The impact of the transition between autumn and winter on valves

2022-11-30View Original

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Many new valves were stored in the warehouse for several months; they were taken out for use from summer to winter, and after installation it was found that there was leakage when the valves were opened. After ruling out quality issues, it is necessary to check whether the packing has shrunk, especially in the case of soft-seal valves where the packing consists of PTFE O-rings that are highly affected by thermal expansion and contraction. In such cases, tightening the packing gland bolts can resolve the problem. If you have any other questions regarding valve usage, feel free to share them for discussion.

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The impact of the transition between autumn and winter on valves

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