Tubular Sight Glass Type 622 – PN 16 – DIN EN ISO 228-1

The glass is encapsulated between two high-quality flanges, in stainless steel or carbon steel, enabling comprehensive visual monitoring of the system.

• The standard version features flanges in stainless steel 1.4571 (316Ti), with excellent corrosion resistance and durability in industrial applications.
• For less demanding environments, there is an option with flanges in P265GH.
• Upon request, it is possible to use special materials such as Hastelloy®, duplex steels or other high-performance alloys.

The glass tube is made of industrially tested borosilicate 3.3, according to DIN ISO 3585, offering high thermal and chemical resistance and excellent optical properties.

The sealing of the glass cylinder is achieved with individually selectable flat gaskets, from classic fibre seals to special materials such as PTFE (Teflon®), NBR, novaphit® MST-XP or KlingerSil® C4400, ensuring optimal adaptation to the medium, temperature and pressure.

Thanks to the precise coordination between flange, gasket and glass, the assembly is virtually dead-space-free, making it suitable for processes with high hygienic requirements.

For areas with increased mechanical risk, such as installation under walkways, we recommend the use of impact protection covers, which protect the glass from falling objects and minimise the risk of unexpected failures or damage.

TECHNICAL DATA – Tubular Sight Glass Type 622