336 Oval tank Sight glass For welding PN6

Oval Sight glass / Oblong Sight Glass
Rounded Ends
For welding
Pressure: Up to 6 bar

For visual observation of fluid levels in vessels, boilers and silos

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Flange: S235JRG2, 1.4571, 1.4404
Glass: PMMA protrusion glass, Soda Lime glass DIN 8903, Borosilicate glass DIN 7081
Seal: C4400, Graphit, PTFE, NBR, Viton

Other materials on request

Installation guideline:
After welding the base flange onto/into the pressure vessel, the sealing surface must be checked for deformations! Reworking may be required!

The operating pressure does not relate to the base flange! The base flange must be audited according to AD 2000 guidelines together with the pressure vessel!

ACI Type 336
250 mm
Flange 1.4571
Borosilicate glass transparent          11-336-250-2-1-1-000
Standard construction

For corrosive media or steam, we recommend adding a mica disk to protect the glass.

Old Type:


Nominal diameter 270x120, 340x120, 410x120, 480x120, 550x120, 620x120, 690x120, 760x120
Pressure rating PN6
Sight glass body 1.4571/1.4571, 1.4571/S235JRG2, S235JRG2
Process Connection Weld-on, Weld-in
Shape Oval Sight glass
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