Tempered Borosilicate Sight Glass from YOUJIA OPTICAL
Tempered borosilicate sight glass is a high-performance viewing window designed to withstand extreme temperatures, pressure, and mechanical stress.
Material – Borosilicate Glass
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Made from borosilicate glass , known for:
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Low thermal expansion (resists thermal shock).
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High chemical resistance (withstands acids, alkalis, and solvents).
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Optical clarity (maintains transparency under harsh conditions).
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Thickness(mm)
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0.1-30mm
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Size tolerance
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+/-0.02mm
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Edge Finish
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Ground and beveled
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Surface Quality
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60-40 scratch-dig
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Surface Flatness
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λ/4 @ 633 nm
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Parallelism
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≤3 arc min (≤0.9 mrad)
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Transmistance
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>90%
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Applications
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High-temperature/pressure environments: Boilers, reactors, autoclaves.
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Chemical processing: Tanks, pipelines with corrosive media.
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Food/pharmaceutical: Sanitary sight glasses for sterile processes.
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Industrial machinery: Hydraulic systems, compressors.
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