Do you notice the malfunction? Valves without monitoring devices make it difficult to detect failures. If both valve bodies fail, the press will not stop...
Scene content As usual, the press operation was underway, but one side of the valve had already malfunctioned. The operator continued to operate without noticing the signs of one-sided failure (air leakage from the exhaust port)... When the power to the valve was turned OFF, both valve bodies failed, resulting in none of the valves closing, which meant that secondary air could not be exhausted, and the press would not stop. The operator could face a "pinching accident."
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Key Points of Labor Safety/Machine Safety The "monitor (surveillance device)" detects valve body failures. There are limitations to human checks for air leaks. Most old presses do not have monitors, and extreme caution is required during operation.
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Do you notice the malfunction? Valves without monitoring devices make it difficult to detect failures. If both valve bodies fail, the press will not stop, increasing the risk of "pinch point accidents." Scene content: While performing press operations as usual, one side of the valve had already failed internally. The operator continued to operate without noticing the signs of one-sided failure (air leakage from the exhaust port)... When the power to the valve is turned OFF, if both valve bodies fail, none of the valves will close, so the secondary side air will not be exhausted, and the press will not stop. The operator may face a "pinch point accident." Labor safety/machine safety points: The monitoring device detects valve body failures. There are limits to human checks for air leaks. Most older presses do not have monitoring devices, so extreme caution is necessary during operation.
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Company information
Ross Asia Co., Ltd. is the Japanese subsidiary of the American company Ross Controls (established in 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 various countries. Ross Asia covers the Asian region excluding China and India, manufacturing, selling, and servicing Ross products in response to the safety requirements of key industries in each country. (ISO 9001 certified) [About Ross Controls] Based in Ferndale, Michigan, Ross designs and manufactures pneumatic valves and control systems and is globally recognized as a leader in fluid power safety solutions and poppet valve technology. Ross offers standard and customized ROSS/FLEX solutions for industrial machinery and automation applications. Keywords: Ross Asia, machine safety, pneumatic safety, hydraulic safety