Huadian Technology ›› 2010, Vol. 32 ›› Issue (3): 59-61.

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Treatments and analysis on water leakage of butterfly valve

SHEN Chunfeng   

  1. China Huadian Engineering Corporation Limited, Beijing 100035, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2010-03-25

Abstract: Water leakage was appeared in the turbine inlet main valve (butterfly valve)after a long term operation in Dagang Hydropower Station, the main sticking point was found out by several times inspecting. In this paper its causes were analyzed comprehensively combining with the treatment experience, and according to the characteristics of the smalltype and mediumtype hydropower stations, some notices during the inlet valve installation and some effective solution ways for solution the problem have been put forward.

Key words: butterfly valve water leakage, processing, cause analysis, preventive measures