Should the Anti-Leakage Ball Valve Be Opened or Closed?

1 Answers
Rob
07/30/25 5:15am
Anti-leakage ball valves should normally remain closed. Functions and Features of Anti-Leakage Ball Valves: Anti-leakage ball valves are primarily used for opening and closing the medium in pipelines and equipment. They are suitable for frequent operation, offering quick and effortless opening and closing. They have low fluid resistance. The structure is simple, with relatively small volume and light weight, making them easy to maintain. Working Principle of Anti-Leakage Ball Valves: When a valve with downstream self-relief function is in the closed position, the pipeline pressure acts on the outer surface of the upstream seat ring, pressing the seat ring tightly against the ball. If the medium leaks from the upstream seat into the valve cavity, when the pressure in the valve cavity exceeds the downstream pipeline pressure, the downstream seat will detach from the ball, allowing the pressure in the valve cavity to be relieved downstream of the valve.
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