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METAGLAS® Sight Glass Windows

METAGLAS® Sight Glass Windows

A borosilicate sight glass fused to a metal ring. A unique combination of glass and metal places the glass in compression, creating an amazingly strong and reliable sight glass. METAGLAS® is the No. 1 selling sight glass, installed in more locations around the world. Clamp-style, bolt-on, weld-on, and threaded models available

Sight glass luminaires

in hazardous areas
other industrial places.

Sight glass fittings

Flow sight glasses with flanges according to
DIN and ANSI for visual control in vessels and pipelines


Metal fused sight glasses- Metaglas®

Customized sight glass parts made of
BOROFLOAT® 33 and quartz glass


Maxos®, DIN7080, DIN7081

MAXOS® safety sight glasses are used wherever visual inspection of processes in vessels under pressure, thermal and chemical stress must be ensured.

Advantage Metaglas

Metaglas is really one thing: safe. Conventional sight glasses cannot withstand a crack. Metaglas only cracks on the surface so no failure occurs in the event of damage.
Unpopular cleaning and deposit problems can be solved because Metaglas is free of dead spaces aswell as it is flush with the wall.
Metaglas is also very inexpensive. Aside from that it can be installed without any problems, has a long service life and offers the most effcient operational reliability.

What is special about Metaglas Sight Glass?

Metal fused sight glasses consist of a viewing window that is sorrounded by a metal ring. The different coefficients of thermal expansion of glass and metal create a homogeneous state of compressive stress in the glass body. If the metal heats up, the glass melts and bonds with the steel. When the steel cools down, it contracts and thus shrinks the glass. The sight glass is therefore to be understood as a composite.

Any Questions?

We are happy to take the time to create an individual solution for you and to advise you extensively. Leave your contact details and we will contact you!