Key Features and Advantages

Superior Temperature Resistance: Withstands continuous operating temperatures up to 375°C (707°F), significantly exceeding borosilicate limits.

Exceptional Pressure Capability: Rated for pressures ranging from 320 to 400 Bar (dimension-dependent), ensuring safe operation in high-pressure systems up to 22752 kPa (3300 PSIG).

High Mechanical Strength: Boasts a flexural strength of 240–450 MPa, offering superior resistance to pressure surges, thermal cycling, and mechanical shock compared to borosilicate glass.

Outstanding Chemical Resistance: Exhibits Class A1–A2 alkali resistance (ISO 695) and Class A1 acid resistance (DIN 12116), making it highly durable in corrosive media, including high-concentration alkalis and steam condensates.

Thermal Shock Resilience: Designed to withstand thermal shock differentials of ≥280°C, ensuring reliability during rapid temperature changes.

Technical Specifications

Dimensions

Our aluminosilicate gauge glass is available in a comprehensive range of dimensions to fit various industrial requirements, all manufactured to DIN 7081 standards.

Length: Common ranges from 95mm to 420mm (e.g., 95, 115, 140, 165, 190, 220, 250, 280, 320, 340, 370, 400, 420).

Width: Standard widths include 24mm, 30mm, and 34mm.

Thickness: Typically 17mm, 19mm, 21mm, 24mm.

Edge Finish: Available with grind or polish finishes.

Applications

Aluminosilicate level gauge glass is indispensable in industries where extreme conditions preclude the use of standard glass types. Its robust properties make it suitable for a wide array of critical applications, including:

Supercritical Steam Boilers & Power Generation: Essential for monitoring water levels in high-pressure, high-temperature boiler systems.

Petrochemical Reactors & Hydrocracking Units: Withstands the aggressive media and extreme pressures found in petroleum refining processes.

Offshore & Subsea Level Indicators: Provides reliable performance and burst pressure resistance in corrosive marine environments.

High-Pressure Separators: Ensures accurate level readings in systems operating under significant pressure.

Alkali Process Equipment: Resists degradation from high-concentration alkalis, crucial for chemical manufacturing.

Pharmaceutical & Chemical Industries: Ideal for processes requiring high purity and resistance to various chemical agents.

Frequently Asked Questions (FAQ)

Q: Does your gauge glass comply with DIN 7081?

A: Yes. Our gauge glass is manufactured in full accordance with the DIN 7081 standard. The precise dimensions ensure direct replacement in existing level gauge assemblies without any modification.

Q: What types of gauge glass do you offer?

A: We supply both Transparent Gauge Glass and Reflex Gauge Glass.

Transparent Gauge Glass is ideal when operators need to observe the liquid level, color, or clarity directly.

Reflex Gauge Glass features a prismatic surface that provides high-contrast liquid level indication, making it easier to read in steam boilers and industrial process equipment.

Q: Can you manufacture custom-sized gauge glass?

A: Yes. In addition to standard DIN 7081 sizes, we manufacture custom gauge glass according to your drawings or technical specifications, including special lengths, thicknesses, and edge finishes.