The traditional metal hard seal butterfly valve is used to realize the on-off and flow control components of the pipeline system, and it is extremely widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower and so on. In the known butterfly valve technology, the sealing form is a sealing structure, and the sealing material is rubber or polytetrafluoroethylene. But de…

DBB and DIB Seating for Turnnion Mounted Ball Valves…

What are the advantages and disadvantages of flat gate valve…