Shut-off valves require minimal leakage, and among different types, soft-sealed valves offer the lowest leakage. However, while they provide excellent sealing performance, they are not as wear-resistant or reliable as hard-sealed valves. When considering both low leakage and reliable shut-off, soft-sealed valves can perform just as well as hard-sealed ones, especially when enhanced with additional protective measures. For example, full-function ultra-light control valves use wear-resistant alloys for the sealing surfaces, significantly improving their durability and reliability. These valves achieve a leakage rate as low as 10^-7, which meets the stringent requirements of industrial shut-off applications. This combination of tight sealing, long service life, and high reliability makes them a preferred choice in many critical systems where both performance and safety are essential. By integrating advanced materials and design, modern soft-sealed valves have overcome traditional limitations, offering a balanced solution that satisfies both sealing efficiency and operational stability.
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