Armored Reflex Glass Boiler Water Level Gauge

About this part

Heavy-duty armored reflex glass water level gauge designed for direct visual observation of steam boiler liquid levels. Uses prismatic grooved borosilicate glass that reflects light so steam appears silvery-white and liquid water appears distinctly dark/black, eliminating reading ambiguity. Supplied complete with upper and lower flanged isolation cocks, internal auto-shutoff safety check balls, and bottom blowdown drain valve.

Key features

• Prismatic grooved toughened borosilicate reflex glass for distinct liquid/steam contrast
• Heavy-duty forged carbon steel armor housing with high bolt-torque clamping
• Integrated automatic safety ball check valves that seal instantly if glass fractures
• Upper and lower quick-closing flanged isolation cocks with hand levers
• Bottom blowdown drain valve for routine gauge glass flushing and cleaning

Typical applications and wear

Industrial steam boiler shells, steam drums, and deaerator tanks. Wear involves glass erosion from alkaline boiler water and thermal shock etching.

Compliance

A direct visual level indicator commonly used on steam boilers; installation and redundancy requirements depend on the applicable boiler code.