Ball valve and the like having locking handle

作者： Leonard Joseph Hartmann

DOI:

关键词: Mechanical engineering 、 Valve guide 、 Electrical conduit 、 Butterfly valve 、 Structural engineering 、 Four-way valve 、 Ball valve 、 Globe valve 、 Engineering

摘要: In a valve of the type comprising housing having conduit for fluid flow, closure relatively mounted within housing, stem operatively associated with closure, and handle stem, is displaceable relative to between position wherein clears conjoint rotation adapted engage prevent unintentional opening if closed closing opened.