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A glass tube level gauge features connecting flanges on both the upper and lower valves of the instrument; these flange connections are welded to the container being measured, thus forming a communicating vessel that allows the height of the liquid level in the container to be displayed directly on the glass tube. Safety steel balls are installed in both the upper and lower valves of the glass tube level gauge; when the glass tube breaks due to an accident, these steel balls can block the passage under the working pressure of the container, thereby automatically sealing the valve and preventing the fluid inside the container from continuing to flow out. The lower end of the glass tube level gauge is equipped with a drain valve, which is used by operators during normal production for sampling, flushing, or draining residual liquid. Glass tube level gauges are suitable for measuring the liquid level in various containers such as storage tanks, vats, and towers in the petrochemical industry. I. Applicable standards: 1. Standard for glass tube level gauges: QB776-80 \"Glass plates and tubes for level gauges\" as the applicable standard. 2. Standard for glass tube level gauges: HG21592-95 (formerly HG5-227-80). II. Features: 1. No dead zones, small size, and light weight. 2. Direct-reading instrument, with intuitive and accurate readings. 3. The valves at both ends of the glass tube level gauge are equipped with safety balls, ensuring safe and reliable operation. 4. It has a simple structure, making maintenance easy. For more information, please visit the company’s official website at http://www.yb1518.com/. Please keep this link when reproducing the content! http://www.yb1518.com/UploadFiles/20121128135424244.jpg