【Q&A No. 021】2018.01.21
Thread Content
【Q&A No. 021】2018.01.21 Where on the pressure gauge should the warning limit for the maximum pressure of the equipment be marked? Why? The highest warning line on the pressure gauge should be marked on its dial, not painted on the dial glass. Because if it is marked on the dial glass, the vibration warning line may deviate from the specified value, leading the operator to make incorrect judgments. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Due to the limits on the number of posts in the “One Question per Day” section, “One Image per Day” has been moved to the registered devices section; you can access it through the directory I posted. For management purposes, if you need to view content from a few days ago, please go through the summary post below. 2018 Chemical Engineering Technology Training – Daily Question Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=18889712018 Registered Equipment Section – Daily Image Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970
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The highest warning line on the pressure gauge should be marked on its dial, not painted on the dial glass. Because if it is marked on the dial glass, the vibration warning line may deviate from the specified value, leading the operator to make incorrect judgments.
On the gauge’s dial, it is easy to observe the readings, allowing for timely adjustments and thus preventing accidents
At 2/3； Avoid equipment damage
The highest warning limit of the pressure gauge should be marked on its dial; it should not be drawn on the gauge glass, as vibrations could cause it to deviate from the set value, leading to incorrect judgments by the operator.
At 2/3 of the gauge’s dial, it is easy to observe and make timely adjustments to prevent accidents
The body of the pressure gauge serves to prevent the gauge face from loosening, which could cause changes in the position of the markings
The highest warning line on the pressure gauge should be marked on its dial, not painted on the dial glass. Because if it is marked on the dial glass, the vibration warning line may deviate from the specified value, leading the operator to make incorrect judgments.
The highest warning limit of the pressure gauge should be marked on its dial; it should not be drawn on the gauge glass, as vibrations could cause it to deviate from the specified value, leading to incorrect judgments by the operator.