Tempered borosilicate round sight glass

It’s made from Borosilicate with toughened process. It is used in lever gauge for water position. It's also named circular sight glass, toughened borosilicate glass, round gauge glass.

Thickness: 10mm-25mm

Diameter: 50mm - 250mm

Pressure: 6 - 25 bar

Temperature: 260 degree C

Packing: Carton or wooden case.