Tempered Borosilicate Level Gauge Sight Glass for High-Temp Industrial Tanks

Material Composition

• Primary Material: Borosilicate glass (commonly Borosilicate 3.3 per ISO 3585 standards).

• Tempering Process: Chemically or thermally strengthened to enhance durability.

• Key Additives: Silicon dioxide (80-85%), boron trioxide (10-13%), and trace alkaline earth metals.

Key Properties

1. Thermal Resistance: Withstands temperatures up to 450°C (842°F) and thermal shocks from ΔT 160–200°C.

2. Mechanical Strength: Tempering increases impact resistance (4–5x stronger than annealed glass).

3. Chemical Durability: Resists corrosion from acids, alkalis, and solvents (pH 0–14).

4. Optical Clarity: Maintains transparency under extreme conditions for accurate visual monitoring.

Primary Function

• Level Monitoring: Provides a clear visual interface to inspect liquid/gas levels in high-temperature industrial tanks.

• Pressure Tolerance: Operates safely in systems with pressures up to 10–15 bar (varies by thickness).

• Safety Barrier: Acts as a leak-proof window, isolating internal tank conditions from external environments.

Applications

1. Chemical Processing Tanks: For aggressive acids, molten salts, or hot solvents.

2. Power Generation: Boilers, steam systems, and thermal oil reservoirs.

3. Oil & Gas: Refinery storage tanks, high-temp reactors, and LNG processing.

4. Pharmaceuticals: Sterilization autoclaves and reactors requiring hygienic visibility.

Advantages Over Alternatives

• Longevity: Outlasts soda-lime glass or polycarbonate in cyclic thermal environments.

• Safety: Tempered design minimizes fragmentation risks if damaged.

• Low Maintenance: Resists clouding, scaling, or chemical etching.

Industry Standards

• Complies with ASTM E438, ISO 3585, and DIN 7080 for high-temp applications.

**Introduction**

Shanghai Longway Special Glass Co., Ltd. has been a professional supplier in the glass industry for over 20 years. With its expertise spanning across various fields, including optics, laser, imaging, and lighting etc., the company has established itself as a trusted partner for businesses worldwide. The company's commitment to providing high-quality glass products and services has earned it a reputation as a reliable supplier of choice among major corporations and small businesses alike.

**Our Team**

The team at Shanghai Longway Special Glass Co., Ltd. consists of professional experts with extensive experience in the field of glass manufacturing. These skilled technicians have honed their expertise through years of hands-on training and continuous education, ensuring that they remain up-to-date on the latest techniques and technologies.

**Our Capabilities**

Shanghai Longway Special Glass Co., Ltd.'s capabilities include:

* Cutting: Advanced cutting equipment allows for precise cuts in a variety of glass types.

* Grinding: High-speed grinding machines enable efficient surface preparation.

* Polishing: Automated polishing systems guarantee exceptional optical clarity.

* Molding: Sophisticated molding techniques permit the creation of intricate shapes and designs.

* Blowing: Expertise in blow-and-form processing enables the production of hollow glass products, such as bottles and jars.

* Tempering: Heat-treating equipment ensures that glass products meet or exceed industry standards for thermal shock resistance.

** Our Raw Materials**

The company offers a wide range of raw materials and processed glass products, normally including:

* Optical Glass: High-quality optical glass suitable for precision applications.

* Borosilicate Glass: Durable borosilicate glass ideal for laboratory equipment and medical devices.

* Quartz Glass: Pure quartz glass utilized in various industries, including electronics and optics.

* Float Glass: Large sheets of float glass suitable for architectural applications and flat glass products.

* Soda Lime Glass: Economical soda lime glass used for a wide range of industrial and commercial applications.

**Our Quality Control Process**

At Shanghai Longway Special Glass Co., Ltd., quality control is an integral part of the manufacturing process. Each product undergoes rigorous inspection to ensure that it meets or exceeds customer expectations. This commitment to excellence has earned the company a reputation as a trusted supplier of high-quality glass products.

**Our Commitment to Excellence**

At Shanghai Longway Special Glass Co., Ltd., we are committed to delivering exceptional quality glass products that meet or exceed customer expectations. Our team of professional experts is dedicated to providing expert advice and assistance in selecting the most suitable materials and processing techniques for specific needs. We take pride in our state-of-the-art facility, equipped with cutting-edge machinery and technology, ensuring that every product meets the highest standards.

**Why Choose Us?**

Shanghai Longway Special Glass Co., Ltd. is a trusted supplier of high-quality glass products, committed to delivering exceptional quality, innovation, and customer satisfaction. With over 20 years of experience and expertise spanning across various fields, we are well-positioned to meet the evolving needs of businesses worldwide. We look forward to serving your needs and meeting your expectations.