Metaglas from L. J. Star is a fused sight glass said to be proven in thousands of installations around the world. Unlike some other sight glasses, the company says, it uses borosilicate glass, rather than less durable similar glass material that doesn’t carry the same level of safety and performance certifications for extreme temperatures and pressures.
L.J. Star has introduced MetaClamp sanitary sight windows as a resource for sight ports and light ports in processing applications or inline visual flow indicators. The device is said to be the strongest, safest, most reliable sight glass on the market today.