external liquid level indicator. In that case the unit is fed via pipes through holes in the base frame plate. The unit comes with such holes suitable drilled or tapped.