A pressure-resistant and heat-resistant tempered glass for pressure vessel sight glass. We have a lineup of  aluminosilicate glass and borosilicate glass that conform to JIS B8286 (mean coefficient of linear expansion test, bending strength test, thermal shock test).
*JIS B8286 is the standard for sight glass for pressure vessels. (JIS: Japanese Industrial Standards) Please check each country’s standards individually.

We will respond to requests for shapes (circular, square, rectangular) and sizes, etc.
Please feel free to contact us.

 

Basic specification

Glass type	Aluminosilicate glass	Borosilicate glass
Normal operating temperature	325℃	260℃
Mean coefficient of linear expansion	48e-7/℃	36e-7/℃
Bending strength	≧200MPa	≧130MPa
Maximum size (circular)	φ150mm	φ300mm