Rectangular Sight Glass
For viewing the internals of pipelines, containers, pressure ves-
sels, reactors, silos etc. used principally as a 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.
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Applications
Pressure 16 bar
Vacuum
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.
Design Features
100°C when using sodalime 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
Technical Specifications
Base frame : carbon steel S235JR+N (RSt 37-2); stainless steel 1.4571, 316 Ti or alternative
Seal - KLINGERSil C-4400; Neoprene; PTFE or alternative
Sight glass plate : soda lime glass: thermally prestressed, DIN 8903, max 100°C - borosilicate glass: thermally prestressed, DIN 7081, max 243°C
Cover frame : steel S235JR+N (RSt 37-2); stainless steel 1.4571, 316 Ti or alternative.
Securing bolts : Carbon steel 8.8 or stainless steel A4
