The welded butterfly valve ke karolo ea bohlokoa ea likopo tse fapaneng tsamaisong ea lipeipi tsa tšepe e sa hloekang ea indasteri ea tlhahiso ea lisebelisoa tse akaretsang.Ke ts'ebetso ea matsoho kapa ea othomathiki ea valve ea bohloeki, e bonolo ho e sebelisa libakeng tse fapaneng.