Continental Trade Sp. z o. o.


Rectangular level indicator with frontally welded ends



The ACI filling level indicator Type 410 has a closed casing and welded supports at the ends with which the fitting can be installed into your existing system as required.

Type 410 is fully assembled before delivery and is subject to a pressure test, so that the filling level indicator is immediately ready to use after proper installation.

As a viewing window, we use high-quality, chemical-resistant borosilicate glass according to DIN 7081. These glass panels are available as “transparent” and “reflex” types. The transparent type has a smooth surface and can be protected if required by a mica layer against aggressive media or high temperatures.

The “reflex” type has internal indents that make the meniscus of the fluid phase significantly more visible in the case of clear and colourless media, due to the different refraction of light, than most transparent glass panels. We recommend this version especially for operation with water or alcohol.

For sealing, we use as standard high-quality flat seal materials such as KlingerSIL C4400, Frenzelit novaphit or Garlock Gylon. Soft seals made of silicon, EPDM or NBR are also available from us directly.

Contact our competent sales team and we will be sure to find the perfect solution for your special application.



Base and top frame: 
1.4571; 1.4404, 1.4462, RSt 37-2 / H II


depending on the application

Reflections -or- Transparent glass DIN7081 

longitudinal rectangular sightglass fitting with weld ends Ø 20 x 2,6 for pressures up to max. 35 bar

Nominal size:
170- 930 mm (other size on request)

Nominal pressure:
PN16 or PN40

100 °C or 243 °C
depending on the glass and seal selection.


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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Administrator, ie the entity deciding on which personal data will be processed and for what purpose, and in what way, is Continental Trade Sp. z o.o. (hereinafter "Continental Trade" or "We") with its registered office and address in Warsaw at Krasnobrodzka Street 5.

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Continental Trade, in principle, does not share your personal data with third parties, except for situations in which Continental Trade has a legal basis, including at the request of authorized entities, or when it is necessary to perform services offered by Continental Trade, e.g. entrepreneurs providing hosting of our services.

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More information on the protection of your personal data can be found in the Cookie Policy and Security Policy documents published on our website