Continental Trade Sp. z o. o.


Type 338 - PN16



The ACI tank sight glass type 338 for welding in or on are suitable for visual inspection in the tank for pressures up to 16 bar. The sight glass enables reliable monitoring of the filling level at a visible width of 50 mm. The tank sight glass type 338 is a robust oval tank sight glass. The "Transparent" design allows the use of protective panes such as mica, KEL-F, PTFE or FEP to protect the glass surface from chemical and thermal influences. 

In addition to the borosilicate glass panes similar to DIN 7081 industrial standard, we also use high-quality materials such as quartz or sapphire glass for particularly high temperatures or heavy loads, if required by your application.

As is the case with most of our sightglasses, sealing is achieved by means of high-quality flat gaskets such as KlingerSIL C4400, Frenzelit novaphit MST or chemically highly resistant PTFE in untreated or expanded form. We can also install durable soft seals such as silicone, EPDM or NBR directly in your valve at the factory.

As a frame material you can choose from our entire catalogue of high-quality steel and stainless steel grades such as P265GH, 1.4571, 1.4541. We also offer the internationally very popular stainless steel 1.4404, as well as high-performance alloys such as Hastelloy or Duplex steel.

If it is necessary to replace the glass or seal, our competent team of technical and sales consultants will help to provide a solution as quickly as possible.

Read on for technical information and detailed views of our container sight glass Type 338.



Base flange:
1.4571, 1.4404, 1.4435, 1.4462, 1.4539, 1.4541, 2.4602, 2.4610, P265GH, Alloy , Super Duplex

Cover flange:
1.4571, 1.4404, 1.4435, 1.4462, 1.4539, 1.4541, 2.4602, 2.4610, P265GH, Alloy , Super Duplex

DIN 912, A4-70 or special materials

Glass plates:
Borosilicate glass similar to DIN 7081

transparent glass

oval longitudinal sight glass fitting for welding in or on

Nominal size:
from 270 to 620 mm

Nominal pressure:
for operating pressures up to 16 bar
(Vacuum version available on request)

depending on glass and gasket selection.

Gasket selection:
PTFE (200°C)
FKM (200°C)
NBR (100°C)
C4400 (150°C)
Silicone (200°C)
EPDM (140°C)
Graphite (280°C)

Optional versions are possible

Download data sheet:

While every attempt has been made to verify the source of the information, no responsibility is accepted for accuracy of data.

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