High-purity quartz glass tube for UV-C germicidal lamps, enabling optimal 254nm UV transmission for microbial disinfection.
A specialized cylindrical component made from fused quartz (silicon dioxide) with exceptional UV transparency, specifically engineered for UV-C germicidal applications. It serves as both the protective envelope for mercury vapor discharge and the optical medium that transmits 254nm ultraviolet radiation while containing the plasma arc. The tube's material properties prevent UV absorption and maintain structural integrity under thermal cycling from 40°C to 800°C operating temperatures.
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Quartz glass transmits 254nm UV-C radiation with >90% efficiency, while regular soda-lime glass absorbs virtually all UV-C wavelengths. The high purity fused quartz also withstands the thermal cycling and mercury vapor environment.
Periodic cleaning with isopropyl alcohol to remove dust and organic films that can reduce UV transmission. Avoid mechanical abrasion and chemical cleaners that might etch the surface. Regular inspection for microcracks or devitrification.
Properly manufactured tubes can last 8-12,000 operating hours before UV transmission drops below 80% of initial value. Lifespan depends on operating temperature cycles, ozone exposure, and mechanical stress.
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