Transparent Level Gauge Glass

Factory-direct transparent level gauge glass — flat borosilicate glass plates used in transparent-type liquid level gauges for direct visual monitoring of fluid levels in boilers, pressure vessels, storage tanks, and process equipment. High optical clarity, pressure-rated, and available in standard and custom dimensions.

Key Properties

  • Material: Borosilicate glass (3.3) — superior thermal shock and chemical resistance
  • Max. operating temperature: Up to 300°C
  • Max. operating pressure: Up to 40 bar (depending on thickness and size)
  • Optical clarity: High light transmission for clear fluid level reading
  • Surface finish: Polished flat surfaces for leak-free gasket sealing
  • Custom sizes: Length, width, and thickness available to specification

Standard Dimensions

Parameter Standard Range
Length 100mm – 1000mm (custom available)
Width 20mm – 60mm
Thickness 7mm – 25mm

Typical Applications

  • Industrial boilers and steam generators — water level monitoring
  • Chemical and petrochemical process vessels — fluid level inspection
  • Pharmaceutical reactors and autoclaves — sterile process monitoring
  • Food and beverage tanks — hygienic liquid level observation
  • Power plants and heat exchangers — coolant level monitoring
  • Water treatment systems — tank level gauging

Compatible Accessories

Pair with PTFE or fluororubber gaskets for leak-free installation. For reflex-type gauges, see our Reflex Level Gauge Glass collection.

Need a non-standard size, higher pressure rating, or bulk order? Contact us for a quote within 24 hours →