Is it really safe because it has a double valve? It is safer than a single valve, but a double valve only has two valve bodies inside.
Scene content: Inside the double valve, two valve bodies are repeatedly opening and closing almost simultaneously. When the power to the valve is turned off and one side does not close (failure), the valve body on the functioning side closes, and the secondary side air is exhausted, causing the press to stop. However, the double valve can still operate if power is reapplied even when one side is in a failed state. Air leakage occurs from the valve's exhaust port, but this "failure indication" is difficult to notice.
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Points on Labor Safety/Machine Safety It cannot be said that "double valves are safe." Continuing operations with one side malfunctioning is the same as operating with a single valve, which increases the risk of "pinch accidents."
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Is it really safe because it's a double valve? It is safer than a single valve, but a double valve only has two valve bodies inside. Even if one valve fails, it will still operate when power is restored (the press will continue to operate). Scene content: Inside the double valve, the two valve bodies repeatedly open and close almost simultaneously. If one side does not close when the valve is powered off (failure), the valve body on the functioning side will close, allowing the secondary side air to be exhausted, thus stopping the press. However, even if one side of the double valve is in a failed state, it will operate again when power is restored. Air leakage occurs from the valve's exhaust port, but this "failure indication" is difficult to notice. Points on labor safety/machine safety: It cannot be said that "double valves are safe." Continuing operations with one side failed increases the risk of "pinch accidents," just like operating with a single valve.
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Company information
Ross Asia Co., Ltd. is the Japanese subsidiary of the American company Ross Controls (established December 1973). Since its founding in 1921 as a manufacturer of pneumatic equipment, Ross Controls has been widely adopted across various industrial sectors. Celebrating its 100th anniversary in 2021, the company now has manufacturing and sales bases in the United States, Germany, France, the United Kingdom, Japan, China, Brazil, India, and Canada, providing ISO-compliant products and products that meet safety standards in each country. Ross Asia covers the Asian region excluding China and India, manufacturing, selling, and servicing Ross products in accordance with the safety requirements of the core industries in each country. (ISO 9001 certified) [About Ross Controls] Based in Ferndale, Michigan, Ross is globally recognized as a leader in pneumatic valve design and manufacturing, as well as fluid power safety solutions and poppet valve technology. Ross provides standard and customized ROSS/FLEX solutions for industrial machinery and automation applications. Keywords: Ross Asia, machine safety, pneumatic safety, hydraulic safety
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