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Valve management

2018-07-26View Original

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In chemical production, many valves remain unused after the plant starts operating. However, when a malfunction occurs and it’s necessary to operate these valves, they either fail to move or cannot be closed properly. Why is that? \ud83d\ude07\ud83d\ude07\ud83d\ude07
Reply #22018-07-27
Has it deformed under long-term compression?
Reply #32018-07-27
Rusting, deformation due to uneven stress. Valve quality
Reply #42018-07-27
It has aged. Additionally, since manual valves require fewer operations and operate in simpler conditions, many people prefer to choose cheaper ones when selecting them; this results in them not performing as well as needed when in use
Reply #52018-07-27
The valve is deformed, or the valve seat is expanded
Reply #62018-07-27
1. It won’t move – it could be due to overpressure, rust, or crystal formation of the medium… 2. It can’t be closed properly – the valve core or seat isn’t in place, or the valve core/seat is damaged, or there are foreign objects between them……

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