The layered circular transparent lenses in the picture are borosilicate mirror glass, also known as high-temperature resistant lenses. They are indispensable observation windows in industrial equipment and are known as the transparent eyes of industrial equipment.
Ordinary glass is extremely prone to explosion when subjected to high temperature and sudden cooling, while borosilicate 3.3 mirror glass is mainly made of borosilicate as the main raw material, which is precision processed through high-temperature melting. It has outstanding heat resistance and can withstand large temperature changes. Some specifications can withstand several hundred degrees of high temperature, while also having good compressive and chemical corrosion resistance. It is not easily corroded by acidic and alkaline media, and has excellent light transmission performance, ensuring clear visibility of internal working conditions.
Available in various sizes, suitable for a wide range of industrial scenarios. It is installed on equipment chambers in boilers, reactors, pressure vessels, pipelines, kilns, and storage tanks. Operators do not need to open the equipment. Through this glass, they can visually observe the liquid level of the medium inside the container, material reactions, and combustion status, and grasp the real-time operation of the equipment to avoid safety risks caused by opening the lid and ensure safe and stable production.
Its edges have been polished, smooth and thick, and are suitable for sealing installation with flange mirror seats. From small-diameter pipeline observation ports to large-diameter tank observation windows, thickness and diameter can be customized as needed. Some products are engraved with DIN industrial standard labels, strictly following industrial specifications, and widely used in many industries such as chemical, pharmaceutical, energy, food processing, metallurgy, etc.
Seemingly just a simple transparent disc, it silently undertakes multiple missions of observation, isolation, and protection in industrial production. Isolating high-temperature and high-pressure media while transmitting vision, making the internal state of invisible equipment clear and controllable, is an inconspicuous but crucial basic component in modern industrial production.
