Level Gauge Glass

Factory-direct level gauge glass for boilers, pressure vessels, tanks, and industrial process systems. Available in transparent, reflex, and double-color types — manufactured to DIN, JIS, GB, and NB standards. Custom lengths and OEM orders welcome.

Types Available

  • Transparent level gauge glass — flat borosilicate glass panels for direct visual inspection of liquid levels. Suitable for colored or opaque fluids where both sides of the gauge are visible.
  • Reflex level gauge glass — prismatic surface uses light refraction to display liquid as dark and vapor as bright. No illuminator required. Ideal for steam and water systems.
  • Double-color (bi-color) level gauge glass — liquid appears red, vapor appears green under transmitted light. Highest visibility for high-pressure boiler and power plant applications.

Key Properties

  • Material: High-quality borosilicate glass
  • Temperature resistance: Up to 400°C
  • Pressure rating: Up to 64 bar (grade dependent)
  • Chemical resistance: Resistant to steam, water, oils, and most process fluids
  • Pressure tested before shipment on all custom orders

Manufacturing Standards

  • DIN 7080 / DIN 7081
  • JIS B8211 / JIS B8286
  • GB/T 23259
  • NB/T 47017
  • HG 21619

Typical Applications

  • Steam boilers and steam drums
  • Condensate and feedwater systems
  • Chemical and petrochemical process vessels
  • Power generation and energy plants
  • Pharmaceutical and food processing tanks
  • Water treatment facilities

Need a custom length or non-standard specification? Contact us for a quote within 24 hours →