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.
The L.J. Star product is the only sight glass in available globally that meets DIN 7079 and DIN 7080 quality standards, and it is approved for USP Type I use.
Even at temperatures up to 280°C or in overpressure situations, sudden total failure — that involves explosive shattering of the glass – has never been reported, the company adds.
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