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Borosilicate glass according to DIN 7080.
For compressive stress with temperatures borosilicate circular sight glass up to max. 280 °C, Where a greater degree of chemical resistance or higher operating temperatures are required, a borosilicate glass should be specified. In a toughened form, temperatures up to 315 °C are possible whilst annealed glass may be used up 400 °C continuously with a short term maximum of 500 °C.
In addition to standard DIN sizes, glasses are available in a wide range of diameters up to 60 mm thickness (see annular edge sight glass).
Soda Lime glass according to DIN 8902.
For compressive stress with temperatures borosilicate circular sight glass up to max. 150 °C. This is the most commonly used material due to its low cost. It can be easily toughened to effectively increase the mechanical strength of annealed glass by up to five times. We have plant and equipment, including our water-jet cutting machine and CNC machining center, to produce diameters between 3 mm and 1500 mm, and thicknesses up to 25 m.
Quartz glass according to customer's requirements, made from JGS1, JGS2, JGS3, on production.
