Custom Tempered Glass Gauge Glass for Liquid Level Indicator

1. Material & Manufacturing

• Primary Material: High-borate borosilicate glass (e.g., DIN 7080/7081 standard) or aluminosilicate glass, known for exceptional thermal and chemical resistance.

• Tempering Process: Undergoes controlled thermal toughening to significantly enhance mechanical strength and thermal shock resistance compared to annealed glass.

• Custom Fabrication: Precisely cut, ground, and polished to specified dimensions (length, diameter, thickness) and edge profiles (flat, pencil, bevelled) to fit various gauge housings.

• Optional Processing: Can be furnished with graduated markings, coloured bands, or surface treatments (e.g., frosting for meniscus clarity).

2. Key Physical & Functional Properties

• High Mechanical Strength: 3-5 times stronger than annealed glass, resistant to impact, bending, and internal pressure (typical pressure ratings from 25 to 100 bar).

• Superior Thermal Shock Resistance: Withstands sudden temperature differentials exceeding 150°C, critical for steam applications.

• Chemical Durability: Highly resistant to attack by water, most acids, alkalis, and organic solvents, ensuring long-term clarity and integrity.

• Optical Clarity: Provides a distortion-free, clear view of liquid level, colour, and potential contaminants.

3. Core Functions

• Safe Visual Monitoring: Forms a transparent, pressure-resistant barrier allowing direct visual inspection of liquid level, colour, and turbidity in tanks or vessels.

• Process Containment: Serves as a critical safety component, containing process fluids under pressure or vacuum within the gauge body.

• Durability & Safety: The tempering process ensures that if breakage occurs, it fragments into small, granular pieces rather than sharp shards, enhancing operator safety.

• Precision Interface: Its custom dimensions ensure a perfect seal and fit within the gauge assembly, preventing leaks and ensuring measurement accuracy.

4. Primary Applications

• Industrial Boilers & Steam Systems: For monitoring water level in steam boilers, steam drums, and feedwater tanks.

• Chemical & Petrochemical Plants: Level indication in reactors, storage tanks, and pipelines handling corrosive or high-purity chemicals.

• Power Generation: In turbines, condensers, and auxiliary systems for various liquid monitoring points.

• Pharmaceutical & Food Processing: For hygienic level indication in process vessels where cleanliness and chemical resistance are paramount.

• Marine & HVAC Systems: In expansion tanks, chillers, and other auxiliary equipment.