The S1 is a single-window observation sight glass with threaded connections, available in bronze and brass. It features a compact design to save installation space and offers customizable BSP or NPT threads. The unit is equipped with explosion-proof calcified glass lenses resistant to high temperatures and flexible graphite gaskets for high sealing performance and erosion resistance. Regular inspection of the glass is recommended, especially in corrosive environments.

Highlights: Explosion-proof Glass, BSP/NPT Thread, Bronze/Brass Body