Glass consultant for round sight glass plates made of quartz glass

Quartz glass is suitable for temperatures up to 1000°C and for short periods up to 1200°C. Depending on the geometry, quartz glass can be used for very high pressures. We will be happy to help you select the right glass for your application. Feel free to contact us for more information.

Subject to technical changes and calculation errors.

Technical properties


Water resistance according to DIN 12111 (ISO 719) Hydrolysis class 1

Acid resistance according to DIN 12116 Acid class 1

Alkali resistance according to DIN 52322 Alkali class 1


Bending tensile strength ≥ 67 N/mm² / 9718 psi

max. operating temperature 1200 °C / 2192°F (short-term)

Operating temperature 1000°C / 1832 °F


Dimensional tolerances on request