For welding into or onto vessel wall
Complete with fully gasketed tongue-shaped glass plate and bolting
Materials: stainless, carbon steels and specials
Nominal pressure: PN 2,5 / PN 6 / PN 10 and PN 25
Lumiglas Oblong Oval Sight Glass Fitting is suitable for welding into or onto vessel walls, this sight glass fitting comes complete with an oblong oval glass plate sealed by gaskets inserted on either side of it and bolted firmly in place.
Application:
Ideal for viewing the insides of pipes, vessels, containers, reactors, silos, etc., and used primarily as a liquid level indicator for monitoring e. g. filling levels.
Operating conditions:
– Pressure 2.5/6/10/25 bar
– Vacuum
– Prior to using the fitting, the cut-out reinforcement together with the relevant material of the vessel should be checked in accordance with AD-Merkblatt.
Operating temperature:
100°C when using soda-lime glass to DIN 8903 (on request only)
243°C when using borosilicate glass to DIN 7081
These temperatures refer to unprotected glass, i. e. without a protective layer of mica).
Certification/Approval:
Testing and certification can be provided to DIN EN 10204 3.1/3.2
as required by the customer (at extra charge).
Components and alternative materials:
(as per drawing within data sheet below):
Item Component Material options
1. Base frame Stainless steel 1.4404 or other grades
on request (Steel S235JR+N (RST 37-2))
2. Gaskets KLINGERSil C-4400; Neoprene;
PTFE or others
3. Sight glass plate – Soda-lime glass: thermally
prestressed to DIN 8903,
max. operating temperature: 100°C
– Borosilicate glass: thermally
prestressed to DIN 7081,
max. operating temperature: 243°C
4 Cover frame Stainless steel 1.4404 or other grades
on request (Steel S235JR+N (RST 37-2))
5 Fastening bolts Steel 8.8 or stainless steel A4
Externally mounted liquid level indicator:
Lumiglas oblong oval sight glass fittings are also available with a closed base frame for use as an external liquid level indicator. In this case, the indicator is fed via pipes that run through holes in the base frame plate. The base frame is provided with the relevant drilled or tapped holes for this purpose.
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