Precautions for replacing the packing on 2\" globe valves – Those who have participated in skill competitions, please share your advice
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What are the things to keep in mind? Just because one does a lot of work regularly doesn’t mean they can grasp the details of exams; I hope someone experienced can give some advice
Confirm that the pipeline is not filled with process medium and is in a shut-off state. 1. The existing packing must be cleaned thoroughly. 2. The new packing must be of the same type as the original one, with the same number of layers; in multi-layered connections, the layers should be staggered ； 3. When tightening the screws, do not over-tighten them, and ensure symmetry. I really haven’t done it; I don’t know about anything else.
Thank you so much; it’s very useful information!