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A sight glass, also known as a sight window or view port, is process monitoring equipment that allows direct viewing of liquids, levels, and internal conditions in industrial equipment. It is used in high-pressure and high-temperature applications across food, petrochemical, pharmaceutical, and energy for monitoring liquid levels and operational safety.

Steel parts are commonly SS304, SS316L, or carbon steel with an anti-corrosive coating. Glass options include quartz, tempered borosilicate 3.3 (DIN 7080), tempered soda lime, and polycarbonate for different environments.

Yes. We manufacture to exact dimensions or specifications for special applications. Standard sizes ship faster; custom builds are delivered with the same quality standards as our catalog lines.

Standard replacements are typically in stock. Custom parts usually take 1 to 2 weeks, keeping turnaround short even for non-standard sizes.