The valve was broken...

basic information

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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Applications/Examples of results

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.