Sight Glass Disc DIN 7080 is also named round sight glass and circular gauge glass, which is made from special formular borosilicate 4.2. It is used to observe and illuminate the interior of closed pressure vessels like tanks, silos and other similar installations.
Working pressure: Depends on thickness and Diameter
Max. Working temperature: 300 °C (Borosilicate)
Treatment: Tempered & Polished